===== PDF PAGE 76 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: Resolution No. 26-R-0035 - Change Order No. 2 - COMMITTEE AGENDA DATE: May 7, 2026Independent Mechanical Industries for the A2O COUNCIL AGENDA DATE: May 18, 2026 Phosphorus Removal Project for the West Chicago/Winfield Wastewater Authority Regional Wastewater Treatment Plant in a Credit of $11,447.00 for a Final Contract Amount Not to Exceed $5,109,353.00 STAFF REVIEW: Mehul T. Patel, P.E., CFM., Director of Public Works SIGNATURE _________ _ APPROVED BY CITY ADMINISTRATOR: Viviana Ramirez SIGNATURE _________ _ ITEM SUMMARY: The West Chicago/Winfield Wastewater Authority (WCWWA) Regional Wastewater Treatment Plant (WWTP) operates under an NPDES permit regulated by the Illinois Environmental Protection Agency (IEPA); Permit No. IL0024369. As authorized by the Clean Water Act, the NPDES Permit Program controls water pollution by regulating point sources that discharge pollutants into waters of the United States. Water pollution degrades surface waters, making them unsafe for drinking, fishing, swimming, and other activities. Industrial, municipal, and other facilities must obtain permits from the IEPA if their discharges go directly to surface waters and must renew their permits every five years. For years, the USEPA has pressured the IEPA to impose new and stricter nutrient removal limitations on wastewater treatment plants consistent with national policy. The most recent IEPA NPDES permit for the WCWWA WWTP expires on April 30, 2027. Since 2015, the WCWWA has been a member of one local environmental group, the DuPage River Salt Creek Workgroup (DRSCW), formed in 2005 in response to concerns about Total Maximum Daily Loads (TMDLs) being set for the East & West Branches of the DuPage River and Salt Creek, which is made up of local communities, Publically Owned Treatment Works (POTWs) or WWTPs, and private environmental organizations. The DRSCW has been working to produce comprehensive data sets for local watersheds to determine and resolve priority stressors to local aquatic systems. The organization continues to implement targeted watershed activities that resolve priority waterway problems efficiently and cost effectively. Working directly with the other environmental groups and the IEPA, the DRSCW has created, submitted, and received support for the implementation of special permit conditions and stream restoration projects. It is DRSCW's plan that implementation of its stream restoration projects will produce the greatest improvement in water quality and habitat for less money than individual POTW projects. Because of being a member of the DRSCW and paying Project Funding Assessments, participating POTWs received a temporary reprieve from the IEPA to upgrade its own POTW and comply with strict phosphorus limits likely to be imposed by the IEPA. The WCWWA agreement with DRSCW expired on December 31, 2022, at which time WCWWA stopped paying Project Funding Assessments. As a result, in WCWWA's current NPDES permit, a special condition has been added which states the total phosphorus removal limits of 1.0 mg/I would be effective Oct 1, 2026. On December 7, 2020, authorized by Resolution No. 20-R-0076, the Mayor executed a contract with the Donohue & Associates, Inc. (Donohue) for a Phosphorus Removal Pilot Study at the West Chicago/Winfield Wastewater Authority (WCWWA) Regional Wastewater Treatment Plant. This Study was completed and the final report was provided in January 2022. The study recommended four different options to reduce the total phosphorus limits below 1.0 mg/I. After review of the report and discussions with WWTP contracted staff, the consensus is to implement an option called "Anaerobic/Anoxic/Oxic (A2O)" to achieve the total phosphorus limits. This option will also provide the WCWWA with total nitrogen removal, limits for which will be coming down the road. With this option, the Study shows, WCWWA can achieve 0.37 mg/I total phosphorus removal limits, which would be ===== PDF PAGE 77 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO significantly below the 1.0 mg/I. The IEPA has previously suggested more stringent total phosphorus limits including 0.5 mg/I and 0.1 mg/I. On February 20, 2023, the City Council authorized Resolution No. 23-R-0006 authorizing Donohue to perform all required design engineering services related to the A2O Phosphorus Removal Project. On May 20, 2024, the City Council authorized Resolution No. 24-R-0045 to approve a Contract with Independent Mechanical Industries of Elk Grove Village, Illinois, for the A2O Phosphorus Removal Project at the West Chicago/Winfield Wastewater Authority Regional Wastewater Treatment Plant in an amount not to exceed $5,015,000.00. The Project scope of work includes physical modifications to the existing aeration basins, pulled air mixing system, electric actuators, pumps, diffusers and other necessary items. Please note, the current Project scope was reduced significantly to stay within budget. The major cuts included removing Return Activated Sludge (RAS) pumps, chemical polishing system, and modified electrical scope. By implementing the reduced Project scope, WCWWA can achieve 0.6 mg/I total phosphorus removal limits, which would be below the 1.0 mg/I. On August 18, 2025, the City Council authorized Resolution No. 25-R-0061 approving Change Order No. 1 in the amount of $105,800 for a revised contract amount not to exceed $5,120,800.00. The Project is nearly complete except for the miscellaneous punch list items. There were four other additional work items since the approval of Change Order No. 1 resulting in a net credit of $11,447 to the Project, which comprises of a resulting Change Order No. 2 for a final contract value of not to exceed $5,109,353.00. The items comprising Change Order No. 2 are listed in the table below. No. Additional Work Item Reasoning for additional work Cost 10 Bypass Pumping Credit The anticipated bypass pumping ($21,777.00) around the effluent gate was not needed. 11 Handrail Adjustments Revise handrail to eliminate access to $9,900.00 gaps in aeration tank grating. 