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Home My WebLink AboutContract 42205-CO1,J DISTRIBUTION: WHITE-Fll..E CANARY -CONSTRUCTION FILE PINK -PROJECT MANAGER GOLDENROD-CONTRACTOR CITY OF FORT WORTH CHANGE ORDER REQUEST CITY SECRETARY CONTRACT NO. 41.1.QS~ CO) CHANGE ORDER NO . I I DATE : 11/21 /11 I D .O .E . NO. I PROJECT NO . wrR-2010-200051 PROJECT DESCRIPTION: Riverside Wastewater Treatment Plant Digester Sludge Treatment, Removal, and Disposal Project I CITY SECRET ARY CONTRACT NO. 42205 ORIGINAL CONTRACT AMOUNT ........................................ . ············ $ ---~$=5=2=5=5,=04~0=.0=0 EXTRAS TO DATE ............................................................ S ______ ----"'$"'0.=00 CREDITS TO DA TE .................. . ................•....... s ______ ----"'s=o.=oo CONTRACT COST TO DA TE .......... . . .................................... $. ___ _,$""5'""2""5""5,.,,0:,;40e...OO= AMOUNT OF PROPOSED CHANGE ORDER . ....................................... s. _____ _:-.,._s1,.,6,,.2""'.oo"'" REVISED CONTRACT AMOUNT .............. . .............................. S ___ _,$""5'""2""5"'-4.,,2.,_,78e...OO= ORIGINAL FUNDS AVAILABLE FOR CHANGE ORDERS ............................................... . . ........................ $ _____ __,$.,,0,,.0""-0 ADDITIONAL fUNDING (IF NECESSARY) ............................................................................ . ...s _______ --'-0"-- REMAINING FUNDS AVAILABLE FOR CHANGE ORDER ....... . ......... s ______ ,.,,so,...o,,.,,o IN ACCORDANCE WITH nns CHANGE ORDER, THE CONTRACTOR SHALL: As described in proposal and supporting documenting submitted to City by AUI on November 9-10, 2011 (see Attachment I), implement the use of belt press technology to remove, handle, and process sludge for disposal for the purpose of removing moisture from sludge which will reduce both actual sludge quantity and the amount of fly ash required to stabilize sludge. Contractor shall be responsible for ensuring that contaminated solid or aqueous-phase sludge does not contaminate work areas during operation of belt press equipment. Contractor shall also be responsible for decontaminating/disposing of belt press and associated equipment at the conclusion of the project. All liquids generated by belt press operations shall be processed through Liquids Treatment Processing Facility per Specification 02218. Processed sludge must meet requirements for classification as a TSCA-regulated nonhazardous waste . If belt press process results in sludge that has difficulty meeting nonhazardous waste classification requ irements, Contractor shall revert to original sludge handling and processing methods described in Specification Section 02218 at no additional cost to City. Contract quantities and unit costs are revi ed pe r thi change order as shown in Table i tdttached). M/WBE partic ipation goal for the project remains unchanged at 13. 00%. TOTAL COST FOR CHANGE ORDER NUMBER This project is complete. It i1 understood and aareed that the acceptance of this Change Order by the contractor con1titutc1 an accord and satisfaction and represents pa yment in full (both in time and money) for all c osts arisin1 out of, or incidental to, the Change Order . ORIGINAL CONTitACT TIME 180 days CONTitACTOR ADDmONAL APPROVED TIME TO DATE Odays DATE APPROVED CONTitACT TIME TO DA TE 0 days FIELD ENGINEE R -$ 762.00 ADDmONAL TIME FOR nns CHANGE ORDER 30 days Tony Bosecker, P .E., Freese and Nichols, Inc. DIRECTOR/MANAGING DEPT. DATE CITY AITORNEV 4055 lntematlonal Plaza, Suite 200 • Fort Worth, Texas 76109 • 817-735-7300 • fax 817-735-7491 • www.freese.com November 17, 2011 Mr. Richard Talley . Regulatory/Environmental Coordinator City of Fort Worth Water Department P. 0. Box 870 Fort Worth, Texas 76101-0870 Re: City of Fort Worth Riverside Wastewater Treatment Plan Digester Sludge Treatment, Removal, and Disposal Project FNI Project No. FTWl 1231 Change Order Request