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R2001-0055 04-23-01 RESOLUTION NO. R2001-55 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF PEARLAND, TEXAS, AWARDING A BID FOR THE PURCHASE OF SBR EQUIPMENT ASSOCIATED WITH THE FAR NORTHWEST WASTEWATER TREATMENT PLANT. BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF PEARLAND, TEXAS: Section 1. That the City opened bids for the purchase of SBR equipment, and such bids have been reviewed and tabulated. Section 2. That the City Council hereby awards the bid to Aqua-Aerobic Systems in the amount of $712,395.00. Section 3. That the City Manageror his designee is hereby authorized to execute a contract for the purchase of SBR equipment associated with the Far Northwest Wastewater Treatment Plant. PASSED,APPROVEDandADOPTEDthisthe 23 dayof April , A.D., 2001. TOM REID MAYOR ATTEST: ,~N G )~"~F--~,~ ~/ S E.,CRETARY -'~/' APPROVED AS TO FORM: DARRIN M. COKER CITY ATTORNEY City of Pearland SBR - Pre-Purchase Documents SECTION 00400 FORM OF AGREEMENT BETWEEN VENDOR AND THE CITY OF PEARLAND STATE OF TEXAS § COUNTY OF BRAZORIA § THIS AGREEMENT, made and entered into this 23rd day of April , A.D., 2001, by and between the City of Pearland of the County of BRAZORIA, and State of Texas, Party of the First Part, hereinafter termed OWNER, and Aqua-Aerobic Systems~ Inc. of the City of Rockford , County of l,/fnnebal.~o and State of I'l linoi$ ., Party of the Second Part, hereinafter termed VENDOR. WITNESSETH: That for and in consideration of the agreements hereinafter mentioned, to be made and performed by the Party of the First Part (OWNER), and under the conditions expressed in the bond bearing even date herewith, the said Party of the Second Part (VENDOR), hereby agrees with the said Party of the First Part (OWNER), to execute a Purchase Order Agreement with the General Construction Contractor selected by the Owner at a later date to furnish the following: "Sequencing Batch Reactor (SBR) Equipment (B2001-025) for the Pearland, Texas, Far Northwest Environmental Center" and all extra work in connection therewith, under the terms as stated in the Specifications and at his (or their) own proper cost and expense to furnish all the materials, superintendence, labor, insurance, and other accessories and services necessary to complete the said construction, in accordance with the conditions and prices stated in the Proposal attached hereto, and in accordance with the Conditions of Agreement, Plans and other drawings and printed or written explanatory matter thereof, and the Specifications and addenda, as modified by Exhibitsl and 2 the Alternate Bid scope of supply, therefor, as prepared by: LOCKWOOD, ANDREWS & NEWNAM, INC. herein entitled the ENGINEER, each of which has been identified by the VENDOR and the ENGINEER, together with the VENDOR's written Proposal, the specifications, and the Performance Bonds hereto attached, all of which are made a part hereof and collectively evidence and constitute the entire contract. The VENDOR hereby agrees to execute the Purchase Order Agreement with the General Construction Contractor within fourteen (14) days after the date written notice to do so shall have been given to him, and to substantially complete the work within 154 calendar days after the date of the written notice to commence work, subject to such extensions of time as are provided by the Specifications. The Owner agrees to assign to the General Construction Contractor the responsibility of executing a Purchase Order with the VENDOR, receiving, inspecting, unloading, storing equipment assemblies, and installing the equipment per the VENDOR's instruction for the price or prices shown in the proposal, which forms a part of this contract, such payments to be subject to the Special Conditions of the contract. 00400-1 IN WITNESS WHEREOF, the parties to these presents have executed this Agreement in the year and-:d~ above written. ~' City of Pearland Aqua-Aerobic Systems, Party of the First Part (OWNER) Party of the Second Part (VENDOR) ~,~,~s~:3Y, e c~O~_ END OF SECTION 00400-2 Any correspqndenee in relation to tiffs bond should bo directed to: BOND DEPT. WAUSAU INSURANCE COMPANIES City of Pcarland PO BOX 8017 SBR - Pre-Purchase Documents WAUSAU, WI 54402401? 1-~00-4~5-~.01 SECTION 00410 PERFORMANCE BOND STATE OF TEXAS § Bond No. 346-010-992 COUNTY OF BRAZORIA § Aaua-Aerobic KNOW ALL MEN BY THESE PRESENTS: That Systems. Inc. of the County of Winnebago and State of._~, as principal, and Employers Insurance of Wau.sau_ A . authorize~ under the laws of the State of Texas to act as surety on bonds for principals, are he~an~a~rm~yI~un~ unto C~ty of Pearland (OWNER), in the penal sum of I00 percent of tho bid price for the payment whereof, the said Principal and Surety bind themselves, and their heirs, administrators, executors, successors and assigns, jointly and severally, by these presents: WHEREAS, the Principal has entered into a certain written contract with the Owner, dated the 23rd day of April ,20 01, to execute a Purchase Order Agreement with the General Construction Contractor to furnish: Sequencing Batch Reactor (SBR) Equipment (B2001-025) for the Far Northwest Environmental Center which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at length herein. NOW THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH that, if the said Principal shall faithfully perform said Contract and shall in all respects duly and faithfully observe and perform all and singular the covenants, conditions and agreements in and by said contract agreed and covenanted by the Principal to be observed and performed, and according to the true intent and meaning of said Contract and Plans and Specifications hereto annexed, then this obligation shall be void; otherwise to remain in full force and effect; "PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Chapter 2253 of the Texas Government Code as amended and all liabilities on this bond shall be determined in accordance with the provisions of said Statute to the same extent as if it were copied at length herein." Surety, for value received, stipulates and a~ees that no change, extension of time, alteration or addition to the terms of the contract, or to the work performed thereunder, or the plans, specifications, or drawings accompanying the same, shall in any way affect its obligation on this bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the contract, or to the work to be performed thereunder. 00410-1 IN WITNESS WHEREOF, the said l~r, incipal and Surety have signed and sealed this instrument this 10th day of September ,2001.. Aqua-Aerobic Systems, Inc. Emnl_~,,er5 T~,,r~oo n~ wm,,~a,, A Mutual Compar Prin¢ipa.~ ~/./~ ~ ~ ~urety ~ar~on Van Dyke .Title: Title: Attorney-In-Fact -'~ddres~ Address: ~ :-'6306~orth ~pine Road 1431 Opus PL Sro 300 c ,~ord. IL 61111 Do.ers Grove, IL 60515 The name and address of the Resident Agent of Surety is: J. C. Williams Wausau Insurance Companies 105 Decker Ct. Irving, TX 75062 END OF SECTION 00410-2 Any ¢orreapondence in relation to this [-~'~ ~ '~ ~--'~ ~--'~' ~WAUSAU bond ahould be directed to: BOND DEPT WAUSAU INSURANCE COMPANIES PO BOX 8017 WAUSAU WI 54402-8017 1-800-435-4401 Wausau Insurance Companies Bond No. 346-0`10-992 Texas Statutory Payment Bond (Public Works) KNOW ALL MEN BY THESE PRESENTS, that Aqua-Aerobic Systems, Inc. (hereinafter called the Principal), as Principal, and EMPLOYERS INSURANCE OF WAUSAU A Mutual Company (hereinafter called the Surety), as Surety, are held and firmly bound unto City of Pearland, Texas (hereinafter called the Obligee), in the amount of Seven Hundred Ten Thousand Eight Hundred Ninety Three and 001`100 Dollam ($7'10,893.00) for the payment whereof, the said Principal and Surety bind themselves, and their heirs, administrators, executors, successors and assigns, jointly and severally, firmly by these presents. WHEREAS, the Principal has entered into a certain written contract with the Obligee, dated the 23rd day of April, 200`1 to which contract is hereby referred to and made a part hereof as fully and to the same extent as if copied at length herein. NOW, THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, that if said Principal shall pay all claimants supplying labor and material to him or a subcontractor in the prosecution of the work provided for in said contract, then, this obligation shall be void; otherwise to remain in full force and effect. PROVIDED, HOWEVER, that his bond is executed pursuant to the provisions of Chapter 2253 of the Texas G0~ernment Code amended by Acts of the 73rd Legislature, and all liabilities on this bond shall be determined in agd~'rd~n'~'~ With~h~e provisions of said Article to the same extent as if it were copied at length herein. ~'-'~ ~ .. IN WITNESS WHEREOF, the said Principal and Surety have signed and sealed th s instrument thi_~ ;10th d~ of..~ - September 2001 :~ :-- . =.- Aqua-Ap~obip~Sy~tems, Inc. ~/~, ~ ~- ~ ~/ //~/'¢.~ Prin¢ip~ '~-5~/~- 7~-,,,. (Sea,) EMPLOYERS INSURANCE OF WAUSAU A Mutual Company · CORPORATE SURETY (Seal) ATTORNEV(-INALeACT Wausau Insurance Companies 105 ~ecker Ct. Irving TX 75062 SC0088 03 -99 No. 204-O95 EMPLOYERS INSURANCE OF WAUSAU A Mutual Company POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS: That the EMPLOYERS INSURANCE OF WAUSAU A Mutual Company~ a corporat on duly organized and existing under th(, laws of the State of Wisconsin, and having its principal office in the City of Wausau, County of Marathon, State of Wisconsim has made, constituted and appointed, and does by these presents make, constitute and appoint MARION VAN DYKE, MELISSA JABLE its true and lawful attorney-in-fact with fu]l power and authority hereby conferred n ts name, p ace and stead, to execute, seal. acknowledge and deliver ANY OR ALL BONDS. UNDERTAKINGS. RECOGNIZANCES OR OTHER WRITTEN OBI.IGATIONS IN THE NATURE THEREOF INCLUDING CONSENTS OF SURETY AND WAIVERS TO THE r~ CONDITIONS OF CONTRACTS. NOT TO EXCEED TIIE PENAL SUM OF TEN MILLION DOLLARS LU ($10,000,000). / and to bind the corporation thereby as fully and to the same extent as if such bonds were signed by the President, sealed with _Z th(, corporate seal of the corporation and duly attested by its secretary hereby ratifying and confirming all that the said ~ attorney-in-fact may do in the premises. < This power of attorney is granted pursuant to the following resolution adopted bv theBoardof )rectorsofsa d Companvata o- meeting duly called and held on the 1Sth day of May. 1973, which resolution is still in effect: ~- "RESOI,VEI) that the President and anv Vice President-- e ect ve ~r appo ntve-- of EMPLOYERS INSURANCE OF <~ WAUSAUAMutualCompanybe, andthateachofthemherebyis, authorzedt executepowersofattorneyqua fyng I-- the attorney named in the given p.wer of attorney to execute on behalf of EMP OYERS INSURANCE OF WAUSAU A O MutuaICompanvbonds undertakings and all contractsofsuretvshp an l that any secretary rassstantsecretarybe. and that each or mv of them hereby is. authorized to attest the execution of any such power of attorney, and to attach LU thereto the seal of EMPLOYERS INSURANCE OF WAUSAU A Mutual Company." O "EURTHER RESOI.VEI). that the signatures of such officers and the seal .fEMPLOYERS INSURANCE OF WAUSAU t~ A Mutunl Comp ~ny may be affixed t. any such power of attorney or to any certificate re at ng thereto by facs m e. and I-- any such p.wer of attorney or certificate bearing such facsimile s gn ~tures and fees mile seal shall be valid and binding Z upon th(. EMPI,()YERS INSURANCE OF WAUSAU A Mutual ('ompanv when so affixed and in the future w th respect :~ to any bnnd. undertaking or contract of suretyship to which it is attached." I.u IN WITNESS WHEREOF. EMPI.OYERS INSURANCE OF WAUSAU A Mutual Company has caused these presents to be F- < signed by the vice president and attested by its assistant secretary, and its corporate seal to be hereto affixed this 1 ST day of F- ~ tn APRIL .2000 . ~ -- /:.. ,..~ EMPLOYERS INSURANCE OF WAUSAU A Mutual Company -- Timothy C. Mulloy Vice President O I-- R.J. Bc/steman,/ Assistant Secretary ~ STATE OF WISCONSIN ) O COUNTY OF MARATHON ) ~ Onthis 1ST dayof APRIL , 2000, before me personaily came ~ Timothy C. Mulloy O . to me known, who being by me duly sworn, did depose Q. and say that he is a vice president of the EMPLOYERS INSURANCE OF WAUSAU A MutualCompany. the corporation described in and which CI executed the above instrument; that he knows the seal of said corporation; that the seal affixed to said instrument is such corporate seal and that it was so .% affixed by order of the Board of Directors of said corporation and that he signed his name thereto by like order. < IN WITN ESS W HEREOF. I have hereunto set my hand and affixed my olficial seal the day and year herein first above wr en (~ STATE OF W/SCONSIN l-- STATE OE WISCONSIN ) MY COMM/SSION ]{XPIRJ~S ~JNg ~0, 2002 ('ITY OF WAUSAU ) ss. ('O/INTY CE MARATHON ) CERTIFICATE I. the undersigned, assistant secretary of EMP OYERS INSURANCE OFWAUSAU A Mutual Company, a Wisconsin c~}rlmration, d. herehy certify that the f. regoing and atta('hed power of attorney WHICH MUST CONTAIN A VALII)ATING STATEMENT PRINTED IN THE MARGIN THEREOF 1N RED 1NK. remains in full force and has n.t heen revoked;and furthermore that the resolutbm ~ffthe B.ard .fl)irectorsset f~rth in the pnwer~ffattornoyi.qst n force Signed and sealed in the City of Wausau. Marath{ n County State of W scons n. this 10th day of September 2001. ' ~,~.~ R.J. Besteman / / - Assistant Secretary NOTE: IF YOU tlAVE ANY QUESTIONS REGARDING TIlE VALIDITY OR WORDING OF THIS POWER OF ATTORNEY. ('Al,I. TOI.I. EREE (800) 826-1661. dN WISCONSIN. ('Al,l, (800) 472-0041). Notarial Acknowledgement - Attorney in Fact STATE OF ILLINOIS County of DUPAGE Onthis 10th day of September ,: 2001, b~fore me, KELLY BORZELLO a Notary Public in and for said County, State aforesaid, residing therein, duly commissioned and sworn, personally appeared MARION VAN DYKE known to me to be the person whose name is subscribed to the within instrument as the attorney in fact of EMPLOYERS INSURANCE OF WAUSAU A Mutual Company and acknowledged to me ~hat he subscribed the name of EMPLOYERS INSURANCE OF WAUSAU A Mutual Company thereto as surety, and his own as attorney in fact. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal, at my office in the said county of DUPAGE the day and year in this certificate first above written. - -(l ('./ DUPAGE Notary Public in and'for the county 'e~lw State of ILLINOIS ': My commission expires SEPTEMBER 12, 2003 NOi'ARY PL!BLIC 5;':AT[ OF ILtlNOiS 815-4216 192 Exhibit R200'l 5 Pre -Purchase Documents for The Far Northwest Environmental Center Sequencing Batch Reactor Equipment B2001-025 City of Pearland, Texas February 2001 LAN Project No. 0849-20-008-400 eersecer::1L9fer-fet% 3 . �_ 1 `' �� ' . i fy DENNIS KEYES ,17 I•••1 ................. .ne..... O• Clat 1 �Y i �=. _ 7� 7 3 Co .:4 r��`.3 c� ti � Prepared by Lockwood, Andrews & Newnam, Inc. 1500 CityWest Blvd. Houston, TX 77042 City of Pearland SBR - Pre -Purchase Documents TABLE OF CONTENTS BIDDING AND CONTRACT REQUIREMENTS 00010 - Invitation to Bid 00100 - Instructions to Bidders 00300 - Form of Proposal 00400 - Form of Agreement Between Vendor and the City of Pearland 00410 - Performance Bond 00600 - Purchase Order Agreement Between Vendor and Construction 00620 - Sequencing Batch Reactor (SBR) Equipment Maintenance and Contractor Performance Bond 00800 - Special Conditions 00810 - Affidavit of Guarantee 00820 - Affidavit of Bills Paid TECHNICAL SPECIFICATIONS DIVISION 1 - GENERAL REQUIREMENTS 01330 - Submittals 01340 Shop Drawings, Product Data and Samples 01600 - Products 01655 - Starting of Systems 01661 - Instruction of Operations and Maintenance Personnel 01730 - Operations and Maintenance Data DIVISION 11 - EQUIPMENT 11100 - Sequencing Batch Reactor (SBR) Equipment 11316 - Nonclog Submersible Sewage Pumps and Accessories 11379 - Positive Displacement Blower DIVISION 15 - MECHANICAL 15139 - Valves and Related Items DIVISION 16 - ELECTRICAL 16120 - Insulated Conductors 16130 - Raceways 16222 - AC Electric Motors ATTACHMENTS SBR Selection Criteria Site Map Exhibit 1 — Alternate Bid Scope of Supply Exhibit 2 — Modifications to the Alternate Bid Scope of Supply END OF TABLE OF CONTENTS No. of Pages 2 5 3 2 2 2 2 5 1 1 2 4 4 4 3 2 15 8 6 6 3 4 6 February 13, 2001 ADDENDUM NO. 1 Pre -Purchase Documents for The Far Northwest Environmental Center Sequencing Batch Reactor Equipment B2001-025 City of Pearland, Texas LAN PROJECT NO. 0849-20-008-400 TO: All Planholders FROM: Lockwood, Andrews & Newnam, Inc. 1500 CityWest Boulevard Houston, Texas 77042 Gentlemen: Notice is hereby given that the following additional information and changes shall become part of the Contract Documents of the above referenced project: CHANGE OF PRE -BID CONFERENCE TIME: The mandatory pre -bid conference time has been changed to 2:30 P.M. Monday, February 19, 2001 from 9.00 A.M. Monday, February 19, 2001. Sincerely, J. Dennis Keyes, P.E. Project Engineer END OF ADDENDUM NO. 1 ADDENDUM No. 1 has been received and the contents understood. Date: Name (signature) (type name) (company name) February 20, 2001 ADDENDUM NO. 2 Pre -Purchase Documents for The Far Northwest Environmental Center Sequencing Batch Reactor Equipment B2001-025 City of Pearland, Texas LAN PROJECT NO. 0849-20-008-400 TO: All Planholders FROM: Lockwood, Andrews & Newnam, Inc. 1500 CityWest Boulevard Houston, Texas 77042 Gentlemen: Notice is hereby given that the following additional information and changes shall become part of the Contract Documents of the above referenced project: CLARIFICATIONS: 1. Section 11100, Vender will supply all conduit, conductors and raceways for control wiring between control panels and equipment. 2. Section 11100, paragraph 1.6 F.5, Fixed decanters are not acceptable. 3. Section 11100, paragraph 1.6 F.9, All panels must be NEMA 4X, 316 stainless steel. 4. Section 11100, paragraph 2.2 C, Type 304 stainless steel diffuser assembly with base socket to receive a portable electric winch will be required. 5. Section 11100, paragraph 2.3 B, Manufacturer substitutions are not acceptable. 6. Section 11100, paragraph 2.5 B.2, The Echornax XPS-15 Transducer is required. 7. Section 11100, paragraph 2.8 A, A General Electric model 90/30 PLC is required. 8. Section 11100, paragraph 2.8 C.1 & C.2, "40 hours of operator training" and "40 hours of engineering training" is equivalent to 80 total hours of training. THE FAR NORTHWEST ENVIRONMENTAL CENTER SEQUENCING BATCH REACTOR EQUIMENT ADDENDUM NO. 2 PAGE 2 9. Section 11379, Positive Displacement Blowers will be located indoors. 10. Section 11379, paragraph 2.5 A, All control panels shall be NEMA 4X stainless steel. 11. Section 15139, paragraph 2.8 D, Continuous duty motors capable of remote operation based on a 4-20 mA signal are required. 12. Section 15139, paragraph 2.8 F.2, Local `Open -Stop -Close" stainless steel pushbuttons c/w metal guards to protect against accidental tripping are required. 13. Provide energy -efficient motors meeting the requirements of Section 16222, paragraph 2.1 G. TECHNICAL SPECIFICATIONS: 1. Replace TOC-1 with new TOC-1, attached. 2. Section 00010, Replace paragraph 1.0 A, with the following: "Sealed bids, in duplicate, addressed to the City of Pearland, Attention: Purchasing Officer, will be received until two o'clock (2:00 PM), Friday, February 23, 2001 at the City of Pearland, City Hall 3519 Liberty Drive, Pearland Texas 77581, and then publicly opened and read aloud for furnishing Sequencing Batch Reactor Equipment B2001-025 for the Far Northwest Environmental Center 2.0 MGD Wastewater Treatment Plant. A mandatory prebid conference will be held at the office of Lockwood Andrews and Newnam, Inc., 1500 CityWest Blvd., Houston, Texas 77042, at 2:30 PM, Monday, February 19, 2001." 3. Add Section 00620, Sequencing Batch Reactor (SBR) Equipment Maintenance and Performance Bond attached. 4. Section 00800, Replace paragraph 7.A., with the following: "Prior to delivery of the equipment, the Vendor shall furnish to the General Construction Contractor four (4) copies of manuals giving installation, testing and operation instructions, maintenance procedures parts list and other pertinent information as required by Section 01730 `OPERATION AND MATNTENANCE DATA'." 5. Section 01330, Replace paragraph 1.3 A.8, with the following: "The successful bidder shall provide, within 4 weeks of signing the agreement with the Owner, the necessary drawing for the Engineering Detail Design. These drawings shall be THE FAR NORTHWEST ENVIRONMENTAL CENTER SEQUENCING BATCH REACTOR EQUIMENT ADDENDUM NO. 2 PAGE 3 provided in Microstation, or AutoCAD version 14 or earlier." 6. Section 11100, Replace paragraph 1.6 F.3, with the following: "The decanter mechanism shall be constructed of Type 304 stainless steel with a fiberglass float." 7. Section 11100, Replace paragraph 2.3 E 2, with the following: "The minimum reserve buoyancy shall be 1765 pounds " 8. Section 11100, Replace paragraph 2.4 J.1, with the following: "Each unit shall include No. 8 four -conductor power cable wired into the motor conduit box and terminating at the basin wall. Electrical cable shall be supplied with kellems grips at the motor and basin wall terminations. Electrical cable floats for flotation of electrical service cable shall be provided. Attachment of cable and supply of Junction box/disconnect at the basin wall shall be the responsibility of the installing contractor." 9. Section 11100, Replace paragraph 2.7 C.2, with the following: "Single door control cabinets shall be manufactured from 16-gauge Type 316 stainless steel. Double door control cabinets shall be manufactured from 12-gauge Type 316 stainless steel. Cabinet design shall comply with NEMA 4X. The cabinet shall contain an internal removable panel mounted on studs welded to the cabinet. The seams of the cabinet shall be continuously welded, ground smooth and passivated. The cabinet shall have a No. 4 finish in accordance with ASTM A480. The panel door shall be continuously hinged and sealed with a permanently attached oil -resistant gasket. A metal pocket shall be provided on the inner side of the door for holding drawings folded to an 8-1/2" x 11" size. Panels shall have a 3- point latching mechanism with locking pistol grip type handle. Panel shall be furnished with two sets of keys." 10. Section 11100, Insert paragraph 3.2, as follows: "The manufacturer shall provide 120 hours of job site install assistance of a factory trained representative. Services to be provided are installation inspection assisting the General Contractor with equipment installation and supervision of initial equipment start-up. The manufacturer shall include travel expenses and subsistence in the bid." 11. Section 11316, Replace paragraph 1.4, with the following: "Provide pumps as manufactured by Flygt, Gorman -Rupp, Fairbanks -Morse, or approved equal." THE FAR NORTHWEST ENVIRONMENTAL CENTER SEQUENCING BATCH REACTOR EQUIMENT ADDENDUM NO. 2 PAGE 4 12. Section 11316, Replace paragraph 2.2, with the following: "The pumps shall be capable of handling waste sludge. The discharge connection elbow shall be permanently installed in the basin along with the discharge piping. Anchor bolts for the discharge connection elbow shall be Type 316 stainless steel. The pumps shall be automatically connected to the discharge elbow when lowered into place, and shall be easily removed for inspection or service. There shall be no need for personnel to enter the basin to either disconnect or reconnect the pump. Sealing of the pumping unit to the discharge connection elbow shall be accomplished by a simple linear downward motion of the pump. A sliding guide bracket shall be an integral part of the pump unit. The entire weight of the pumping unit shall be guided by no less that two guide bars and pressed tightly against the discharge connection elbow, with metal -to -metal contact. Sealing of the discharge interface by means of a diaphragm, 0-ring, or other devices will not be acceptable. No portion of the pump shall bear directly on the floor of the wet well, The pump, with its appurtenances and cable, shall be capable of continuous submergence under water without loss of watertight integrity to a depth of 65 feet. Each pump shall be provided with a Type 316 stainless steel lifting cable secured to a stainless steel eyebolt embedded in the top slab." 13. Section 11316, Replace paragraph 3.1, with the following: "The pump manufacturer shall warrant the units being supplied to the Owner against defects in workmanship and material for a period of 1 year under normal use, operation and service. The warranty s_1all be in printed form and apply to all similar units." 14. Section 11316, Replace paragraph 2.15 A, with the following: "A complete control panel shall be provided. Control panels shall be NEMA 4X Type 316 stainless steel. The control panel shall contain motor starters, fused switches, alternator, control power transformer, relays, selector switches, indicating light, alarms, pressure gages and pressure switches, elapsed -time meter for each pump, etc. The control panel shall be designed to operated on a 480 volt, 3-phase, 60-hertz power supply. Control panels shall have an outside security door to prevent unauthorized access to the panel controls. Pump controls shall be in SBR control panel. Pump control panels shall not be located on the SBR basin. Provide a pump on/off switch on each SBR basin." 15. Section 11379, Add to paragraph 1.6 J the following: "The Sound Power Level (PWL) of any equipment shall not exceed 85 dbA (Re: 10-12 watts) at one meter from the equipment surface as defined by ASME PTC-36-1985 Measurement of Industrial Sound." 16. Section 11379, Replace paragraph 2.1 B, with the following: "Dresser -Roots." THE FAR NORTHWEST ENVIRONMENTAL CENTER SEQUENCING BATCH REACTOR EQUIMENT ADDENDUM NO. 2 PAGE 5 17. Section 11379, Replace paragraph 2.9 A.1, with the following: "Performance Test. The blower shall be tested at design operating speed in accordance with ASME PTC 9 (latest revision) requirements. The data shall be recorded for the entire range of the blower performance curve." Sincerely, J. Dennis Keyes, P.E. Project Engineer END OF ADDENDUM NO. 2 ADDENDUM No. 2 has been received and the contents understood. Date: Name (signature) (type name) (company name) City of Pearland SBR - Pre -Purchase Documents SECTION 00010 INVITATION TO BID 1.0 INVITATION TO BID A. Sealed bids, in duplicate, addressed to the City of Pearland, Attention: City Secretary, will be received until two o'clock (2:00 PM), Friday, February 23 2001, at the City of Pearland, City Hall, 3519 Liberty Drive, Pearland, Texas 77581, and then publicly opened and read aloud for furnishing Sequencing Batch Reactor Equipment, B2001- 025, for the Far Northwest Environmental Center 2.0 MGD Wastewater Treatment Plant. A mandatory prebid conference will be held at the office of Lockwood, Andrews & Newnam, Inc., 1500 CityWest Blvd., Houston, Texas 77042, at 9:00 AM Monday, February 19, 2001. B. The work includes furnishing Sequencing Batch Reactor Equipment, Blowers, Control and Accessories. C. The project is located in the City of Pearland, Brazoria County, Texas. D. Each bid must be accompanied by a bid security (bid bond or certified or cashier's check) for the sum of five percent (5%) of the amount of the maximum total bid. Bid securities must be made payable to the City of Pearland. E. Plans, specifications and bidding documents may be purchased at the office of Lockwood, Andrews & Newnam Inc., 1500 CityWest Blvd., Houston, Texas 77042, for the price of Thirty -Five Dollars ($35.00) per set. Contact Mr. Dennis Keyes, P E for the documents. No refunds will be made. Said documents may be examined free of charge at the office of the A.G.C. or F.W. Dodge Corporation F. The Owner reserves the right to reject any and all bids and waive any or all irregularities. No bid may be withdrawn until the expiration of sixty (60) days from the date the bids are received. 2.0 QUESTIONS AND INTERPRETATIONS A. Bidder is required to study Bid documents, the site, and conditions affecting the Work, and submit questions in writing on interpretation of those documents and conditions, or other factors affecting the Work, to: Mr. Dennis Keyes, P E Lockwood, Andrews & Newnam, Inc. 1500 CityWest Blvd. Houston, Texas 77042 Telephone: 713-821 0410 Fax: 713-266-8971 with a copy to: Mr. John Hargrove, P.E., City Engineer City of Pearland 3519 Liberty Dr. Pearland, Texas 77581 5416 Telephone 281-485-2411 Fax: 281-485-8764 00010-1 B. Written questions may be submitted by facsimile addressed to the Engineer at 713-266-8971. Receipt of the facsimile by the Engineer may be verified by calling 713-821-0410. All facsimile communications shall be confirmed by mailing the original correspondence to the above address. END OF SECTION 00010-2 City of Pearland SBR - Pre -Purchase Documents SECTION 00100 INSTRUCTIONS TO BIDDERS 1.0 PREPARATION OF BIDS Unless otherwise directed in the Invitation to Bidders, bids shall be submitted in duplicate upon the prescribed forms, or copies thereof. Bids shall be prepared in compliance with the requirements of the Invitation to Bidders, these instructions and the instructions printed on the prescribed forms. All blank places on the Bid Form must be filled in as noted, in ink with amounts extended and totaled, and no changes shall be made in the phraseology of the forms or of the items mentioned therein. Any bid may be deemed irregular which contains any omission, erasure, alteration, additions, irregularity of any kind, or item not called for, or which shall in any manner fail to conform to the conditions of the Invitation to Bidders. The bidder shall sign his Bid in the blank space provided. If the bid is made by a partnership or corporation the name and address of the partnership, or corporation shall be shown, together with the name and address of the partners or officers. If the bid is made by a partnership it must be acknowledged by one of the partners; if made by a corporation, it must be acknowledged by one of the officers, accompanied by Corporate Seal. In order to ensure consideration, the proposal must be enclosed in a sealed envelope plainly identified by the name of the project. Supplemental data sheets required to provide all data necessary to complete the manufacturer selection criteria shall be included in the same sealed envelope with the Proposal. 2.0 INTERPRETATION OF CONTRACT DOCUMENTS AND TECHNICAL SPECIFICATIONS AND PLANS Bidders desiring further information, or further interpretation of the Contract Documents and Technical Specifica- tions and Plans, must request such information from the Engineer at least 5 working days prior to the Bid Opening. Answers to all such requests will be given in writing to all bidders, in Addendum form, and all Addenda will be bound and made a part of the Contract. No other explanation or interpretation will be considered official or binding. Should a bidder find discrepancies in, or omissions from the Contract Documents Technical Specifications, or Plans or should the bidder be in doubt as to their meaning the bidder should notify the Engineer at once in order that a written addendum may be sent to all bidders. It is the responsibility of the bidders to know that they have received all such addenda, complete files of which will be maintained in the office of the Engineer and in the office designated to receive the bids. The bidder is further cautioned that exceptions to the specification may, at the sole discretion of the Owner, be grounds for declaring the bid unresponsive. 3.0 AWARD OF CONTRACT Each bid shall remain open for sixty (60) days after receipt of the bids. The Vendor may not withdraw their bid during this period. This period is exclusive of the one (1) year commitment after award required of the selected bidder. Each bid submitted shall be deemed a commitment by the bidder to honor his bid for a period of one (1) year from the date that the bids are awarded, and if the Owner elects to have a contract awarded to a General Construction Contractor within said one (1) year period, the bidder shall be obligated to enter into a contract with the General Construction Contractor in accordance with the terms of such bid and give such bonds as are specified in the bidding document. A thorough analysis will be made of all bids submitted. Award will be made to the responsible bidder who, in the Owner's judgement will be most advantageous to the Owner and result in the best and most economical completion of the work. The right is reserved to reject any or all bids and to waive technical defects, as the interest of Owner may require. A bidder may withdraw his bid without prejudice to himself, by submitting a written request for its withdrawal to the City Secretary before the expiration of the time during which a bid may be submitted, but not after the bids have been opened and read. 00100-1 4.0 QUALIFICATION OF BIDDERS A. To demonstrate his qualifications for the Project, each bidder must submit with his proposal written data as to the bidder's qualifications as required by the Sequencing Batch Reactor (SBR) manufacturer's selection criteria to demonstrate the bidder's ability to provide and deliver the SBR equipment specified that will perform as required by these Specifications. B. Equipment manufacturer shall be regularly engaged in the production of equipment of the size and character herein specified for a minimum of five (5) years. The City reserves the right to reject any bid if the evidence is deemed unsatisfactory by the Owner. 5.0 CONDITIONS OF WORK Each bidder is expected to have read and to be thoroughly familiar with the Contract Documents and Technical Specifications. Failure to do so will not relieve a bidder of his obligation to furnish all material and labor necessary to carry out the provisions of the Contract and to complete the contemplated work for the consideration set forth in his bid. Each bidder shall assure himself that the proposed facilities can be built in accordance with the plans and specifications at the location shown in compliance with all applicable local, state and federal laws and requirements including but not limited to building codes, health rules and OSHA rules and regulations. The submission of a bid will constitute an incontrovertible representation by the bidder that he has complied with every requirement of this Article. 