12 Site Restoration Credit Seedino will be performed in-house. ($6,500.00) 13 Securing Grate openings and support Grating openings resulting from $6,930.00 removal of old diffuser purge piping and support of soft grating segment. The Change Order No. 2 revises the original contract time for final completion from 578 calendar days to 742 calendar days, mainly due to material delays which resulted in a delayed start to the Project construction. The final completion is June 15, 2026. All project costs, including this change order, are funded by the West Chicago/Winfield Wastewater Authority (WCWWA) and do not impact the City's General Fund. ACTIONS PROPOSED: Approve Resolution No. 26-R-0035 authorizing the Mayor to execute a Change Order No. 2 with Independent Mechanical Industries of Elk Grove Village, Illinois, for the A2O Phosphorus Removal Project at the West Chicago/Winfield Wastewater Authority Regional Wastewater Treatment Plant in a credit of $11,447.00 for a Final Contract Amount Not to Exceed $5,109,353.00, COMMITTEE RECOMMENDATION: ===== PDF PAGE 78 ===== [Extraction: embedded PDF text] RESOLUTION NO. 26-R-0035 A RESOLUTION AUTHORIZING THE MAYOR TO EXECUTE A CHANGE ORDER NO. 2 WITH INDEPENDENT MECHANICAL INDUSTRIES OF ELK GROVE VILLAGE, ILLINOIS, FOR THE A2O PHOSPHORUS REMOVAL PROJECT AT THE WEST CHICAGO/WINFIELD WASTEWATER AUTHORITY REGIONAL WASTEWATER TREATMENT PLANT IN A CREDIT OF $11,447.00 FOR A FINAL CONTRACT AMOUNT NOT TO EXCEED $5,109,353.00 BE IT RESOLVED by the City Council of the City of West Chicago, in regular session assembled, that the Mayor is hereby authorized to execute a Change Order No. 2 with Independent Mechanical Industries of Elk Grove Village, Illinois, for the A2O Phosphorus Removal Project at the West Chicago/Winfield Wastewater Authority Regional Wastewater Treatment Plant in a credit of $11,447.00 for a Final Contract Amount Not to Exceed $5,109,353.00, in substantially the form attached hereto and incorporated herein as Exhibit "A". APPROVED this 18th day of May, 2026. AYES: NAYES: ABSTAIN: ABSENT: Mayor Daniel Bovey ATTEST: Executive Office Manager Valeria Biggerstaff ===== PDF PAGE 79 ===== [Extraction: embedded PDF text] WEST CHICAGO CHANGE ORDER NUMBER 2 LOG Item Number Date Approved Description Price Change Summary 11ll/2025 11/13/2025 Bypass Pumping delete and credit $ (21,777 00) Revised Aeration Tank 1 and 2 Effluent Gate Removal and Fill Not Using Bypass Pumping 2 11ll/2025 11/13/2025 Handrail Adjustments $ 9,900 00 Revise handrail to eliminate access to gaps or opening in aeration tank grating 3 3/3/2026 3/17/2026 Site Restoration Credit $ (6,500 00) Delete Site restoration - seeding and grading work. 4 312/2026 3/17/2026 Securing grating openings and grating support $ 6,930.00 Grating openings resulting from removal of old diffuser purge piping and support of soft grating segment. TOTAL $ (11,447.00) ===== PDF PAGE 80 ===== [Extraction: embedded PDF text] CHANGE ORDER NO. _2 _ CHANGE ORDER COMMENCEMENT OF DATE OF ISSUANCE March 27. 2026 CONTRACT TIME June 3 2024 OWNER _____W"-'-"'e~st~C~h~i~ca~g~o~W--'--'-'-in~fi~1e~l~d~W'-'--=as=te~w'--=ru=e~rA'--=u=th=o"--n~·ty.,_______ ___:aO~WN:..:....:..~E~R....,_P~R~O~J~E~C~T~N>..:..=.:.O. CONTRACTOR _----"ln=d~e~p=e=nd~e=n~t-'-'M~e=c~h~an~i=c=al~T=n=d=us=t~ri=es=·~r=nc=·---------------------- PROJECT ---~P~h=o.,,.,sp=h=o=ru=s'--'R-'-'e=m=o=v,..,a,..__l.,_P'-'ro"""je=c"'"t____________ENG. PROJECT NO. 14254 ENGINEER ___ _.,D'--'o""n"'o_,_,_h,.,ue"----"'&'---'A'--'-"-'ss,,,o"'c"'ia,,,te""s"--'-'In-"'c"--. _________________________ _ YOU ARE DIRECTED TO MAKE THE FOLLOWING CHANGES IN THE CONTRACT DOCUMENTS: DESCRIPTION: 1. Delete bypass pumping that was part of the Aeration Tank 1 and 2 stop gate deletion and wall filling proposal that was included in Change Order No. 1. Contractor was able to perform this work without needing the bypass pumping. The proposed change for deleting the bypass pumping is per the proposal dated November 7, 2025 for a credit of ($21,777.00). 2. Provide modifications to the handrail to at the north end of Tanks 1-4. This closed the gap between the grating and handrail where the stop plates are no longer required per proposal dated November 7, 2025 in the amount of $9,900.00. 3. Delete site restoration consisting of fine grading and seeding per proposal dated March 3, 2026 for a credit in the amount of ($6,500.00). 4. Securing the openings in the grating resulting from removal of the old aeration equipment purge piping as well as adding support in another grating area per proposal dated March 2, 2026 in the amount of$6,930.00. REASON FOR CHANGE ORDER: 1. Alternative methods and sequences of construction were developed that preclude the need for bypass pumping that were originally included in an approved proposal to eliminate effluent gates at Aeration Tanks 1 and 2. 2. Adjust the handrail at the north end of Tanks 1-4 to close the gap between the grating and handrail where the stop plates are no longer required. 3. Site restoration will be coordinated and performed by the City. 4. Removal of the old aeration diffusers required removal of the old purge piping. This piping went through the grating in various locations and the resulting opening needed to be closed. ATTACHMENTS: 1. November 7, 2025 Change Proposal from Independent Mechanical Industries Inc. to Donohue & Associates, and accepted by West Chicago on November 13, 2025 for deleting the bypass pumping for work at Aeration Tanks 1 and 2. 2. November 7, 2025 Change Proposal from Independent Mechanical Industries Inc. to Donohue & Associates, and accepted by West Chicago on November 13, 2025 for adjusting the handrail to mitigate gaps in the grating. 3. March 3, 2026 Change Proposal from Independent Mechanical Industries Inc. to Donohue & Associates, and accepted by West Chicago on March 17, 2026 for deleting the site restoration work. 4. March 2, 2026 Change Proposal from Independent Mechanical Industries Inc. to Donohue & Associates, and accepted by West Chicago on March 17, 2026 for securing opening in the grating and adding a support to the grating. Donohue & Associates, Inc. CHANGE ORDER Project No. 14254 C0-2 ===== PDF PAGE 81 ===== [Extraction: embedded PDF text] CHANGE IN CONTRACT PRICE CHANGE IN CONTRACT TIMES Original Contract Price: Original Contract Times: (davs or dates) Substantial Completion: 548 Calendar Oa~s $ 5,015,000.00 Ready for Final Payment: 578 Calendar da~s Net increase (decrease) from previous Change Orders: Net increase (decrease) from previous Change Orders: (days) Substantial Completion: 0 $ 105 800.00 Ready for Final Payment: 0 Net increase (decrease) of this Change Order: Net increase (decrease) of this Change Order: (days) Substantial Completion: 163 $ (11,447.00) Ready for Final Payment: 164 Revised Contract Price: Revised Contract Times: (days or dates) Substantial Completion: 71 I Calendar Daxs (Max 15 2026) $ 5 109.353.00 Ready for Final Payment: 142 ~!!ls:wifil Dax~ (June 15 2Q2!;i) CONTRACTOR agrees that this Change Order includes any and all costs associated with or resulting from the change ordered herein, including all impacts, delays, and accelerated costs. Other than the dollar amount and time allowance listed above, there shall be no other dollar or time compensation as a result of this Change Order. THIS DOCUMENT SHALL BECOME AN AMENDMENT TO THE CONTRACT AND ALL STIPULATIONS AND COVENANTS OF THE CONTRACT SHALL APPLY HERETO. RECOMMENDED: APPROVED: ACCEPTED: By: ~O~;r,, By: ---------- \ OWNER (signature) CONTRACTOR (signature)By: I~~ ,.,_o-J ENGINEER (signature) Date: Date: 4/13/26 Date: 3/27/2026 Donohue & Associates, Inc. CHANGE ORDER Project No. 1425'1 C0-2 ===== PDF PAGE 82 ===== [Extraction: embedded PDF text] 2671 UNITED LANE ELK GROVE VILLAGE, IL 60007 PH: (773) 282-4500 INDEPENDENT FX: (773) 282-2046 MECHANICAL INDUSTRIES, INC. WEB: WWW. INDEPENDENTMECH.COM EMAIL: INFO@INDEPENDENTMECH.COM November 7, 2025 Subject: Donohue Project No. 14254 Phosphorus Removal Project West Chicago Winfield Wastewater Authority COR 010 - Bypass Pumping Credit to COR 009 IMI Project No. 24082 Mr, Greg Garnes - As discussed in progress meetings, IMI is providing the following change order credit related to demo and infill the effluent gates at Tanks 1&2 as proposed in COR 009. Below is the detailed scope of what was no longer needed from the original scope, as well as what was added. Please see the attached price breakdown and back up quotes with additional information. Added Scope: Bulkhead installation. Removed Scope: Bypass pumping and service watch. IMI labor. The total credit for IMI Change Proposal 010 is $21,777.00 (TWENTY-ONE THOUSAND, SEVEN HUNDRED SEVENTY-SEVEN DOLLARS AND ZERO CENTS). Please feel free to contact me should you have any questions regarding this Change Order. Sincerely, Nick Skender Project Manager HEAT & POWER GENERATION· HVAC PIPING· PROCESS/INDUSTRIAL PIPING· SERVICE· ASME CODE WORK Accepted By:-=-=---,---e-=-~,........,-~-~.,,_i:=::::.,....-,-..,....,....- Date: 11/13/25 Meh ul Patel, Director of Public Works ===== PDF PAGE 83 ===== [Extraction: embedded PDF text] W. Chicago / Winfield Wastewater Authoritv Phosphorus Removal ProJect INDEPE.NDENT MECHANICAL INDUSTRIES INC. LABOR MATERIAL ITEM#" QTY SIZE. DESCRIPTION LABOR MATERIA~ SUBS EQUIP l)'fHER TOTAL QTY UNIT FIRS SIHR1JmY,ffclr QTY UNIT MATS 1 COR 8 - Tanks 1 &2 Effluent Gate Infill 2 3 Stweart Spreading !See attached quote) $0 $0 $6,000 $0 $0 $6,000 4 Cleaning of channel. 5 6 Enger Vavra (See attached auotel $0 $0 $20,760 so so $20.760 7 Do.mo existing g~tcs. Fonn and nour concrete infills. 8 9 GEi $0 $0 $1.250 so $0 $1,250 10 Concrete Testina.1 davs Ill) $1,250/dav 11 12 Enger Vavra (See attached quote) $0 so $22.238 so $0 $22,238 13 Bulkhead installation. 15 SUB TOTAL - I S so so SSO 248 $0 so $50,248 0 TOTAL HOURS MARKUP-I% 15.00% 10.00% 10.00% 10.00'/, 0,00% MARKUP-IS so so $5,025 so SD SS.025 GRAND TOTAL • (SJ so so SSS,273 so so SS5 273 ===== PDF PAGE 84 ===== [Extraction: embedded PDF text] W. Chicago / Winfield Wastewater Authoritv Phosohorus Removal Proiect INDEPENDENT MECHANICAL INDUSTRIES, INC. LABOR MATERIAL ITEMfl QJ"Y SIZE DESCRIPTION LABOR MATERIAL SUBS EQUIP 01HER, TSTAL Q_,:Y: U.NIT HRS ll'HR>'&~Jmy, 1 For Q.T'r'. ONIT MATS 1 co·R 8 - Tanks 1·&2 Effluent Gate Infill 2 3 stweart Spreading (See ott.,ched ciuote) so so S8,500 so so S8,500 4 Cleanina af cha.n.neJ.. 5 6 Enger Vavra (See attached quote) $0 $0 $20,760 $0 $0 $20,760 7 Demo existing gates. Form and pour concrete infffls. B g GEi $0 $0 $1,250 $0 $0 $1,250 10 Concrete Testing, 1 days l!il S1,250/day 11 12 Rain For Rent !Seo •ttacJlc,d auotel so so S32.792 so so $32.782 13 Bva11,5S Dumulna. 14 Service watch for 3. 12-hour shifts (S2,465/shift) (1 included in quote). $7,395 15 16 Ind•""' dent Mecllanlcal lndu~tries, Inc. SS,520 5300 so so so S5.BW 3 18,00 48 $115.00 0 $0,00 $0.00 17 Build bulkhead between Tanks 2&3. Assist with cleaning of effluent channel. 18 SUB TOTAL. I S $5 S20 S3CO S70697 so so 569 122 48 TOTAL HOURS MARKUP-(% 15.00% 10.00'Y, 10.00% 10.00% 0.00% MARKUP-($ $828 $30 $7070 so so $7928 GRAND TOTAL - f $ $6 348 $330 sn.181 $0 so sn.oso ===== PDF PAGE 85 ===== [Extraction: OCR (rendered-page OCR)] =~ a SPREADI Page lof 1 August 19, 2025 Independent Mechanical Industries, Inc. 2671 United Lane Elk Grove Village, IL 60007 Attn: Chris W. Olson RE: PROPOSAL FOR WEST CHICAGO AERATION VAC TANK CLEANING Proposal VAC Aeration tank ............... cc 200 cee ces cee eee cee eee eee sees 91,000.00 per hour, 4-Hour Min, Port to Port. Mobilization 0.000... cece ec cee cee cee cee cee tee cee ves testes set eee cee ser eer tissteserisstesteess ees sees $1,000,00 Start at 4:00 A.M. on Monday, August 25, 2025 addition expense, hotel & periderm .... $1,000.00 Notes: 1. Material removed by VAC will be dumped on site for disposal by others. Please let us know if there are any questions. ACCEPTED BY: Approved By: Stewart Spreading, Inc. Independent Mechanical Industries, Inc. Greg Halmagyi, Bus. Div. Mgr. 08/19/2025 Name/Title Date Name/Title Date Stewart Spreading Inc., 3870 N IL Route 71, Sheridan, IL 60551 P: (815) 695.8887 | F:(815)695.5770 | www. stewartspreading.com ===== PDF PAGE 86 ===== [Extraction: embedded PDF text] ENGER-VAVRA, INC. Fax 847-678-4252 3406 MARTENS ST., FRANKLIN PARK, ILL. 60131 • SERVICE-DISABLED VETERAN OWNED (SDVOSB) May 12, 2025 rev2 Attn: Nick Skender Independent Mechanical nskender@independentrnech.com Subject: WCWWA Phosphorus Removal Project 725 Dayton Ave, West Chicago, IL We propose to furnish labor, materials, and equipment for the following work: Concrete Infill at (2) Gates 1. Install scaffolding inside the tanks to gain access to the gate locations. 2. Cut & remove existing metal gates to remove them from the concrete walls. 3. Install water stop along the (3) sides of the openings. 4. Install rebar dowels 3'-5' long@ 12" OC with 6" embed on 3 sides of the openings. 5. Install plywood framing on both sides of the concrete wall infill. 6. Infill (2) areas approx. 4 'x5' x 16" thick with concrete. 7. Strip plywood forms. 8. Remove scaffolding. Price $20,760 Excludes: Premium time labor Coatings/sealers/painting Winter Conditions Permits Material testing Inspections Scanning Sincerely, Ben Hester ENGER-VAVRA INC. ===== PDF PAGE 87 ===== [Extraction: embedded PDF text] ENGER-VAVRA, INC. 3406FRANKLINMARTENSPARK,ST.IL 60131 PHONEFAX 847-678-4200847-678-4252 DATE: 8/20125-8/25/25 JOB No.: 4030 WEEKLY SUMMARY No.: 4030-01 CUSTOMER: Independent Mecha11ical WORK ORDERS No.: PROJECT: WCI/I/WA LOCATION: East Concrete Walls at tl1e (2) Northern Tanks DESCRIPTION OF WORK: Prep & pour short walls to l1old back lhe water in the channel 8/20 8/22 8125 x/XJ< x/xx xlxx Mlxx HOURLY NAME TRADE SHIFT Wed Fri Mon RATE WAGES PAID Regular T 113 0 16 0 40,0 $123.79 SB.9I2 88 Laborer LalJorer Time & 112 $158 89 Double T '5194 00 Regular T 8.0 8,0 $1'10.47 S2.247 52 Carpenter Carpenter Tirne & 112 S 181 .71 DoubleT. $222 9.5 Regulrn T Tirne& 1/2 Double T Regula, T Tin1e& 112 Double T Regul8r T Time& 1/2 Drnib\e T Regular T fone& li2 Double T LABOR TOTAL : $11,160.40 MATERIAL DESCRIPTION TOTAL Stainless steel forms to remain in plc1ce $4,542 50 1-10-50, Pea grnvel. Waterstop, Adhesive $3.120 87 4x4's, SS Wedge Ancilors. Dri:I l)its. Ugtils Saw blodes WD40. Buckeis. Mixing conl<1i11ers. Balleries. Gloves S 1,682 06 MATERIAL TOTAL: $9,345.43 EQUIPMENT & TOOLS DESCRIPTION TOTAL Mortar mixer S634.34 Generator 3597 68 Truck x 2 days S500 00 EQUIPMENT TOTAL : $1,732.02 I WORK ORDER TOTAL: $22,238 I ===== PDF PAGE 88 ===== [Extraction: embedded PDF text] Zoho ®SignDocument ID: ~~Jl.