No. l(C0-01) Dear Mr. Talley: Enclosed please find a copy of Change Order No. 1 for work to be performed by AUI Contractors, Inc. on the above referenced project. This change order reduces the overall contract value by $762.00 to $5,254,278.00. The purpose of this change order is to implement the use of belt press equipment into the sludge handling process in order to significantly reduce the quantity of fly ash required to stabilize sludge and the total volume of stabilized sludge that will require · transportation and disposal. Use of this method could potentially result in significant cost savings for the project that would be realized if the revised contract quantities are below budget at the end of the project. Sincerely, Robert W. Chambers, P.G. Principal Enclosure cc: File FTW 11231\C:\Usersldmh\AppDatallocal\Mlcrosoft\Windows\ Temporary Internet Files\Content.Outlook\FU 191 SPO\Change Order No 1 Submittal Letter.doc •, , N ' Table 1 Riverside WWTP Disgester Sludge Treatment, Removal, and Disposal Project Change Order No. 01 Current Contract Rev,sed Per Change Order Di ._,1 r1pt1011 Quantity Unit Un,t Prier> Total Oua11t1t; UrHt Ur1tt Price Tot.ii 01ffer<cnc.e --•~mm11111111m~llmiEiiilmm11111BIIIIIlE':D~ 20 Solid Sludge Mixing, Slabilization, & Excavation 8 Digesters $25,000.00 $200,000.00 8 Digesters $20,000.00 $160,000.00 -$40,000.00 21 Class "F" Flyash 7 ,000 Tons $49 .00 $343,000.00 2 ,500 Tons $49.00 $122,500.00 -$220,500.00 22 Transportation or Stabilizaed Solid Sludge/Contaminated Debris to Disposal Site 30,000 Tons $27 .00 $810,000.00 23 ,500 Tons $27.00 $634,500.00 -$175,5 00.0C 23 Stabilized Sludge/Contamnated Debris DisllOSlll 30,000 Tons $80 .25 $2,407,500.00 23 ,500 Tons $80.25 $1 ,885,875 .00 -$521,625 .0C C0-1 Utilize belt press method for sludge solidification. NIA NIA N/A $0.00 8 Digesters $114,920.38 $919,363.00 $919,363.0C Total Change Order Amount -$762.00 11/17/2011 ,, Attachment 1 AUi Proposal for Change Order No. 1 Robert Chambers From: Sent: To: Subject: Attachments: Robert, Philip Bennett <pbennett@auigc.com> Thursday, November 10, 2011 1 :45 PM Robert Chambers RE : Press Option for Sludge Removal Process Description (11-10-11 ).xlsx See the attached spreadsheet that provides the City of Fort Worth a description of our expected production rate, process overview and cost estimation for utilizing the press method at Riverside WWTP. Thank you, Philip Bennett AUi Contractors -----Original Message----- From: Robert Chambers [mailto:RWC@freese.com] Sent: Thursday, November 10, 2011 8:57 AM To: Philip Bennett Cc: Barbara Nickerson; Larry Eckersley Subject: Re: Press Option for Sludge Removal Thanks Sent from my iPhone On Nov 10, 2011, at 8:49 AM, "Philip Bennett" <pbennett@auigc.com> wrote: > Robert, > > I hope to have something written up by this afternoon. > > Thank you, > > Philip > > ----Original Message---- > From: Robert Chambers [mailto:RWC@freese.com] > Sent: Thursday, November 10, 2011 8:32 AM > To: Philip Bennett > Cc: Larry Eckersley; Barbara Nickerson > Subject: Re: Press Option for Sludge Removal > > Per my voice mail, we need a detailed breakdown of your cost proposal with a written description of how the process would work in letter format, including anticipated production rates, schedule, etc. It needs to be at a level of detail that can be understood by multiple people in the City that might be seeing/hearing about this method for the first time. > > Sent from my iPhone > > On Nov 9, 2011, at 1:13 PM, "Philip Bennett" <pbennett@auigc.com<mailto:pbennett@auigc.com» wrote: > > Robert & Katie, > > Please see the attached spreadsheet regarding the use of a belt press in lieu of the contract method of handling and treating the digester sludge at Riverside WWTP . > As we discussed in our meeting on October 19, 2011, we have assembled the overall cost savings to the City of Fort Worth with the reduction in solid sludge handling due to the