6.0 TIME OF COMPLETION The number of days for the completion of work shall be as set forth in Paragraph 2.0 of Section 00300, "FORM OF PROPOSAL" 7.0 NUMBER OF SIGNED SETS OF DOCUMENTS Contract will be prepared in five counterpart (original signed) sets. 8.0 PRE -AWARD CONFERENCE Prior to award of a Contract to the successful bidder, the Vendor shall meet with the Engineer in the Engineer's office at a time set by the Engineer. Schedules of procedures shall be agreed upon at this conference 9.0 REQUIREMENTS FOR SUBCONTRACTORS AND SUPPLIERS A. If the Bidder anticipates using subcontractors to construct any portion of the project, the Bidder must furnish with his bid the names of the subcontractors he anticipates using and a description of that portion of the contract which each subcontractor is to construct. Failure to do so may be held as cause for rejection of the bid. Prior to award of the contract, the subcontractors must be approved by the Owner and the Engineer. B. In the event that a subcontractor is used for the construction of any portion of the project, failure of the subcontractor to perform any portion of the construction will not alleviate the General Construction Contractor from his obligations to complete the project within the specified completion time. 10.0 BONDS A. A Bid Guaranty shall be submitted by the Vendor with the proposal in accordance with Section 00300, "FORM OF PROPOSAL." 00100-2 B. A Performance Bond in accordance with Section 00410, "PERFORMANCE BOND " shall be provided by the selected bidder prior to execution of the Contract Agreement with the Owner (Section 00400 "FORM OF AGREEMENT BETWEEN VENDOR AND THE CITY OF PEARLAND"). C. A Sequencing Batch Reactor (SBR) Maintenance and Performance Bond in accordance with Section 00620, "SEQUENCING BATCH REACTOR (SBR) EQUIPMENT MAINTENANCE AND PERFORMANCE BOND," shall be submitted by the Vendor prior to execution of the Purchase Order Agreement with the General Construction Contractor (Section 00600, PURCHASE ORDER AGREEMENT). 11.0 ACCEPTANCE/REJECTION OF BIDS A. Bids may be rejected if they show any alteration of words or figures, additions not called for conditional or uncalled for alternate bids, incomplete bids, any alteration of words or figures or erasures not initialed by the person or persons signing the proposal or irregularities of any kind. B. Any bid that has one or more of the deficiencies listed below will be considered to be non -responsive and will not be read publicly. 1. The proposal certification is not signed. 2. Proposal guaranty is not a cashier's check or bank money order on a State or National Bank, or a cashier's check on a State or National Savings & Loan Association payable to the order of the City of Pearland, or a Certified Bid Bond in the amount of 5% of the amount bid. 3. Proposal guaranty is less than the amount prescribed by the proposal. 4. Proposal is submitted by an unqualified bidder. 5. The proposal submitted has too few or too many bid items due to bidder not submitting latest revised version of the proposal. C. Any bid found to be non -responsive for one or more of the above deficiencies, after having been read, will be tabulated as non -responsive. D. Any bid found to be missing a unit price for one or more of the required bid items, after having been read, will be tabulated as incomplete. 12.0 BIDS TO REMAIN OPEN All bids shall remain open for the period of time set forth in paragraph 1.0F in the Invitation for Bids, but Owner may, in his sole discretion, release any bid and return the bid security prior to that date 13.0 PROPOSAL EVALUATION A. The award will be made by the Owner on the basis of the Proposal that, in the Owner's sole and absolute judgement will best serve their interest. B. Equipment cost will not be the only parameter that is used for the evaluation. The lowest cost proposal may not be selected. The evaluation of the proposals by the Engineer will include an evaluation of the items listed below. Life cycle cost and present worth analysis will be based on 20 years at 6% interest with no salvage value. 00100-3 Selection Criteria. 1. Experience. The proposer shall submit a list of all U.S. installations of true batch SBR's including dates of operation, and Owner and Design Engineer's contact telephone number. a. Number, size and location of true batch SBR installations in U.S. 5% b. Number, size and location of municipal systems operating more than 5 years 5% c. Reference check 10% 2. Process. The proposer shall submit a list of engineering support staff members including qualifications (degrees, applicable experience, etc.), a process design to determine peak flow management, and a process performance guarantee a. Engineering and support staff qualifications 10% b. Peak flow management 10% c. Process guarantee 5% 3. Equipment. This item will be based solely on the information submitted in the proposal a. Compliance with pre -purchase documents 10% b. Location of parts and service facilities 5% c. Operational simplicity 5% 4. Cost. This item will be based solely on the information submitted in the proposal. The Engineer will prepare the present worth analysis using the power and O&M data submitted on the Selection Criteria table a. Total equipment costs 15% b. Present worth analysis 20% 5. Total 100% 14.0 PRESENTATION TO STAFF Each qualified and responsive Proposer will be required to make a presentation to the Owner's staff and the Engineer. The presentations will be scheduled within 2 weeks of receipt of the proposals. It is anticipated that the presentations with be 30 minutes in length, followed by a 30-minute question -and -answer period. The presentations will take place at the City of Pearland City Hall, 3519 Liberty Drive, Pearland, Texas. 15.0 AWARD OF CONTRACT A. Owner reserves the right to reject any and all bids and waive any and all formalities, and to disregard all nonconforming or conditional bids or counter proposals. B. In evaluating bids, Owner will consider the qualifications of the Bidders, whether or not the bids comply with the prescribed requirements and alternates in the bid forms. He may conduct such investigations as he deems necessary to establish the responsibility qualifications and financial ability of the bidders to supply the required equipment in accordance with the documents to Owner's satisfaction within the prescribed time as described in Paragraph 2 of Section 00300, ' FORM OF PROPOSAL." He may conduct additional investigations of equipment being offered including experience history, equipment performance, anticipated operations and maintenance costs materials of construction, total cost of constructed facilities for the equipment and any other factors he deems relevant. Owner reserves the right to reject the bid of any bidder who does not meet any such evaluation to the Owner's satisfaction. 00100-4 C. Notice of selection will be issued to the lowest responsible bidder whose evaluation by Owner indicates to the Owner that the award will be in the best interest of the project. D. The successful bidder will be notified by a Notice of Award. Time of completion is very important and failure to meet completion schedule will subject the Vendor to liquidated damages as provided in the Paragraph 5, of Section 00800, "SPECIAL CONDITIONS.' 16.0 SALES TAXES The Owner qualifies as an exempt agency as defined by the statues of the State of Texas. Exemption certificates will be issued through Owner's purchasing department. The Vendor shall comply with all statutes and rulings of the State Comptroller. 17.0 ASSIGNMENT OF EQUIPMENT A. The Owner will evaluate the bids and select the equipment to be furnished. The responsibility for purchasing and installing the selected equipment will then be assigned to the General Construction Contractor at the proposal bid price. The General Construction Contractor shall be responsible for executing a purchase order, scheduling delivery, inspecting, receiving, unloading and protecting the equipment at the project site scheduling manufacturer s service representative as required, installing the equipment, and paying for equipment, all as if he had selected the equipment for the project. B. The General Construction Contractor will be assigned the obligation to make payments directly to the Vendor for the equipment in accordance with the terms of payment as described in Paragraph 12 of Section 00800, 'SPECIAL CONDITIONS' for money received by the General Construction Contractor from the Owner in payment for materials and equipment. 18.0 TERMS OF AGREEMENT Conditions of sale shall be in accordance with the requirements in these documents and not the manufacturer's standard conditions. Any exceptions taken to these requirements may be cause for rejection of the bid. 19.0 BID SUBMITTALS A. Submit the completed Form of Proposal, Section 00300. B. Enclose the Proposal Guaranty. C. Enclose the submittals required by Paragraph 4.A of Section 00800, "SPECIAL CONDITIONS." D. Completed SBR Selection Criteria Form. END OF SECTION 00100-5 City of Pearland SBR - Pre -Purchase Documents SECTION 00300 FORM OF PROPOSAL To: The Honorable Mayor and City Council of the City of Pearland Department of Engineering City Hall 3519 Liberty Dr. Pearland, Texas 77581 5416 Project No.: B2001-025, LAN Project No. 0849-20-008-400 Project: Procurement of Sequencing Batch Reactor (SBR) Equipment (B2001-025) for Far Northwest Environmental Center Bidder: Aqua -Aerobic Systems, Inc. [Print or type full name of individual, partnership, limited liability company or corporation] 1.0 OFFER Having examined the place of the Work and all matters referred to in the Bid documents, and the Contract Documents prepared by or approved by the City Engineer for the named Project, we the undersigned hereby offer to enter into a Contract for Procurement of Sequencing Batch Reactor (SBR) Equipment, complete and ready for installation by the General Construction Contractor, as specified herein for the total lump sum bid price of: Exhibit 1 price $685,288 plus Exhibit 2 Price Adder $27,107 minus Exhibit 2 Price Deduct $1,502 = $710,893.00 Seven hundred ten thousand eight hundred ninety three and No/100 Dollars ($ 710,893.00 [Print or type in words and figures, Bidder's total Bid Price] The undersigned, as bidder, certifies that the only person or parties interested in this proposal as principals are those named herein; that the Vendor has not, either directly or indirectly, entered into any agreement, participated in any collusion, or otherwise taken any action in restraint of free competitive bidding in connection with the contract of the above -captioned project; that he has carefully examined the form of contract, instructions to bidders, and specifications, therein referred to, and has carefully examined the locations, conditions and classes of materials of the proposed work and agrees that he will provide all the necessary machinery, tools, apparatus, and other means of fabrication, and will do all the work and furnish all the materials called for in the contract and specifications in the manner prescribed therein and according to the requirements of the Engineer as therein set forth. Accompanying this proposal is a Guaranty made payable to the City of Pearland for five percent (5%) of the total amount of the bid. Each bid must be accompanied by a bid security (bid bond or certified cashier's check) for the sum of five percent (5%) of the amount of the maximum total bid. Bid securities must be made payable to the City of Pearland. This Proposal Guaranty must be payable at or through the institution issuing the instrument or the guaranty instrument must state that the issuing institution is both the drawer and the drawee of this official obligation to pay the amount stated. "Official Check' and "Officer's Checks" are not acceptable. Checks having multiple labeling of "Official Check" or "Officer's Check" in addition to "Cashier's Check" will not be acceptable. 00300-1 If any addendums have been issued amending this proposal and/or the plans and have been acknowledged, either in writing or verbally to the City of Pearland, then having signed this proposal said addendums become a part of this proposal. This check or bond accompanying this proposal shall be returned to the bidder, unless in case of the acceptance of the proposal the bidder shall fail to meet a specified goal or fail to execute and file a contract with the required insurance certificates within the prescribed time after its acceptance, in which case the check or bond shall become the property of said City of Pearland, and shall be considered as payment for damages due to delay and other inconveniences suffered by said City of Pearland on account of failure of the bidder to execute the contract. It is understood that the City of Pearland reserves the right to reject any and all bids. 2.0 CONTRACT TIME Within fourteen (14) days after receipt of Purchase Order from the General Construction Contractor, the undersigned will execute the Purchase Order Agreement. It is understood that the work is to be completed and dehvered to site within 154 calendar days after the purchase order is executed In the event the Agreement is not executed within the time above set forth, the attached Performance Bond is to become the property of the Owner as liquidated damages for the delay and additional work caused thereby. The Vendor agrees that time is of the utmost importance in the complete delivery of his equipment for the completion of the work, and that for each day of delay beyond the delivery date, the Owner will cause the General Construction Contractor to withhold permanently from the Vendor's total compensation liquidated damages as specified in Paragraph 5 of Section 00800, "SPECIAL CONDITIONS." There will be no exceptions to the required delivery date based on delays in shop drawing approval. All shop drawings will be reviewed within thirty (30) days of receipt by the Engineer. 3.0 EXCEPTION TO SPECIFICATION The undersigned certifies that he has carefully examined these specifications and: Requests Exceptions to the Specifications (See Exhibit 1 and Exhibit 2) Does Not Request Exceptions to the Specifications Statement of Exceptions to Specifications: Attach required data sheets and information requested in equipment specifications and selection criteria. 4.0 ADDENDA Receipt is acknowledged of the following addenda: Addendum No. 1 Addendum No. 2 Addendum No. 3 Addendum No. 4 Addendum No. 5 dated 2/13/01 dated 2/20/01 N /A N /A N /A 00300-2 5.0 SIGNATURES Attested Respectfully submitted, Deborah R. LaVelle, Vice —President, Marketing (Print Name & Title) By: 1 Secretary Aqua —Aerobic Systems, Inc. 6306 N. Alpine Road Address Rockford. IL 61111 (815) 654-2501 Phone (SEAL) If Bidder is a Corporation NOTE: Do not detach bid forms from other papers. Fill in with ink and submit complete with attached papers. END OF SECTION 00300-3 +7132668971 L.A.N. INC. 935 P02 APR 12 '01 12:50 Lockwood, Andrews & Newnam, Inc. A SUBSIDIARY OF LEO A DALY April 10, 2001 Mr Michael Ross, P.E. Project Manager City of Pearland 3519 Liberty Drive Pearland, Texas 77581-5416 • Ref: Far Northwest Environmental Center SBR Pre -Purchase Selection Evaluation Dear Mr. Ross: Lockwood, Andrews and Newnam, Inc. (LAN) has completed its evaluation for the referenced project and is prepared to recommend award of the SBR equipment selection to Aqua -Aerobic Systems, Inc. The scoring and evaluation processes are described below. Criteria Scoring All selection criteria items were scored on a 0 to 10-point basis The eleven (11) selection criteria can be classified as subjective and objective in nature. The objective criteria include those items that have a numerical value on the Selection Criteria Evaluation Form. Ranking or scoring of these items was objective The best value, be it highest or lowest, was given a score of ten (10) points. All other values were then given a score proportional to the best score on the 0 to 10-point basis. As an example, if the best price was $593,200 it was give a score of ten (10) points. A price of $863,050 was the given a score of 10*$598,200/$863,050=6.93. Part of the objective analysis is the evaluation of present worth based on power and O&M cost provided with each proposal Present worth was calculated using a 20-year period and a 6% interest rate. The equipment cost and present worth of each alternative are shown in Table 1. The subjective items were also scored on the 0 to 10-point basis. These scores, however, were based on best available information and engineering judgement. Five of the eleven criteria are subjective in nature. The following is a discussion of the point selection for each item. Reference Check. References were checked from the installation list of each manufacturer. The selection of references were random and were the first three available to answer questions. The selections of references were limited to plants of similar size to the proposed Pearland Far Northwest Environmental Center Because all references for each manufacturer were generally good but not excellent, all proposers were given nine (9) out of ten (10) points. A copy of the telephone conversation for each reference check is attached. 1500 C+tyWost Blvd. • Houston, TeX9.9 77042 • 7131288.8900 FAX 713/266.2009 • APR 12 2001 13:42 +7132668971 PAGE.02 +7132668971 L.A.N. INC. 935 P03 APR 12 '01 12 : 50 Lockwood, Andrews & Newnam, Inc. A SUBSIDIARY OF LEO A DALY Mr. Michael Ross March 9, 2001 Page 2 Process Guarantee. A process guarantee was provided by all proposers ABJ and Aqua - Aerobic provided process guarantees in general agreement with the US pre-purchaseFilter gc documents. They each received a score of ten (10) po ints. Thearantee included an excessive amount of sampling, analysis and reporting for the entire 2-year warranty period. One point was deducted giving US Filter a score of nine (9) points. Compliance with Pre -Purchase Documents. This item is based on the engineer's review of the bid documents and the exception reported by the bidders. The Aqua -Aerobic base bid was essentially without exception and scored ten (10) points. The ABJ Alternate bid consisted of full floor fine bubble aeration that is a non -responsive item and was scored zero (0). The retraining three bids have the exceptions listed below and were give a 0.2 point deduct for each exception. ABJ Base Bid • Motorized decanter not a floating decanter • Fill/decant condition at high flow • No WAS pump hoisting mechanism • No modulating valve • Pratt not DeZurik valves as specified • Valve actuators not as specified Six (6) items total deduct 1.2 points, score 8.8 US Filter • Blower sizing • • Fillldecant condition at high flow • Fiberglass vs. DI or PVC piping and components • Fiberglass vs. stainless steel components • No WAS pump hoisting mechanism • Oxygen transfer test results • Training is 14 days not the specified 15 days Seven (7) items total deduct 1.4 points, score 8.6 C:\TEMP\B idEvalLct.doc noo 10 OGifa 1 1 7 : A7 +7132668971 PAGE.03 +7132668971 L.A.N. INC. 935 PO4 APR 12 '01 12:51 Lockwood, Andrews & Newnam, Inc. A SUBSIDIARY OF LEO A DALY Mr. Michael Ross March 9, 2001 Page 3 Aqua -Aerobic (alternate) • Reduction in the amount of stainless steel components • No WAS pump hoisting mechanism • Install supervision 96 hours vs. the specified 120 hours Three (3) items total deduct 0.6 points, score 9.4 Location of Parts and Service Facility. All proposers provided the location of their local vendor representative, which are all within fifty miles Each proposal was give 5 points Additionally, Aqua -Aerobic has an Aqua -Aerobic employee and factory service engineer located in Corpus Christi, Texas. Aqua was awarded one additional point for this. Operational Simplicity. Each system generally has the same operational features, thus all were initially awarded nine (9) out of ten (10) points The decanter screw stem motor operated drive on the ABJ system requires different programming for flow variations, and offers the possibility of mechanical complications. One (1) additional point was deducted from ABJ for this, giving ABJ a score of eight (8) points. Table 2, Scoring Summary is attached with this recommendation. Selection Evaluation The selection evaluation was accomplished independent of the criteria score. Each criterion, as published in the Instnuetion to Bidders, was assigned a weighting factor. The scores developed above were then weighted using the published factors. A weighted score was determined in this manner for each item of the bid criteria. The sum of these weighted values produced a total score for each bid The Table 3, Selection Evaluation Summary is attached. The order of the evaluations is shown in Table 4. . Table 4 Proposal Ranking Aqua -Aerobic (alternate) US Filter Aqua -Aerobic (base) ABJ (alternate) ABJ (base) 2 3 4 5 cATE�i 1P\BtdEVaUS.doc +7132688971 PAGE.04 +7132669971 L.A.N. INC. 935 P05 APR 12 '01 12:51 Lockwood, Andrews & Newnam, Inc. A SUBSIDIARY OF LEO A DALY Mr. Michael Ross March 9, 2001 Page 4 Recommendation Based on the evaluation process described above and the ranking shown in Table 4, LAN recommends the selection of the Aqua -Aerobic Systems, Inc. alternate bid. We feel that this proposal substantially meets the design intent and that the proposed system will provide an effluent which will meet discharge requirements. Further, we feel that Aqua -Aerobic is a well - qualified manufacturer that produces a superior quality product. If you have any questions or comments, please call me at (713) 821-0410. Sr iinncerely, 4%44- Dennis Keyes, P.E. Project Engineer c: Ty Thomas, LAN Project Manager John Hargrove, City of Pearland Jerry Burns, City of Pearland Gene Simeon, City of Pearland • i DENNIS KEYES `\ O :momm ." C:ITBM P\B IdEvaiLet.doc noo 10 onni 17:dfl +7132668971 PAGE.05 +7132668971 L. A. N. INC. 935 P06 APR 12 '01 12:51 Table 1 City of Pearland SBR Present Worth. Analysis Vendor ABJ Base ABJ Alternate Aqua -Aerobic Base Aqua -Aerobic Alternate USE Capital Cost $863,050.00 $598,200.00 $1,192,700.00 $712,395.00 $647,942.00 Note: Term = 20 years, interest rate = 6% Annual kW-hr • • 1,090,908 597,140 1,129,566 1,129,566 727,080 Annual Power Cost ity $81,818,10 $44,785,50 $84,717.41 $84,717.41 $54,531.00 O&M Cost $27,000.00 $27,000,00 $21,621,24 $21,621.24 $19,041.00 Present Worth l Ranking $2,111,084.79r 6.73 $1,421,507.90 $2,412,298.01 $1,931,993.01 $1,491,739.27 10.00 5.89 7.36 9.53 noo 1, 7fl21 1.7: z1 +7132668971 PAGE.06 +7132669971 L.A.N. INC. 935 P07 APR 12 '01 12:51 W W cn at � R d 0 0 0 O O a 0 88 00 80 0 88 8 0 0 0. 4-4 4 8 5 h 88 88 88 v'0 0 0 88 0 88 ei 0 0 8 Awl 88 .8 T 8 00 a 00 00 0 M 88 11:• 0 v S o • 0 O 8 0 0 8 8 O. 00 0 oe DO 4• 1 8 P oti 8 06 04 t Con 0 O O; 04 v0 2 2 0- 6 .; a 8 8 04 0 8 00 8 8 00 8 00 8 h 0 Dry 0 0 a 'c 0 0 0 0 00 8 8 0 r a 0 0 APR 12 2001 13:44 +7132668971 PAGE.07 +7132668971 L.A.N. INC. 935 P08 APR 12 '01 12:52 M chi • a EIS iyi cd z 2 O 0 O 8 O 0 O O1 O 8 8 O O O 0 O O a O1 0 O O h 0 Nlam" rm4 4 co O h 00 a a a� 0 0 O 0 CO 8 0 0 0 0 O 0. 0 0 0 0 0 vi 0, try cn .o 0 CI 0 in 0 a 0 v O co en o od N O\ 8 O c O O" 0 rn 0 co oo 0 8 0 C 0 AO O 01. 8 Vi 8 O. 0 co 0 4 8 8 1/40 m 8 0 0 0 0 O O 8 O O N O O O J 0 n 0 0 0 a N O O O h M 4. V O 8 O 0 O 00 8 O 00 vth O' N 6 h O O o Yl O VI V1 O N O O a 1 c 6 0 N 8 .2 5 5 C N 6 0 .0 0 0 0 L 0-3 3 4 00 N 2 0 .14 8 0 mo O C 4.1 u L 8 0 m nnn 1 ^f 'fan. 1 1 Z• ii n +7132668971 PAGE.08 +7132668971 L. A. N. INC. 935 P09 APR 12 '01 12:52 Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Project Far Northwest Environmental Center Call From Dennis Keyes Can To Chuck Keyes Date: 3/1/01 Time. 3..05 client City of Pearland • With LAN Phone No. With Monticello, MN, WWTP Phone No. 763-295-2225 Project Number: 0849-20-008-400 Routing Date Coda 1.4 Discussion: The following summarizes our understanding of the conversation. If it differs from yours„ please notify us In writing within five days. ABJ System Reference Check Monticello WWTP 2 mgd ADF, 5 mgd.PF Mr. Keyes said they have been pleased with the operatation and performance of the ABJ SBR system. They operate a three tank true SBR, no continuous flow. The decanter works well even in the extreme cold on Minnesota. They utilize the full floor coverage Sanitaire aeration system. Care must be exercised when the tank is emptied, leaving air on but turning it down as the level drops to keep solids in suspension. They do have a problem with skimmings and feel a method of scum removal should be incorporated into the design. Also, they have problems with filimentous organisms with no RAS to chlorinate. They control filimentous problem by shocking with bleach manually dumped into the basin. General Reference - Good • APR 12 2001 13:44 B.o59-JosM +7132668971 PAGE.09 +7132669971 L. A. N. INC. 935 P10 APR 12 '01 12:52 Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Project Par Northwest Environmental Center Cali From Dennis Keyes Date: 3/1/01 Time. 3..05 Client City of Peartand With LAN Cali To Bert Reteau Phone No. With Moon Township, PA, WWTP Phone No. 412-264-2600 Project Number: 0849-20-008-400 Routing Data Code 1.4 Discussion: The following summarizes our understanding of the conversation. If it differs from yours. please notify us in writing within five days. ABJ System Reference Check Moon Township, PA, WWTP 1.6 mgd ADF, 4.3 mgd PP Mr. Reteau said the system has worked perfectly since 1994. It produces a high quality effluent and is excellent for high flow management. They use a true batch system but can go to the continuous flow mode during high flow conditions. They have had no problems with the decanter Mr. Reteau would recommend the ABJ system General Reference - Good • • APR 12 2001 13:44 B•059.905M +7132668971 PAGE .10 +7132666971 L.A.N. 1NC. 936 P02 APR 12 '01 12:54 Lockwood, Andrews & Newnam7 Inc. • Telephone Conversation Record Date: 3/7/0 • Time: 10:45 AMY Project Number: 0849-20-008-400 Project Center Far Northwest Environmental client City of Pearland Call From Dennis Keyes With Phone LAN No. Call To Mike Swope With Phone Opequon No. 717-892-1092 Hedgeville Routing Data Code 1.4 Discussion: The follow no summarizes our understanding of the conversation. If It differs from youre, please notify us in writIngwithin five days. ABJ System Refernce Check Opequon Hedgeville, WV, WWTP 1.6 mgd ADF, 4.3 mgd PF Mr. Swope returned my call requesting a refemce for the ABJ system. His name was on the ABJ installation list but had not been able to get back to me because he was on vacation. It turns out that he works for a general contractor is not an operator. His comments were that the ABJ system works OK but he is not impressed with the quality. He said right now they are seven months behind on a project generally due to getting approved shop drawings through the engineer. In fact, he said that ABJ had to modify their original design to meet the engineers specifications. He said he has installed 3 ABJ plants. I told him we were conducting an evaluation of SBR's for a proposed plant. Unsolicited he asked if we were including Aqua - Aerobic and said hands down they are the best SBR manufacturer. He described their system as the highest quality, the 'Cadilac" of SBR's. He said he has installed 12 to 15 in his area because Aqua is the system normally specified by engineers. He said they are more expensive but worth it. He also added that Aqua -Aerobics service and support was outstanding. • APR 12 2001 13:46 &OS0. O-SM +7132668971 PAGE. 02 +7132668971 L. A. N. INC. 936 P03 APR 12 '01 12:54 �n Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Date: 3/5/01 Time. 7.30 • Project Number: 0849-20-008-400 Project Far Northwest Environmental, Center Client City of Pearland Call From Dennis Keyes With LAN Phone No. Can To Tim Ebaugh With New Freedom borough Authority Phone No. 717-235-2386 Routing Data Code 1.4 Discussion: The following summarizes our understanding of the conversation. If it differs from yours,please notify us in writing within Live days. Aqua -Aerobic System Reference Check New Freedom Borough Authority, PA, WWTP 2.25 mgd ADF Mr. Ebough's said there have been no problems with the system in the 2 1/2 years he has been at the plant. The decanter works very well, and they do a check on the limit switches every year. Fine bubble aeration system is checked yearly but have not had to replace membranes in the 7 years of operation. They have a 3 tank system and each tank is taken out of service once a year. No solids or scum carry over during decant. Support has been great. Overall very good reference. • • &05990.5M +7132668971 PAGE. 03 • +7132668971 L.A.N. INC. 936 PO4 RPR 12 '01 12:54 Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Date: 3/5/01 Time. 7.30 Project Number: 0849-20-008-400 Project Center Far Northwest Environmental Client City of Pearland Call From Dennis Keyes With Phone LAN No. Call To Sara Ward With City of Phone No. 850-547-2701 Bonifay, FL Routing Data Coda 1..4 Discussion: The following summarizes our understanding of the conversation. If It differs from yours, please notify us In writing within five days. Aqua -Aerobic System Reference Check City of Bonifay, FL WWTP, 1.4 mgd ADF Ms Ward is very happy with the system. There have been no problems with the system since start up in 1990. The decanter works fine. There is no solids carry over and no problem with the mechanical actuator. The Aqua support has been excellent. Aeration system is good. Overall reference is good too. • .•..'r. .., ',nnn e'• Ar 9.056.60•5M +7132660971 PAGE.04 +7132668971 L.R.N. INC. 936 P05 APR 12 '01 12:54 Lockwood Andrews & Newnam Inc. • Telephone Conversation Record Date: 3/6/01 Time. 2.10 Project Number: 0849-20-008-400 Project Far Center Northwest Environmental client City of Pearland Call From Dennis Keyes With Phone LAN No. Call To Steve Nickolson With Clear Phone No. Lake 641-357-2019 WWTP Routing Data Code 1.4 Discussion: The following summarizes our understanding of the conversation, If it differs from yours, please notify us in writing within five days. Aqua -Aerobic System Reference Check Clear Lake, Iowa WWTP 5.7 mgd ADF Mr Nickolson said the plant has operated perfectly after start-up. The were some minor start-up problems, but Aqua worked with the operator to get things working correctly. The,y have a four tank system, two tanks installed in 1996 and two more three years ago. The decanter works well, and there is no solids carry over. Last sampling shows )3OD=2.5 and TSS=2.9. Aeration system works great (standard system like the alternate they bid), He particularly likes the retrievable system. No problems with the galvanized components. Very simple to operate. The support from Aqua has been good. Overall all rate very good. • APR 12 2001 13:47 8-056.30SM +7132668971 PAGE.05 +7132668971 L.A.N. INC. 936 P06 APR 12 '01 12:55 Ian Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record • Date: 3/2/01 •Time. 3.30 Project Number: 0849-20-008-400 Project Center Far Northwest Environmental client City of Pearla.nd Call From Dennis Keyes with Phone LAN No. Cell To Glenn Brentnell with Phone Bluff No. 405-341-4260 Creek , OK, WWTP Routing Date Code 1.4 Discussion: The following summarizes our understanding of the conversation, If it differs from yours, please notify us In writing within five days. USF System Reference Check Bluff Creek, OK WWTP 3.75 mgd ADF, 5.63 mgd PF Mr. Brentnell considers the US Filter SBR a good system. They have a four tank system that uses jet aeration. The decanter is generally good but they do get some solids at the beginning of the decant cycle. He suspects the decanter valves of leaking during aeration or being stuck open by plastic The solids clear up quickly after decanting starts. Flow management is OK but they have a problem with the system going prematurely into the fill/decant mode. During high flow, they manually adjust cycles to keep the plant from going into a filUdecant mode. Support from US Pilter is good. The plant blowers were initially undersized and had to be replaced. He likes the system and the process. He can operate the plant with MLSS levels from 2800 mg/1 to 4000 mg/1. • • ',inn 4n 'irl.ni 1i•,1ri 9.059-0.5M +7132668971 PAGE.06 +7132668971 L.A.N. INC. 936 P0? APR 12 '01 12:55 Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Date: 3/2/01 Time. 3.50 Project Number: 0849-20-008-400 Project Center Far Northwest Environmental Client City of Pearland Cali From Dennis Keyes With Phone LAN No, call To James Fraichild With Phone Monterey No. 904-721-4641 WWTP FL, Routing Data Code 1.4 Discussion: The following eummarlzes our understanding of the conversation. If it differs from yours, please notify us In writing within five days. USF System Reference Check Monterey FL WWTP 3.58 mgd ADF, 7.08 PF Mr. Frairchild said the plant generally works well and produces a good effluent They have a 4 basin system with one of the basins operating as the digester. They use Jet aeration. The decanter works well but two of the knee braces have broken and had to be replaced. The only problem they have is from the large temperature changefrom day to night in the winter, Peak flow management is satisfactory but they have to manually change the cycle time to keep the system from going into a fill/decant situation. They try to avoid fill/decant except for prolonged wet weather flow periods. • • APR 12 2001 13:47 e-oea•aosM +7132668971 PAGE.07 +7132668971 L. A. N. INC. • 936 Pa8 APR 12 '01 12:55 tan Lockwood, Andrews & Newnam, Inc. Telephone Conversation Record Date: 3/1/01 Time. 3:50 Project Number: 0849-20-008-400 Project Center Far Northwest Environmental Client City of Pearland Call From Dennis Keyes With Phone LAN No. Call To Grant Weaver With Water Phone No. 860-889-4553 Plant Company Routing Data Code 1.4 Discussion: The following summarizes our understanding of the conversation. If It differs from yours, please notify us In writing within five days. USF System Reference Check East Haddam, CT, WWTP .05 mgd ADF, .25 mgd PF • Mr. Weaver is a private operator of a small system. They have had good performance from the SBR. They use course bubble aeration and the floating decanter, One complaint is the propriatory nature of the controls system and the control software. Everything must go through US Filter/Jetech when dealing with controls. He has experienced an occassional wash out of solids. He has gotten high solids in the effluent from the decanter valves catching or sticking open. He is generally satisfied with the support, except for the controls issue. Generally good performance from the system Another contact name is Todd Mathison 806-873-2460. • APR 12 2001 13:47 B-oseao'6M +7132668971 PAGE. 08 +7132668971 L.P.N. INC. 936 P09 APR 12 '01 12:56 Lockwood, Andrews & Newnam, Inc. • A SUBSIDIARY OF LEO A DALY April 10, 2001 Mr. Alan Mueller Interim City Manager City of Pearland 3519 Liberty Drive Pearland, Texas 77581-5416 Reference: Far Northwest Environmental Center SBI2 Pre -Purchase Recommendation Bid No. B2001-025 LAN Project No. 0849-20-008-400 Dear Mr. Mueller: Lockwood, Andrews and Newnam, Inc. (LAN) has completed its evaluation for the referenced project and is prepared to recommend award of the SBR equipment. Our recommendation is based on the evaluation process described in our revised letter to Mr. Michael Ross, P.E. dated April 10, 2001. Bids were received on Friday, February 23, 2001 and were opened after 2:00 PM. A bid tabulation is attached to this letter. Five proposals were received from three manufacturers. Two of the manufacturers submitted both a base bid and an alternate bid The three manufacturers submitting bids were: Base Bid Only U.S. Filter/Jet-Tech 1051 Blake Edwardsville, Kansas 66113 Base and Alternate Bids Sanitaire/ABJ 9333 N 49th Street Brown Deer, Wisconsin 53223 Aqua -Aerobic Systems 6306 North Alpine Road Rockford, Illinois 61130 The attached bid tabulation includes the following items. • • The Proposal Price — The bid price found on the bid form subject to the exceptions in the proposal documents. Additions/Deductions — Prices offered by the bidders to bring the proposals into close but not complete compliance with the specifications. The other exceptions resulted in point deductions explained in the referenced evaluation letter. These include U S Filter requiring $14,500 to provide an additional 120 hours of specified training, Aqua -Aerobic Systems requiring $27,102 on their alternate bid to provide the minimum amount of stainless steel 1500 CltyWcst 8 vd. • Houston. Texas 77042 • 719/208•8900 • FAX 71 d=ee•2009 APR 1 ? 