~,1,E.7,7;!,~~9UZOKULPQDMXXGAUNVM307CHGCDLHXBU~~fl3J~Xt.JENT MECHANICAL 221 McDonald Ave Account: 129586 Joliet, IL, 60431 4155 N. Knox Avenue OBA INDUSTRIES INC 815-744-3947 Chicago, IL, 60641 rainforrent.com Chris Olson lmohr@rainforrent.com 773-282-4500 colson@ independentmech.com Dear Chris Olson, Thank you for your inquiry. As requested, please find attached our proposal 1049-IND-2182568 for West Chicago WWTP - Basin Pumping. We value this opportunity to provide a solution for your liquid handling need and we are committed to partnering with you to ensure your project's safe execution and completion. To convert this proposal into a confirmed order WITHOUT ANY CHANGES, please click the "Start Signing" button to begin the electronic signature process. If you would like to CHANGE anything in this proposal or discuss anything further, please call Luke Mohr at 815-744-3947. Thank you, and I look forward to working with you. Regards, Luke Mohr lmohr@rainforrent.com Mobile: 618-225-2684 Branch: 815-744-3947 221 McDonald Ave Joliet, IL, 60431 Liquid Ingenuity®-------------------- ===== PDF PAGE 89 ===== [Extraction: embedded PDF text] Zoho ~m,m ID, 26891 EE7-4VC9UZOKULPQDMXXGAUNVM307CHGCDLHXBUQ66TPY60 ; 'If> Rain For Rent INDEPENDENT MECHANICAL '."'"\, Sales Rep: Luke Mohr Account: 129586 • Proposal: 1049-IND-2182568 Project Name West Chicago WWTP - Basin Jobsite West Chicago WWTP - Basin I Pumping Pumping Date Prepared 7/31/2025 Est. Delivery Date 8/11/2025 I - Prevailing Wage Yes Est. Completion Date 8/18/2025 r725l'IFllllfflll"IIDayton Ave West Chicago, ii Project Description and Overview PROJECT OVERVIEW Customer will bulkhead between 3 & 2. RFR will provide equipment to bypass flow of 10 MGD for 1 week. Pumps will run 24/7. STATEMENT OF WORK RFR Responsibilities & Scope of Work Rain for Rent (RFR) will provide the following: Delivery/pickup of equipment only, no installation/removal or onsite labor Pump watch for 12hr shift. If customer request assistance for installation of system, this time will be billed time and material portal to portal at $160/ hour per employee. **Inbound freight pricing may vary depending on equipment availability Customer will provide the following: Operation of system Diesel fuel for pumps Pump watch if RFR pump watch isn't selected Lifting equipment with dedicated operator for the unloading, installation, removal and loading of equipment. Must be capable of lifting 10,000 Lbs. Due to the multitude of economic factors, materials, labor, hauling and freight are currently in a period of above average volatility. If, during the performance of work, the price of materials, labor, hauling or freight increases by 5% or greater through no fault of Rain for Rent, the contract price shall be equitably adjusted by an amount reasonably necessary to cover any such price increases. Equipment subject to availability at time of project. Reference Materials Project is quoted based on applicable/customer provided reference materials noted below: Plans __ Bid Specifications _x_ Engineering Documents _x_Job Walk(s) __ Customer Meeting(s) __ Geotech Report __ Verbal/ Written Request __ No specific project information received __ Safety Data Sheet Operating Parameters Pumping system will consist of four (4)DV200c LD (3 Primary, 1 Backup) each capable of pumping 2,313gpm. The suction for each pump will be 12" suction hose with a 12" tee on the end with a required submergence of 2.0ft. Discharge from each pump will be 8" HD Tank Hose. Improper suction submergence may cause vortexing which allows air into the suction pipe causing a decrease in pumping performance as well as a risk in losing prime. Suction stingers should be separated by in, if not pump performance may be impaired. Air/vacuum vents are required at the Proposal Number 1049-IND-2182568 Confidentiality Notice: This proposal and any associated document(s) are privileged and confidential and are intended for the sole use of the Page 2 of 7 addressee(s) They cannot be. us.ed, circulated, duplicated, quoted, or otherwis_e r~ferred to or disclosed to third parties for any re~son without the written consent _of an Officer of Western Oilfields Supply Cdmpany dba/Rain for Rent If you have received thiS information m error, please immediately contact us at info@rainforrent com ===== PDF PAGE 90 ===== [Extraction: embedded PDF text] Zoho efjmeat ID, 28891 EE 7-4VC9UZOKULPQDMXXGAUNVM307CHGCDLHXBU066TPY6O Rain For Rent INDEPENDENT MECHANICAL ~ • Sales Rep: Luke Mohr Account: 129586 ' Proposal: 1049-IND-2182568 ·-:I C: pump station, at high points along the pipeline and every 2,000LF. Each pump shall have isolation valves, individual suction pipes and pressure gauges on the suction and discharge. i C: Customer Responsibilities ■a - It is the customer's responsibility to inform RFR about prevailing wage at time of proposal. If RFR is informed after the quote is issued that ·-:I c:r certified payroll is required, quote will be subject to additional charges. ..I ·- Jobsite: Customer is responsible for: 1. Informing RFR of any jobsite or general requirement(s) to perform work on location. 2. Securing permits, fees, bonding, right of ways, vehicular/pedestrian traffic control, and security. 3. Providing safe, secure access and egress to an adequate staging area throughout the job which could include brush clearing, grading, and removal or replacement of any landscape or hardscape in the temporary right of way for the equipment. 4. Any damage to the environment including trees, vegetation, stream banks, or any other part of the site caused by the installation, removal, construction, pulling or dragging of equipment, or operation of the equipment that would require site restoration or environmental countermeasures. 5. Any excavation, saw cutting, trench plating for the purpose of road crossings, backfilling, restoration, modification, or alteration of any permanent structure or site element including changes to pump pad preparation, suction, or discharge chambers during duration of job (including installation and removal). System: 1. Customer will provide dedicated equipment with operator and fuel to perform all needed unloading, testing, operations, maintenance, relocating, cleaning, and reloading of provided equipment/system. Equipment must be capable of lifting 5000Lbs. 2. If installation provided by RFR and Customer is operating system, this Transfer of Operation form will need to be reviewed and signed by both parties upon completion of setup. (sample form only): https://rainforrentcorp.box.com/v/systemtransferoperation 3. Customer will provide fueling. 4. Customer will provide preventative maintenance as recommended by manufacturer or per the Rental Agreement. https://rainforrentcorp.box.com/v/pumpmaintenance 5. Customer will supply all needed water for the commissioning, startup, and system testing. Project-specific criteria for hydrotesting can be provided at an additional charge. 