belt press method. I have included the potential savings for a 25%, 30% and 35% reduct ion of solids . We have based our cost ideas on achieving the 30% reduction in solid sludge . We do not see the need to introduce additional water to process the solids . We believe that this process can be achieved with the water currently available inside the digesters. > > In addition, I have included a separate tab for the minority participation, and estimate that we will still achieve the contract goals with the reduction of solid sludge processed. > > As we also discussed, we have estimated the overall cost to the City of Fort Worth to be $919,363 to utilize the belt press method. This includes rental , operation, clean up and replacement parts for this equipment. However, while this cost is significant, the attached matrix projects an overall substantial savings for the City of Fort Worth on the Riverside project beyond the belt press cost. I also believe that our estimation of fly ash could be conservative, and that additional savings could be recognized on this unit price item, beyond the attached spreadsheet. > > Our hope is to receive a swift decision from the City and Freese and Nichols, in order for us to begin the sludge processing on digesters 6, 7 & 8 immediately. Please send us a written approval to proceed as soon as the City has reviewed and accepted this method and cost. > > > Sincerely, > > Philip Bennett > Project Manager > <imageOOl .png> > Superior Services with an Exceptional Team > 4775 North Freeway, Fort Worth, TX 76106 > Office: 817-926-4377 Fax: 817-926-4387 > www.auigc.com<http://www.auigc.com/> > > Think Green, Live Green -Please consider the environment before printi ng this email. > > NOTICE: The information contained i n this communication is CONFIDENTIAL. It is intended solely for the person(s) to whom it is addressed. If the reader of this message is not the intended recipient, nor the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any dissemination, distribution, or copy i ng of this communication is strictly prohibited. If you receive this message in error, please delete and contact the sender. Thank you. > > Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. > > > Please consider the environment before printing this message. > <Belt Press Submittal (11-09-11).xlsx> > > -------------- 2 > This electronic mail message is intended exclusively for the individual or entity to which it is addressed. This message, together with any attachment, may contain the sender's organization's confidential and privileged information. The recipient is hereby notified to treat the information as confidential and privileged and to not disclose or use the information except as authorized by sender's organization. Any unauthorized review, printing, retention, copying, disclosure, distribution, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this message in error, please immediately contact the sender by reply email and delete all copies of the material from any computer. Thank you for your cooperation. 3 16000 888.89 22.22 S.13 I PHASE 1, I TONS HRS WKS MO's UL RIVERSIDE WWTP SLUDGE REMOVAL PROCESS I TONS/ HR 1 Remove upper layer of solid sludge using a air mover (vacuum truck) a) alternate method would be to use a trackhoe to remove this layer 2 Upper layer of solid sludge would be transferred to a roll-off box for treatment with fly ash via vacuum truck I PHASE2 I 1 Remaining liquideous sludge and suspended solids will be pumped from the digester through a sludge pump and run through a press to separate the solids from the liquids. 2 Pressed solids will be transferred directly from the press into a roll-off box for mixing with fly ash (as needed). 3 Liquid will be pumped from press into first FRAC tank for processing through on -site facility (similar to the Digester #9 project). I PHASE3 ,I 1 Process water throughliquids Treatment Tank, filter and remaining FRAC tanks for disposal into Sanitary Sewer Manhole . 