2(71211 1 7: d +7132668971 PAGE. 09 +7132668971 L.A.N. INC. 936 P10 APR 12 '01 12:56 isn Lockwood, Andrews & Newnam, Inc. A SUBSIDIARY OF LEO A DALY Mr. Alan Mueller April 2, 2001 Page 2 • hardware requested and Aqua -Aerobic Systems offering a $1,502 deduct to reduce the number of blowers from five to the specified three. • Total Evaluated Price — The final price used in the bid evaluation and proposal ranking. • Bid Submittals — Documentation required to be submitted with the bid. The Aqua -Aerobic bid received the number one ranking with a score of 8.72 out of 10 points for their alternate bid. A summary of the ranking and the scores of each proposal is shown below LAN recommends the selection of the Aqua -Aerobic Systems, Inc alternate bid at $712,395.00 based on a combination of price, compliance with the specifications and the other selection criteria. Proposal Ranking and Score A.ua-Aerobic base ABJ (alternate) In summary, LAN feels that the Aqua -Aerobic alternate is the best overall value for the City of Pearland. We feel that this proposal substantially meets the design intent and that the proposed system will provide an effluent which will meet discharge requirenients. Further we feel that Aqua -Aerobics is a well -qualified manufacturer that produces a superior quality product. If you have any questions or comments, please call me at (713) 821-0410. Sincerely, Thtts- 4ea-1 Dennis Keyes, Pt. Project Engineer c: E. Tyson Thomas, LAN Project Manager John Hargrove, City of Pearland Jerry Burns, City of Pearland Gene Simeon, City of Pearland C:V EMP\SBR•Recomd-Rev 1.doc oisalar• OF 1Wpii o'• /•—• 1 � 1• DENNIS KEYES 1I'Op' 71743 : w�,: 6. L`` (5/Sa `G��r APR 12 2001 13:48 +7132669971 PAGE.10 +7132668971 L. A. N. INC. 936 P11 APR 12 '01 12:56 Items Proposal Price Adders/Deducts Equivalent Training Required Stainless Steel FAR NORTHWEST ENVIRONMENTAL CENTER OR EQUIPMENT PRE -PURCHASE Deduct for 3 blowers vs 5 in bid Total Evaluated Price Bid Submittals Proposal Forrn Proposal Guaranty Items required in Section 00800 Selection Criteria Form U.S. Filter Base BID TABULATIONS Base $633,442.00 $863,050.00 $14,500.00 N.A. N.A. $647,942.00 Yes Yes Yes Yes • N.A. N.A. $863,050.00 Yes Yes Yes Yes ABJ Alternative $598,200 00 N.A. N.A. $598,200.00 Yes Yes Yes Yes Aqua Aerobic Base Alternative $1,192,700.00 N.A. N.A. N.A. $1,192,700.00 Yes Yes Yes Yes MMENE- S685,288.00 N.A. $27,107,00 -$1,502,00 $712,395.00 Yes Yes Yes Yes APR 12 2001 13'48 +7132668971 PAGE. 11 City of Pearland SBR - Pre -Purchase Documents SECTION 00620 SEQUENCING BATCH REACTOR (SBR) EQUIPMENT MAINTENANCE AND PERFORMANCE BOND PART1-GENERAL Provide the following bonded process performance guarantee for equipment furnished as specified in Exhibits 1 and 2. 1.1 PROCESS PERFORMANCE BOND The equipment supplier of the sequencing batch reactors (SBR) shall execute a process performance bond for the amount of 100% of the bid price payable to the Owner to guarantee that the equipment shall meet the acceptance test and perform in accordance with requirements specified herein during the first two (2) years of service. The performance bond shall be issued by a corporation which is fully authorized to transact surety business in the State of Texas. 1.2 PROCESS PERFORMANCE WARRANTY A. The Vendor, as the SBR system equipment supplier, guarantees the performance of the SBR system. B. The SBR system shall produce a monthly average effluent at or below the levels specified in Article 1.5 of Section 11100, Sequencing Batch Reactor (SBR) Equipment C. This performance is warranted provided that: 1. The influent wastewater to the system prior to screening has the general characteristics stated in Article 1.5 of Section 11100, Sequencing Batch Reactor (SBR) Equipment. 2. The SBR system is incorporated into a treatment scheme which includes screening, tertiary filter and ultraviolet disinfection. 3. Average effluent pollutant values shall be evaluated on an arithmetic mean basis. Sampling shall be in accordance with current State of Texas procedures, as determined by the appropriate regulatory agency. All analyses performed shall be in accordance with the current issue of the Manual of Methods for Chemical Analysis of Water and Wastes as established by the US EPA Manual 625/6-74-003 4. Operator training will be conducted by the Vendor in accordance with the training requirements specified under 01655, Starting Systems and Section 01661, Instructions of Operations and Maintenance Personnel. 5. Within six (6) months of the Engineer's certification of substantial completion of construction, performance tests shall be conducted as soon as practical once the system has achieved steady-state operating conditions. The test period shall be thirty (30) days in length and the system operation shall be in strict compliance with operating instructions provided in writing by the Vendor. 6. The Owner agrees to cooperate with the Vendor during the test period by providing necessary operations personnel, sampling and analysis required for the test at no cost to the Vendor. If the test is interrupted due to conditions beyond the control of the Vendor, the test will be restarted without loss of previously completed test days. 00620-1 7. If the SBR system is unable to attain the required effluent quality during the thirty (30) day testing period the Vendor shall supply additional technical assistance, at no cost to the Owner, to make a determination of any modifications which it considers necessary to improve performance. If the Vendor determines that modifications in SBR system operation strategies are necessary, such modifications shall be made by the Vendor and the thirty (30) day test described above shall be repeated. 8. In the event that the required effluent quality is still not achieved, the Owner, in cooperation with the Engineer will conduct a laboratory -scale treatability study to identify the cause(or causes) of such failure. 9. If the standard laboratory test does not indicate that inhibitory substances are present, then the thirty (30) day test described above shall be repeated. If, by completion of this test, the manufacturer is unable to make the necessary corrections, modifications or changes to the equipment in order to meet the process requirements, the manufacturer or its surety shall modify, supplement or replace equipment by delivering same to the jobsite and supervising installation at no charge to the Owner, not to exceed the value of the Process Performance Bond. 10. After completion and compliance with the accepted test, the performance bond will continue in effect for two (2) years of service In the event that the SBR systems' average effluent exceeds the specified values for any month, the Owner will notify the Vendor and illicit their assistance in troubleshooting the problem. If the SBR's average effluent exceeds the specified value on the next consecutive month, the equipment supplier will be allowed to perform an acceptance test as specified for in the initial acceptance test. If at the completion of the test the performance meets the specified process requirements then the Owner shall pay for the trip in accordance with the Manufacturer's standard service policy. 11. If the performance does not meet the specified process requirements, and the manufacture is unable to make the necessary corrections, modifications, or changes to the equipment in order to meet the process requirements, the manufacturer or its surety shall be responsible for all costs necessary to rectify the system in order to meet the Process Performance requirements, limited to the value of the Process Performance Bond 12. The wastewater does not contain any biologically toxic substances or other physical -chemical characteristics conducive to depressed treatment or settleability. 13. The oxygen uptake rate in the reactor does not exceed the sum of 2.2 lbs. of oxygen per pound of BOD5 removed for both carbonaceous removal and Nitrification; and the waste exhibits an Alpha factor of not less than 0.45 and a Beta factor of not less than 0.95. 14. The waste is amenable to biological reduction to the extent guaranteed. 15. Daily Maximum, 7-Day Average of Single Grab samples will not be used as a measure to establish conformance to the performance requirements. 16. The equipment is installed, operated and maintained in accordance with instructions provided by Aqua -Aerobic Systems in the Operation and Maintenance Manual. 17. The equipment has been paid for in full in accordance with the terms of the contract. 18. In the event the effluent quality exceeds the guaranteed limits Aqua -Aerobic Systems reserves the right to 1) request available operating data and 2) request additional testing necessary to assess the system performance. 19. Start-up shall be defined by the date stated on Aqua -Aerobic Systems' "Manufacturer's Certificate of Inspection" form executed upon completion of start-up services. 00620-2 20 Coordination of the testing shall be established by the General Installation Contractor who shall define the start and end dates for testing. The General Installation Contractor shall give a minimum of three weeks advance notice to the Manufacturer, Owner, and Engineer prior to the start of the acceptance test. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. AQUA -AEROBIC SYSTEMS, INC. Company Name Name Title Execution Date NOTE: Aqua -Aerobic Systems Inc. will execute the Process Performance Bond and Process Performance Guarantee following: receipt of PO from the General Installation Contractor with acceptable terms and conditions, approved engineer's submittal data, and notification of completion of acceptance tests per this Specification Section 00620. END OF SECTION 00620-3 City of Pearland SBR - Pre -Purchase Documents SECTION 00800 SPECIAL CONDITIONS 1. PERFORMANCE A. The work to be performed consists of the furnishing of all materials, machinery, equipment, superintendence and labor and performing all work necessary for designing, manufacturing furnishing and delivering the equipment specified to the project site and providing services during installation, testing and start-up, including all applicable taxes, overhead, and profit B. It is not the intention of the Owner to enter into a direct contract with the Vendor for purchase of equipment, but rather to evaluate and select the equipment from the bids received. A purchase order will be issued by the General Construction Contractor for the equipment in accordance with the bid. C. In the contract between the Owner and the General Construction Contractor, it has been stipulated that the General Construction Contractor will issue a purchase order to the selected Vendor, and install and make payment for the equipment selected by the Owner. 2. DEFINITION OF TERMS A. City. Whenever the word "City" is used in the specifications and contract documents, it shall be understood as referring to the City of Pearland, Texas, a legal subdivision of the State of Texas. B. Owner. Whenever the word "Owner' is used in the specifications and the contract documents, it shall be understood as referring to the City of Pearland. C. Engineer. Whenever the word "Engineer" is used in the specifications and contract documents, it shall be understood as referring to Lockwood, Andrews & Newnam, Inc., 1500 CityWest Blvd., Houston, Texas 77042 Houston, Texas 77042, Engineer of the Owner, or such other engineer, supervisor or representative as may be authorized by said Owner to act in any particular responsibility. D. Vendor. Whenever the word "Vendor" or "Equipment Manufacturer" is used in the specifications and contract documents, it shall be understood as referring to the successful equipment supplier for this project, his legal representative or his agent, signing this proposal. E. General Contractor. Whenever the word "General Contractor," "Contractor,' "Construction Contractor," or 'Installation Contractor" is used in the specifications and contract documents, it shall be understood as referring to the General Construction Contractor who will install the equipment specified herein. 3. INTERPRETATION OF PHRASES A. Whenever the words "Directed," "Required," "Permitted," "Designated," "Considered Necessary," "Prescribed," or words of like import are used in the specifications, it shall be understood that they are intended as a prerogative of the Engineer; and similarly, the words "Approval," "Acceptable," ' Satisfactory,' or words of like import, shall mean approval, etc., by the Owner. B. Wherever, in these specifications for the work, the terms or descriptions of various qualities relative to finish, workmanship and/or other qualities of similar kind cannot, because of their nature, be specifically and briefly described in general terms, the Engineer shall be the final judge as to whether or not the workmanship as described 00800-1 is being performed in accordance with the intent of the plans and specifications, therefor, and the work shall be completed in accordance with his interpretation of the meaning of such words, terms or clauses. 4. SUBMITTALS A. Submit with Proposal. 1. Technical Data. a. Include technical data and the layout of the system with dimensions. Provide suggested arrangement of equipment in the system, including, but not limited to flow control devices i.e. valves, piping and gates; pumps, blowers, diffuser wastewater transfer efficiency, air and sludge piping, decanters, materials of construction and flow rates. These items should be clearly identified. b. Vendor shall indicate the component manufacturers, type, size, make and material of all equipment to be supplied. c. The successful bidder shall provide within 4 weeks of signing the agreement with the Owner the necessary drawings for the Engineering Detail Design. These drawings shall be provided in Microstation. d. Provide projected operation and maintenance costs. The breakdown of operations costs should include projected power consumption for individual components of the system. Provide all unit costs used in determining the operations cost associated with the equipment. e. The proposal shall demonstrate that the system will meet all requirements of this specification. f. Include detailed information on all equipment to be used in the batch reactors. g. Provide a list of set points used with the SBR control system. These points shall be provided for design average flow rate through and including 2-hour peak flow rate. h. Provide decant discharge valve modulation setting to gradually deliver decant water to the filter. 2. List of Installation and References. Submit a list of at least ten (10) similar U.S. installations with references and contact information that have been in operation for at least five (5) years. 3. Selection Criteria. Complete and submit the SBR manufacturer selection criteria provided with these contract documents and specifications. B. Submittals after Purchase Order from General Construction Contractor. 1. Shop Drawings. a. The Vendor whose equipment is selected by the City shall submit seven (7) complete shop drawings for the equipment and materials to be furnished to the General Construction Contractor for subsequent submittal to the Engineer for review in accordance with Paragraph 5, DELIVERY SCHEDULE. 00800-2 b. Shop drawings shall include: 1) Engineering data and other information necessary to allow a complete evaluation of products, including dimensions, size, weights, gauges, materials of construction, external connections, anchors, and supports required 2) All applicable standards such as ASTM or Federal Specification numbers. 3) Fabrication and installation drawings, setting diagrams special installation techniques, manufacturing instructions, templates, patterns and coordination drawings 4) Vendor shall submit any and all deviation from the specifications as ' General Construction Contractor's Modification Request" through the General Construction Contractor and indicate reason for deviation. Deviations not submitted as a 'General Construction Contractor's Modification Request" and approved by Change Order or Field Order may be cause for rejection of equipment at any time. 5) Other data as required in the technical specifications. 6) All required performance statements or certificates, guarantees, extended service agreements, and other related documents are to be provided with the shop drawings. The effective date of these documents shall be the date of acceptance of the work by the Owner. 7) Instructions may assume competent but not necessarily expert installers. c. When a drawing is satisfactory to the Engineer or only requires minor corrections, three (3) copies will be stamped or marked 'Furnish as Submitted" or "Furnish as Corrected," dated, and the copies thereof will be returned to the General Construction Contractor. The Engineer will retain other copies for use by the Owner and Engineer. d. Should a drawing be unsatisfactory to the Engineer, he will stamp the submittal "Revise and Resubmit' and will return one or more copies thereof to the General Construction Contractor with the necessary corrections and changes indicated. The Vendor shall correct or change the drawings as required by the Engineer and again submit for approval The Vendor shall revise and resubmit the working drawings as required by the Engineer until approval thereof is obtained. e. Approval by the Engineer indicates general compliance or acceptability; however, it does not relieve the equipment manufacturer of final responsibility for proper dimensions, character, quantity, quality, strength, or sufficiency of the items involved and suitability of equipment for the intended purpose. Waivers or exceptions to the plans and specifications may be validated only in writing by the Owner which specifically identifies the feature and no such waiver or exception shall be allowed as a result of omissions or oversights in examining and approving the above drawings or other material. 2. Requirement of individual specification sections. 5. DELIVERY SCHEDULE Shop drawings shall be submitted to the Engineer by the General Construction Contractor within 50 calendar days after the Notice to Proceed The Vendor shall provide the General Construction Contractor the required submittals with sufficient time to meet this deadline. Time to deliver the equipment is set forth in Paragraph 2 of Section 00300 ' FORM OF PROPOSAL.' For each day in which the equipment is not delivered to the job site in accordance with the proposed schedule, the Vendor shall pay the General Construction Contractor $400 per day in order to reimburse the General Construction Contractor for delays. 00800-3 6. EQUIPMENT INSTALLATION REPORTS (EIR) Submit a report that certifies that the equipment has been properly installed and lubricated is in accurate alignment, is free from any undue stress imposed by connecting appurtenances, that it has been operated under full load conditions and that it is operating satisfactorily. 7. OPERATION AND MAINTENANCE MANUALS A. Prior to delivery of the equipment, the Vendor shall furnish to the General Construction Contractor four (4) copies of manuals giving installation, testing and operation instructions, maintenance procedures, parts list and other pertinent information as required by Section 01730 "OPERATION AND MAINTENANCE DATA." B. Submit O&M manuals for each equipment contract unless otherwise approved by the Engineer. Two copies of O&M manuals shall be submitted to Engineer for approval prior to start-up. After approval, 10 copies shall be provided to Engineer 8. PATENTED DEVICES If bidders hereunder are required or desire to use any design, device, material or process covered by letters, patent, or copyright, they shall provide for such use by suitable legal agreement with the patentee or Owner and the prices hereunder shall, without exception, include any and all royalties or costs arising from such use. The bidder shall indemnify and save the Owner harmless from any and all claims for infringement by reason of the use of any such patented design, device, material, or process, or any trademark or copyright used in connection with any equipment to be furnished hereunder. 9. EQUIPMENT WARRANTY A. A maintenance and performance bond is required in Section 00620. The Vendor shall also warrant by providing the Affidavit of Guarantee that all equipment furnished hereunder is of first class material and workmanship, complies in all respects with the design and specifications of these documents, and contains no defect of material or workmanship. In the event of failure of any part or parts of the equipment during the first year of service, provided that the equipment has been operated in accordance with its intended use, the affected part or parts shall be replaced promptly upon notice by the Owner through the General Construction Contractor. Replacement, under this item, of defective parts with new parts shall be performed at no cost to the General Construction Contractor for parts or shipping. Cost for labor and installation shall also be borne by the Vendor. B. The first year of service shall be interpreted as the twelve-month period following Substantial Completion (the start of actual operating use of the equipment exclusive of the time for installation, testing, adjusting, etc.) during the construction period and prior to final acceptance of the project by the Owner from the General Construction Contractor. 10. ACCEPTANCE The City reserves the right to operate the equipment, after installation, for a period of sixty (60) days before final acceptance. During such period, the equipment Vendor or his representative, shall make such adjustments as may be deemed necessary to improve the operating performance of the equipment. 11. ASSIGNMENT A. The General Construction Contractor will be assigned the responsibility of executing a purchase order with the Vendor, receiving, inspecting, unloading, storing equipment per the Vendor's instructions, assembling and installing the equipment. 00800-4 B. The General Construction Contractor will also be assigned the obligation to make payments directly to the Vendor foi the equipment, in accordance with the terms of his contract with the City, and the terms of payment as described herein. C. The General Construction Contractor will be required to work with the Vendor in scheduling delivery of equipment and dates the manufacturer's representatives shall be available to assist in assembling installing, adjusting, and start-up of the equipment, and making any corrections necessary to the equipment. 12. PAYMENT A. After delivery of all of the specified equipment, manuals and materials to the job -site in good condition, the City will make payment to the General Construction Contractor on the following monthly estimate for the delivered equipment, as materials on hand, equal to eighty percent (80%) of the proposal amount therefor, less any charges for late delivery of materials and equipment. Payment of the remaining twenty percent (20%), less any late delivery charges of the proposal amount will be due and payable to the General Construction Contractor after the equipment is installed and is operating satisfactorily B. The General Construction Contractor will be required to certify that all payments authorized by the Owner, as specified above, have been made to the Vendor prior to approval of subsequent monthly estimates 13. AFFIDAVIT OF BILLS PAID Provide the Affidavit of Bills Paid. END OF SECTION 00800-5 AFFIDAVIT OF GUARANTEE STATE OF TEXAS § COUNTY OF BRAZORIA § Before me, a Notary Public in and for the State of Texas, on this day personally appeared of , well known to me to be the person making affidavit, who, being by me first duly sworn and deposed did say: I am of and have personal knowledge of the matter stated in this affidavit. Vendor does hereby give notice to the Owner, City of Pearland, that work for the Owner, known as Procurement of Sequencing Batch Reactor (SBR) Equipment (B2001-025) for the Far Northwest Environmental Center has been substantially completed. does hereby guarantee all of the work under the contract to be of first class material and workmanship, free from faulty materials in every particular, and against injury from proper and usual wear; and agrees to replace or re -execute without cost to the Owner such work as may be found to be improper or imperfect, and to make good all damage caused to other work or materials due to such required replacement or re -completion of all work under this contract, as evidenced by the Engineer's Certificate of Substantial Completion. This affidavit is made in connection with the final payment under the contract between City of Pearland and . And with the knowledge that it will be relied upon in making such payment and that such payment would not be made except upon the truth of the matter contained in this affidavit. DATE: STATE OF TEXAS § COUNTY OF BRAZORIA § (Name and Title) BEFORE ME, the undersigned, a Notary Public, in and for the State of Texas, on this day personally appeared , known to me to be the person whose name subscribed to the foregoing instrument, and acknowledged to me that he/she executed the same for the purpose and consideration therein expressed. GIVEN UNDER MY HAND AND SEAL OF OFFICE, this day of , A.D., 20 . Notary Public Signature 00810-1 AFFIDAVIT OF BILLS PAID STATE OF TEXAS § COUNTY OF BRAZORIA § Before me, a Notary Public in and for the State of Texas, on this day personally appeared , of , well known to me to be the person making affidavit, who, being by me first duly sworn and deposed did say: I am of and have personal knowledge of the matter stated in this affidavit. has paid all of the labor and material costs in connection with the Furnishing of Sequencing Batch Reactor (SBR) Equipment (B2001-025) for the City of Pearland Far Northwest Environmental Center, and as of this date, there are no unpaid tills for labor performed upon, or materials or supplies delivered to or used in connection with such. This affidavit is made in connection with the final payment under the contract between City of Pearland and . And with the knowledge that it will be relied upon in making such payment and that such payment would not be made except upon the truth of the matter contained in this affidavit. DATE: STATE OF TEXAS § COUNTY OF BRAZORIA § (Name and Title) BEFORE ME, the undersigned, a Notary Public, in and for the State of Texas, on this day personally appeared , known to me to be the person whose name subscribed to the foregoing instrument, and acknowledged to me that he/she executed the same for the purpose and consideration therein expressed. GIVEN UNDER MY HAND AND SEAL OF OFFICE, this day of , A.D., 20 . Notary Public Signature 00820-1 City of Pearland SBR - Pre -Purchase Documents SECTION 01330 SUBMITTALS PART1-GENERAL 1.1 SUBMITTAL PROCEDURE A. Include all submittals related to this bid with the proposal package. B. Identify variations from contract documents and product or system limitations which may be detrimental to successful performance of the completed work. 1.2 SUBMITTALS PRIOR TO BEGINNING WORK Submit two copies of the following items with the signed contract as a prerequisite to starting the work. The location of information concerning each submittal is referenced. A. Performance Bond. Bidding Documents, Instructions to Bidders. B. Bid Guaranty. Bidding Documents, Instructions to Bidders. C. List of Subcontractors. Instructions to Bidders. D. Sequencing Batch Reactor (SBR) Equipment Maintenance and Performance Bond. Section 00620. 1.3 SUBMITTALS WITH PROPOSAL The following items shall be submitted with the proposal: A. Technical Data. 1. Include technical data and the layout of the system with dimensions. Provide suggested arrangement of equipment in the system, including, but not limited to flow control devices, i e valves, piping and gates; pumps, diffuser wastewater transfer efficiency, air and sludge piping, decanters, materials of construction and flow rates. These items should be clearly identified. 2. System design parameters and calculations. 3. Vendor shall indicate the type, size, make and material of all equipment to be supplied. 4. The proposal shall demonstrate that the system will meet all requirements of this specification. 5. Include a list of equipment and materials to be furnished, detailed information on all equipment to be used in the batch reactors and any special installation instructions. 6. Provide a list of set points used with the SBR control system for average daily flow and 2-hour peak flow. 7. Certified test reports to justify oxygen transfer efficiencies used in the system design. 01330-1 8. The successful bidder shall provide, within 4 weeks of signing the agreement with the Owner, the necessary drawings for the Engineering Detail Design. These drawings shall be provided in Microstation. 9. Provide projected operation and maintenance costs. The breakdown of operations costs should include projected power consumption for individual components of the system. Provide all unit costs used in determining the operations cost associated with the equipment. 10. Furnish all working drawings, including arrangement and erection drawings of the equipment and controls, schematic control diagram, and electrical connection diagrams. 11. Furnish complete description of control system and equipment operation. Assume the SBR is fed from a lift station through a headwork utilizing only mechanical fine (1/4 inch) screens and is followed by an automatic backwash sand filter. B. List of Installation and References Submit a list of at least 10 similar U.S. installations with references and contact information that have been in operation for at least 5 years. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. END OF SECTION 01330-2 City of Pearland SBR - Pre -Purchase Documents SECTION 01340 SHOP DRAWINGS, PRODUCT DATA AND SAMPLES PART1-GENERAL 1.1 SECTION INCLUDES Methods, schedule, and process to be followed for shop drawings, product data and sample submittals. 1.2 REQUIREMENT A. Submit shop drawings, product data and samples as required by the Special Conditions and as designated in the Specifications using the procedures specified in Section 01330 - Submittals and the requirements of this Section. The Engineer will review submittals and may add additional products, materials and equipment to the list. The Vendor shall incorporate revisions and resubmit. B. Shop drawings, product data and samples are not considered Contract Documents. 1.3 SHOP DRAWINGS A. Allow 30 regular working days (weekends and holidays excluded) for submittal review. B. Submit seven sets of shop drawings as required by the contract documents in a form and quality suitable for microfilming. C. All shop drawings and submittal data shall be in the English language, and all dimensions, weights, capacities and other measurements shall be expressed in the standard English system of measurements. D. Submit shop drawings for review as required by the Specifications. Have shop drawings reviewed and signed by a registered professional engineer. E. On the drawings, show accurately and distinctly, the following: 1. Field and erection dimensions clearly identified as such. 2. Arrangement and section views. 3. Relation to adjacent materials or structure, including complete information for making connections between work under this Contract and work under other contracts. 4. Kinds of materials and finishes. 5. Parts list and descriptions. 6. Assembly drawings of equipment components and accessories showing their respective positions and relationships to the complete equipment package. F. Make drawings to scale providing a true representation of the specific equipment or item to be furnished. 