6. By accepting this quotation, the customer has acknowledged that the equipment proposed herein is suitable for its intended application and accepts all liabilities associated with its use. Customer is responsible for compliance with appropriate liquid/material quality standards, regulations, and testing protocols to meet all federal, state, local and job location specific requirements. Customer is responsible for all waste materials associated with this equipment/system. Customer is responsible for: 1. Any work in confined spaces. 2. Protecting system from damage including any freeze protection necessary to safeguard equipment from damage. Should equipment become frozen and damaged, customer is responsible for repair of equipment. RFR can provide necessary freeze protection at an additional charge per executed change order. Equipment stays on rent until it can be returned. 3. Using equipment in a safe and proper manner in accordance with manufacturers' recommendations, regulatory standards, and industry best practices. Improper usage may cause equipment/system failure, damage, possible incidents, injuries, and spills. Upon Pickup: Contact the RFR office at 1049releases@rainforrent.com to schedule pickup when equipment/system is cleaned and ready to be released. Flushing and cleaning of equipment must be performed to RFR's standards prior to being called off rent. RFR personnel will perform a visual inspection. It is recommended to have a customer representative on-site during inspection. Equipment found not to be in "delivered condition" will not be picked up. Project Scheduling & Billing This quote is valid for 30 days. Estimated schedule durations: Mobilization: 1 Day Installation: By Customer Operation: By Customer Removal: By Customer Demobilization: 1 Day System Rental Duration: Quotation is calculated for 1 week (7 consecutive days). Billing will reflect actual project du ration. Proposal Number 1049-IND-2182568 Confidentialjty Notice: This proposal and any associated docu_ment(s) are privileged and confidential and are intended for the sole use of the Page 3 of 7 addressee(s). They cannot be used, circulated, duplicated, quoted, or otherwise referred to or disclosed to third parties for any reason without the written consent of an Officer of Western Oilfields Supply Company dba/Ra1n for Rent. If you have received this information in error, please immediately contact us at info@rainforrent.com~ ===== PDF PAGE 91 ===== [Extraction: embedded PDF text] Loho ~moot ID, 28891 EE7-4VC9UZOKULPQDMXXGAUNVM307CHGCDLHXBU066TPY60 _ Rain For Rent INDEPENDENT MECHANICAL • _ Sales Rep: Luke Mohr Account: 129586 • Proposal: 1049-IND-2182568 Customer acknowledges that availability of equipment/system and/or media will be confirmed at time of order. Additional freight charges may apply subject to mutually agreed upon change order. Billing -,, 1. This is an estimate only. ::s 2. Actual Time and Material used for this job will be billed to the customer. ·-O' 3. Any re-rented equipment may be billed according to the third party's billing period. ..I 4. All billing subject to our standard terms and conditions in the rental agreement. ·- A minimum 2 hour charge will be assessed in the event the crew is at site and weather forces cancellation of work for remainder of day. Rain for Rent's standard hours of operation are 7:30am - 4:00pm Monday - Friday. Time outside of normal business hours will be billed at l.Sx the base rate for Transportation and Service Safety Each employee is expected to adhere to the RFR Environmental, Health and Safety programs, which will protect the environment, the health and safety of the customer, employees, and others. RFR asks for your full cooperation to succeed in this expected outcome. Proposal Number 1049-IN0-2182568 Confidentiality Notice: This proposal and any associated document(sl are privileged and confidential and are intended for the sole use of the Page 4 of l addressee(s). They cannot be used, circulated, duplicated, quoted, or otherv-.,1se referred to or disclosed to third parties for al')y r_eason without the written consen_t of an Officer 9f Western Oilfields Supply Company dba/Ra1n for Rent. If you have received this information in error, please immediately contact us at infa@rainforrent cbm. ===== PDF PAGE 92 ===== [Extraction: embedded PDF text] Zoho e,.~omem ID, 28891 E E7-4 VC9UZOKULPODMXXGAUNVM307CHGCDLHXBU066TPY6O _ l Rain For Rent INDEPENDENT MECHANICAL ~ • Sales Rep: Luke Mohr Account: 129586 • Proposal: 1049-IND-2182568 .. ·-:s I: RENTAL ITEMS Qty Units Duration Item Description Day Week Cycle Extension I: 4 EACH 1 Week 811035 Pump Trash 8" DV200C HD $622.12 $1,244.24 $3,732.72 $4,976.96 .__-'a 4 EACH 1 Week 1100935 Hose 12"x20' Flanged $285.57 $285.57 $571.11 $1,142.28 :s 'Cl' Composite 200# 4 EACH 1 Week 924163 Tee 12" SOCxBallxBall $64.59 $64.59 $129.17 $258.36 ..I ·- BauerGALV 4 EACH 1 Week 325348 Adapter 12" Bauer Ball x $40.71 $40.71 $81.43 $162.84 Flange GALV 1 EACH 1 Week 325285 Adapter 8" Bauer Ball x $28.56 $28.56 $57.11 $28.56 Flange GALV 4 EACH 1 Week 325289 Elbow 8" 90 Degree Bauer $36.23 $36.23 $72.45 $144.92 Socket x Ball GALV 3 EACH 1 Week 951811 Pipe 8"x10' Bauer HOPE $41.37 $41.37 $82.71 $124.11 DR17 8 EACH 1 Week 951821 Pipe 8"x20' Bauer HOPE $59.30 $59.30 $118.59 $474.40 DR17 3 EACH 1 Week 720378 Elbow 8" 90 Degree Flange $40.55 $40.55 $81.04 $121.65 Cast Iron 4 EACH 1 Week 724631 Hose 8"x10' Flanged $200.54 $200.54 $401.07 $802.16 Composite 200# 20 EACH 1 Week 724617 Hose 8"x20' Flanged $244.00 $244.00 $488.00 $4,880.00 Composite 200# 6 EACH 1 Week 325990 Float Open Green w/ Tyco $23.59 $23.59 $47.17 $141.54 Lead 50' 2 EACH 1 Week 638022 Telemetry Alarm Agent 2.0 $134.09 $402.27 $1,206.78 $804.54 25 EACH 1 Week 954987 Stud Kit 8" Flange $11.33 $11.33 $22.67 $283.25 8 EACH 1 Week 954988 Stud Kit 12" Flange $25.86 $25.86 $51.70 $206.88 2 EACH 1 Week BE00032 Transducer Pressure $78.28 $156.56 $496.68 $313.12 Submersible 0-l0PSI Rental Subtotal $14,865.57 SALE ITEMS Qty Units Item Description Unit Price Extension 8 EACH 944408 Gasket 12" Flange Fullface Red Rubber $42.75 $342.00 25 EACH 1003250 Gasket 8" Full Face Red Rubber Flange 1/8" $8.87 $221.75 Isale Subtotal $563.75 SERVICE ITEMS Description Price DELIVERY $1,207.50 PICKUP $1,207.50 SERVICE Inbound Freight $12,000.00 SERVICE Pump Watch - 12hr Shift $2,465.00 Iservice Total $16,880.00 Proposal Number 1049-IND-2182568 Confidenti_ality Notice: This proposal and any associated do_cument(s) are privileged and confidential and are intended for the sole use of the Page Sof 7 addressee(s) They ca-nnot be used, circulated, duplicated, quoted, or otherwise referred to or disclosed ta third parties for any reason without the written consent of .ari Officer of Western Oilfields Supply Company dba/Rain for Rent If you have received this information in error, please fmmediately contact us at info@rainforrent.com ===== PDF PAGE 93 ===== [Extraction: embedded PDF text] Zoho ~meat IDe28891 EE7-4VC9UZOKULPQDMXXGAUNVM307CHGCDLHXBU066TPY60 . • Rain For Rent INDEPENDENT MECHANICAL ~ \. Sales Rep: Luke Mohr Account: 129586 • Proposal: 1049-IND--2182568 1--'KUJl::CI COS IS Estimated Rental Total $14,865.57 Estimated Environmental Recovery Fees $483.13 'a - Total Estimated Recurring Charges $15,348.70 PROJECT COSTS ·-:Ic:r ..I - SERVICES•Estimated Delivery •$1,207.50 Estimated Pickup $1,207.50 Estimated Services $14,465.00 GRAND TOTAL $32,792.45 I -Estimated costs do not include taxes -Recurring rental project costs will be on a cycle/week/day basis+ tax Engine driven equipment will be delivered with at least 50% fuel. A Fuel Convenience Charge will be implemented on a per gallon basis up to the delivered fuel level. Customer acknowledges that the Fuel Convenience Charge is not a retail sale of fuel. Customer may avoid the Fuel Convenience Charge if the Customer returns the Equipment at delivered level. The fuel convenience fee will be charged per gallon. No refunds will be given for a higher level of fuel upon return. Customer Name Customer Signature Date Proposal Acknowledgement By signing this proposal, customer represents that he/she has read and agreed to both the Statement of Work and Quote Agreement sections, and is also agreeing to the grand total amount listed above, plus any recommended optional items if accepted and initialed. If customer requires a Purchase Order number to process and submit payment, it must be supplied to Rain for Rent at the time of acceptance of this proposal. PO Number: Rental Protection Plan I have received and reviewed the Rental Protection Plan Agreement incorporated as the last page of this estimate. By initialing this paragraph, I understand that I am agreeing to enter into and be bound by the terms of the Rental Protection Plan Program Agreement and that I am authorized to enter into this Agreement on behalf of Customer. FOR ALL RENTALS OF EQUIPMENT, EXCEPT THOSE SPECIFICALLY EXCLUDED, YOU MAY EITHER SHOW PROOF OF PROPERTY INSURANCE IN ACCORDANCE WITH INSURANCE REQUIREMENTS AND RENTAL AGREEMENT OR PURCHASE THE RENTAL PROTECTION. THE PURCHASE OF THE RENTAL PROTECTION PLAN FOR RENTALS OF EQUIPMENT IS NOT MANDATORY AND MAY BE DECLINED IF YOU HAVE PROOF OF ALL RISK PROPERTY INSURANCE AS REQUIRED BY CONTRACT. _ ..._____s_2_,0_6_2_.1_s.....1_A_c_c_e_pt______o_e_cl_in_e_____________ __. INITIAL Created Date: 7/31/2025 Proposal Number 1049-IND-2182568 Confidentiality Notice: This proposal and any associated document(s) are privileged and confidential and are intended for the sole use of the Page 6 of 7 addresseejs), They cannot be used, circulated, duplicated, quoted, or otherw1?e referred to or disclosed to thtrd parties for any reason without the written consent of an Offjcer of Western Oilfields Supply Company dba/Ra1n for Rent. lf you have received this information in error, please immediately contact us at info@rainforrent~com ===== PDF PAGE 94 ===== [Extraction: embedded PDF text] Zoh, ,.~ m,m ID, 28891 EE7-4VG9UZDKULPQDMXXGAUNVM307GHGGDLHXBU066TPY6Q . Rain For Rent INDEPENDENT MECHANICAL • Sales Rep: Luke Mohr Account: 129586 • Proposal: 1049-IND-2182568 Quote Agreement If Customer has entered into a Master Service Agreement with Rain for Rent and there is a conflict between these terms and conditions of this Quotation Agreement and the Customer's Master Service Agreement, then the terms and conditions in the Customer 1s Master Service Agreement signed by Rain for Rent will prevail. Availability of products and services is subject to change without notice. Payment terms are net 30 days from invoice date. Interest at the rate of 18% per year shall be charged on any past due invoice. Rain for Rent applies a processing fee on credit card transactions. The processing fee amount does not exceed our cost of accepting credit cards as required by the card brands. To avoid this fee, choose an alternative payment method (e.g. ACH). A Fuel Surcharge will be calculated and invoiced based on the diesel fuel price as published by the Department of Energy on https://www.eia.gov/petroleum/gasdiesel An Environmental Recovery Fee shall apply to all rental charges invoiced for the duration of the rental pursuant to this quote/Estimate to help offset direct and indirect costs associated with regulatory compliance, obtaining permits, and obtaining licenses. california Air Quality Fee will be added to the cost of diesel pumps used in California only. This is a State mandated fee. Customer is prohibited from deducting retention from Rain for Rent invoices and charging Rain for Rent liquidated damages, Customer is responsible for flushing and cleaning tanks, roll off boxes, pipelines, pumps, filters and other Rain for Rent equipment prior to return unless specifically agreed to by both parties in writing, The Terms and Conditions of the Rain For Rent Rental and Hazardous Material and/or Non-Hazardous Waste Agreement, Credit Application/Master Rental & Sales Agreement, Invoice and this Quotation (also known as the Rain for Rent Rental/Sale Estimate as may be referenced in any Master Service Agreement, Blanket Purchase Order, or any other contractual document executed between the parties) contain the complete and final agreement between Rain for Rent and Customer and no other agreement in any way modifying or adding to any of said Terms and Conditions will be binding upon Rain for Rent unless made in writing and signed by a Rain for Rent Corporate Officer or Rain for Rent authorized representative. The Customer cannot alter the equipment without Rain for Rent's prior written approval. Customer is responsible for equipment, repairs, maintenance and damage, excluding normal wear and tear or damage caused by Rain for Rent, Rain for Rent will service all engine driven equipment at 400 hours of runtime or as required by manufacturer specifications, if less than 400 hours. Labor will be billed on a time and materials basis, portal to portal from nearest Rain for Rent location, Prorated billing will occur if rental is returned prior to 400 hours. All returned equipment is subject to inspection by Rain for Rent personnel. Damages and accrued rent will be invoiced to Customer while equipment is out of service for repairs, The Customer is responsible for damage caused by reactive, corrosive or abrasive material; including, but not limited to sand, sodium hydroxide, chlorine, and acids. Customer must notify Rain for Rent immediately of any spill so that any necessary repairs to the system can be made and to minimize service interruption. The Customer assumes all risks of loss due to operation and use of the equipment. Customer will provide "all risk" property insurance for rented equipment. Customer shall pay Rain for Rent additional expenses caused by unforeseen or changing conditions, including, but not limited to 1 soil, underground conditions, rock formations, environmental conditions, weather events, regulations or restrictions, hard pan, boulders, cesspools1 gas lines, waterlines, drain pipes, underground electrical conduits or other above ground or underground obstructions. All equipment rented or used products sold are provided "AS IS, WHERE IS" in their present condition. Rain for Rent makes no warranties, expressed or