2 Complete mixing of fly ash in solid sludge, test and transfer to TSCA disposal site. ~ 21 "'•.·, 22 23 21 22 ·?'~ 23 21 22 -· 23 DESCRIPTION OF BID ITEMS Class 'F' Ash -17°" Reduction) _.,,-;'i ~.-,. ""~~"'.;., .-Transoortatlon of Stabilized Solid SludRe/Contamlnated Debris to Disnnul Site-(25" Reduction) Added Flv Ash oortlon of solids Total Tran•.....+ w/ Flv Ash t.,, -:'lcL<'L • .".-Stabilized Sludp/Contaminated Debris Dls.,.,..I (TSCA Reaulated, Non-hazardous waste with PCB's > SO n=l • 12°" Reduction) Added Flv Ash oortlon of solids Total DI-I w/ Flv Ash DESCRIPTION OF BID ITEMS Class 'F' Ash -(7°" Reduction) . ~-,.,,,.,. ___ r·f ·-~ ~ ~-· n-~~ Transoortatlon of Stabilized Solid Sludre/Contamlnated Debris to Dlsoosal Site -13°" Reduction) Added Fly Ash portion of solids Total Tran-,tw/ Fly Ash -. ~ ~~.t=>~~--.:,,r':{ Stabilized Sludre/Contamlnated Debris Dlsnnul ITSCA Ret!ulated, Non-hazardous waste with PCB's > 50 omni -(3°" Reduction) Added Flv Ash pomon of solids Total Dl....,..I w/ Flv Ash DESCRIPTION OF BIO ITEMS Class 'F" Ash -(7°" Reduction) {3 ; _. "' Transportation of Stabilized Solid Sludse/Contamlnated Debris to Dlsoosal Site -(35" Reduction) Added Flv Ash oortlon of solids Total Tran_. w/ Flv Ash Stabilized Sludn/Contamlnated Debris DtsDOUI {T5CA Ret!Ulated, Non-hazardous waste with PC81s > SO o""'l • (35" Reduction) Added Flv Ash oomon of solids Total ~ w/ Fl¥ Ash NOTB: $ ~ $ $ $ $ $ 49.00 -27.00 27.00 ~ C-~-,; 80.25 80.25 UNIT PRICE 49.00 ~~"::f·~ $ $ $ $ $ $ $ $ $ 27.00 27.00 .,, " 80.25 80.25 UNIT PRICE 49.00 27.00 27.00 80.25 80.25 7000 ,,. -~ 23000 7000 30000 •t'.' ...:-.: 23000 7000 30000 7000 :·:::r'··,'~·f~ 23000 7000 30000 l''·.,o'.•. --23000 7000 30000 110 QUANTITIES 7000 I,;.. .. ,,, 23000 7000 30000 23000 7000 30000 TON -,:; TON TON TON TON TON TON TON ~,..,fl. TON TON TON '~ -TON TON TON TON .-"' TON TON TON TON TON TON 2100 $ 343,000 $ 102.900 ii --~ """· ... -... '. 17250 $ 621,000 $ 465750 S D5.J5II .. 2100 $ 189,000 $ 51700 I· uz..a /,, .. ;• • .:,;1' '·· .• -· " -. -~· -,. 17250 $ 1,845,750 $ 1,384313 S 40.aa r.,• _, 2100 $ 561,750 $ 168.525 I -.ft!!. --TOTAL POTENTIAL SAVINGS rJuam•I 2100 $ 343,000 $ 102,900 s -, ... _,_ .,. .1;:_; -,, '· .,. ... ,~~ ;-,!':!' i-.-~ 16100 $ 621,000 $ 434,700 s ·--t, "" .• 2100 $ 189,000 $ 51700 • ~ -:;,··· """l;,rr'";-~z·;:t;~. {~,--·-)'·•, 16100 $ 1,845,750 S L292,025 s· .... 725 2100 $ 561,750 $ 168.525 I --:n'l .,, c-?' TOTAL POTENTIAL SAVINGS I St.soi.ea• j 2100 $ 343,000 $ 102,900 s --,,. ·. .~ .. ' .:..: ~ _..,. ·~ .. JA9SO $ 621,000 $ 403650 s 211..-2100 $ 189,000 S 5'.700 s .,.,_ 14950 $ 1.845,750 S L1117JI • ---2100 $ 561,750 S 111.525 S __,,_ TOTAL l'OT(NTIAl SAVINGS liYJY!?.-j -.-........ -larlllecootoftlle ___ ....... _ ... _tollle1-larllledtla ----2 "Ul ... -llle..-,off1¥ .... _,..,.., ..... ____ ,,......,.,_ ........... tllla-Tlle_,._... ___ oflof1M ............. --llle----,-.i .......... ,_ RIVERSIDE WWTP -BELT PRESS COST GRAND TOTAL COST MARKUP (15%)-Per NTCOG TOTAL w/ MARKUP 799,446 . 119,917 . . .. COMPANY DBE INFORMATION CERTIFICATION 1 Shea Services NCTRCA PO Box 2263 Denton, TX 76207 o . 940-243-8528 F. 940-243-8531 2 Ram Tool & Supply NCTRCA 1432 Mac Arthur Dr Carrollton, TX 75007 0 . 214-358-2363 F. 214-358-3768 3 Environmental Standards NCTRCA PO Box 800667 Balch Springs, TX 75180 0. 972-913-9006 F. 214-231-9060 4 JM Materi als NCTRCA PO Box 199 Alvord, TX 76255 0 . 940-427-3645 F. 940-427-2789 Total Dollar Amount of M/WBE Subcontractor/Suppliers Total Revised Value of Work Utilizing Belt Press (Based on reducing sludge solids 30% & adding belt press cos1) City's M/WBE Project Goal 13.00%! Prime's M/WBE PROJECT UTILIZATION 13.01%1 WORK DETAIL SUPPLIES DESCRIPTION PURCHASED Roof Debris Hau l ing Containment Materials Erosion Control Sludge Hauling DOLLAR AMOUNT $ 162,752 $ 99,265 $ 12,735 $ 310,610 I$ 585,362 I I $ 4,499,390 I