01340 1 1.4 PRODUCT DATA A. Submit product data for review as required in Specification sections. B. Mark each copy to identify applicable products, models, options to be used in this Project. Supplement manufacturers' standard data to provide information unique to this Pioject where required by the Specifications C. For products specified only by reference standard, give manufacturers, trade name, model or catalog designation and applicable reference standard. D For manufacturer's catalog sheets, brochures, diagrams, schedules, performance charts, illustrations and other descriptive data: 1. Clearly mark each copy to identify materials, products or models which are being submitted for review. 2. Show dimensions and clearances required. 3. Show performance characteristics and capacities. 4. Show wiring diagrams and controls. E. Submit seven sets of product data unless otherwise specified in the General Requirements. 1.5 SUBMISSION REQUIREMENTS A. Accompany each submittal with a dated transmittal letter which includes: 1. Date and submittal number. Number submittals sequentially beginning with "001". 2. Project title and number. 3. The names of: a. Manufacturer. b. Subcontractor. c. Supplier. 4. Identification of product or material. 5. Relation to adjacent structure or materials. 6. Specification section number and/or drawing number. 7. Applicable standards, such as ASTM number or Federal Specification. 8. Identification of deviations from the contract documents shall be clouded on submitted drawings and itemized and detailed on a separate sheet titled "Deviations for .' If no deviations exist, this sheet must state so. 01340-2 B. All shop drawings and product data shall contain: 1. Field dimensions clearly identified as such. 2. A blank space on each shop drawings, approximately 5" x 5", for an ink stamp of the Engineer. C. Submittals will be identified as the Engineer requires. D. Insofar as practical, make all submittals for each of the following categories at one time. 1. Structural. 2. Mechanical. E. Before submission of each Shop Drawing, Vendor shall have determined and verified all quantities, dimensions, specified performance criteria, installation requirements, materials, catalog numbers and similar data with respect thereto and reviewed or coordinated each Shop Drawing with other Shop Drawings and samples and with the requirements of the Work and the Contract Documents. F. At the time of each submission, Vendor shall give Engineer specific written notice of each variation that the Shop Drawings or samples may have from the requirements of the Contract Documents, and, in addition, shall cause a specific notation to be made on each Shop Drawing submitted to Engineer for review and approval of each variation G. Where a shop drawing is required by the Specifications, any related Work performed prior to Engineer's review and approval of the pertinent submission will be the sole expense and responsibility of Vendor. H. Vendor's coordination of each submittal shall include submission of all components necessary for the Engineer to adequately review submittal, as a complete package. I. Vendor's responsibility for errors and omissions is not relieved by the Engineer's review of submittals. 1.6 ENGINEER'S DUTIES A. Receive, log and forward submittals for review. Review and return submittals with reasonable promptness. B. Engineer will review and approve with reasonable promptness Shop Drawings, but Engineer's review and approval will be only for conformance with the design concept of the Project and for compliance with the information given in the Contract Documents and shall not extend to means, methods, techniques, sequences or procedures of construction (except where a specific means, method, technique, sequence or procedure of construction is indicated in or required by the Contract Documents) or to safety precautions or programs incident thereto. The review and approval of a separate item as such will not indicate approval of the assembly in which the item functions. C. Engineer's review and approval of Shop Drawings shall not relieve Vendor from responsibility for any variation from the requirements of the Contract Documents unless Vendor has in writing called Engineer's attention to each such variation at the time of submission as required by paragraph 1 08H and Engineer has given written approval of each such variation by a specific written notation thereof incorporated in or accompanying the Shop Drawing approval; nor will any approval by Engineer relieve Vendor from responsibility for errors or omissions in the Shop Drawings or from responsibility for having complied with the provisions of paragraph 1.8G. D. Affix stamp and initials or signature, and indicate approved or requirements for resubmittal. E. Return submittals to Vendor for distribution or for resubmission within 30 days. 01340-3 1.7 RESUBMISSION REQUIREMENTS A. Assign a submittal number that is the same as the original submittal number plus a sequential letter suffix beginning with "A". B. Revise documents as required and resubmit as specified for initial submittal. Indicate on drawings any changes which have been made, including those requested by the Engineer. Indicate in writing any changes not called for by the Engineer on previous submittals. 1.8 DISTRIBUTION A>~'1 ER REVIEW A. Distribute copies of shop drawings and product data which carry the Engineer's stamp to: 1. Vendor's file. 2. Record document file. 3. Subcontractors. 4. Supplier. 5. Fabricator. B. Distribute returned samples as needed. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. END OF SECTION 01340-4 City of Pearland SBR - Pre -Purchase Documents SECTION 01600 PRODUCTS PART1-GENERAL 1.1 WORK INCLUDED A. Provide products for this project that comply with the requirements of this section. Specific requirements of the detailed equipment specification govern in the case of a conflict with the requirements of this Section. B. Comply with applicable specifications and standards. C. Comply with size, make, type, and quality specified or as modified by modification requests approved by Owner. 1.2 QUALITY ASSURANCE A. Design Criteria. 1. Assume responsibility for the design of the products to include structural stability and operational capability. 2. Design members to withstand all loads imposed by installation, erection, and operation of the product without deformation, failure, or adversely affecting the operational requirements of the product. Size and strength of materials for structural members are specified as minimums only. 3. Design mechanical and electrical components for all loads, currents, stresses, and wear imposed by start-up and normal operations of the equipment without deformation, failure, or adversely affecting the operation of the unit. Mechanical and electrical components specified for equipment are specified as the minimum acceptable for the equipment. B. Coordination. 1. Provide coordination of the entire equipment package, including verification that structures, piping, and equipment components to be furnished and installed by the General Construction Contractor or by others for this project are compatible. 2. Determine that the equipment furnished is compatible with the contract design requirements. 3. Protective coatings and paints applied to equipment shall be fully compatible with the final coatings to be field applied by the General Construction Contractor. 1.3 SUBMI YI ALS Submittals include: A. Operation and Maintenance Manuals per Section 01700, Operation and Maintenance Manuals. B. Equipment Installation Reports per Paragraph 6 of Section 00800, Special Conditions. 01600-1 C. Other documentation as required by detailed equipment specifications. 1.4 GUARANTEES A General Construction Contractor will be required to install the provided equipment in complete accordance with the manufacturer's recommendations. Guarantee products furnished by the Vendor and installed by the General Construction Contractor under this contract against: A. Faulty or inadequate design. B. Improper shipping and handling. C. Improper assembly or erection. D. Defective workmanship or materials. E. Leakage, breakage, or other failure. PART2-PRODUCTS 2.1 MATERIALS A. Design fabricate, assemble, deliver and install according to normally accepted engineering and shop practices except where a higher standard of quality is 'required by the contract documents. B. Manufacture like parts of duplicate units to standard sizes and gages. Like parts are to be interchangeable. C. Two (2) or more items of the same kind are to be identical and made by the same manufacturer. D. Provide products suitable for the intended service. E. Provide new products unless previously used products are specifically allowed in the contract documents. F. Equipment shall not have been in service at any time prior to delivery, except as required by tests. G. Materials shall be suitable for service conditions. H. Iron castings shall be tough, close -grained gray iron free from blowholes, flaws, or excessive shrinkage and shall conform to ASTM A 48. I. Structural members shall be designed for shock or vibratory loads. J. Unless otherwise indicated steel which will be submerged all or in part, during normal operation of the equipment shall be at least 1/4 inch thick. All edges are to be chamfered to preclude any sharp exposed edges K. All furnished products shall have identical products in active, acceptable service a minimum of 3 full years. 2.2 ELECTRIC COMPONENTS Electrical components as required in Section 11100, Sequencing Batch Reactor (SBR) Equipment. 01600-2 2.3 EQUIPMENT APPURTENANCES Cover belt or chain drives, fan blades, couplings, and other moving or rotating parts on all sides by a safety guard. A. Fabricate safety guards from 16 USS or heavier gage aluminum -clad sheet steel or 1/2-inch expanded metal mesh. B. Design guards for easy installation and removal. C. Provide supports and accessories for each guard. D. Provide stainless steel bolts and hardware E. Provide safety guards in outdoor locations designed to prevent the entrance of rain and dripping water. 2.4 ANCHOR BOLTS A. Provide suitable anchor bolts for each product. B. Provide anchor bolts, with template or setting drawings, and all embedded metal equipment required sufficiently early to permit setting the anchor bolts when the structural concrete is placed C. Provide two (2) nuts for each bolt. D. Provide anchor bolts for products mounted on baseplates that are long enough to permit 1-1/2 inches of grout beneath the baseplate and to provide adequate anchorage into structural concrete. E. Provide stainless steel anchor bolts, nuts and washers. 2.5 SPECIAL TOOLS AND ACCESSORIES Furnish tools, instruments, lifting and handling devices, and accessories necessary for proper maintenance and adjustment that are available only from the product vendor or are not commonly available. 2.6 EQUIPMENT IDENTIFICATION PLAQUES Provide a plaque for each piece of equipment. 2.7 LUBRICATION SYSTEMS FOR EQUIPMENT A. Provide equipment lubricated by systems which: 1. Require attention no more frequently than weekly during continuous operation. 2. Do not require attention during start-up or shutdown. 3. Do not waste lubricants. B. Provide lubricants to fill lubricant reservoirs and to replace lubricant consumed during testing, start-up, and operation prior to acceptance of equipment by the Owner. 2.8 INSULATION OF PIPING Insulate all piping on or related to equipment as required to prevent freezing under any condition. 01600-3 PART3-EXECUTION 3.1 INSTALLATION Inspect the equipment for proper installation and make necessary adjustments to ensure that the equipment is placed in proper operating condition per Section 01650 Starting Systems. 3.2 LUBRICATION Lubricate all products provided or installed for this project, including products furnished by the Owner, per the manufacturer s written recommendations until the product is accepted by the Owner. END OF SECTION 01600-4 City of Pearland SBR - Pre -Purchase Documents SECTION 01655 STARTING OF SYSTEMS PART1-GENERAL 1.1 WORK INCLUDED A. The General Construction Contractor and Vendor shall initially start-up and place all equipment installed by him into successful operation according to manufacturer's written instructions and as instructed by manufacturer's field representative. Provide all material, labor, tools, equipment and expendables required The start-up shall be for a minimum period of 14 calendar days B. General Activities include: 1. Cleaning. 2. Removing temporary protective coatings. 3. Flushing and replacing greases and lubricants, where required by manufacturer. 4. Lubrication. 5. Check shaft and coupling alignments and reset where needed. 6. Check and set motor, pump and other equipment rotation, safety interlocks, and belt tensions. 7. Check and correct, if necessary, leveling plates, grout, bearing plates anchor bolts, fasteners, and alignment of piping which may put stress on pumping equipment connected to it. 8. Check electrical and control compatibility. 9. All adjustments required. 10. Provide product data. C. Provide initial filling of lubricants and all other required operating fluids to proper levels. D. Also provide fuel, electricity, water, filters, chemicals and other expendables required for initial start-up of equipment and plant operation demonstration unless otherwise specified. 1.2 MINIMUM START-UP PROCEDURES A. Bearings and Shafting. 1. Inspect for cleanliness, clean and remove foreign materials. 2. Verify alignment. 3. Replace defective bearings, and those which run rough or noisy. 01655-1 4. Lubricate as necessary, in accordance with manufacturer's recommendations. B. Drives. 1. Adjust tension in V-belt drives, and adjust varipitch sheaves and drives for proper equipment speed. 2. Adjust drives for alignment of sheaves and V-belts. 3. Clean and remove foreign materials before starting operation. C. Motors. 1. Check each motor for comparison to amperage nameplate value. 2. Correct conditions which produce excessive current flow and which exist due to equipment malfunction. D. Pumps. 1. Check glands and seals for cleanliness and adjustment before running pumps. 2. Inspect shaft sleeves for scoring. 3. Inspect mechanical faces, chambers, and seal rings, and replace if defective. 4. Verify that piping system is free of dirt, debris and scale before circulating liquid through the pump. E. Valves. I. Inspect both hand and automatic control valves, clean bonnets and stems. 2. Tighten packing glands to assure no leakage, but permit valve stems to operate without galling. 3. Replace packing in valves to retain maximum adjustment after system is judged complete. 4. Replace packing on any valve which continues to leak. 5. Remove and repair bonnets which leak. 6. Coat packing gland threads and valve stems with a surface preparation of "Moly-Cote" or "Mallow - Pro", after cleaning. F. Verify that control valve seats are free from foreign material, and are properly positioned for intended use. G. Tighten all pipe joints after system has been placed in operation. Replace gaskets which show any sign of leakage after tightening. H. Inspect all joints for leakage. 1. Promptly remake each joint which appears to be faulty, do not wait for rust to form. 2. Clean threads on both parts, apply compound and remake joints. 01655-2 I After system has been placed in operation, clean strainers, dirt pockets, orifices, valve seats and headers in fluid system, to assure freedom from foreign materials. J. Open traps and air vents where used, remove operating elements. Clean thoroughly, replace internal parts, and put back into operation. K. Remove rust, scale and foreign material from equipment and renew defaced surfaces. L. Set and calibrate equipment, including all electrical and control systems. M. Inspect fan wheels for clearance and balance. Provide factory -authorized personnel for adjustment when needed. N. Check each electrical control and power circuit to assure that operation complies with specifications and requirements to provide desired performance. O. Inspect each pressure gage and thermometer for calibration. Replace items which are defaced, broken or, or which read incorrectly. P. Repair damaged insulation. Q. Vent gasses trapped in any part of systems. Verify that liquids are drained from all parts of gas or air systems. R. Aeration system, blowers, skid components, valves, diffusers, expansion joints shall be started by factory authorized personnel. 1.3 INITIAL FACILITY START-UP A. Prior to start-up of the facilities, the General Construction Contractor will have prepared and pre -tested all equipment insofar as possible to check its ability for sustained operation, including inspections and adjustments by manufacturer's servicemen. B. After the facilities are sufficiently complete to permit start-up, the General Construction Contractor and the Vendor will assist the Operator to start up the facilities as required. The General Construction Contractor will be responsible for start-up of all facilities constructed under this Contract. During the initial start-up period for equipment and controls, the General Construction Contractor will check and provide for satisfactory mechanical operation of the facilities. The manufacturer's representatives shall be present during this period to instruct the plant operators in the care operation, and maintenance of the equipment. C. Prior to start-up of any equipment, the General Construction Contractor will prepare a schedule detailing the proposed start-up and his plans for manpower and auxiliary facilities to be provided. The start-up schedule is subject to review by the Engineer. D. Start-up of the facilities by the General Construction Contractor will include all mechanical facilities such as pumps, compressors, belt filter press, polymer system, and like equipment, and the ventilating, air conditioning, or heating, plumbing and electrical systems. Start-up of the plant shall include a one -week clear water start-up of all the process equipment. E. The permanent plant power service is required for testing and initial start-up. F. The Owner will pay for the cost of all power, water, and chemicals during the start-up period. At the end of the start-up period, the General Construction Contractor will request written acceptance of start-up from the Owner if all equipment is operating within specified limits. If any or all of the facilities are not operating 01655-3 satisfactorily at the end of the start-up period, the General Construction Contractor will continue to operate those facilities, with the assistance of the Operator, that are incomplete or not operating satisfactorily until they are complete and acceptable to the Owner. 1.4 OPERATION DEMONSTRATION A. When the start-up period is completed and accepted, the General Construction Contractor will demonstrate the ability of the plant to meet permit requirements by operating the plant with the assistance of the Operator for 14 consecutive calendar days within a period of 30 days. All major process equipment shall be operational within this consecutive 14-day period. If major equipment is not operational, General Construction Contractor will make necessary repairs and the 14-day operational period shall start again. During this demonstration period, the City will provide all fuel, electricity and chemicals required to operate the entire plant. During this period the General Construction Contractor will provide labor, spare parts repairs and consumables required to operate the plant. The General Construction Contractor will operate the sludge dewatering system, but the disposal of the sludge shall be the responsibility of the City. The Vendor shall assist the General Construction Contractor during the demonstration period B. A 2-week minimum transition period will be available between clear -water start-up and the operational period to allow seeding of the aeration basins and to start the flow of raw sewage into the plant. C. Equipment warranties shall begin after successful completion of the 14-day (consecutive) operational period and upon approval of substantial completion by Owner's representative. D. At the successful completion of the demonstration period, the Owner will assume responsibility for operation of the facilities provided the system is operating satisfactorily. Successful completion of the demonstration period will also be substantial completion for that portion of the plant 1.5 VENDOR'S REPRESENTATIVE The Vendor shall have a qualified representative present for initial equipment start and available during the initial start-u period and the operation demonstration period. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. END OF SECTION 01655-4 City of Pearland SBR - Pre -Purchase Documents SECTION 01661 INSTRUCTION OF OPERATIONS AND MAINTENANCE PERSONNEL PART1-GENERAL 1.1 REQUIREMENTS A. The manufacturer shall provide the services of a factory trained maintenance specialist to instruct the Owner's operations and maintenance personnel in the recommended corrective and preventive maintenance procedures for equipment as specified in the respective equipment section. B. The qualifications of the specialist shall be subject to approval by the Owner's Representative. C. Manufacturer shall be responsible for coordinating these services at times acceptable to the Owner, with a minimum of 30 days prior notice. D. Manufacturer shall provide a combination of classroom and field/machine shop training. All training shall be conducted at the City of Pearland facilities. 1.2 SUBMITTALS A. Manufacturer shall submit for approval a proposed Lesson Plan for the instruction, 30 days prior to commencement of scheduled training in accordance with Section 01330, Submittals. B. Manufacturer shall submit for approval credentials of their designated maintenance instructor. Credentials will include a brief resume and specific details of the instructor's experience with maintenance of and training on the equipment specified. 1.3 INSTRUCTION LESSON PLAN A. Manufacturer's proposed Lesson Plan shall include the elements presented in the Outline of Instruction Lesson Plan. Specific components and procedures shall be identified in the proposed Lesson Plan. B. Manufacturer's proposed Lesson Plan shall detail specific instruction topics. Training aids to be utilized in the instructions shall be referenced and attached where applicable to the proposed Lesson Plan. "Hands-on" demonstrations planned for the instruction shall be described in the Lesson Plan. C. The manufacturer shall indicate the estimated duration of each segment of the training Lesson Plan. D. Outline of Instruction Lesson Plan. 1. Equipment Operation. a. Describe equipment's operating (process) function. b. Describe equipment's fundamental operating principals and dynamics. c. Identify equipment's mechanical, electrical and electronic components and features. 01661-1 d. Identify all support equipment associated with the operation of subject equipment (i.e., air intake filters, valve actuators, motors). 2. Detailed Component Descriptions. a. Identify and describe in detail each component's function. b. Where applicable, group related components into subsystems. Describe subsystem functions and their interaction with other subsystems. c. Identify and describe in detail equipment safeties and control interlocks. 3. Equipment Preventive Maintenance (PM). a. Describe PM inspection procedures to: 1) Perform an inspection of the equipment in operation. 2) Spot potential trouble symptoms (anticipate breakdowns). 3) Forecast maintenance requirements (predictive maintenance). b. Define the recommended PM intervals for each component. c. Provide lubricant and replacement part recommendations and limitations, along with recommended spare parts. d. Describe appropriate cleaning practices and recommended intervals. 4. Equipment Troubleshooting. a. Define recommended systematic troubleshooting procedures. b. Provide component specific troubleshooting checklists. c. Describe applicable equipment testing and diagnostic procedures to facilitate troubleshooting. 5. Equipment Corrective Maintenance. a. Describe recommended equipment preparation requirements. b. Identify and describe the use of any special tools required for maintenance of the equipment. c. Describe component removal/installation and disassembly/assembly procedures. d. Perform at least two "hands-on" demonstrations of common corrective maintenance repairs. e. Describe recommended measuring instruments and procedures, and provide instruction on interpreting alignment measurements, as appropriate. f. Define recommended torquing, mounting, calibration and/or alignment procedures and settings, as appropriate. g. Describe recommended procedures to check/test equipment following a corrective repair. 01661-2 1.4 TRAINING AIDS A. The manufacturer's instructor shall incorporate training aids as appropriate to assist in the instruction. At a minimum, the training aids shall include text and figure handouts. Other appropriate training aids are: 1. Audiovisual aids such as films, slides, videotapes, overhead transparencies, posters, blueprints, diagrams, and catalogue sheets. 2. Equipment cutaways and samples such as spare parts, damaged equipment, etc. 3. Tools such as repair tools, customized tools, measuring and calibrating instruments. B. The manufacturer's instructor shall utilize descriptive class handouts during the instruction. Photocopied class handouts shall be good quality reproductions. Class handouts should accompany the instruction with frequent reference made to them. Customized handouts developed especially for the instruction are encouraged. Handouts planned for the instruction shall be attached with the manufacturer s proposed Lesson Plan. 1.5 "HANDS-ON" DEMONSTRATIONS A. The manufacturer's instructor shall present at least one "hands-on" demonstration of common corrective maintenance repairs so that all operation and maintenance personnel have the opportunity to witness the demonstration. The manufacturer shall provide the tools and equipment to conduct the demonstrations. Requests for supplemental assistance and facilities should be submitted with the manufacturer s proposed Lesson Plan. The proposed "hands-on" demonstrations should be described in the manufacturer's proposed Lesson Plan. B. In any "hands-on" training situation where Owner's operation or maintenance personnel participate in disassembly or assembly of equipment components, the manufacturer shall be responsible for such disassembly or assembly and shall provide written certification of proper equipment operation to the Engineer. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. END OF SECTION 01661-3 City of Pearland SBR - Pre -Purchase Documents SECTION 01730 OPERATIONS AND MAINTENANCE DATA PART1-GENERAL 1.1 SECTION INCLUDES Submittal requirements for equipment and facility operating and maintenance manuals. 1.2 SUBMITTALS A. Along with the schedule for other submittals as required in Section 01330 - Submittals, submit a list of operation and maintenance manuals and parts manuals to be provided. B. Submit documents, bound in 8-1/2 x 11 inch text pages, 3-ring/D binders with durable plastic covers. C. Prepare binder covers with printed title "OPERATION AND MAINTENANCE INSTRUCTIONS", title of project, and subject matter of binder when multiple binders are required D. Internally subdivide the binder contents with permanent page dividers, logically organized as described below; with tab titling clearly printed under reinforced laminated plastic tabs. E. Contents. Prepare a Table of Contents for each volume, with each Product or system description identified. 1. Part 1. Directory, listing names, addresses, and telephone numbers of Architect/Engineer, General Construction Contractor, Subcontractors, and major equipment suppliers. 2. Part 2. Operation and maintenance instructions, arranged by system. For each category, identify names addresses, and telephone numbers of Subcontractors and suppliers. Identify the following: a. Significant design criteria. b. List of equipment. c. Parts list for each component. d. Operating instructions. e. Maintenance instructions for equipment and systems. f. Maintenance instructions for special finishes, including recommended cleaning methods and materials and special precautions identifying detrimental agents. 3. Part 3. Project documents and certificates, including the following: a. Shop drawings and product data. b. Air and water balance reports. c. Certificates. 01730-1 d. Photocopies of warranties. F. At least one month prior to placing the equipment or facility in service, submit two copies of operation and maintenance manual and parts manual for review. G. Submit six copies of completed volumes in final form 10 days prior to substantial completion. 1.3 EQUIPMENT OPERATION AND MAINTENANCE DATA A. Furnish operation and maintenance manuals for all equipment. Operation and maintenance manual must contain all information required for Owner to operate, maintain, and repair equipment. The manual must be prepared by equipment manufacturer, furnished to the Engineer by General Construction Contractor, and, as a minimum, contain the following• 1. Equipment functions, normal operating characteristics, and limiting conditions. 2. Assembly, installation, alignment, adjustment, and checking instructions. 3. Operating instructions for start-up, normal operation, regulation and control, normal shutdown, and emergency shutdown. 4. Lubrication and detailed maintenance instructions. The maintenance instructions are to include detailed drawings giving the location of each maintainable part and lubrication point and detailed instructions on disassembly and reassembly of the equipment. 5. Troubleshooting guide. 6. Complete spare parts list with predicted life of parts subject to wear, lists of spare parts recommended on hand for both initial start-up and for normal operating inventory, and local or nearest source of spare parts availability; 7. Outline, cross-section, and assembly drawings; engineering data; wiring diagram. 8. Test data and performance curves. B. Furnish parts manuals for all equipment. The manual must be prepared by equipment manufacturers, furnished to Engineer by General Construction Contractor, and, as a minimum, contain the following 1. Detailed drawings giving the location of each maintainable part. 2. Complete spare parts list with predicted life of parts subject to wear, lists of spare parts recommended on hand for both initial start-up and for normal operating inventory, and local or nearest source of spare parts availability. PART2-PRODUCTS Not used. PART3-EXECUTION Not used. END OF SECTION 01730-2 City of Pearland SBR - Pre -Purchase Documents SECTION 11100 SEQUENCING BATCH REACTOR (SBR) EQUIPMENT PART1-GENERAL 1.1 WORK INCLUDED Furnish materials and equipment necessary to install a complete sequencing batch reactor system capable of performing as specified herein. Equipment furnished by the supplier shall include but not be limited to flow control equipment, preprogrammed process controller, aeration equipment, pumps, blowers, decanters, piping within the SBR basin, all valves and operators and all associated appurtenances necessary for proper operation of the manufacturer's system. Due to site restriction the SBR basin maximum outside dimensions are limited to 137.5 feet by 107.5 feet. The four SBR cells must fit within this limit. 1.2 QUALITY ASSURANCE A. Acceptable Manufacturers. 1. Aqua -Aerobics. 2. Fluidyne. 3. US Filter/Jetech. 4. Austgen Biojet. 5. Approved equal. B. Manufacturer's Representative for Start-up and Testing. The services of the manufacturer's technical representative shall be provided for prestart-up installat.on checks, start-up assistance, training of Owner's operating personnel, troubleshooting and other services as required in Section 01655, Starting Systems. C. Experience Requirements. The manufacturer should have not less than 10 similar installations in the United States that have been in satisfactory operation for at least 5 years. 1.3 SUBMITTALS A. Submittals with proposal as required in Section 01330, Submittals. B. Submittals After Purchase Order from General Construction Contractor. 1. Shop drawings as required in Section 01340, Shop Drawings, Product Data and Samples. 2. Operation and Maintenance Manuals as required in Section 01730, Operation and Maintenance Manuals. 1.4 STANDARDS A. The system shall be designed and sized in accordance with the Texas Natural Resource Conservation Commission (TNRCC) criteria. 11100-1 B. The aeration system shall be designed to provide a minimum of 2.2. lb 02/lb BOD5 applied. The air diffuser system, including piping shall be capable of delivering 150 percent of design air requirements. Acceptable aeration will be fine bubble diffused aeration equipment in accordance with this Section. Ceramic fine bubble diffusers will not be acceptable. 1.5 JOB CONDITIONS A. Influent Wastewater Characteristics. 1. Maximum 30-Day Average Flow 2. Peak Two -Hour Flow 3. 5-Day Carbonaceous Biochemical Oxygen Demand (CBOD5) Maximum 30-day Average 4. Total Suspended Solids (TSS) 5. Total Ammonia Nitrogen (NH3-N) 6. Initial Average Flow @ Plant Start -Up 7. Average 5-Day CBOD may be as low as 8. Wastewater Temperature 9. Wastewater pH B. Effluent Requirements from SBR (Before Filters). 1. CBOD5 (Daily Average)* 2. CBOD5 (7-Day Average) 3. CBOD5 (Daily Max.) 4. CBOD5 (Single Grab) 5. TSS (Daily Average)* 6. TSS (7-Day Average) 7. TSS (Daily Max.) 8. TSS (Single Grab) 9. NH3-N (Daily Average)* 10. NH3-N (7-Day Average) 11. NH3-N (Daily Max.) 12. NH3-N (Single Grab) Effluent Requirements at the Receiving Stream. 1. CBOD5 (Daily Average)* 2. CBOD5 (7-Day Average) 3. CBOD5 (Daily Max ) 4. CBOD5 (Single Grab) 5. TSS (Daily Average)* 6. TSS (7-Day Average) 7. TSS (Daily Max ) 8. TSS (Single Grab) 9. NH3-N (Daily Average)* 10. NH3-N (7-Day Average) 11. NH3-N (Daily Max.) 12. NH3-N (Single Grab) * Daily Average is the arithmetic average of all determination within a one -month period. 