implied of any kind whatsoever with respect to the equipment or products. Sold equipment is not to be rented. Customer agrees that customer is renting equipment or purchasing used products based on their judgment and evaluation, without reliance upon any statements of representations by Rain for Rent, and that Rain for Rent is not responsible for any defects in their operation or for any repairs, parts or services1 unless otherwise noted. All new products sold are provided without warranty beyond the terms of such warranty offered by the manufacturer, if any. Customer must comply with all original manufacturer's terms and conditions for any warranty claims that may arise, Neither Rain for Rent nor the manufacturer warranties the product if it has failed due to corrosion, misuse or damage; (2) it has been altered, repaired or modified in any way that would adversely affect its operation; or (3) it was installed or operated other than in accordance with manufacturer's operating instructions. Products supplied by Rain for Rent are warranted to be free from any defect in workmanship and material under conditions of normal use and service. Rain for Rent's obligation under this warranty is limited to replacing or repairing at the designated manufacturer's or Rain for Rent facility any part or parts returned to it with transportation charges prepaid, which Rain for Rent determines in its sole discretion to be defective, This Quotation excludes any additional costs to Rain for Rent associated with Owner Controlled Insurance (OCIP) or WRAP insurance programs that will be added to Rain for Rent's prices. De-watering, Roll-off, Vacuum boxes and similar equipment are not liquid tight. Rentee accepts full responsibility for all losses, damages and costs caused by or arising out of spills, leakage or discharge from this equipment. Rain for Rent will not be held liable for any structural or soils subsidence. This Quotation is valid for 30 days and is subject to credit approval. The prices quoted herein are based on the tariffs, duties, and import/export regulations in effect as of the date of this quotation. If, at any time after the issuance of this Quotation, there is any change in applicable tariffs, duties, taxes, surcharges, or other government-imposed costs, Rain for Rent reserves the right to adjust the quoted prices accordingly. Rain for Rent is not liable for delays caused by changes in tariffs, duties, and import/export regulations . Please be assured every effort will be made to execute the quote as written. Rental Protection Plan Program Agreement If you elect to maintain All Risk Property Insurance coverage, and the certificate of insurance You provide to Rain for Rent to evidence Your insurance coverage expires or is cancelled for any reason, You agree Rain for Rent may charge RPP for Your rentals until such time as You provide an acceptable and valid certificate of insurance to Rain for Rent. This Rental Protection Plan Program Agreement (this "RPP Agreement") is entered into between the undersigned Rentar and Rentee in relation to the Master Rental and Sales Agreement (MRSA) between Rentar and Rentee. If Rentee has checked or initialed, as applicable, the Rental Protection Plan Program (the "RPP Program") box on the quote, then Rentee has opted-in to the RPP Program and this RPPP Agreement shall supplement the MSRA whether or not executed by Rentee. Rentee understands and agrees that the RPP Program is not insurance and that the RPP Program provides only limited coverage, as described below.1.Cost; Deductible; Maximum Coverage; Rentee shall pay a fee equal to 15 percent (15%) of the rental charge for each covered item, which fee shall be listed on each invoice during which period Rentee has opted to participate in the RPP Program. In the event of a Covered Occurrence, as defined below, Rentee shall further be responsible for the lesser of $500 or 10 percent (10%) of the total loss, as a deductible. The maximum coverage available under the RPP Program is $150,000 per Covered Occurrence, whether or not there is more than one piece of equipment involved in the occurrence.2.Coverage; The RPP Program provides coverage only for losses involving Covered Equipment, as defined below, in the following instances: fire that was not caused by Ren tee's gross negligence or willful misconduct; theft for which a police report was filed, and that occurred despite Rentee's reasonable precautions to protect and secure the covered equipment; and vandalism for which a police report was filed (individually, "Covered Occurrence," and collectively, "Covered Occurrence"), The RPP Program provides coverage only for the following types of equipment: pumps, electric submersible pumps, tanks, generators, light towers, filtration, boxes, heaters, spillguards, safety products, sprinklers, hoses, pipe, valves and fittings ("Covered Equipment"). Coverage does not extend to any equipment not owned by Rentar such as re-rented equipment.3.Exclusions; The RPP program does not cover any equipment or event of loss that is not specifically described in Section 2.Without limiting the foregoing, the RPP Program does not provide coverage for the following: misuse of equipment; willful abuse of equipment; failure to maintain equipment; failure to secure items from theft (including but not limited to failing to store items in a fenced, locked area or failing to maintain personnel on site); damage or theft while in transit to or from a jobsite; corrosion from any source; any damage caused by named storm events; any instance that occurs while the account is not in good standing, such as a default as defined in the MRSA or upon written notice of non-payment; and any occurrence not reported to Rentar within 24 h □urs after the occurrence_The RPP program does not provide coverage for: electronic equipment (controls, instrumentation, and wiring), flow meters, water meters, wheel wash systems & accessories, Freezesentry items, or tires.4.Claims; All claims must be submitted within 24 hours of the Covered Occurrence. Renter's mechanic will inspect the equipment following any claim_The mechanic's findings as to the cause of the damage and cost of repair will be final. In the event of a theft or vandalism, Ren tee must also provide supporting evidence that the site was secured at the time of loss. Proposal Number 1049-IND-2182568 Confiderytiality Notice: This proposal and any assoi;:iated Qocument(s) are privileged and confidential and are intended for the sole use of the Page 7 of 7 addres:see(s) They can·not be used, circulated, duplicated, quoted, or otherwise referred to or disclosed to third parties for any reason without the written consent of an Officer of Western Oilfields Supply Campany dba/Rain for Ren L If you have received this information in error, please immediately contact us at info@rainforrent~com. ===== PDF PAGE 95 ===== [Extraction: embedded PDF text] 2671 UNITED LANE ELK GROVE VILLAGE, IL 60007 PH: (773) 282-4500 INDEPENDENT