2.00 MGD 8.00 MGD 217 mg/1 200 mg/1 25 mg/1 0.15 to 1.40 MGD 100 mg/1 55-88°F 6-9 10 mg/1 15 mg/1 25 mg/1 35 mg/1 15 mg/1 25 mg/1 40 mg/1 60 mg/1 2 mg/1 5 mg/1 7 mg/1 15 mg/1 5 mg/1 10 mg/1 20 mg/1 30 mg/1 12 mg/1 20 mg/1 40 mg/1 60 mg/1 2 mg/1 5 mg/1 7 mg/1 15 mg/1 D. Treatment Plant Components. After construction is complete, the plant will consist of influent pumping facilities and a fine screen (1/4 inch) upstream of the SBR tanks. Downstream of the SBR system there will be an 11100-2 automatic backwash filter and ultraviolet (UV) disinfection. Sludge processing facilities will also be provided. No equalization basin is to be used upstream of the SBR units. A site plan is provided which shows the relative location of the proposed equipment. Flow to the filters from the SBR shall be attenuated during the start of the decant cycle, increasing gradually to the peak decant flow rate through an automatically modulated valve. The SBR will be fed, through the headworks, by a lift station that will be level controlled. 1.6 PERFORMANCE REQUIREMENTS A. A four -basin SBR system is to be provided to maintain a near constant outflow at design conditions to minimize impacts on downstream process units. The SBR units are to fit within the area designated on the site plan. The General Construction Contractor will be required to utilize the services of a Wonderware Systems Integrator during construction to integrate the SBR and other plant components with the Wonderware software. Manufacturers of the SBR system shall be responsible for coordination with the Systems Integrator to provide a fully functional system. B. The treatment process shall be controlled by a programmed process controller and shall be capable of incorporating all cycles under all flow conditions. The process controller used shall have the capability of interfacing with Wonderware to be used as the plant -wide supervisory control system. An operator interface terminal, mounted on the front of the panel, shall be provided which will allow operator flexibility to change set points of control equipment. C. The suggested design for the SBR treatment process shall be in accordance with the following : The batch reactors will be operated such that flow is discontinued into a basin after the fill cycle is complete and no flow enters until after the decant cycle is complete. The operational cycles of this facility shall consist of anoxic fill, aerated fill, react (aerated), settle (quiescent) and decant. These restrictions are for all influent flow rate through the peak 2-hour flow. D. Provide a mechanical means of retrieving any equipment in excess of 50 pounds (except piping). E. The aeration system shall consist of retrievable fine bubble diffusers. The aeration system shall be designed to provide oxygen distribution to the entire basin. It shall also ensure mixing to promote suspension of all biological solids in the basin but shall be aided by supplemental mechanical mixers. Provide an air control valve with electric actuator at each basin to cycle air on/off between SBR units. The price bid shall include 100 spare diffusers. Submit certified performance test results demonstrating diffusers' ability to achieve the wastewater oxygen transfer efficiency used in calculations or include the cost of witnessing an aeration transfer efficiency test in the cost of the bid. F. Decant Mechanism. 1. Decanters shall be floating and shall have the capability of mechanically excluding solids and scum. 2. The decanter mechanism shall include safety features to prevent sludge withdrawal. 3. The decanter mechanism shall be constructed of Type 304 stainless steel. 4. If the decant mechanism does not allow emergency fail-safe overflow, an overflow drop box will be required in the SBR basin. 5. Decanters shall be visible and accessible from the basin side wall, providing visual check of the effluent quality and ease of maintenance. 6. Decanters shall be capable of maintaining uniform flow to the downstream process units. 7. Submit the method of allowing overflow from each basin. 11100-3 8. Submit details on how scum and solids will be excluded from the SBR effluent. 9. Each decant mechanism shall be provided with a local control station, enclosed in NEMA 4X, 316 stainless steel panel to operate decanter mechanism in either Auto or Manual mode, bypassing the main Plant Control Center. 10. The decant lines shall each contain an automatic modulating electrically activated valve. G. Sludge pumps are to meet the requirements of Section 11316, Nonclog Submersible Pumps. H. Mixers. Each basin shall be provided with a constant -speed mixer as specified capable of a zone of complete mix equivalent to the surface area of each basin at the design water depth. Complete mix shall be defined as maintaining biological suspension of all mixed liquor suspended solids with an MLSS of 2500 mg/L or less without the introduction of air. I. All control valves required for operation of the SBR, including but not limited to influent, effluent and air valves, shall be provided by the SBR manufacturer. All underground control valves shall be provided with a valve box and cover. All valves and actuators shall be in accordance with Section 15139, Valves and Related Items. J. Provide an automatic dissolved oxygen analyzer/transmitter system capable of interfacing with the SBR control system. K. Level sensing equipment and associated alarms shall be furnished as specified for each basin. 1.7 GUARANTEES The supplier shall submit a bonded process maintenance and performance guarantee, Sequencing Batch Reactor (SBR) Equipment Maintenance and Performance Bond. This bond will guarantee the performance of the SBR system If the system does not perform as required in this specification, the supplier will take action to correct any problems with the system, including, if necessary, converting the SBR system to a nitrification or extended aeration system utilizing the SBR tanks and construction of final clarifiers. PART2-PRODUCTS 2.1 MANUFACTURED PRODUCTS No equipment shall be offered from any vendor not regularly engaged in the production of equipment of the size and character herein specified. Equipment proposed for this facility must meet experience requirements specified in paragraph 1.2C, Experience Requirements 2.2 AERATION SYSTEM A. Furnish retrievable air diffuser assemblies for each basin capable of supplying the required air per basin. Each assembly shall consist of membrane diffusers, frame assembly, manifold weldment, vertical air column, track/beam, flexible air line, isolation valve, and lifting mechanism. The monolithic diffuser assembly shall consist of two sheaths of ultraviolet inhibiting, EPDM material held in place by stainless steel band clamps over a polypropylene support pipe. Each monolithic diffuser assembly shall be fixed to the stainless steel air distribution manifold via a connection coupling. Each diffuser length shall require only one air manifold boring and shall be secured by one expansion type fitting Upon the loss of air pressure, the perforations shall close and the membrane shall seat tightly over the air supply orifices working as a check valve. The frame assembly and 4-inch square diffuser manifold weldment shall be constructed of Type 304 stainless steel. The entire assembly shall be located such that each diffuser centerline is 12 inches above the basin floor. The manufacturer shall provide certified 11100-4 oxygen transfer test results verifying that the aeration system can supply the oxygen required in paragraph 1.4B of this Section. B. The vertical air column shall be constructed of Type 304 stainless steel. Each diffuser assembly shall include a 3-inch diameter wire reinforced EPDM flexible air line with quick -disconnect end fittings, and a Type 304 stainless steel threaded flange with a polypropylene quick -disconnect adapter. The vertical track/beam assembly shall be Type 304 stainless steel. The vertical track/beam shall support the manual lifting mechanism assembly during operation and servicing. C. Each assembly shall include a Type 304 stainless steel diffuser assembly with base socket to receive a portable electric winch. One portable electric winch shall be provided for the diffuser assemblies. The winch mechanism shall be of sufficient design capacity to raise the diffuser rack assembly to the servicing position. The portable electric winch shall operate from a 115-volt, single-phase, 60-hertz electrical supply rated for 18 FLA The winch shall be provided with a minimum of 8 feet of electrical cable. D. Each diffuser assembly shall include a 3-inch diameter manually operated isolation butterfly valve for connection to the main air distribution piping. E. Adhesive anchors of Type 304 stainless steel shall be provided for anchoring the diffuser assemblies to the basin. 2.3 DISSOLVED OXYGEN ANALYZER SYSTEM A. Furnish a complete automatic analyzer/transmitter system for monitoring dissolved oxygen in each basin. The system shall consist of a dissolved oxygen sensor with interconnecting cable, optional sensor mounting assembly and a dissolved oxygen analyzer as specified. B. The complete system shall be manufactured by WTW Measurement Systems, Inc. C. The dissolved oxygen/temperature analyzer(s) shall be microprocessor based, capable of the accurate determination of dissolved oxygen in the range of 0-80 ppm with .01 resolution. Results shall be displayed on a large dot-matrix display with large characters and continuously indicate the measured variable, along with the temperature output value and two piogrammable process parameters such as alarms or diagnostic variables Process temperature may also be continuously displayed in °C or °F. Continuous sensor diagnostics, as well as diagnostics for operational errors or equipment problems, shall be standard. Dual programmable isolated 4-20 mADC outputs for dissolved oxygen and temperature shall be standard All functions, including one point auto - calibration, atmospheric pressure correction, alarm and 4-20 MA outputs output dampening and keyboard security, shall be accessible from the front panel membrane keyboard with tactile feedback The unit shall also incorporate EMI/RFI protection and built-in lightning/surge protection. The analyzer shall be WTW Measurement Systems EcoLine Model OXY170T for 115/230 VAC, 50/80 Hz or 24VDC operation housed in an IP66 ABS enclosure suitable for wall or handrail mounting. The system shall have an accuracy of 1% of measured value + 1 digit. D. The dissolved oxygen sensors shall be a three -electrode potentiostatic, polarographic sensor consisting of a gold cathode silver anode, silver reference electrode and an easily replaceable 50 micron thick gas permeable membrane which is highly fouling resistant for several months duration. The sensor shall be able to operate at up to 145 psi without any pressure influence and include dual thermistors to compensate for process temperature and membrane temperature changes over the range of -5°C to 50° C. The sensor shall also include as standard, EMI/RFI protection and built-in lightning/surge protection. The sensor shall have an integral 23-foot cable, with quick - disconnect plug. The consumable materials in the sensor shall be sufficient for an operating life of approximately 5 years with proper maintenance. The sensor shall be a Model TriOxmatic 700-7 as manufactured by WTW Measurement Systems. E. A universal analyzer/sensor handrail mounting kit with all necessary hardware shall be included with each analyzer. 11100-5 F. Thirty feet of extra cable shall be provided. Cable shall be 7-conductor, shielded heavy-duty type. G. The manufacturer of the system shall furnish a training technician for 1 working day to supervise the installation, the start-up, and instruct Owner personnel in the proper operation and maintenance of the system. H. The control software shall be capable of utilizing dissolved oxygen inputs to control the aeration system. 2.4 MIXER A. Furnish a mechanical floating mixer and related equipment accessories as described herein for each basin. Each mixer shall consist of a motor, direct -drive impeller driven at a constant speed an integral flotation unit and impeller volute. The mixer shall incorporate design enhancements that provide for 5 years without routine maintenance. B. Performance. Each mixer shall have a zone of complete mix equivalent to surface area and depth of the basin. Complete mix shall be defined as maintaining biological suspension of all mixed liquor suspended solids with an MLSS of 2500 mg/1 or less without the introduction of air. C. Mixer Drive Motor. 1. The motor shall be sized appropriately and wired for 480 volt, 60-hertz, 3-phase service. The motor shall be standard efficiency, vertical P base design, totally enclosed fan cooled (TEFC) and generally rated for severe duty. The motor shall in all cases equal to exceed standard NEMA specifications. A minimum service factor of 1.15 shall be furnished. 2. The motor winding shall be nonhygroscopic, and insulation shall equal or exceed NEMA Class F. A labyrinth seal shall be provided below the bottom bearing to prevent moisture from penetrating around the motor shaft. A condensate dram shall be located at the lowest point in the lower -end bell housing. Unit shall have a one-piece motor shaft continuous from the top motor bearing through the lower bearing and down to and through the propeller. The shaft will be manufactured from 17-4 PH stainless steel. 3. Motor bearings shall be regreasable. Sealed bearings are not acceptable Top bearing shall be shielded on the bottom side only. Bottom bearing shall be open. The top and bottom motor bearings shall be of combined radial and axial thrust type. The lower motor bearing inner race shall be locked to the motor shaft via a special washer and locking nut arrangement The shaft shall be threaded just below the lower bearing and shall have a keyway cut into the motor shaft. This key shall accept a tab from the inner diameter of the locking washer and the locking nut shall have recesses to accept a tab from the outer diameter of the locking washer to prevent the nut from backing off. Snap -ring type bearing retainers will not be acceptable. 4. Submerged motors, Jet pumps, submerged gear motors or gearboxes shall not be acceptable. D. Motor Mounting Base. 1. The motor shall be securely mounted onto a solid 304 stainless steel base which is integral with the motor base extension. All submersed wetted motor mounting base components shall be constructed of 304 stainless steel. 2. The upper portion of the motor mounting base, immediately below the lower motor bearing, shall include two independent acting air seals. The two seals shall be capable of sealing off the flow of air from the suction action of the pumped flow, and prevent backflow of liquid during impeller reversal. The lower end of the motor base extension shall be provided with a rotating backflow seal that will prevent grit from being introduced into the anti -deflection insert reservoir, but shall allow liquid to contact the shaft. The backflow seal shaft not require scheduled lubrication or maintenance. 11100-6 E. Flotation. 1. Each unit shall be equipped with a modular float constructed of fiber reinforced polyester skin (FRP) with a central float passage of a size to allow installation and removal of the pump impeller. The float shall be foamed full of polyurethane foam of the closed cell type, and shall be totally seated to prevent the foam from being in contact with the external environment. 2. The minimum reserve buoyancy shall be 2835 pounds. F. Impeller. The impeller shall be designed to pump the liquid from near the surface and direct it down toward the basin bottom. The impeller shall be a two -blade marine -type precision casting of Type 316 stainless steel and shall be specifically designed for the application intended. It shall be dynamically and hydraulically balanced. The propeller must be attached to the motor shaft with a hardened stainless steel pin and set screw. Impeller shall be capable of being reversed to cause backflow liquid movement without causing damage to the mixer chassis and without causing upflow liquid damage to the motor bearing and windings. No liquid spray or other liquid leakage upward onto the surface of the motor support surface or flotation chassis will be allowed. G. Intake Volute Assembly. The impeller shall operate in a volute made of Type 304 stainless steel plate, minimum 3/16 inch thick. H. Vibration. The impeller and rotor unit shall be dynamically balanced as a completed assembly and as an integral unit with the motor mounting base to a vibrational level not to exceed 2 mils at the motor rpm. I. Cable Mooring System. Each unit shall be provided with a maintenance cable mooring system complete with mooring cable clips, thimbles, quick disconnects, anchors, and extension springs as shown on the drawings. Mooring cable, anchors and hardware shall be 304 stainless steel. Field attachment of mooring points to the tank shall be the responsibility of the installing contractor. J. Cable Mooring Electrical Service Cable. 1. Each unit shall include No. 4 four -conductor power cable wired into the motor conduit box and terminating at the basin wall. Electrical cable shall be supplied with kellems grips at the motor and basin wall terminations. Electrical cable floats for flotation of electrical service cable shall be provided. Attachment of cable and supply of junction box/disconnect at the basin wall shall be the responsibility of the installing contractor 2. 304 stainless steel adhesive anchors for attachment of mooring system components to the basin wall shall be provided. 2.5 LEVEL SENSING EQUIPMENT A. Level Sensor. 1. Furnish one level sensor assembly consisting of a galvanized steel mast, 304 stainless steel float weights, and polypropylene -cased liquid level sensors with a smooth chemical -resistant polypropylene casing for each basin Each mast shall include two SPDT level sensors with 3-conductor electrical cable. Electrical cable shall terminate at a junction box/disconnect located at the basin wall. Field wiring and junction box/disconnect shall be provided by the installing contractor 2. Adhesive anchors of 304 stainless steel shall be provided for anchoring the level sensor mast. B. Ultrasonic Level System Assemblies. 1. Furnish one Ultrasonic Level System assembly for each basin to monitor the level. 11100-7 2. Each system shall include a Milltronics Airanger DPL Plus Level Monitor and an Echornax XPS-15 Transducer. 3. The level monitor shall be provided with a measurement range of 1 foot to 100 feet, accuracy of .25% of range, scan 2 points maximum and enclosed in a NEMA Type 4X/1P65 polycarbonate enclosure. 4. The transducer shall have a measurement range of 1.5 to 50 feet, beam angle 6 degrees, frequency 43 KHZ, and a 1-inch NPT stainless steel coupling. Field wiring shall be provided by the installing contractor. C. Both level systems shall be capable of providing a high level and low level alarm to the control system. 2.6 PIPING All in -basin liquid piping shall be ductile iron or polyvinyl chloride in accordance with the following: A. Ductile Iron Piping Systems. 1. Pipe and Fittings. a. Pipe shall conform to AWWA C150 and AWWA C151, thickness Class 51. b. Fittings shall be ductile iron manufactured in accordance with AWWA C110. c. Provide standard 1-mil-thick bituminous coating on outside of pipe and fittings, except on pipe and fittings to be painted. d. Provide cement -mortar lined ductile iron pipe and fittings for all pipe sizes used for pressurized and non -pressurized sewage and sludge service. Cement -mortar lining shall conform to AWWA C104. e. Provide flexible lined ductile iron pipe and fittings for all pipe sizes used for pressurized grit service Flexible lining shall be virgin polyethylene conforming to ANSUASTM D 1248 and applied thermally. f. Provide polyethylene encasement in accordance with AWWA C105 for buried service. Polyethylene shall be ASTM D1248, Type I, Class C (black), Grade E-1 with a minimum nominal thickness of 8 mils. 2. Joints. Provide flanged or grooved -end type joint for aboveground service and push -on and restrained type for buried service unless otherwise designated. Provide sleeve -type flexible joint when designated or required by General Construction Contractor for flexibility Joint types shall comply with the following: a. Flanges. Ductile screwed on threaded end of pipe, conforming to ANSI B16.1, Class 125. Attachment, aligning and facing shall conform to AWWA C115. b. Grooved -End. Comply with AWWA C606 for ductile iron pipe. All grooves shall be rigid unless otherwise noted on drawings. Couplings to be Victaulic Style 31 or approved substitution. c. Mechanical or Seal Type. Joints for busied ductile iron pipe shall be mechanical or boltless gasket -seal (Tyton, Fastite) type and shall conform to AWWA C151 or AWWA C111 d. Sleeve -type flexible couplings shall be Dresser Style 53, Smith -Blair type 430 series, or approved substitution. 11100-8 e. Flanged adapter couplings shall be Dresser Style 127, Smith -Blair 912, or approved substitution. B. Polyvinyl Chloride Pipe Systems (PVC). 1. Pipe and Fittings. a. PVC pipe, Schedule 40 and 80, shall be Type 1, Grade 1, manufactured in accordance with ASTM D1784 and ASTM D1785, with threaded or flanged fittings. All pipe to be threaded shall be Schedule 80. b. PVC gravity sewer pipe, rubber gasket and fittings shall comply with the requirements of ASTM D3034 (SDR35) for sizes 4 inches through 15 inches, and ASTM F679 (Type 1, SDR35) for sizes 18 inches through 27 inches. c. PVC pressure pipe shall comply with the requirements of AWWA C901, pressure class 160, for sizes 1/2 inch through 3 inches; AWWA C900 pressure class 150 psi, for sizes 4 inches through 12 inches; and Uni-Bell UNI-B-11 (SDR18) for 14 inches to 36 inches. Fittings shall be ductile iron for pipe 4 inches and larger Pipe shall be furnished in cast-iron pipe equivalent outside diameters with rubber gasket joints. 2. Joints. a. PVC pipe Schedule 40 and 80. Unless otherwise noted, joints may be screwed or flanged. Flanges shall be one-piece, molded hub type, flat face, 125 pound. Gasket shall be full face. b. PVC gravity sewer pipe joint to be bell and spigot conforming with requirements of ASTM D3212. Gaskets shall meet the requirements of ASTM F477. c. PVC pressure pipe joints shall be bell and spigot, flanged, and mechanical joint. Provide tapping saddles for service connections. 2.7 PROCESS CONTROL PANELS A. Control panels for all equipment provided as part of this package shall conform to these specifications. B. Codes and Standards. 1. Electrical materials and installation shall conform to the minimum requirements and latest revision of NFPA 70, National Electrical Code (ANSI-C1). 2. Installation and materials shall conform to the applicable publications of NEMA, ANSI, IEEE and ASTM. Methods specifically authorized herein shall be in addition to Code requirements. Panels may be constructed from standard enclosures as defined following or custom fabricated for the application. C. Outdoor Control Panels. 1. Control panels and consoles may be fabricated using the standard enclosures that are available for panel manufacturers such as Hoffman Engineering, Hammond Manufacturing and others. 2. Single door control cabinets shall be manufactured from 16-gauge type 304 or type 316 stainless steel. Double door control cabinets shall be manufactured from 12-gauge type 304 or type 316 stainless steel. Cabinet design shall comply with NEMA 4X. The cabinet shall contain an internal removable panel mounted on studs welded to the cabinet. The seams of the cabinet shall be continuously welded, ground 11100-9 smooth and passivated. The cabinet shall have a No. 4 finish in accordance with ASTM A480. The panel door shall be continuously hinged and sealed with a permanently attached oil -resistant gasket. A metal pocket shall be provided on the inner side of the door for holding drawings folded to an 8-1/2" x 11" size. Panels shall have a 3-point latching mechanism with locking pistol grip type handle. Panel shall be furnished with two sets of keys. 3. Control panels shall include an outside lockable door which will deny access to the control switches, status lights, etc., to prevent vandalism. D. Indoor Control Panels. 1. Control panels and consoles may be fabricated using the standard enclosures that are available for panel manufacturers such as Hoffman Engineering, Hammond Manufacturing and others. 2. Single door control cabinets shall be manufactured from 14-gauge steel. Double door control cabinets shall be manufactured from 12-gauge steel. Cabinet design shall comply with NEMA 12. The cabinet shall contain an internal removable panel mounted on studs welded to the cabinet The seams of the cabinet shall be continuously welded and ground smooth. The cabinet shall have a No. 4 finish in accordance with ASTM A480. The panel door shall be continuously hinged and sealed with a permanently attached oil -resistant gasket. A metal pocket shall be provided on the inner side of the door for holding drawings folded to an 8-1/2" x 11" size. The panel shall be primed and finish painted with a two-part high -build epoxy paint. Panels shall have a 3-point latching mechanism with locking pistol grip type handle. Panel shall be furnished with two sets of keys. Panel Wiring. 1. All panels or consoles will be located in non -hazardous (non -classified) areas. General purpose wiring conforming to switchgear practice shall be used. Wire shall be suitably protected from accidental damage. 2. The wiring is to be of the general purpose classification for non -hazardous areas as defined in the National Electrical Code. The wiring shall be neatly cabled and supported in nonflammable plastic wiring raceway. 3. The power wiring in the control panel or console shall be a minimum No. 14 AWG, stranded tinned copper hookup wire, 600 volt. 4. Unshielded instrumentation wiring and control wiring fused for not more than 5 amperes at 240 volts ac or 250 do shall be minimum No. 18 AWG stranded tinned copper hookup wire, 600 volt. 5. Instrument signal wiring shall be minimum No. 18 AWG stranded copper twisted pair, shielded, Belden 9341 or equal unless specified otherwise. 6. All instruments and devices, except those noted herein, shall be wired to terminal blocks. All relay or switch contacts, used or spare, shall be wired to terminal blocks or PLC UO racks. 7. Splicing of wires is not permissible. 8. All connections to devices with terminal screws shall be terminated with AMP Incorporated "Diamond -Grip" preinsulated, ring -tongue terminals or equal. 9. All wiring shall be arranged in such a manner so as not to obstruct access to any device or any future device, and shall be arranged to permit easy removal of the wiring from connections to any device in the panel or console. 11100-10 10. All electronic instrument DC or AC signal wiring shall be grouped according to type of signal and run in separate raceways. All internal wiring is to be routed in the following groups: a. Power and control wiring. b. Signal MA, MV and DC power (48 volts or less) wiring. c. DC above 48 volts wiring. 11. A main circuit breaker shall be furnished with the panel to isolate external power to those panel mounted instruments requiring power. In addition, all hard -wired instruments not individually fused will be provided with a Heinemann No. 0131 or 9011, or equal circuit breaker. Fused instruments are required to have disconnect devices. Plug mold strips may be powered through common circuit breakers with a maximum of 8 units per strip. 12. A duplex receptacle shall be furnished as an additional AC power source (120V) from a separate circuit breaker. This source will be brought in through the terminal strip. 13. Fabricator shall be responsible for a complete circuitry check of the wiring prior to shipping. Fabricator must do a point-to-point check. 14. Wire markers are to be used to tag each wire at both ends. Tagging medium to be typed markers covered with transparent heat -shrink type plastic tubing. 15. All ground terminals of receptacles shall be wired to the frame of the control panel or console. The enclosures of all equipment receiving a power supply shall be solidly grounded. Two (2) ground terminals shall be installed in the control panel or console, one at each end The ground terminals shall be Burndy Type AQ-B (suitable for No. 4 AWG bare copper cable). 16. Fabricator shall furnish suitable fluorescent light fixtures, operating on 120 VAC, 60 Hz, for lighting cabinet interior with on -off switch, conveniently located, for all panels more than 16 inches deep. 17. Pushbuttons, selector switches and indicating lights shall be industrial oil -tight devices, 600 volt, with a rating of NEMA 4. 18. Unfused terminals for wiring shall terminate on Altech RK2 5-4 or equal terminal blocks. Fused terminals shall be Altech STK1 or equal 600-volt terminal blocks. 19. Terminal blocks shall be suitably mounted and readily accessible. Terminal blocks shall, in general, be arranged in a series of rows at approximately 6 inches on center or as shown on the electrical drawings No devices or other material shall obstruct access to the terminal blocks for connection of panel or console wiring or installation of field wiring. No terminal block shall carry more than two wires on either side of any terminal. 20. All points on terminal devices shall be identified by the connected wire numbers. 21. The panel fabricator is to provide at least 20 percent spare terminal points. 22. Any shielded cables terminating on terminal blocks shall be connected to "shield" terminals on the terminal blocks unless terminated in a special connector. The 'shield" terminals shall be grounded to the frame of the control panel or console. 11100-11 F. Panel Nameplates and Tags. 1. Nameplates shall be manufactured from 1/8-inch thick "black" laminated plastic with white core. Nameplates shall be provided for each panel face -mounted device on both the front and rear of the panel or console. Letters shall be uppercase vertical block lettering. 2. All components in the interior of the control panel or console, including electrical switches and circuit breakers relays, bulkhead connections, and other auxiliary devices shall be identified with metal or plastic nameplates. Nameplates shall not be mounted on removable covers or interchangeable parts. 2.8 PROCESS CONTROL SYSTEM EQUIPMENT A. The process control system equipment for execution of the SBR process software shall be an industrial programmable logic controller (PLC). For compatibility with other plant equipment, the PLC shall be a General Electric model 90/30 PLC. B. Programmable Logic Controller Functionality. 1. The basic control system logic shall be performed by the programmable controller device. The PLC will interface to discrete and analog inputs from and provide discrete and analog outputs to equipment and instrumentation. 2. Within the PLC will exist a database containing input signal conditioning requirements, and range values for each point. A loss of power shall not alter this database information for at least 144 hours. 3. The PLC shall contain the necessary number of power supplies capable of accepting 120 volts alternating current power and producing the voltage types and levels required for PLC and Input/Output (I/O) operation. 4. The PLC shall contain a communications co -processor providing a MODBUS communications. 5. Each analog input module shall have the following features: a. Receive a 4-20 milliampere direct current single -ended signal. b. Perform analog -to -digital conversion with a minimum of 12-bit resolution. c. Each channel shall be galvanically isolated. d. Provide overvoltage protection for up to 120 volts alternating current. e. Have a maximum scan time of 250 ms for all channels. 6. Each analog output module shall have the following features: a. Provide a 4-20 milliampere direct current single -ended signal. b. Perform digital -to -analog conversion with a minimum of 12-bit resolution. c. Have a maximum update time of 56 ms. 7. Each discrete input point shall have the following features: a. Accept contact inputs and provide an indicating light on each I/O card to indicate point status. 11100-12 b. Provide optical input isolation. 8. Each discrete output module shall provide an indicating light on each I/O channel to indicate point status. Where the driven device requires a load current greater than the rating of the PLC output card, the equipment supplier shall furnish an interposing relay with a contact rating sufficient for the application. C. Man -Machine Interface (MMI). 1. The CRT operator workstation installed in the process control panel shall be a flat panel display operator workstation. 2. The CRT Operator Station shall have the following specifications: a. RAM memory sufficient for the MMI application software. b. MMI software shall be InTouch by Wonderware Corporation. c. Access to external hard disk drive and external floppy disk drive. d. Video display driver shall be color with a minimum of VGA resolution. e. Keyboard with 40 function keys. f. Display shall have one (1) serial port and one (1) parallel port minimum. g. Display shall have the capability of attaching a standard 101-key personal computer type keyboard and a Microsoft mouse or equivalent two -button mouse that shall be connected into the operator station such that it does not utilize a serial port. h. The operator station shall operate on 110 to 125 VAC, 47 to 63 Hertz. 3. During normal operation, the operator station shall be able to provide the operator with an overview of the process, to display a specific point or group of points or to allow alarm monitoring. All displays shall indicate points with tag names All numeric values shall be represented with floating point decimal values and with units designations (i.e. gpm, feet, minutes). 4. The chief mode of operation of the plant shall be through the use of "live" graphics displays, with the capability to password protect data groups and displays. 5. Generation of process graphics will be from the operator workstation, and the operating software shall contain a graphics builder program with a library of standard process shapes and the ability to change colors and position these shapes on the CRT screen. This program shall be completely interactive with prompting to allow graphic construction with a minimum of system operation experience required. 6. Process alarm monitoring shall be a background function in each operator station An audible alarm device capable of being enabled or disabled from the operator console shall be provided. The operator station shall have as a standard display an alarm summary. Alarm acknowledgment shall be selectable on point -by -point basis or by designated group. Alarms shall be logged on a operator workstation printer with information as to tag number, alarm type, time and date of alarm and time and date of acknowledgment. 7. The system shall be capable of real-time trending of variables. Trend displays shall be available for both analog and discrete points Selection of the trend variables shall be by the operator from the console keyboard. Trend displays shall show the process variable value on the vertical axis and the time scale on 11100-13 the horizontal axis. All trend displays shall label each display with the tag number of the trended variables and the display time frame. 8. The control panel also shall be equipped with selector switches for manual override of the PLC system in the event of failure of the PLC. Lights on the front of the control panel shall indicate equipment status and equipment failure. All annunciator lights and alarm horns on the control panel shall operate following Instrument Society of America Standard S18.1 sequence AA@. D. Printer. 1. A data logging and alarm printer shall be furnished. The printer shall be furnished with a floor stand. The printer shall be configured in the MMI software to document treatment step changes, time of change, length of each treatment step tank levels and flow rate at the time of the change. The software shall also print alarm conditions and return to normal of any alarm 2. The printer shall utilize a Centronics type parallel interface and shall print data at a rate of not less than 300 characters per second. The printer shall operate on 120 VAC, 60 Hz. 2.9 CONTROL SYSTEM DOCUMENTATION A. The equipment supplier shall furnish the following documentation for the control system. 1. Six (6) sets of documentation on all control system software including complete descriptions and manuals for the operating system program, including complete debugging and diagnostic information and program source code. 2. Six (6) sets of documentation on all control system equipment and hardware, including: a. Complete hardware/equipment manuals for all programmable logic controller equipment, operator stations power supplies and communications interfaces. b. Electrical and electronic elementaries or schematics and connection and assembly drawings, including terminal locations and identifications. Mechanical connection and assembly drawings. d. Installation manuals and instructions containing specific interconnection, power requirements and grounding requirements for the control system equipment. e. User maintenance and operation information manuals. PART3-EXECUTION 3.1 TRAINING A. All training shall be in accordance with the requirements of Section 01661, Instruction of Operations and Maintenance Personnel. B. SBR Training. Provide not less than 3 days of operator training on site prior to start-up and 2 days of operator training after successful completion of the operations demonstration period. This shall be in addition to any site visits for installation and start-up. 11100-14 C. Control System Training. 1. The Equipment Supplier shall provide not less than 40 hours of operator training on -site for not less than 5 people. This operator training shall include "hands-on' experience in using the operator console and instruction in the types of displays and basic system operation. 2. The Equipment Supplier shall provide not less than 40 hours of engineering training for not less than 5 people. This engineering training shall include ' hands-on' experience in using the operator console, instruction in system configuration with the operating software, creation of operating displays, and interpretation of system diagnostics. END OF SECTION 11100-15 City of Pearland SBR - Pre -Purchase Documents SECTION 11316 NONCLOG SUBMERSIBLE SEWAGE PUMPS AND ACCESSORIES PART1-GENERAL 1.1 WORK INCLUDED A. Description. This section provides requirements for furnishing the nonclog submersible sewage pumping units required for the proper operation of the Sequencing Batch Reactor System. The pump system shall include the motors, liquid level controls, and all associated valves and appurtenances to effect a complete operational pumping system. B. Supply of Equipment. All of the equipment called for under this section of the specifications shall be supplied by the pump manufacturer. This includes the motors, control panel and liquid level controls, and portable lifting devices. The supplier shall assume the responsibility for the proper functioning of the equipment. C. Parts and Service. The supplier shall satisfy the Engineer that he maintains the following within the Houston metropolitan area: 1. A store or branch storing a representative supply of parts for the equipment specified, and provisions for securing parts within a reasonable length of time. 2. A shop staffed with qualified factory -trained service personnel. 3. Pickup and delivery trucks for parts or pumps. 1.2 MANUFACTURER'S SERVICES A factory -trained service engineer employed by the pump manufacturer shall advise the installing contractor in the installation and start-up of the pumping units. Upon completion of the physical installation of the unit, the manufacturer shall submit in writing to the Owner's representative a letter stating that the unit has been properly installed and is acceptable for operation The pump manufacturer's service engineer shall include in his bid one working day to advise the Owner's operator of operation and maintenance of the pumping units and controls. 1.3 PUMP SELECTION A. Constant Speed Pumps. Select pumps to operate conservatively over the entire range of total head required for each pump. B. Select pumps with head curves constantly rising toward shutoff and with efficiency curves which peak at or to the left of rated conditions. 1.4 MANUFACTURERS Provide pumps as manufactured by Flygt, Ebara, KSB Pumps, Fairbanks -Morse, or approved equal. 11316-1 1.5 SUBMI I 1 ALS A. Product Data. Submit product data for review by the Engineer in accordance with Section 01330, Submittals and Section 01340, Shop Drawings, Product Data and Samples. This data shall include the following: 1. Manufacturer of pump, size, type, and figure number. 2. Manufacturer of electric motor and guaranteed efficiency at pump rated conditions. 3. Guaranteed performance curves (manufacturer's standard certified test data) for each pump, including head curve, horsepower curve and efficiency curve. Curves shall indicate recommended minimum flow rate, maximum attainable flow rate at rated pump speed, brake horsepower at rated conditions, and maximum horsepower over entire pump performance curve, including shutoff. 4. Guaranteed pump efficiency at rated conditions. 5. Recommended spare parts for 1 year's normal maintenance with prices, delivery and location of stock (local or factory) B. Shop Drawings. Complete drawings, details and specifications for the pumps and their accessories and appurtenances shall be submitted for review by the Engineer. This data shall include the following: 1. Certified dimensioned outline drawings for pumping units and motors with shipping weights and unit weight. 2. Cross -sectional drawing with detailed parts list for pumps and motors. 3. Control panel outline dimensions, including layout of cover -mounted equipment. 4. Control panel wiring diagram with written description of operation. C. Testing and Final Submittals. 1. Factory performance tests, in accordance with the standards of the Hydraulic Institute, shall be required for all sewage pumps with discharge size 10 inches and larger. Six copies of certified factory performance test curves and a copy of the actual test data shall be submitted prior to shipment, including head, capacity, brake horsepower and pump efficiency characteristics for each pump supplied. 2. The following data shall be submitted upon shipment of pumps and motors: a. Installation, operation, maintenance and lubrication manuals. b. Complete bill of materials to include factory part numbers, or drawing numbers, which would indicate interchangeability, materials of construction, and the number of parts used in one unit. c. Facsimile or rub -off of nameplate on pumps and motors. Pump nameplate must include impeller size or number. 1.6 NOISE AND VIBRATION A. Select equipment to operate with minimum of noise and vibration. If, in the opinion of the Engineer, objectionable noise or vibration is produced or transmitted to or through building structure by equipment, piping ducts, or other parts of work, rectify such conditions without change in the contract sum. 11316-2 B. If equipment is judged by the Engineer to produce objectionable noise or vibration, the General Construction Contractor, at his expense, must demonstrate that the equipment performs within limits set forth on the vibration chart at the end of this section. PART2-PRODUCTS 2.1 PUMP TYPE The pumps shall be vertical, single -stage, single -suction, nonclogging raw sewage centrifugal type for operation in a submerged condition. Each unit shall be equipped with a submersible electric motor, completely shop assembled in the pump manufacturer's plant, accurately aligned and properly prepared for shipment. 2.2 PUMP DESIGN The pumps shall be capable of handling waste sludge. The discharge connection elbow shall be permanently installed in the basin along with the discharge piping. Anchor bolts for the discharge connection elbow shall be Type 316 stainless steel. The pumps shall be automatically connected to the discharge connection elbow when lowered into place, and shall be easily removed for inspection or service. There shall be no need for personnel to enter the basin to either disconnect or reconnect the pump Sealing of the pumping unit to the discharge connection elbow shall be accomplished by a simple linear downward motion of the pump. A sliding guide bracket shall be an integral part of the pump unit The entire weight of the pumping unit shall be guided by no less than two guide bars to and pressed tightly against the discharge connection elbow, with metal -to -metal contact. Sealing of the discharge interface by means of a diaphragm, 0-ring or other devices will not be acceptable. No portion of the pump shall bear directly on the floor of the wet well The pump, with its appurtenances and cable, shall be capable of continuous submergence under water without loss of watertight integrity to a depth of 65 feet. Each pump shall be provided with a Type 304 or Type 316 stainless steel lifting cable secured to a stainless steel eyebolt embedded in the top slab. 2.3 CASING Each pump casing shall be constructed of fine-grained cast iron and designed for side tangential discharge. Diffusion vanes are not permitted. The casting shall be designed for a minimum working pressure of 50 psig and hydrostatically tested to 1-1/2 times the working pressure. 2.4 CASING SEALS All mating surfaces where watertight sealing is required shall be machined and fitted with nitrile rubber 0-rings. Fitting shall be such that sealing is accomplished by metal -to -metal contact between machined surfaces resulting in controlled compression of nitrile rubber 0-rings without the requirement of a specific torque limit to effect this. No secondary sealing compounds, rectangular gaskets, elliptical 0-rings, grease or other devices shall be used. 2.5 PUMP SHAM The pump shaft shall be a nickel -bearing chromium steel designed for heat treatment to high mechanical properties with superior corrosion -resistant characteristics. Nonstainless steel pump shafts having direct contact with the raw sewage are not acceptable. The pump shaft shall rotate on two permanently lubricated ball or roller bearings. The shaft shall be of sufficient diameter to assure rigid support of the impeller and to prevent excessive vibration at all operating speeds. 2.6 PUMP SHAFT SEAL Each pump shall be provided with a tandem mechanical rotating shaft seal system running in an oil reservoir having separate, constantly hydrodynamically lubricated lapped seal faces. The lower seal unit between the pump and oil 11316-3 chamber shall contain one stationary and one positively driven rotating tungsten -carbide ring. The upper seal unit between the oil sump and motor housing shall contain one stationary tungsten -carbide ring and one positively driven rotating carbon ring Each interface shall be held in contact by its own spring system. The seals shall require neither maintenance nor adjustment, but shall be easily inspected and replaceable 2.7 OIL CHAMBER Each pump shall be provided with an oil chamber for the shaft sealing system. The oil chamber shall house a pressure equalizer ring filled with air for oil pressure compensation. The drain and inspection plug, with positive anti -leak seal, shall be easily accessible from the outside. 2.8 IMPELLER The pump impellers shall be one-piece cast iron, fully -enclosed, designed with wide passages to prevent clogging when pumping solids trash, rags and string material entrained in sewage. The impeller shall be statically and dynamically balanced. The impeller hub shall be accurately fitted to the impeller shaft and secured to a straight fit on the shaft by means of a key and threaded locknut. Impeller and casing shall be designed to pass the minimum test sphere size scheduled hereinafter. Clearance between the rotating and stationary parts shall be adjustable to provide sustained performance without excessive maintenance. 2.9 WEAR RING A wear ring system shall be installed to provide efficient sealing between the volute and impeller. The wear ring shall consist of a stationary ring made of nitrile rubber molded with a steel ring insert which is drive fitted to the volute inlet, and a rotating stainless steel Type 304 ring which is drive fitted to the impeller eye. 2.10 COOLING SYSTEM Each unit shall be provided with an adequately designed cooling system. Thermal radiators (cooling fins) integral to the stator housing, shall be adequate to provide the cooling required by the motor. Water jacket or other device shall not be necessary for continuous pumping at sump liquid levels below mid -point of stator housing. 2.10 COOLING SYSTEM A. Each unit shall be provided with an adequately designed cooling system, consisting of a water jacket which encircles the stator housing The water jacket shall be provided with a separate circulation of the liquid. Cooling media channels and ports shall be nonclogging by virtue of their dimensions. Provision for external cooling and flushing shall also be provided. B. Thermal sensors shall be used to monitor stator temperatures. The stator shall be equipped with three thermal switches embedded in the end coils of the stator winding (one switch in each stator phase). These shall be used in conjunction with, and supplemental to external motor overload protection and wired to the control panel. 2.11 ELECTRICAL CABLE SEAL The electrical cable entry water seal design shall preclude specific torque requirements to ensure a watertight and submersible seal It shall be comprised of a single cylindrical elastomer grommet flanked by washers all having a close tolerance fit against the cable outside diameter and the entry inside diameter and compressed by the entry body containing a strain relief function separate from the function of sealing the cable. The assembly shall bear against a shoulder in the pump top The cable entry junction chamber and motor shall be separated by a stator lead sealing gland or terminal board which shall isolate the motor interior from foreign material gaining access through the pump top. Epoxies, silicones, or other secondary sealing systems are not acceptable 11316-4 2.12 MOTOR A. Pump motor shall be NEMA Design B, squirrel -cage, induction, shell -type design, housed in an air -filled watertight chamber. The stator winding and stator leads shall be insulated with moisture -resistant Class F insulation which will resist a temperature of 155 C (311 F). The stator shall be dipped and baked three times in Class F varnish. The motor shall be designed for continuous duty, capable of sustaining a minimum of 10 starts per hour. The rotor bars and short circuit rings shall be made of aluminum. B. The Junction chamber, containing the terminal board, shall be sealed from the motor by elastomer compression seal (0-ring). Connection between the cable conductors and stator leads shall be made with threaded compressed -type binding posts permanently affixed to a terminal board and, thus, perfectly leak proof. C. The pump motor cables installed shall be suitable for submersible pump application and shall have Mine Equipment Safety Association approval; such approval shall be indicated by code or legend permanently embossed on the cable. Cable sizing shall conform to NEMA-IPCEA specifications for pump motors. 2.13 EXPOSED SURFACES All exposed nuts and bolts shall be of stainless steel, Type 304 or 316. All surfaces coming into contact with sewage, other than stainless steel, shall be protected with coal -tar epoxy in accordance with Division 9 - Finishes. 2.14 GUIDE BARS The General Construction Contractor shall furnish guide bars of Schedule 40, Type 304 or 316 stainless steel, and of the size recommended by the pump manufacturer. Intermediate guide bar guides shall be furnished, in accordance with the pump manufacturer's recommendation. 2.15 CONTROL PANEL A. A complete control panel shall be provided for installation at each SBR basin. Control panels shall be NEMA 4X Type 316 stainless steel. The control panel shall contain motor starters, fused switches, alternator, control power transformer, relays, selector switches, indicating light, alarms, pressure gages and pressure switches, elapsed -time meter for each pump, etc. The control panel shall be designed to operate on a 480-volt, 3-phase, 60-hertz power supply. Control panels shall have an outside security door to prevent unauthorized access to the panel controls. B. Each pump shall include a "Seal Failure" and over -temperature alarm. C. Components. 1. Starter. For each pump motor provide a minimum size 1, magnetic, full -voltage, nonreversing, combination fused switch starter with 24-volt holding coil. Provide Class RK-5 fuses sized at not more than 1.50 times motor nameplate full load amps. Provide an ambient -compensated thermal overload relay in each phase lag. 2. Control Power Transformer. Provide a single-phase transformer with 24-volt secondary, sized to carry the load of the starters, alternator, auxiliary relays, indicating lights and alarm devices. Connect transformer primary to incoming L1 and L2 terminals through a fused switch with Type RK-5 fuses. Provide a Type RK-5 fuse at the secondary X1 terminal and ground the X2 terminal. 3. Control Relays. If required provide industrial control relays having 24-volt, 60-hertz coils and 10-ampere, 600-volt contacts. Relays shall be octal -socket, plug-in type units. 11316-5 4. Selector Switches. For each pump motor starter, provide a panel -mounted, heavy-duty, oil -tight, maintained -contact, 3-position H-O-A selector switch. Pump operation shall be based on the SBR cycle in the Auto mode with the capability for manual override. 5. Indicating Lights. a. For each pump, provide the following panel -mounted indicating lights: 1) Pump Running - green. 2) Thermal Alarm - amber. b. For the system provide one each of the following alarms: 1) High Level Alarm - red. 2) Low Level Alarm - red. 3) Over -temperature Alarm. 4) Seal Failure Alarm. c. Use heavy-duty, oil -tight, 6-watt, 48 volt, candelabra base 6S6 lamps and operate at 120 volts. 6. Alarm Beacon. Provide a 120-volt rotating or flashing red alarm beacon with a bottom conduit mounting. Unless otherwise noted on the drawings, mount the beacon on top of the control panel. 7. Alarm Reset. The thermal alarm, high level alarm, low level alarm, and bubbler air pressure alarm lights and alarm beacon shall remain energized until a cover -mounted, momentary -contact reset button is depressed. 8. Convenience Group. Provide a 40-watt incandescent lamp with a switch and a NEMA 5-15R receptacle mounted inside the control panel. 9. Control Wiring Neatly and carefully install all control wiring using standard switchboard -type, standard copper wire No 14 AWG or larger. Secure wiring from hinged doors and panels to the enclosure in a manner to allow ample flexibility in bending. Terminate wiring using ring -tongue type connectors under screws. Identify wiring by means of permanent sleeve -type wire markers using designations on the wiring diagrams 10. Terminal Blocks. Provide suitable terminal blocks for all wiring entering the control panel. Identify terminals in accordance with the wiring diagrams 11. Component Identification. Suitably identify each internal component in accordance with the wiring diagrams using Dymo tape labels. Use engraved lamacoid (black -white -black) nameplates with 3/16-inch- high lettering for all door -mounted devices. Attach nameplates to outside of door above the device using oval -head chrome -plated brass machine screws 12. Wiring Diagram. Permanently affix an as -built wiring diagram of the control panel to the inside of the door. 2.16 PUMP PERFORMANCE Pumps shall be selected based on the performance requirements of the SBR manufacturer. 11316-6 PART3-EXECUTION 3.1 WARRANTY The pump manufacturer shall warrant the units being supplied to the Owner against defects in workmanship and material for a period of 5 years under normal use, operation and service. The warranty shall be in printed form and apply to all similar units. 3.2 PAINTING TOUCH-UP Touch-up abrasions and other defective areas in items furnished with factory finish, using primers and paints for finish coat equal to that employed for factory coats. 3.3 OPERATING TESTS After all pump and control systems have been completed and put into operation, subject each system to an operating test under design conditions to ensure proper sequence and operation throughout the range of operation. Make adjustments as required to ensure proper functioning of all systems. END OF SECTION 11316-7 EQUIPMENT VIBRATION CHART VIBRATION FREQUENCY- CPM 8 10.007 8.00 6.00 400 _3.00 2.00 1.00 0.80 0.60 0.40 0.30 0.20 w 010 0.08 O 0.06 0.04 0.03 I 9 1- W 2 W 0 CL 0.004 0 0.003 2 O 0.002 > 0.001 0.02 a01 0.008 0.006 0 0 0 00 N 8 v g 00 00 Ord i f 1 1 I o$ 000 0 aos r054 n { 1 1 1 1 1 1 t 1 1 1 I tc'eted 1 1 1 1 1 1 1 Plotted limits are for vibration at the frequency (Filter In) equal to operating speed taken under normal load condition on the equipments bearing housings in the radial and axial directions Overall vibration ( Filter Out) shall not exceed 1.5 times rotating speed vibration and never more than 5.0 Mils 1 1 r 0 8 0 0 0 0 d N 0 g a 00 00 gS 0 0 0 d 0 11316-8 City of Pearland SBR - Pre -Purchase Documents SECTION 11379 POSITIVE DISPLACEMENT BLOWER PART1-GENERAL 1.1 SUMMARY Furnish three (3) complete skid -mounted positive displacement blower packages to provide all air required for the SBR system described in Section 11100 Two (2) blowers shall provide 100% of the required air with the third blower in standby. 1.2 RELATED WORK A. Mechanical. Division 15. B. Electrical. Division 16. 1.3 SUBMITTALS Provide complete descriptive data on the blower and motor, including, but not limited to, blower curves, horsepower requirements, materials of construction for blower components, bearing life ratings, controls, accessories and related information. Provide description of motor information in accordance with motor section. 1.4 QUALITY ASSURANCE Blower manufacturer shall furnish the services for a minimum of 2 days of a factory -trained mechanic to check the installation of the blower, make any field adjustments necessary to assure proper mechanical operation and to instruct the plant personnel on proper operating and maintenance procedures. The blower manufacturer will submit to the Owner s Representative a written report certifying that the equipment has been satisfactorily installed and lubricated. 1.5 OPERATION AND MAINTENANCE A. Information. Provide operation and maintenance information. Provide 5 copies of operating and maintenance instructions, service manuals and parts lists applicable to each item of equipment furnished Delivery of required documents is a condition of final acceptance. Operation and maintenance instructions should include all nameplate data and design parameters. Clearly distinguish between information that pertains to the particular equipment and information which does not. B. Instructions. Upon completion of work, and at a time designated by the Owner's Representative, provide services of a competent representative of the blower manufacturer for a period of at least 8 hours to instruct the Owner's operating personnel in the operation and maintenance of the equipment. 1.6 DESIGN CRITERIA The following shall be provided by the SBR supplier for the process design conditions specified under Section 11100, Sequencing Batch Reactor (SBR) Equipment. Furnish the following additional information on sizing the blowers with the SBR proposal. A. Identification. 11379-1 B. Capacity. scfm. C. Discharge Pressure. psig. D. Inlet Elevation. feet. E. Inlet Temperature. EF. F. Driver Arrangement. Belt/sheave. G. Horsepower. maximum. H. Control Protection. Surge. I. Filter/Silencer Capacity. cfm. J. Select equipment to operate with minimum of noise and vibration. If equipment is judged to produce objectionable noise or vibration, the General Construction Contractor, at his expense, must demonstrate that the equipment performed within limits set forth on the vibration chart. If it cannot be demonstrated, rectify such conditions without change in the contract sum. Refer to vibration chart shown in Section 11316. PART2-PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS Rotary positive displacement blowers shall be manufactured by: A. Gardner Denver - Sutorbuilt. B. Dresser -Roots - Whispair. C. Spencer Turbine Co. - Lobe Aire. D. Or approved substitution. 2.2 BLOWER ASSEMBLY A. Description. Provide rotary positive displacement type blower assemblies consisting of two -lobe involute type blowers, motors, couplings or belt drive assemblies, base plates, complete with filter/silencers, expanders, valves, controls, gauges and related items. The complete blower package shall be skid mounted. The maximum dimensions of the skid shall be 57 inches wide, 96 inches long and 100 inches high. B. Materials of Construction. 1. Casing. Cast iron. 2. Timing Gears. Ground alloy steel. 3. Seals. Labyrinth or carbon ring type. 4. Shaft. High-grade machined steel shaft. 11379-2 5. Impeller. Ductile iron. 6. Base and Motor Pedestal. Structural and formed steel. 7. Casing, Headplates, Gear Cover, End Cover. Gray (cast) iron. C. Blowers. The air blowers shall be of the rotary positive displacement type, and shall have at least 3 years of acceptable performance in similar installation. 1. Casing. The blower casing shall be of one-piece construction, with separate headplates, and shall be made of close -grained cast iron suitably ribbed to prevent distortion under the specified operating conditions. 2. Impellers and Shafts. The impellers shall be of the straight, two -lobe involute type, and shall operate without rubbing or liquid seals or lubrication. The impellers shall be statically and dynamically balanced by removing metal from the impeller body. Each impeller/shaft shall be supported by cylindrical roller bearings, and fixed to control the axial location of the impeller/shaft in the unit. A double sealing arrangement shall be provided to prevent lubricant from contaminating the air stream. 3. Timing Gears. The impellers shall be timed by a pair of carburized and ground steel spur gears, mounted on the shafts with a tapered fit and secured by a locknut or wedge rings. 4. Lubrication There will be provided a positive oil seal at each bearing, designed to prevent lubricant from leaking into the air stream. Rotary piston ring shaft seals (or equivalent) shall be provided at the point where the shaft passes through the headplate. Further provision shall be made to vent the impeller side of the oil seal to atmosphere to eliminate any possible carryover of lubricant into the air stream. The timing gears and the bearings shall be splash lubricated. 2.3 DRIVE SYSTEM The blower shall be mounted in a horizontal position. Blowers shall be V-belt driven by 1800 rpm motors. A suitable guard meeting OSHA specifications shall be supplied. A. Drive. Provide V-belt drive assembly consisting of sheaves, quick detachable bushings, V-belts, and sliding motor base. Each blower shall be provided with two extra sets of sheaves and belt sets to operate blowers at 100%, 75%, or 50% to meet initial low plant flow conditions. B. Guard. Provide OSHA style steel belt guard to enclose drive and belts Design guard for easy removal. The guard shall be constructed to allow visual inspection of the diive system without removing the guard. 2.4 DRIVE MOTOR A. Provide TEFC motor in accordance with Section 16222, AC Electric Motors. Motor rating will be 460 volt, 3 phase, 60 hertz. B. General Construction Contractor shall provide an elapsed run time meter for each motor. The elapsed run time meter shall be 6-digit, non-resettable, and sealed against dirt and moisture, 120 VAC, with indication of blower run time in hours with 1/10 hour increments. 2.5 CONTROL PANELS Provide local freestanding control panels, one for each blower. A. Controls shall be mounted in a NEMA 4X stainless steel cabinet. 11379-3 B. The control panels shall contain the following as a minimum for each blower: 1. Hand -Off -Auto (HOA) selector switch. 2. Inlet pressure gauge. 3. Outlet pressure gauge. 4. Outlet temperature gauge. 5. Run -Off indicating lights. 6. Vibration monitor. 7. Shutdown relay connected to temperature, pressure, and bearing vibration sensors. 8. Alarm light. 9. Dry contact for common alarm function for each blower for remote monitoring. 10. Provide all conduit and wiring between control panel and all field devices in accordance with applicable sections of Division 16, unless otherwise noted or shown in drawings. C. Control panels shall be provided with outside security door to prevent access to panel controls. 2.6 PD BLOWER OPERATION A. The supplier of the positive displacement blowers shall furnish a local control panel for each blower. B. For the operation of each blower there shall be a local Manual -Off -Auto (HOA) switch on the control panel. The Manual and Off positions of the HOA switch shall allow the operator at the control panel to turn the blower On or Off. The Auto position is for control by the SBR operating program. Once the blower motor has started, two indicating lights on the control panel shall indicate motor On and motor Off. C. Also associated with each blower shall be a blower suction pressure gauge, discharge pressure gauge, discharge temperature gauge, equipment base, vibration sensors inlet air filter, inlet and discharge silencers, flexible connectors, pressure relief valve, check valve, and butterfly valve furnished by the blower equipment supplier 2.7 ACCESSORIES A. Provide dry -type inlet filter with pressure differential indicator, chamber type inlet and discharge silencers, flex connectors between blowers and silencers, OSHA certified belt guard spring -type relief valves, discharge pressure gauge, flanged check valve, butterfly valve pressure relief valve expansion joints and other related items to provide a complete blower system. B. Equipment Base. The base shall be built so that the blower and the motor are mounted to provide for horizontal tensioning of the drive. The base shall be plate steel with angle iron legs. The blower package supplier shall submit detailed drawing of the base for review by the Engineer prior to manufacture. All welds are to be continuous and full penetration. Each leg shall be gussetted in two planes. Bases constructed of all angle iron are not acceptable C. Intake Filter. Provide each blower with a suitably sized air filter for the flow rates listed under design criteria. Inlet filters to be Model CCF Type as manufactured by Universal Silencer or equal 11379-4 D. Intake Silencer. Provide a heavy-duty, all -welded, noise attenuation unit constructed of carbon steel sheet and plate and featuring an acoustically treated outlet for pulse control. Provide silencer equal to Model RISY on silencers larger than 4 inches and RIS type on sizes 4 inches and smaller. Silencers to be manufactured by Universal Silencer or equal. Provide two carbon steel, clamp -type supports at each end of silencer for rigidly mounting silencer horizontally to the blower package base. E. Discharge Silencer. Provide a heavy-duty, all -welded, noise attenuation unit constructed of carbon steel sheet and plate and featuring an acoustically treated outlet for pulse control. Provide silencer equal to Model SDY on sizes larger than 4 inches and RD type on 3 inches and smaller. Silencers to be manufactured by Universal Silencer or equal. Provide two carbon steel clamp -type supports at each end of silencer for rigidly mounting silencer horizontally to the blower package base. Fasteners to be plated steel. F. Expansion Joints. Provide flanged sleeved cylindrical type, 3-ply bias fiberglass reinforced silicone rubber connectors for blower inlet and discharge connections. Furnish units which are capable of withstanding 25 psi and handle operating temperatures of 350 F. Expansion joints to be equivalent to XL -Far Series 500; Mercer Rubber Co.; General Rubber Corp.; Metra Flex Co, or equal. G. Pressure Relief Valve. Provide weight -type relief valve with proper sizing and weights for setpoint pressure. Provide valves equivalent to PL-4 manufactured by Sutorbilt. Spring -type valves are not acceptable. H. Check Valves. Provide wafer -type, cast iron body, aluminum internals for mounting on blower discharge piping. Provide valve equivalent to Techno Model 5118. I. Discharge Butterfly Valve. Provide wafer -type, resilient -seated, lever -operated, tight -closing butterfly valve for positively 'solating the blower from the manifold system. Furnish valve with cast iron body and disc of nodular iron; stainless steel stem, acetal bushing; Buna-N seat; and 316 SS torque plug valve shall be Keystone model 2111785 or equivalent DeZurik, Crane or Pratt. J. Vibration Isolator Pads. Adequate thickness vibration isolation pads shall be provided for each blower assembly. Vibration pads shall be molded, synthetic rubber and cork materials, sized to fit the structural steel base. 2.8 INSTRUMENTATION A. Discharge Pressure Gauge. Provide a stem -mounted discharge pressure gauge on the blower package to be equivalent to U.S. Gauge McDaniel Instruments or approved equal. 