FX: (773) 282-2046 MECHANICAL INDUSTRIES, INC. WEB: WWW. INDEPENDENTMECH.COM EMAIL: INFO@INDEPENDENTMECH.COM November 7, 2025 Subject: Donohue Project No. 14254 Phosphorus Removal Project West Chicago Winfield Wastewater Authority COR 011 - Handrail Adjustments at North End of Tanks 1-4 IMI Project No. 24082 Mr, Greg Garnes - IMI is providing the following change order to adjust the handrail at the north end of Tanks 1- 4. The purpose of this change order is to close the gap between the grating and handrail where the stop plates are no longer required. Please see the attached price breakdown and back up quotes with additional information. The total add for IMI Change Proposal 011 is $9,900 (NINE THOUSAND, NINE HUNDRED DOLLARS AND ZERO CENTS). Please feel free to contact me should you have any questions regarding this Change Order. Sincerely, Nick Skender Project Manager Accepted By:~~- ~-~~~-~----------~~~ Date: 11 /13/25 Mehul Patel, Director of Public Works HEAT & POWER GENERATION • HVAC PIPING· PROCESS/INDUSTRIAL PIPING· SERVICE· ASME CODE WORK ===== PDF PAGE 96 ===== [Extraction: embedded PDF text] W. Chicaao I Winfield Wastewater Authority Phosphorus Removal Project INDEPENDENT MECHANICAL INDUSTRIES, INC. LABOR MATERIAL ,,~#. QTY ;~ DESCRIPTION LABOR MA .l:JWIIL_ SUBS EQUIP OTHER 11:llAL QIT UNII HRS $IHR 1 Jrny, 1 For QIT UNIT MAI$ 1 COR 11 - Handrail Adjustments at Nonh End of TankS 1-4 2 3 AHC MechanlC'11 Services LLC $0 $0 $9,000 $0 $0 $9,000 4 Handrail adjustments. s SUB 1u1AL ··IS $0 $0 $9,000 $0 $0 $9,000 0 TOTAL HOURS MARt.AlilC'IIIU-11 RAILINGTO AROUND FRAME TYPALL REMAIN IN PLACE LOCATIONS l ~Dt::ttl!E:~t(D CONCRETE AROUND GATE Itl FRAME IN ACCORDANCE VIIITH(]ED<3> ~ I I! B<1 ,i '°"' I>@],,.. ·i § GKA:l'llliii~~Vl'Thl ~ REMOVABLE GRATING SECTION OVER GATE FRAME SEE{]E[) NEWALG!.ATING MATCH C.\li4tlli:IINCiltt!iQ!~ THICIOJESSOFEXISTING PHOTO PHOTO 4 I (.ft"t,ftill,~~ ~ POtllll.l..~~ SUPPORTS WHERE REOLARED IN ACCORDANCE WITH~ I~-:~:~0 1a11111B~ - ~ f<.EMOVEAND REPLACE GRATING -Prt1Ji~Nc· 14254 ~ P·QJK\0.tll MAR 2024 N~TE~EPAIR'·DETERIORATED CONCRETE AROUND GATE FRAMES PRIOR TO INSTALLING NEW GRATING AA<)IIJ!lll!'lclllTIN.0 REINSTALLING METAL FRAME. REFER 1'Q PM:litotlohD<:3:> 2. FIELD VERIFY LOCATION ANO EXTENTS OFGRATINGANO SUPPORTS LOCATE GRATING SUPf>ORTS TO AVOID INTERFERENCE WITH GATE OPERATION ENLARGED PLAN ~ ' ~ .... QHIIIICEJtiRl::)b'TfiQ i: ~ 0-, ~rl...itO.,,CG'tt "' FRAME IN ACCORDANCE :c 0 I:! 0 WITH~ ::! ~f <3> ~ ci! o "':c..:"- zC oCIW>CI cz <.,_o < .... < !,! <:;; !,,! zz :c;:W:c 0:3 ol!;!ll:o ll. I= PHOTO PHOTO t;~~t; ;;lie ~;:~~ wW C :c < ~ ..Jll. !M ~ z ~if:;: w PLAN NOTES: GENERAL NOTES: 1 GRATINGSUPPORTBEAM .<>SEE~ 1, CONTRACTOR TO FIELD VERIFY EXISTING CONDITIONS, DIMENSIONS, AND ELEVATIONS PRIOR TO CONSTRUCTION ANOOR 2 GRATJNGSLJPPOFHBEAM SEE~ FABRICt\TION J PROVIDE ADDITIO~L RAIL PIECES AND FITTINGS AS REQUIRED TO J. a)lfl'f(NJf~ Tl)IIDVI ltl~ ~'Wll!l,rf~ PROPERLY TERMINATE EXISTING RAILING AT LOCATION OF ~AAT..a~CC1~W-1Ptl!IC~ REMOVED RAIL • ..UIICl.i\lol:IIII.UE:JliAI. 4 CONTRACTOR SHALL FIELD VERIFY EXTENTS OF CONCRETE J PHOTOS SHOWN ON THIS SHEET T.O,KENAT NORTH WAL'{(Wl,,Y DETERIORATION AND COORDINATE DETAILS OF REPAIR WITH SOUTH WAL~Y SIMILAR >DONOHUE ENGINEER AT TIME OF CONSTRUCTION IH;l",l:lrOO'(.~f(g 28 "'"""""""' C,-aa M, IIWltt .• PHOTO ~ 30-S-6 ===== PDF PAGE 99 ===== [Extraction: embedded PDF text] 2671 UNITED LANE ELK GROVE VILLAGE, IL 60007 PH: (773) 282-4500 INDEPENDENT FX: (773) 282-2046 MECHANICAL INDUSTRIES, INC . WEB: WWW. INDEPENDENTMECH.COM EMAIL: INFO@INDEPENDENTMECH.COM March 3, 2026 Subject: Donohue Project No. 14254 Phosphorus Removal Project West Chicago Winfield Wastewater Authority COR 012 - Site Restoration Credit IMI Project No. 24082 Mr, Greg Garnes - Per on site meetings and progress meetings, IMI is providing the following change order credit regarding site restoration. Please see attached site map locating what areas would need restoration. A rough estimate of 3500-4000 SF. The total credit for IMI Change Proposal 012 is $6,500 (SIX THOUSAND, FIVE HUNDRED DOLLARS AND ZERO CENTS). Please feel free to contact me should you have any questions regarding this Change Order. Sincerely, Nick Skender Project Manager Accepted By: ______~-~-~-"',._~~~------- Date: 3/17 /26 Mehul Patel, Director of Public Works HEAT & POWER GENERATION • HVAC PIPING • PROCESS/INDUSTRIAL PIPING • SERVICE • ASME CODE WORK ===== PDF PAGE 100 ===== [Extraction: embedded PDF text] N'dld A3)1 w .LN31Nd0131\3C 3.LIS :I :c ii i ~ ~ ~ 0 ~ 11 'omt:>IH:l .LS3M .L:>3rOHd llfl\OIN3H snHOHdSOHd z ~ 0 : H3.LVM3.LSVM Cl31~NIM .. t ! A.LIHOH.Lnlf Cl ! ' .l i ~I /O!llf:>IH:l .LS3M ~ } ! A J I::,u,,:~ } ,I ~ I .,,. ~ i~ I: i •.✓. :11 JL ===== PDF PAGE 101 ===== [Extraction: embedded PDF text] 2671 UNITED LANE ELK GROVE VILLAGE, IL 60007 PH: (773) 282-4500 INDEPENDENT FX: (773) 282-2046 MECHANICAL INDUSTRIES, INC. WEB: WWW. INDEPENDENTMECH.COM EMAIL: INFO@INDEPENDENTMECH.COM March 2, 2026 Subject: Donohue Project No. 14254 Phosphorus Removal Project West Chicago Winfield Wastewater Authority COR 013 - Grating Repair IMI Project No. 24082 Mr, Greg Garnes - Per on site meetings and progress meetings, IMI is providing the following change order to repair the grating in walkways between the aeration tanks. Install¼" aluminum plates over the oversized holes in grating, 25 locations. Install 1-1/2" angle to support grating at soft spot. The total for IMI Change Proposal 012 is $6,930 (SIX THOUSAND, NINE HUNDRED THIRTY DOLLARS AND ZERO CENTS). Please feel free to contact me should you have any questions regarding this Change Order. Sincerely, Nick Skender Project Manager ~~---Accepted By: ___________ _ Date: 3/17/26 Mehul Patel, Director of Public Works HEAT & POWER GENERATION· HVAC PIPING· PROCESS/INDUSTRIAL PIPING· SERVICE· ASME CODE WORK ===== PDF PAGE 102 ===== [Extraction: embedded PDF text] W. Chicago / Winfield Wastewater Authority Phosphorus Removal Project INDEPENDENT MECHANICAL INDUSTRIES, INC. LABOR MATERIAL ITEM# an SIZE DESCRIPTlON LABOR ..,.,cRIAL SUBS EQUIP O,ncl'< TOTAL I ... IT IJNII HRS MIR 1 Jrny, 1 For QTY UNIT MAT5 , COR 13 • Gr:atlno Ro.,..ir 2 3 AHC Mechaniaal Semces so so S8,JOO so so se.Joo 4 5 >6,JuO SUB TOTAL· l JO >6,300 0 TOTALHO\JRS > w 10,00% MARKUP • ( '/4 ) 15.00%'" 10.00%.• o 10.00,i 0.00'1', MARKUP·($} so $0 $630 so so $630 GRAND TOTAL • { $) so so $6,930 $0 1'0 $6,930 ===== PDF PAGE 103 ===== [Extraction: embedded PDF text] 101 West St. Magnolia, IL MechanicalAHC Services LLC 815-869-3111 To: Independent Mechanical Industries, Inc February 26, 2026 2671 United Ln Elk Grove Village, IL 60007 AHC Mechanical Services LLC is pleased to submit a proposal for West Chicago Wastewater. • Install ¼" aluminum plates over the over sized holes in grating 25 places • Install 1-1 /2" angle to support grating Contract Price: $ 6,300 If you have any questions concerning this proposal, please contact us at your convenience. Respectfully yours, ~~ AmberCimei