1. Range: 0-15 psig. 2. Accuracy: 1 percent of full scale. 3. Dial: 2-1/2 inches, 270-degree scale B. Inlet Manometer. Each blower shall be provided with a Dwyer inlet manometer to measure the headloss across the inlet filter. C. Inlet and Discharge Temperature Gauges. Each blower shall be provided with an inlet and discharge thermometer to measure the discharge air temperature of the blower. The gauges shall be Ashcroft Series EL, Grade A, as manufactured by Dresser Industries, Instrument Division of Stratford, Connecticut, or equal. D. High Temperature Shutdown Switch. Provide a high temperature shutdown switch in NEMA 7/9 rating enclosure with remote alarm. The temperature switch shall be liquid -filled type with 5 feet of AISI 304/316 stainless steel armor capillary and shall be built with capillary -type sensor with remote 3-3/4 brass bulb installed on the discharge side of each blower by blower package supplier at an accessible location. The switch will have a 11379-5 maximum temperature rating of 400 F suitable for a single -pole, double -throw, normally open or normally closed action. E. High Pressure Shutdown Switch. Provide a high pressure shutdown switch in a NEMA 7/9 enclosure with remote alarm The pressure switch assembly shall be diaphragm type, equipped with gauge cock and snubber, with a single -pole, double -throw, normally open and normally closed contact switch The pressure switch assembly shall be connected at the discharge side of each blower package using stainless steel tubing and fittings by the blower package supplier at a location easily accessible to make any field adjustments. F. Vibration Monitor and Temperature Sensor. For each blower assembly, the blower package supplier will provide a vibration monitor and bearing temperature sensor to shutdown blower during excessive vibration and premature bearing failure due to excess bearing temperature with remote alarm. 2.9 FACTORY TEST A. The motor -driven rotary -lobe positive displacement blower shall be shop tested in accordance with the following: 1. Performance Test. The blower shall be tested at design operating speed in accordance with ASME requirements. The data shall be recorded for the entire range of the blower performance curve. B. General Construction Contractor shall furnish certified copies of the test data and performance curves for approval before shipment. C. The Owner's Representative reserves the right to witness the factory testing at the Owner's expense. Three weeks notice shall be given prior to the shop test. PART3-EXECUTION 3.1 OPERATING TESTS After all equipment installation has been completed and put into operation, subject each to an operating test under design conditions to ensure proper sequence and operation throughout the range of operation. Make adjustments as required to ensure proper functioning of all equipment. 3.2 LUBRICATION, REFRIGERANT AND OIL Provide a complete charge of the correct lubricant for blowers. 3.3 SPARE PARTS The General Construction Contractor shall deliver the following spare parts for each size blower: A. One (1) set of seals and gaskets. B. One (1) additional set of V-belts and sheaves (to meet blower initial capacity). C. Four (4) filter elements. D. One case of blower oil. END OF SECTION 11379-6 City of Pearland SBR - Pre -Purchase Documents SECTION 15139 VALVES AND RELATED ITEMS PART1-GENERAL 1.1 WORK INCLUDED This section covers all miscellaneous valves and appurtenances not covered in other sections. 1.2 RELATED WORK A. Submittals. Section 01330. B. Shop Drawings, Product Data and Samples. Section 01340. 1.3 SUBMITTALS A. Complete specifications, data and detailed drawings covering the items furnished under this specification shall be submitted for approval in accordance with the procedure set forth in Section 01340. Catalog cuts, showing sufficient detail as determined by the Engineer, will be acceptable in lieu of detailed drawings for valves smaller than 16 inches in size and for other miscellaneous small items for which detailed drawings are not readily available. B. Operation and Maintenance Instructions. Submit operating and maintenance manuals applicable to each item of equipment furnished as specif ed in Section 01600. PART2-PRODUCTS 2.1 BASIC REQUIREMENTS All valves and accessories shall conform to the requirements shown and scheduled on the plans and as hereinafter specified. Pipe and valve purchase orders shall be coordinated to ensure proper installation of the valves and piping in conformance with the specified requirements. A. Valve Design. 1. Provide valves designed for repacking or resealing under pressure when fully opened. Perform shell and seat tests and stamp valve to show that tests have been successfully completed. 2. Packing. Use packing suitable for intended service, equipped with gland followers and having pressure and temperature ratings not less than design criteria applicable to components of the system as noted on the Valve Schedule. 3. Seals. For trunion mounted valves use resilient seals suitable for the intended service. 15139-1 Provide valves conforming to the following material specifications: Material Bronze - 150 psi maximum Bronze - 300 psi maximum Cast Iron Nodular Cast Iron Carbon Steel, Cast Carbon Steel, Forged Fabricated Steel B. Valve Operators. Specifications ASTM B 62 ASTM B 61 ASTM A 126, Class B ASTM A 339, Grade 60-45-10 ASTM A 216, Grade WCB ASTM A 105, Grade II ASTM A 7 or better 1. Unless otherwise shown or specified, each valve must be equipped with a manual operator and shall be provided with a suitable operating wheel. 2. Manual operators on aboveground valves 6 inches and larger shall be geared operators. These geared manual operators shall be fully enclosed and shall be the traveling nut type, rack and pinion type, or worm gear type for valves 20 inches and smaller. The valve shaft shall extend from the valve to the operator and shall be as specified for valve shafts. The space between the operator housing and the valve body shall be completely enclosed such that no moving parts are exposed to the soil or the elements. Operator housings for valves shall be oil -tight and watertight shall be specifically designed for buried service, and shall be factory packed with a suitable grease. The valve supplier shall install a valve position indicator on each operator housing. Operators 6 feet or less aboveground shall be provided with a handwheel for manual operation. 3. Worm gear operators shall be designed such that a torque in excess of 160 foot-pounds will not have to be applied to operate the valve at the most adverse condition for which valve is designed. Traveling nut operators shall be designed such that a torque in excess of 100 foot-pounds will not have to be applied to operate the valve at the most adverse condition for which the valve is designed Limit stops shall be installed on the input shaft of all manual operators in the OPEN and CLOSED positions The vertical axis of the operating nut shall not move as the valve is opened or closed 4. Chainwheels. Any valve which is installed with operator located 6'-1" or more above the floor and is not required to be equipped with other type of operator shall be provided with suitable chainwheel and operating chain Each chainwheel-operated valve shall be equipped with chain guide which will permit rapid handling of the operating chain without "gagging" of the wheel and will also permit reasonable side pull on the chain. Operating chains shall be heavily plated with zinc and cadmium and shall be looped to extend to within 4 feet of the floor below the valve. 5. Wrench nuts shall be provided on all buried valves, on all valves which are to be operated through floor boxes, where shown on the plans All wrench nuts shall comply with Section 20 of AWWA C500. Not less than two operating keys shall be furnished for operation of the wrench nut operated valves, one 6- foot length and one 10-foot length 6. Unless otherwise shown or specified, plug, ball and butterfly valves 6 inches and less in size shall be lever operated. 7. Rotation. The direction of rotation of the wheel wrench nut and lever to open each valve shall be to the left (counterclockwise). Each valve body or operator shall have cast thereon the word OPEN and an arrow indicating the direction to open. 15139-2 8. Ends. Unless otherwise specified or shown on the plans, all 3-inch or larger buried valves shall have mechanical joint ends or push -on type joint ends. All other 3-inch or larger valves shall have ends conforming to plan drawing and schedule requirements either flanged or grooved -end coupled. Unless otherwise required by the plans flanges shall conform to ANSI B16.1, Class 125, flat -faced serrated finish to match flanges on piping. 9. Valves 2-1/2 inches or smaller in size may have threaded ends unless otherwise shown on the plans. Screwed end gate valves shall be used in copper tubing. 2.2 GATE VALVES (GTV) Gate valves shall open counterclockwise. Gate valves 3 inches and larger for use in sewage applications shall conform to AWWA C500, shall be 125 psig SWP, iron body, bronze -mounted, solid wedge disc as manufactured by M&H, Style 2067, for buried service and Style 2068 for aboveground service, or approved substitution. 2.3 CHECK VALVES (CKV) A. Swing Check Valves, 4-inch and Larger (CKV-1). Swing check valves 4 inches and larger shall be iron - body bronze -mounted, full -opening check valves with 125-pound ANSI flanged ends Mueller No. A-2600-6-01, M&H Style 159, Fabri-Valve 10 or approved substitution. Valves shall be rated at 175 psig Valves shall have stainless steel hinge pin keyed to hinge, and adjustable packing glands Valve shall be equipped with outside lever and weight so constructed and so positioned that it can operate without interference by any piping, supports or equipment. B. Non -Slam Check Valves (CKV-2). Wafer type for mounting between flanges; cast-iron body with bronze - faced plates. Valve openings divided in half using lightweight plates spring locked with stainless steel torsion springs' shaft -mounted internal parts with external shaft seals using NPT socket head pipe plugs. Use resilient seating material suitable for pressure and temperature service (20EF to 250EF), bonded in grooved plates. Provide 316 stainless steel body and plate for process air service check valves. Valves shall be as manufactured by TRW Mission (Duo-chek II), Top Flow or approved substitution. 2.4 ECCENTRIC PLUG VALVE (PLV) A. Provide nonlubricated, eccentric plug valves of semi -steel (ASTM A 126, Class B) with resilient -faced plugs. Valve seat shall have a welded -in overlay of not less than 90 percent nickel on all surfaces contacting the plug face. The stem bearing and bottom bearing shall be of Type 316 stainless steel. Port area of valve shall be not less than 80 percent of full pipe size. Valves shall open counterclockwise. B. Eccentric plug valve shall be DeZurik Figure 118, Victaulic 365, or equal, and shall be designed for 150 psig working pressure. The plug shall be coated with a resilient material which is oil and grease resistant, such as neoprene or Buna-N. Valves shall be adjustable and repackable without removal of valve bonnet while valve is in service. Valves 3 inches and larger shall be furnished with 125-pound ANSI flanged ends or, if victaulic joints are used, with grooved ends. C. Valves 6 inches and smaller shall be lever operated and valves 8 inches and larger shall be provided with enclosed worm gear handwheel operators Equip buried plug valves with valve box DeZurik Figure 341 and operating nut extensions per DeZurik Figure 614 or 615, or approved equal. 2.5 BUTTERFLY VALVES (BFV) Valves and operators shall conform to AWWA Standard for Rubber -seated Butterfly Valves, AWWA C504, except as modified or supplemented herein. Valves may be short or long body, as determined by their location in the pipe system. All manually operated valves for open -close service 20 inches in size and smaller shall be Class 150 B. 15139-3 Provide valves with cast iron body, bronze disc, and 416 stainless steel shaft. All portions of the shaft bearings shall be stainless steel, bronze, nylon, fiberglass and/or Teflon in accordance with AWWA C504. Provide resilient seats of terpolymer or ethylene propylene material or EPDM or equal for air temperature to 250EF. A. Seats shall be bonded to a rigid reinforced phenolic backup ring. The ring shall be retained but not bonded to the body to allow for field removal and replacement. B. Provide locking lever operators on all valves through 6 inches. Use standard enclosed weatherproof gear operators on all valves larger than 6 inches. Operator mounting arrangements and handwheel positions shall be easily accessible or as shown on the plans. Provide all valves with a valve disc position indicator mounted on the end of the valve shaft. Provide lug style body. 2.6 KNIFE GATE VALVES (KGV) Provide valves with full round port opening and metal seat of 304 stainless steel for particular valve service as recommended by manufacturer. All flanges to be drilled and tapped in accordance with ANSI Class 125/150 standard. Valves 24 inches in size and smaller shall have pressure rating of 150 CWP; valves greater than 24 inches shall have pressure rating of 125 CWP. A. All wetted parts of knife gate valves, including gate, seat rings and metal seat, through the body and in the chest shall be of Type 304 stainless steel. The stem shall also be stainless steel and shall have double pitch threads. Valves shall have an adjustable packing gland. B. Valves shall be installed so that liquid pressure from the water will push the gate on the seat. Mark all valves and identify seating side of valve. C. Hydrostatically test the body of the valve at 1.5 times the working pressure. D. Knife gate valves through 8 inches in size shall have handwheel operators; valves 10 inches and larger shall have enclosed bevel gear with handwheel operators, floor stands, gate position indicator, extension and fittings as required. E. Provide lug body style, bonnetless knife gate valves. Valves as manufactured by DeZurik (Series L) or equal. 2.7 RELATED ITEMS A. Valve Boxes. Provide buried valves with cast iron valve boxes of the extension sleeve type suitable for depth of cover over pipe. Furnish valve boxes at least 5 inches in diameter, 3/16 inch thick, with suitable cast iron bases and covers. Coat all parts of valve boxes, bases and covers by dipping in hot bituminous varnish Provide Mueller H-10360, two-piece screw type with base, top section and cover as required, or an approved equal. Identify covers with the casting of service abbreviation. B. Manual Operators. Provide manual operators on valves, except those which are equipped with power actuated operators or designed for automatic operation. Equip manual operator with operating wheel unless otherwise shown or specified. C. Wrench Nuts. Provide wrench nuts on buried valves, on valves which are to be operated through floor boxes and where shown on drawings. Comply with Section 19 of AWWA C500 unless otherwise directed by Owner. Furnish no less than two operating keys for operation of wrench nut operated valves. D. Lever Operators. Plug and ball valves. Lever operated unless otherwise shown or specified. Furnish two suitable operating levers for each type and size of lever operated valve. 15139-4 E. Operating Standards. 1. Provide fabricated steel or cast iron operating stands in locations shown on drawings. 2. Support handwheel or lever approximately 36 inches above floor. 3. Handwheel diameter will not be less than 8 inches. 4. Provide sleeve made for opening in floor beneath each operating stand. 5. Provide suitable thrust bearing in each operating stand to carry weight of extension stem. F. Unions. Provide union or flanged connection within 2 feet of each threaded end valve unless valve can be otherwise easily removed from piping. G. Extension Stems. 1. Extension stems and stem guides shall be furnished and installed on all buried valves, basin drain valves and other valves where shown, specified or required. 2. Extension stems shall be fabricated from solid 304 stainless steel shafting not smaller in diameter than the stem of the valve. 3. Stem couplings shall be both threaded and keyed to the coupled stems and shall be of approved design and construction. Pipe couplings will not be acceptable. H. Floorstand/Operator - Underground Valves. Provide floorstand and handwheel operator coupled to extension stems for underground valves where shown on drawings. 2.8 ELECTRIC VALVE ACTUATORS Provide electric actuators on all air flow control valves, SBR decant valves and raw sewage influent valves. A. Actuators shall include position indicators and anti -condensation space heaters. B. Electric actuators shall be as manufactured by Rotork or Limitorque. C. Electric actuators shall have Factory Mutual (FM) approval for NEMA 4X area classification. D. Motors shall be designed for continuous duty and shall be capable of remote operation based on a 4-20 mA signal. Motors shall be removable as a complete unit. E. A permanently mounted handwheel shall be provided for auxiliary manual operation. The handwheel shall not rotate during powered operation. The motor shall not rotate during hand operation and a fused motor shall not prevent manual operation. F. Integral reversing contactors shall include a control voltage transformer with primary fusing, control circuit protection fuses and two electrically and mechanically interlocked contactors complete with the following• 1. Local "Open -Stop -Close" stainless steel pushbuttons c/w metal guards to protect against accidental tripping. 2. Local light indication by means of two (2) high -intensity LED indicating lights. 15139-5 3. Three (3) position "Local -Off -Remote" padlockable selector switch. G. Operators will also be fitted with terminals for proper grounding, one inside the terminal enclosure and one on the exterior of the operator housing. PART3-EXECUTION Not used. END OF SECTION 15139-6 City of Pearland SBR - Pre -Purchase Documents SECTION 16120 INSULATED CONDUCTORS PART1-GENERAL 1.1 SUMMARY Provide insulated conductors. 1.2 REFERENCE STANDARDS A. ANSI/UL 4 - Armored Cable. B. ANSI/UL 83 - Thermoplastic -Insulated Wires and Cables. C. ANSI/UL 1277 - Electrical Power and Control Tray Cables with Optional Optical -Fiber Members. D. IEEE No. 48 Standard Test Procedures and Requirements for High -Voltage Alternating -Current Cable Terminations. E. ICEA S-61-402 (NEMA WC 5) - Thermoplastic -Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy. F. ICEA S-68-516 (NEMA WC 8) - Ethylene -Propylene -Rubber -Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy. 1.3 SUBMI 11 ALS A. Provide product data on the following: 1. 600-volt conductor, splicing and terminating materials. 2. 5 kV insulated conductor, splicing and terminating materials. B. Provide cable high voltage factory test reports. PART2-PRODUCTS 2.1 IDENTIFICATION Provide new insulated conductors marked according to NEC Article 310. 2.2 600-VOLT INSULATED CONDUCTORS A. Size. As required. 16120-1 B. Construction. 1. Conductor. Soft -drawn, annealed copper. Solid for No. 12 and No. 10 AWG. Stranded for No. 8 AWG and larger. 2. Insulation. Unless otherwise noted, use THWN for general wiring. C. Use. For general wiring use No. 12 minimum. For field -installed control wiring use No. 14 or larger stranded conductors. For tray cable (Type TC) provide a multiconductor cable consisting of insulated conductors as described in the preceding paragraph with an overall outer sheath. Use a nonmetallic sheath that is moisture, sunlight and corrosion resistant and flame retardant, specifically approved for this purpose D. Listing. 1. Single Conductor. UL 83. 2. Tray Cable. UL 1277. 2.3 ARMORED CABLE A. Size. No. 10 AWG minimum. B. Construction. 1. Conductor. Soft -drawn, annealed copper. Solid for No. 12 and No. 10 AWG. Stranded for No. 8 AWG and larger. 2. Insulation. THHN. C. Use. For branch circuits only where installed in existing walls. D. Listing. UL 4, type ACT-HH. 2.4 5000-VOLT INSULATED CONDUCTORS A. Size. As required. B. Single Conductor Construction. 1. Single uncoated annealed copper conductor with Class B stranding. 2. Extruded semi -conducting thermosetting conductor screen firmly bonded to the overlaying insulation. 3. Ethylene -propylene -rubber (EPR) insulation 90 mils thick. 3. Cross -linked -polyethylene (XLP) insulation 90 mils thick. 4. Extruded semi -conducting thermosetting insulation screen. 5. Copper shielding tape 5 mils thick, helically applied with a minimum 25 percent overlap. 6. Polyvinyl chloride jacket with thickness per ICEA. 16120-2 7. The conductor screen, insulation and insulation screen shall be applied in triple tandem extrusion and simultaneously vulcanized. C. Multiconductor Construction. 1. Three conductors, each conductor being as specified in the preceding paragraph "B". 2. For each conductor, provide a phase -identifying means, such as a colored tape. 3. Suitably lay the three insulated conductors and cable together with a grounding conductor, fillers and overall binder tapes Size grounding conductor area to correspond with NEC Table 250-94, "Grounding Electrode Conductor for AC Systems." 4. Enclose the entire 3-conductor cabled assembly in galvanized steel, interlocked armor. 5. Provide a PVC outer jacket with thickness per ICEA. D. High Voltage Factory Test. 1. Corona level test with a maximum partial discharge of 5 picocoulombs. 2. AC test: 13 kV for 5 minutes. 3. DC test: 35 kV for 15 minutes. 4. Insulation resistance test: IR constant to be 50,000 megohms per 1000 feet minimum. 5. Use test procedures given in ICEA S-68-516 and AEIC No. 6. 6. Certified test reports with test data and corona level plots are to be submitted for review prior to shipment. E. Type. 1. Single Conductor. MV-90. 2. Multiconductor. MC -CT. F. Listing. UL 1072. G. Acceptable Manufacturers. Cablec, Okonite, Rome. PART3-EXECUTION Not used. END OF SECTION 16120-3 City of Pearland SBR - Pre -Purchase Documents SECTION 16130 RACEWAYS PART1-GENERAL 1.1 SUMMARY Provide electrical raceway systems. A. Conduit. 1. Rigid metal conduit. 2. PVC -coated rigid metal conduit. 3. Electrical metallic tubing. 4. Rigid nonmetallic conduit. 5. Flexible metal conduit. 6. Liquid -tight flexible metal conduit. B. Wireways. C. Underground Duct Bank is specified in Section 02581. 1.2 REFERENCE STANDARDS A. ANSI C80.1 - Rigid Steel Conduit - Zinc -Coated. B. ANSI C80.4 - Fittings for Rigid Steel Conduit and Electrical Metallic Tubing. C. ANSI/NEMA TC 2 - Electrical Plastic Tubing (EPT) and Conduit (EPC-40 and EPC-80). D. ANSI/UL 1 - Flexible Metal Conduit. E. ANSI/UL 360 - Liquid -tight Flexible Steel Conduit. F. ANSI/UL 467 - Electrical Grounding and Bonding Equipment. G. ANSI/UL 651 - Schedule 40 and 80 Rigid PVC Conduit. H. ANSI/UL 870 - Wireways, Auxiliary Gutters and Associated Fittings. I. NEMA RN 1 - Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit. J. UL 6 - Rigid Metal Conduit. 16130-1 1.3 SUBMITTALS Provide product data on PVC -coated rigid metal conduit. PART2-PRODUCTS 2.1 CONDUIT AND FITTINGS A. Rigid Metal Conduit. 1. Conduit. Rigid hot -dipped galvanized steel (RGS) conduit with zinc -coated threads and an outer coating of zinc chromate 2. Fittings. Threaded steel or malleable iron, either cadmium plated or hot -dipped galvanized. B. PVC -Coated Rigid Metal Conduit. 1. Conduit. Same as rigid metal conduit plus a factory -applied, 40 mil -thick covering of polyvinyl chloride (PVC) bonded to the metal. 2. Fittings. Same as rigid metal conduit fittings plus a factory -applied, 40 mil -thick covering of PVC bonded to the metal. 3. Manufacturers. Rob-roy, OCAL, or approved substitution. 4. Training. Manufacturer shall provide "hands on' training for the General Construction Contractor on proper methods of preparation, installation and touch-up. C. Rigid Nonmetallic Conduit. 1. Conduit. Schedule 40 polyvinyl chloride (PVC). 2. Fittings. Solvent weld socket type. D. Flexible Metal Conduit. 1. Conduit. Spiral -wound, square -locked, hot -dipped galvanized steel strip. 2. Fittings. One -screw and two -screw for 1-1/2 inches and larger, double -clamp steel or malleable iron, either cadmium plated or hot -dipped galvanized. E. Liquid -tight Flexible Steel Conduit. 1. Conduit. Spiral -wound, square -locked, hot -dipped galvanized steel strip plus a bonded outer jacket of PVC. 2. Fittings. Compression type, malleable iron, with insulated throat, either cadmium plated or hot - dipped galvanized. 2.2 WIREWAYS A. Material. Not less than 16-gauge sheet steel. 16130-2 B. Dimensions. Cross section dimensions not less than 4 inches by 4 inches. C. Finish. Not less than two coats of enamel over a rust -inhibiting prime coat. D. Type. 1. Indoors. NEMA 1. 2. Outdoors. NEMA 4X. PART3-EXECUTION 3.1 CONDUIT AND FITTINGS A. Minimum Trade Size. 3/4 inch, except that 3/8-inch flexible metal conduit may be used in lengths not exceeding 72 inches for tap conductors supplying lighting fixtures. B. Types According to Use. Use rigid steel conduit (RGS) throughout except as specified below. 1. Use PVC -coated RGS where exposed to rain, condensation, moisture, constant high humidity or corrosive atmospheres 2. Use RGS in interior walls or ceiling spaces and where exposed when installed more than 8 feet above finished floor in open work areas, mechanical rooms or electrical rooms. Conduit which enters or leaves the top of panelboards or enclosures may be EMT, provided the top of the panelboards or enclosures are a minimum of 5 feet above finished floor and such panelboards and enclosures are located in mechanical or electrical rooms. 3. RGS or rigid nonmetallic conduit 1 inch and smaller may be embedded in slabs if the slab thickness is a minimum of 5 inches thick. Conduit placement shall not impair the slab's structural integrity 4. Use RGS or rigid nonmetallic conduit encased in concrete with minimum 3-inch-thick walls, for feeders or conductors installed below grade at a minimum depth of 18 inches to top of conduit. Concrete encasement may be omitted when conduit is installed below floor slabs. All horizontal to vertical transitions shall be made using RGS elbows and RGS conduit stub -ups. 5. Use direct -buried RGS or rigid nonmetallic conduit for underground branch circuits. Conduit shall be laid directly below a protective red plastic tape labeled with a warning. Tape shall be at least 24 inches below finished grade. All horizontal to vertical transitions shall be made using RGS elbows and RGS conduit stub -ups. For direct buried conduits, provide 3-inch concrete encasement at each paved roadway crossing. 6. Connect all electrical equipment subject to vibration or movement with flexible metal conduit 24 inches minimum length. Provide liquid -tight conduit with proper liquid -tight fittings for exterior locations or in wet areas. Where the equipment is located in a duct or plenum used for environmental air, the length of conduit shall not exceed 4 feet. 7. Transitions. a. Where rigid nonmetallic conduit is used in concrete encasement or under concrete slabs, a conversion to RGS shall be made at least 3 feet before the run exits the encasement or slab cover. 16130-3 b. For below -grade to above -grade outdoor locations, extend concrete encasement around conduit 4 inches above finished grade and slope top away from conduit with a 6-inch-per-foot slope. END OF SECTION 16130-4 City of Pearland SBR - Pre -Purchase Documents SECTION 16222 AC ELECTRIC MOTORS PART1-GENERAL 1.1 SUMMARY A. Equipment. This section specifies general requirements for 1-phase and 3-phase electric motors with NEMA frame machines sized through 200 horsepower Unless otherwise specified, provide motors meeting the basic requirements for general-purpose alternating current motors, as defined in ANSUNEMA MG 1-1.05. B. Unit Responsibility. Motors are furnished under other sections of this specification as a part of the driven equipment. The Vendor is responsible for all coordination between the various components and for the warranty. 1. The motors shall include all necessary appurtenances needed to comply with the enclosure requirements detailed in this specification. This shall include, but not be limited to, filters, filter holders, flanges and fittings. 2. All couplings and base plates shall be supplied by other Divisions unless otherwise indicated. C. Exceptions. Exceptions to this section are indicated in the various sections that specify motor -driven equipment. 1.2 REFERENCE STANDARDS A. ANSUIEEE 117 - Standard Test Procedure for Evaluation of Systems of Insulating Materials for Random Wound AC Electric Machinery. B. ANSUNEMA MG 1 - Motors and Generators. C. ANSUNEMA MG 2 - Safety Standard for Construction and Guide for Selection, Installation and Use of Electric Motors D. ANSI/UL 674 - Electric Motors and Generators for Use in Hazardous (Classified) Locations. E. ANSUUL 1004 - Electric Motors. F. NFPA 70 - National Electrical Code (NEC). 1.3 SUBMI I I ALS A. Provide the following information for each motor: 1. Manufacturer. 2. Rated full load horsepower. 3. Rated volts. 4. Number of phases. 16222-1 5. Frequency in hertz. 6. Full load amperes (FLA). 7. Locked rotor amperes (LRA) at rated voltage or NEMA code letter. 8. Nominal speed at full load (rpm). 9. Service factor. 10. NEMA design letter. 11. NEMA machine type (ODP, WP-I, TEFC, etc.). B. For motors 1 horsepower and larger, include the following additional information: 1. NEMA frame size. 2. NEMA insulation system classification. For motors required to be installed outdoors, include information showing compliance with the intent of paragraph 2.4C 3. Maximum ambient temperature for which motor is designed. 4. Time rating. 5. Bearing type. 6. Efficiency at full load. C. For motors 20 horsepower and larger, include the following additional information: 1. No load amperes. 2. Safe stall time. 3. Efficiency at 1/2 and 3/4 load. 4. Power factor at no load, 1/2, 3/4 and full load. 5. Motor manufacturer's recommended maximum power factor correction capacitor (kvar) that can safely be switched with the motor. 6. Expected value of corrected power factor at no load, 1/2, 3/4 and full load. 7. Full load amperes with corrected power factor. 8. Maximum guaranteed slip at full load. D. For motors with space heaters, include space heater voltage and wattage. 1.4 SPARE PARTS AND CONSUMABLES Provide sufficient quantity of recommended renewable spare parts (gaskets, 0-rings, pins, fasteners, etc.) and consumables (oil grease etc.) as required to support operation and required maintenance for one year. 16222-2 PART2-PRODUCTS 2.1 RATING A. Speed and Size. Speed and approximate horsepower ratings are specified in the driven equipment specification sections Furnish motors sufficiently sized for the particular application and with full -load rating not less than required by the driven equipment at specified capacity. Size motors so as not to overload at any point throughout the normal operating range. B. Voltage. 1. Single phase: 115 volts for 120-volt nominal system voltage. 2. Three phase: 200 volts for 208-volt nominal system voltage. 3. Three phase: 230 volts for 240 volt nominal system voltage. 4. Three phase: 230/460 volts for 240/480-volt nominal system voltage. 5. Three phase: 460 volts for 480-volt nominal system voltage. C. Frequency. 60 hertz. D. Service Factor. According to NEMA MG 1-12.47 but not less than 1.15. E. Acceleration Time. For integral horsepower motors, if the calculated acceleration time of the combined motor and driven load exceeds 3 seconds at 90 percent of rated voltage, request review by the Engineer. F. Safe Stall Time. For integral horsepower motors, if the safe stall time is less than 15 seconds when hot, request review by the Engineer. G. Efficiency Provide energy -efficient motors meeting the requirements of NEMA MG 1-12.55A, Table 12Y and MG 1.41.3. Efficiency to be determined by testing in accordance with NEMA MG 112.53 using IEEE 112A - Method B. 2.2 DESIGN TYPE A. Motors Smaller than 1/6 Horsepower. Provide single-phase squirrel -cage induction motors with integral thermal protectors B. Motors 1/6 through 1/2 Horsepower. Provide single-phase NEMA Design Letter N, squirrel -cage induction motors. C. Motors Larger than 1/2 Horsepower. Provide 3-phase, NEMA Design Letter B, squirrel -cage induction motors. 2.3 MOTOR INSULATION A. Class. Use a Class B insulation system meeting the requirements of NEMA MG 1-1.65 and made of nonhygroscopic materials. B. Temperature Rise. According to NEMA MG 1-12.41 for fractional horsepower motors and NEMA MG 1- 12.42 for integral horsepower motors. 16222-3 C. Outdoor Suitability. Where motors must be suitable for outdoor installation, the insulation must withstand 1 full week (168 hours) of testing in a chamber maintained at 100 percent relative humidity and 40 C ambient temperature. Immediately after the test period, the insulation system must have a minimum resistance of 1.5 megohms. In addition, the inside circumference of the stator and the outside circumference of the rotor and shaft must be coated with the same moisture -resistant insulation. 2.4 LEADS For motor leads, use not less than ASTM B 173, Class G, stranded copper conductors with insulation the same as or better than specified in the preceding Motor Insulation paragraph. Provide permanent identification numbers on leads according to NEMA MG 1-2.02. Use crimp -on, solderless copper terminals on leads and place heat -shrink insulation sleeves or covers between leads and terminals. 2.5 ENCLOSURE A. Indoors. Open drip -proof (ODP). Use steel frame for motors smaller than 3/4 horsepower, and cast-iron frame for motors 3/4 horsepower and larger. B. Outdoors. Use cast-iron frame as follows: 1. Smaller than 100 Horsepower. Totally enclosed, fan cooled (TEFC), with a corrosion -resistant drain plug under each bearing 2. Horizontal 100 Horsepower and Larger. ODP suitable for outdoor use. For cooling towers supply TEFC motors as described above. 3. Vertical Motors. a. Weather -protected Type I (WP-I). b. For 300 hp and larger, use WP-II. For all other sizes, use TEFC. C. Hazardous Areas. Provide cast-iron frame motors suitable for use in the classified area. 2.6 BEARINGS A. Motors Smaller than 1/6 Horsepower. Motor manufacturer's standard bearing is acceptable. B. Motors 1/6 Horsepower and Larger. 1. Antifriction. Supply motors with grease -lubricated antifriction ball bearings conservatively rated for long life under the total radial and thrust loads produced by the actual combination of motor -driven equipment. Provide each motor with suitable lubrication fittings and pressure relief devices suitable for in- service lubrication 2. Oil Lubricated. If the driven equipment section specifies oil -lubricated bearings for motors, include a suitable sight gauge on each bearing with maximum and minimum levels clearly indicated. 2.7 HARDWARE Use structural bolts, washers, nuts, pins, and similar items manufactured of high -strength steel. Use only hexagon - head bolts and hexagon nuts. Use corrosion -resistant materials or protect hardware from corrosion by either hot -dip galvanizing, chrome plating or cadmium plating. 16222-4 2.8 NAMEPLATES A. Main Nameplate. Provide each motor with a stainless steel nameplate meeting the requirements of NEMA MG 1-10.38 and the National Electrical Code, Section 430-7. Eneigy-efficient motors shall be identified in accordance with MG-1-12.54 2. B. Heater Nameplate. When space heaters are furnished, include voltage and wattage on a suitable nameplate. C. Bearings Nameplate. When bearings are oil lubricated, include oil type information on a suitable nameplate. Also, indicate bearing data if nonstandard D. Attachment. Attach the nameplates to the motor with stainless steel fastening pins or screws. 2.9 CONDUIT BOX For each motor not supplied with a cord and plug, provide a conduit box suitably sized for the motor lead terminations in accordance with the National Electrical Code, Section 430-12. Include a grounding lug for motors 1/6 horsepower and larger. Supply a gasket suitable for the motor enclosure type and application. 2.10 SPACE HEATERS Provide space heaters on motors located outdoors or when specified in the driven equipment section. Use heaters hermetically sealed in stainless steel or equivalent corrosion -resistant sheaths. Rate heaters 115 volts, 60 hertz. Braze heat -resistant insulated leads to the heater and extend to the conduit box. Size heaters according to the motor frame size as follows: Frame Number Series Minimum Watts Less than 280 280 - 320 360 - 400 440 Not required 100 150 200 Correspond'ng HP at 1800 SRPM 25 - 50 60 - 125 150 - 200 2.11 PAINT Manufacturer's standard shop paints for prime and finish coats are acceptable. 2.12 NOISE Provide integral horsepower motors with overall sound power levels meeting the requirements of MG 1-12.49. PART3-EXECUTION Not used. END OF SECTION 16222-5 DATE SHEET OF MOTOR TEST REPORT PROJECT NAME PROJECT NO. MOTOR MANUFACTURER MOTOR DESIGNATION , LOCATION HP , FLA , LRA , NOMINAL VOLTAGE INSULATION CLASS SERVED FROM PANEL/MCC MEASURED CONDITIONS TEMPERATURE• °F RELATIVE HUMIDITY: % CURRENT (AMPS): OA , OB , OC VOLTAGE (VOLTS): OAB , OBC , OCA OAN ,OBN ,OCN INSULATION RESISTANCE: OAB , OBC , OCA 0A-GND , oB-GND , 0C-GND STARTING TIME: SECONDS, SAT UNSAT VIBRATION: SAT UNSAT BEARING TEMPERATURE• SAT UNSAT 16222-6 Item Pearland, Texas Far Northwest Environmental Center WWTP SBR Selection Criteria Form Quantity Unit Project Cost Factors Bid price of SBR $ L S Projected (Including annual blowers, average sludge power pumps, usage of SBR etc.) @ design flow kwh decanters Projected equipment operations and maintenance costs for SBR units and $ monthly Peak decant flow rate gpm Basin Dimensions — Equipment Proximity of Vendor maintenance facility and personnel from plant site Miles Process Engineering Support Staff Ph.D M.S. B.S. Non -Engineering Support Staff B.S or higher Peak Flow Management (cycle time at peak flow) Minutes Process Guarantee Years Installations Number of true batch SBR's systems in U.S. in operation Number of municipal systems in operation for 5 or more years * This is not a complete list of information to be submitted with the proposal or to be used in the SBR selection process. See the specifications for additional required information. / J / 150' BUFFER / / / 150' SUFFER / —/ / UV DISIfFECTION % \ PH 4 PH 3 PH 2 FILTER BASI N ��z� Off. \ Gatti OF 7s.1 \ \\ 12 r a . j .a f �, 1 I DENNIS KEYESel 'B¢ -9' 7 i 4.3 - ;; :=r tt(14f`fi .-C/ 'T , .�•0.+ f/Zt://p/ PH 4 PH 3 PH 2 DIGESTER BASINS BLOWER -SLUDGE DEWATERING BLDG PH 2 PH 4 1 Ll L I CELL 2 EOUEA4y1hG NBATCH1;'frA+`TQ4 ELL< ,ELL EADWORKS PH 1&2 L PH 3 PH 3&4 OVERALL SITE PLAN 1, SCALE: I" = 80 -0" 7 ON-SI TE LIFT STATION 0) -11 1 1 .11 1 / / 1 1 1 1 I 1 21 CO 0 0 0 a 0 SUBSIDIARY Z w 2 0 0 F- 0 IA al �Q F-DQ OD zCC w Q a_ LL cc m f~ DRAWN 8Y: CHECKED BY: APPROVED 9Y: i m L 8 a a 0 0 ac o 0 Sheet Number Sit OF PROJECT NO: 0 EL co cri 0 0 01. 1.0 0 01 0 CI Exhibit 1 Alternate Bid Scope of Supply AquaSBR Influent Valves 4 Influent valve(s) will be provided as follows: - 20 inch diameter DeZURIK PEC electrically operated eccentric plug valve(s) with 125# flanged end connection, ASTM A-126 Class B cast iron body with welded in nickel seat, neoprene coated cast iron plug, assembled and tested with a Limitorque L120 three phase open/close service electric actuator. Valve actuator includes compartment heater. Mixers 4 AquaDDM Direct Drive Mixer(s) will be provided as follows: - 15 HP Aqua -Aerobic Systems Endura Series Model FSS DDM Mixer(s). Motor base and float volute will be 304 stainless steel. Float will be fiber -reinforced polyester skin (FRP) filled with closed cell polyurethane foam. Intake volute will be 304 stainless steel Impeller will be 316 stainless steel and one-piece impeller shaft will be 17-4 PH stainless steel. The entire rotating assembly is dynamically balanced. Motor will be TEFC, three phase, 60 hertz, 900 RPM with 1.15 service factor and Class F nonhygroscopic insulation. Motor will be rated suitable for severe chemical duty. Mixer Mooring 4 Mixer Cable Mooring System(s) consisting of: - #10 AWG four -conductor electrical service cable(s). - Vinyl electrical cable float(s). - Electrical cable strain relief grip(s), 2 eye, wire mesh. - 7x19x1/4" 304 stainless steel mooring cable. - Maintenance mooring cable loop(s) - 5' 304 stainless steel extension spring(s). - 1/2" stainless steel eyebolt assembly(s). - 1/4" 316 stainless steel wire rope thimble(s). - 3/8" diameter 316 stainless steel quick disconnect snaphook(s). Decanters 4 Decanter Assembly(ies) consisting of: - 10x9 Aqua -Aerobics decanter(s) with fiberglass float, 304 stainless steel weir, galvanized restrained mooring frame, and painted steel power section with #16-8 conductor power cable wired into a NEMA 4X stainless steel junction box with terminal strips for the single phase 60 hertz actuator and limit switches. - Schedule SDR 26 PVC rigid discharge pipe complete with Vanstone flange. - 18 inch diameter 90 degree 304 stainless steel elbow. - 18 inch gasket kit(s). - 18 inch diameter 304 stainless steel flanged flexible joints. - Galvanized steel pipe saddle support assembly. - 1/2' 304 stainless steel adhesive anchors - 4" Schedule 40 galvanized steel mooring post. - Galvanized steel dewatering support post(s). - Galvanized steel top mooring post supports - Galvanized steel bottom mooring post supports. 4 Effluent valves will be provided as follows: - 18 inch diameter electrically operated butterfly valve(s). Valve will be opewrated as "Bump -And -Seek' and controlled by the SBR control panel PLC utilizing a 4 20 mA signal from the flow meter provided by others. Position feedback will be provided utilizing a 4-20 MA signal from the valve. Valve will be a DeZunk BAW AWWA C504 Class 150B butterfly valve with ANSI Class 125 flanged end ASTM A-126 Class B cast iron body, EPDM seat, cast iron disk with 316 stainless steel edge, 304 stainless steel shaft assembled and tested with a Limitorque LY3001 three phase open/close service electric actuator Valve actuator includes compartment heater. Page1 of7 Revised 6/29/01 Transfer PumpsNalves 4 Submersible pump assembly(ies) consisting of the following items: ▪ Flygt Model CP-3085, 3 HP, 3 phase, 60 cycle submersible pump(s) with painted cast iron pump housing, 4 inch diameter discharge elbow and multi -conductor electrical cable. - 4 inch diameter DeZunk PEC manual eccentric plug valve(s) with cast iron body, welded nickel seat, flanged end style, neoprene resilient plug facing, stainless steel bearings, and lever operator. - 4 inch diameter Nibco F-918-B check valve(s) with cast iron body with bronze disk. - Set(s), 2 inch diameter galvanized steel slide rails - 304 stainless steel adhesive anchors. - Galvanized lifting chain(s). - Galvanized steel upper guide bar bracket(s). - 304 stainless steel intermediate support(s). - 4" galvanized steel in basin discharge piping. Retrievable Fine Bubble Diffusers 28 Retrievable Fine Bubble diffuser assembly(ies) consisting of: - 25 diffuser tubes consisting of two flexible EPDM porous membrane sheaths mounted on a rigid polypropylene support pipe with 304 stainless steel band clamps. - 304 stainless steel 4" square diffuser manifold weldment. - 304 stainless steel frame assembly. - Galvanized steel vertical air column and track/beam assembly. - 3" wire reinforced EPDM flexible air line with aluminum/polypropylene quick disconnect end fittings, galvanized steel threaded flange and polypropylene quick disconnect adapter. - 3" Keystone AR-1 manual isolation butterfly valve with cast iron body, EPDM seat, aluminum bronze disk and one-piece steel shaft. - Galvanized steel diffuser hoist assembly with base socket for receiving a portable electric winch. - 304 stainless steel adhesive anchors. - Galvanized steel intermediate support(s). 1 Diffuser electric winch(es) will be provided as follows: - Portable electric winch with 8 feet of electrical cable for connection to single phase, 60 hertz power supply. Power supply and electrical wiring for winch is to be provided by the purchaser. Positive Displacement Blowers 3 Positive displacement Blower Package(s), with each package consisting of: - Roots 721J Positive Displacement Blower Package with common base, V-belt drive, enclosed drive guard, pressure gauge, pressure relief valve, vibration pads, and blower oil for initial operation. - 8 inch Discharge Accessory package consisting of a Discharge Silencer, Technocheck check valve, Keystone AR-1 manual butterfly isolation valve, and flexible discharge connector. - 10 inch Inlet Accessory package consisting of a Inlet Filter and Inlet Silencer. - 200 HP U S. Electric Totally Enclosed Fan Cooled, 3 phase, 60 hertz motor with slide base. ▪ 304 stainless steel anchors. Air Valves 4 Air Control valve(s) will be provided as follows: - 10 inch DeZurik BAW AWWA C-504 Class 150E electrically operated butterfly valve(s) with ANSI Class 125 flanged end ASTM A-126 Class B cast iron body, EPDM seat, cast iron disk with 316 stainless steel edge, 304 stainless steel shaft assembled and tested with a Limitorque LY2001, 115 VAC, 60 hertz, single phase open/close service electric actuator. Valve actuator includes compartment heater. Level Sensor Assemblies 4 Pressure Transducer Assembly(ies) consisting of: • Keller PSI Model 700 stainless steel submersible pressure transducer(s) with 35 feet of attached two wire, 24 gauge polyethylene shielded cable • 4-inch diameter schedule 80 PVC stilling tube(s). - 304 stainless steel stilling tube mounting bracket(s). • High water level float switch Page 2 of 7 Revised 6/29/01 Instrumentation 4 Dissolved Oxygen Assembly(ies) consisting of: • WTW Model OXI 170 T Dissolved Oxygen Analyzer(s) with dual 4 20 mA DC outputs in a 1 P66 ABS enclosure suitable for handrail mounting. - WTW Trioxmatic Model 700-7 Dissolved Oxygen Sensor(s) with 15 meters of cable and connector plug. - Handrail mounting kit(s). - ABS pipes. Controls Controls wo/Starters 1 The following Controls will be provided as follows: - NEMA 12 panel enclosure suitable for indoor installation and constructed of painted steel. - Panel will be UL listed and labeled. - Selector switch(es) - Pilot light(s). - Koyo DirectLogic DL440 integral programmable controller. - Input card(s). - Output card(s). - GFI convenience outlet(s) with cover. - Analog input card(s) - Islatrol 115V line filter - EXOR UniOP MKDR25 display Engineering Engineering 6 Set(s) Documentation will be provided as described: - Operation & Maintenance Manuals (English language). 6 Set(s) Documentation will be provided as described: - Engineer's Approval Data (English language). Supervision/Freight Supervision/Freight Domestic 1 Supervision Services and Freight Package(s) will be provided as follows: - 4 Day(s) On Site for INSTALLATION SUPERVISION ▪ 1 Trip(s) for INSTALLATION SUPERVISION - 4 Day(s) On Site for MECHANICAL SUPERVISION ▪ 1 Trip(s) for MECHANICAL SUPERVISION ▪ 4 Day(s) On Site for ELECTRICAL SUPERVISION - 1 Trip(s) for ELECTRICAL SUPERVISION • FREIGHT TO JOBSITE The Following Notes Apply to Aqua -Aerobic Systems' Proposal: - This proposal is being provided to meet the process intent of the specification only. The materials of construction are Aqua -Aerobic Systems' standard and does not include any upgrades or extra's as specified - Materials and Services not specifically described/itemized in this proposal are not included in the quoted total price, and are to be supplied by the •installing contractor/purchaser. • Aqua -Aerobic Systems' Notated Drawings are an integral part of this proposal. • Aqua -Aerobic Systems' Design Number 12718 and Design Notes dated 02/21/01 are an integral part of this proposal. • Blower discharge manifold and piping losses are assumed at 0.5 PSI from the termination flange of the blower to the retrievable fine bubble diffuser assembly isolation butterfly valve. Engineer to verify actual piping losses do not exceed the above. Inlet losses are assumed at 0.25 PSI for inlet silencer and a clean filter No inlet losses have been assumed for inlet filter piping, and it is assumed that the filter is located on each blower package. Decanter hydraulics are to be verified by the purchaser and/or purchaser's consulting engineer. Page 3 of 7 Revised 6/29/01 - All handrailing adjacent to the retrievable fine bubble diffuser assembly(s) must have a minimum of a two foot opening (one foot on each side of the centerline of each diffuser rack beam) to clear each diffuser's winch assembly. All handrailing to each side of the diffuser racks must be removable to allow for pivoting of each diffuser rack to the maintenance position. - Valve and line sizes are to be verified by the engineer based on actual line losses. • Aqua -Aerobic System's proposal is based upon supply of equipment models noted in this proposal If equipment shipment date is critical, models may be revised to meet the required shipping date. The Following Aqua -Aerobic Equipment Terminations apply: • Electrical cables provided by Aqua -Aerobic Systems, as stated in our proposal, will terminate at the basin wall. Attachment of cables, supply of junction box/disconnects, local controls, at the basin wall, field wiring, and conduit, are the responsibility of the installing contractor/purchaser. - All piping supports, gaskets, and hardware beyond Aqua -Aerobic Systems' equipment terminations are to be supplied by the installing contractor/purchaser. - Aqua -Aerobic Systems piping is limited to in basin piping only. All other piping is provided by the installing contractor. - Freeze protection may be required for outdoor installation in cold weather climates. All such protection including but not limited to, heat tracing and insulation of pumps and piping, as well as protection against internal tank freezing, shall be provided and installed by the installing contractor. - Electrical wiring, receiving flanges, junction box/disconnect, gaskets, local controls, and hardware for electrically operated valves are to be supplied by the installing contractor/purchaser. Valves will be supplied loose for installation in the piping by the installing contractor/purchaser. Valve vault with drain (if applicable) and/or provisions for valve access are to be provided by the installing contractor/purchaser - Mooring posts provided by Aqua -Aerobic Systems are to be filled with concrete by the installing contractor/purchaser. - Installation and field wiring of the control panel is to be supplied by the installing contractor/purchaser. - Motor starters and MCC (Motor Control Center) are to be supplied by the installing contractor/purchaser. The electrical components provided by Aqua will be provided with the following electrical characteristics: - Single phase motors will be 115 volt. - Three phase motors will be 460 volt The Following Commercial Notes and Terms And Conditions Apply to Aqua -Aerobic Systems' Proposal: - All prices quoted are FOB Shipping Point. - State and/or local taxes are not included in the price but will be charged unless we receive a valid resale/exemption certificate. - Payable 90% Net 30 days from date of each shipment, balance of 10% payable upon acceptance. Acceptance not to exceed 90 days from date of each shipment. This offer and all of the products and sales of Aqua -Aerobic Systems, Inc. are subject only to the following terms and conditions. Any terms and conditions in any order, which are in addition to or inconsistent with the following, shall not be binding upon Aqua -Aerobic Systems, Inc. The obligation of Aqua -Aerobic Systems Inc. and the following terms and conditions shall be governed by and construed according to the laws of the State of Illinois. TERMS Please note: Unless otherwise noted, quoted terms are Net 30 Days from shipping date. Past -due charges are 1.5% per month and will apply on any past -due balance. Aqua -Aerobic Systems, Inc. does not allow retainage of any invoice amount, unless authorized in writing by an officer of our Rockford, Illinois office. DURATION OF QUOTATION All quotations, whether from a published price list or a'specific quotation made by Aqua -Aerobic. Systems, Inc. shall be effective for one year after the date of execution of this agreement. Page4of7 Revised 6/29/01 DELIVERY S hipping dates are not a guarantee of a particular day of shipment and are approximate, being based upon present production information, and are subject to change per the production schedules existing at time of receipt of purchase order. Aqua -Aerobic Systems, Inc shall not be responsible for any delay in shipment for causes beyond its control including, but not limited to, war, riots, strikes, labor trouble causing interruption of work, fires, modification of order, any act of governmental priorities or acts of •God. Quoted delivery dates on the proposal are approximate dates equipment will be shipped and, unless agreed to in writing by an authorized officer of Aqua -Aerobic Systems, Inc., Aqua -Aerobic Systems, Inc. will not allow purchaser to delay shipment of our goods from our plant or from our supplier's plants when drop shipments of their goods is involved. RISK OF LOSS U nless specifically stated otherwise, all shipments are F.O.B. Shipping Point. All goods are at risk of purchaser from and after delivery to carrier. TAXES Prices quoted do not include any taxes. Purchaser shall pay as a part of the purchase price any and all use, sales, privilege or other tax levied with respect to the goods under any federal, state or local law. If Aqua -Aerobic Systems, Inc. is required by any taxing authority to collect or pay any such tax, purchaser may be separately billed at any such time for the amounts Aqua -Aerobic Systems, Inc is required to pay. S ECURITY AND TITLE TO GOODS Title to the goods and products sold hereunder shall be retained by Aqua -Aerobic Systems, Inc. and shall not pass to a purchaser until payment in full is received by Aqua -Aerobic Systems, Inc. of the entire purchase price plus any extra or additional charges agreed upon. By acceptance of the proposal of Aqua -Aerobic Systems, Inc., purchaser agrees to execute any and all financing statements and any and all other documents, requested by Aqua -Aerobic Systems, Inc. to protect the interest of Aqua -Aerobic Systems, Inc. against the claims of any third parties in and to said goods and products. Purchaser agrees that there shall be no claim, right, title, lien or interest of any third party in and to the goods and products sold by Aqua -Aerobic Systems, Inc. to purchaser until payment in full is made to Aqua -Aerobic Systems, Inc of the purchase price plus any extras, or additional charges agreed upon If at any time the financial responsibility of the purchaser becomes unsatisfactory to Aqua -Aerobic Systems, Inc. or Aqua -Aerobic Systems, Inc. otherwise deems itself insecure as to receipt of the full payment of purchase price from purchaser, Aqua -Aerobic Systems, Inc. reserves the right to require payment in advance or security or guarantee satisfactory to Aqua -Aerobic Systems, Inc. of payment in full of the purchase price. LIMITATION OF ACTION N o action shall be brought against Aqua -Aerobic Systems, Inc. for any breach of its contract of sale more than four years after the accrual of the cause of action thereof, and, in no event unless the purchaser shall first have given written notice to Aqua -Aerobic Systems, Inc. of any claim of breach of contract within 30 days after the discovery thereof. Any breach of contract for which proper notice has been provided must be acted upon by Aqua -Aerobic Systems, Inc, within sixty (60) days of receipt of written notice of breach. CANCELLATION CLAUSE N o accepted purchase order may be modified except:by written consent:of .Aqua -Aerobic Systems, Inc. nor may it be cancelled except by prior payment to Aqua -Aerobic Systems, Inc. the following sums as liquidated darnages:therefore: If cancellation is after the commencement of production or after the assumption of any obl gations by Aqua-Aerbico Systems Inc. for any materials or component parts, a sum equal to the total of the direct out-of-pocketexpenses incurred to the date of cancellation for labor, machine time, materials and any charges made to us by suppliers'for cancellation. All charges and expenses shall be as determined by Aqua -Aerobic Systems Inc In the event any items are used by Aqua Aerobic Systems, Inc. to fill a subsequent order then upon receipt of payment for such order, Aqua-Aerob c Systems, Inc. shall pay thepurchaser a sum equal tothe direct out-of-pocket expensespreviously charged and received from purchaser. PRODUCT ACCEPTANCE U nder no circumstances will Aqua -Aerobic Systems, Inc be liable or responsible with respect to any claims, charges or backcharges related to any refusal of any party to accept our products, parts or materials as non -conforming or not satisfying plans and/or specifications when descriptive data and/or drawings for those products parts or materials are submitted to reviewing parties prior to shipment and those same descriptive data drawings and materials are approved by Page 5 of 7 Revised 6/29/01 the reviewing parties. When proposals by Aqua -Aerobic Systems, Inc. result in the recipient, or their appointed agent, accepting the proposal or issuing a purchase order for the same and when the proposal acceptance or purchase order is subject to customer and/or engineer approval and in the event any reviewing party rejects the approval submittal materials, Aqua -Aerobic Systems, Inc. solelyupon its option, may choose to modify the approval submittal data to meet necessary conditions to gain acceptance. ` Delay of approval submittal information by the contractor, engineer or customer beyond 60 days from date of submittal by Aqua -Aerobic Systems, Inc. may result in escalation of prices stated in the proposal. When no approval drawings or submittals are required, or where the requirement for approval drawings or submittals is waived, then Aqua -Aerobic Systems, Inc. will be responsible only for furnishing our products, parts or materials as presented in quantity and type on face of order acknowledgment sent to the customer. Any discrepancies with acknowledged order and descriptive items and quantities described therein must be reported to Aqua -Aerobic Systems, Inc. in writing within ten (10) days after date on face of order acknowledgment. WARRANTY LIMITATION OF LIABILITY AND DISCLAIMER In return for purchase and full payment for Aqua -Aerobic Systems, Inc. products, we warrant each new product manufactured by us to be free from defects in materials and workmanship under normal conditions and use for a period of o ne year from the date the product is put into service, or eighteen months from date of shipment (whichever first occurs). OUR OBLIGATION UNDER THIS WARRANTY IS EXPRESSLY AND EXCLUSIVELY LIMITED to replacing or repairing (at our factory at Rockford, Illinois) any part or parts returned to our factory with transportation charges prepaid, and which o ur examination shall show to have been defective. Prior to return of any product or its parts to our factory, purchaser shall notify Aqua -Aerobic Systems, Inc. of claimed defect, and Aqua -Aerobic Systems, Inc. shall have the privilege of examining the product at purchaser's place of business. In the event this examination discloses no defect, purchaser shall have no authority to return the product or parts to our factory for the further examination or repair. All products or parts shall be returned to purchaser, F.O.B Rockford, Illinois. This warranty shall not apply to any product or part which has been repaired or altered outside our factory or applied, operated or installed contrary to our instruction, or subjected to misuse, negligence or accident. Our warranty on accessories and component parts not manufactured by us is expressly limited to that of the manufacturer thereof. THE FOREGOING WARRANTY IS MADE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, AND OF ALL OTHER LIABILITIES AND OBLIGATIONS ON OUR PART, INCLUDING ANY LIABILITY FOR NEGLIGENCE, STRICT LIABILITY, OR OTHERWISE; AND ANY IMPLIED WARRANTY OR MERCHANTABILITY OF FITNESS FOR A PARTICULAR PURPOSE IS EXPRESSLY DISCLAIMED AND WE EXPRESSLY DENY THE RIGHT OF ANY OTHER PERSON TO INCUR OR ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF ANY P RODUCT MANUFACTURED BY US. U NDER NO CIRCUMSTANCES, INCLUDING ANY CLAIM OF NEGLIGENCE, STRICT LIABILITY, OR OTHERWISE, S HALL WE BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES COSTS OF CONNECTING, DISCONNECTING OR ANY LOSS OR DAMAGE RESULTING FROM A DEFECT IN THE PRODUCT LIMIT OF LIABILITY AQUA -AEROBIC SYSTEMS', INC. TOTAL LIABILITY UNDER THE ABOVE WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT OF ANY DEFECTIVE PART. THE REMEDIES SET FORTH HEREIN ARE EXCLUSIVE, AND OUR LIABILITY WITH RESPECT TO ANY CONTRACT OR SALE, OR ANYTHING DONE IN CONNECTION THEREWITH, WHETHER IN CONTRACT, IN TORT, UNDER ANY WARRANTY, OR OTHERWISE, S HALL NOT, IN ANY CASE, EXCEED THE PRICE OF THE PRODUCTS UPON WHICH SUCH LIABILITY IS BASED. Final acceptance of this; proposal must be given to Aqua -Aerobic Systems, Inc. at their office in Rockford, Illinois. Please acknowledge acceptance by signing the proposal and returning it to Aqua -Aerobic Systems, Inc. Page 6 of 7 Revised 6/29/01 Exhibit 2 Modifications to the Alternate Bid Scope of Supply Price Adder #1: Provide Stainless Steel materials of construction for each of the sludge pump assemblies (4 total) and SS air columns with each retrievable fine bubble diffuser. This includes, SS sludge pump slide rails in lieu of galvanized, 316 SS anchors in lieu of 304SS, 304SS intermediate supports in lieu of galvanized supports, 304SS chain in lieu of galvanized chain, 304 S S upper guide bar brackets in lieu of galvanized brackets and finally the in basin piping will also be 304 SS in lieu of galvanized The square air supply columns for each diffuser assembly (28 total) will be 304 SS in lieu of galvanized. Please note the beam track assembly, intermediate supports and hoist assemblies will be galvanized. The price adder associated with the above changes is $27,107. P rices Deduct: S upplying three (3) 200 HP blowers in lieu of (5) 100 HP blowers for the Alternate Bid will represent a price deduct of $1,502. Clarifications to Exhibit 1 Commercial Terms: 1.) Reference: Section 00100 Instruction to Bidders,17.0 Assignment Of Equipment Section 00300 Form of Proposal, 2 0 Contract Time Section 00400 Form of Agreement Between Vendor and The City of Pearland Assignment of contract. Aqua's Clarification Aqua -Aerobics agrees to enter into a contract with the General Construction Contractor within fourteen (14) days after receipt of Purchase Order from the General Construction Contractor provided: 1) the General Construction Contractor's contract requires him to provide the Owner with a Payment And Performance bond for 100% of his contract price for construction of the Wastewater Treatment Plant, 2) that the General Construction Contractor has as satisfactory credit rating, and 3) the terms and conditions of the contract are as defined in the contract and additional terms and conditions imposed by the General Construction Contractors purchase order are not binding upon Aqua -Aerobics. 2.) Reference: Section 00100 Instruction to Bidders, 3.0 Award of Contract Section 00100 Instructions to Bidders, 10.0 Bonds, B & C Section 00620, Sequencing Batch Reactor (SBR) Equipment & Performance Bond Section 11100 SBR Equipment 1.7 Guarantees Each bid submitted shall be deemed a commitment by the bidder to honor his bid for a period of one (1) year from the date that the bids are awarded, and if the Owner elects to have a contract awarded to a General Construction Contractor within said one (1) year period the bidder shall be obligated to enter into a contract with the General Construction Contractor in accordance with the terms of such bid, and give such bonds as are specified in the bidding document. Aqua's Clarification Aqua -Aerobic Systems will provide a Performance bond to the Owner which will guarantee we will enter into a Contract with the General Construction Contractor without increasing the price based upon the current scope of supply (changes to Aqua -Aerobic Systems' scope of supply are subject to a price revision). This bond will be satisfied once equipment has been delivered and accepted by the Owner Page 1 of 3 Revised 6/29/01 6.) Reference: Section 00800 Special Conditions, 9. Equipment Warranty Section 00810 Affidavit Of Guarantee 00800.A. A maintenance and performance bond is required in Section 00620. The Vendor shall also warranty by providing the Affidavit of Guarantee that all equipment furnished hereunder is of first class material and workmanship, complies in all respects with the design and specifications of these documents, and contains no defect of material or workmanship. In the event of failure of any part or parts of the equipment during the first year of service, provided that the equipment has been operated in accordance with its intended use, the affected part or parts shall be replaced promptly upon notice by the e Owner through the General Construction Contractor. Replacement, under this item, of defective parts with new parts shall be performed at no cost to the General Construction Contractor for parts or shipping. Cost for labor and installation shall also be borne by the Vendor. B. The first year of service shall be interpreted as the twelve-month period following Substantial Completion (the start of actual operating use of the equipment, exclusive of the time for installation, testing, adjusting, etc.), during the construction period and prior to final acceptance of the project by the Owner from the General Construction \ Contractor. Aqua's Clarification In paragraph 00800.9.A, revise "intended use" to "specified use" in the third sentence. In lieu of the specified warranty, Aqua -Aerobic Systems' warranty will be as stated on the Warranty Limitation Of Liability And Disclaimer included with our Proposal No. 12718 dated 2/22/01. 7.) Reference: Section 01340 Shop Drawings, Product Data And Samples 1.2 Requirements A. ...The Engineer will review submittals and may add additional products, materials and equipment to the list. Aqua's Clarification Items added or removed by Engineer to or from Aqua -Aerobic Systems' scope of supply during the submittal review stage may be subject to a price revision. 8.) Reference: Section 11100 Sequencing Batch Reactor (SBR) Equipment , 1.7 Guarantees The supplier shall submit a bonded process maintenance and performance guarantee, Sequencing Batch Reactor (SBR) Equipment Maintenance and Performance Bond. This bond will guarantee the performance of the SBR system. If the system does not perform as required in this specification, the supplier will take action to correct any problems with the system, including if necessary, converting the SBR system to a nitrification or extended aeration system utilizing the SBR tanks and construction of final clarifiers. Aqua's Clarification In lieu of the guarantee specified herein, Aqua -Aerobic Systems will provide a Process Performance Bond in the amount of 100% of the equipment/services price provided by Aqua. The bond will be surety for the process performance guarantee provided by Aqua. In lieu of providing the bond at time of PO receipt from the General Installation Contractor, the two year process performance bond will be provided at time of completion of the acceptance test(s) specified under 00620 3.C.10. In lieu of conversion of the SBR system to a nitrification or extended aeration system utilizing the SBR tanks and construction of final clarifiers, Aqua -Aerobic Systems' total guarantee liability is limited to the value of the bond provided by Aqua -Aerobics. Page 3 of 3 Revised 6/29/01