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Home My WebLink AboutWRH, Inc. - CO #8 - Contract No. 907 - 2/10/2020Owner. City of Waterloo Project'. Satellite Wet Well Rehabilitation Owners Contract No. 907 Date of Contract Stan CHANGE ORDER NO. 8 Date February 4, 2020 Contractor' WRH, Inc. S Onginal Contract: $1 839,380.00 You are directed to make the following changes in the Contract Documents. Description. Additions: • Construction of sanitary sewer piping and associated structures which will create a crossover connection between domestic and industrial interceptor sewers the east ode of the Cedar River Cross -Over Connection Addition = 5659,500.00 Deductions: progressed, it was determined that this work was not needed •. Bid item No 4 - Anaerobic Grout As construction of the project Anaerobic Grout Deduction = 586,000.00 • Bid Item No. 5 - Anaerobic Repair As Construction of the project progressed. it was determined that only a part amount of this wok was needed. Anaerobic Repair Deduction = 578,400.00 • Bid item No 9 - Satellite Bypass The construction of the cross -over connection between the domestic and industrial Interceptors on the east side of the Cedar River will negate the need for this temporary bypassing bid item. Satellite Bypass Deduction = 5200,000.00 • Bid Item No. 21 - Sludge Grout As Construction of the project progressed, it was determined that this work was not needed. Sludge Grout Deduction = 525,000.00 • Bid Item No. 22 - Sludoe Repair As construction of the project progressedit was determined that only a partial amount of this work was needed. Sludge Repair Deduction = S23,800.00 TOTAL ADDITIONS: $659,500.00 TOTAL DEDUCTIONS: ( 5393,200.00j NET CHANGE ORDER AMOUNT: $266,300.00 Reason for Change Order This change order will improve the constructability of the Satellite Wet Well Rehabilitation Project by eliminating uncertainties associated with installation of a temporary industrial wastewater bypassing system. The initial capital investment for the cross -over piping and structures on the east side of the Cedar River is projected offset by savings on te thesystemer eed forr a tempo arynbypasseed rsystempsh uldorary ypass system (e.g., the Gatewell li Rea habilitation Project) This cross -over system will also eliminate repairs/rehabilitation of the pipes under the Cedar River be required. CONTRACT PRICE Original. S 1,839,380.00 Onginal, Previous C.O.s (AD018EUUGTi. S 123,245.00 Previous C.O.s (ADD/6E000TT)- This C.O. (ADDAX -MUG -Ft S 2(56,300 00 This C.O. (ADDIDEDUCT). Contract Price With All Approved Change Orders: $ 2,228,925.00 REVISED. Original Completion Date Revised Completion Date CONTRACT TIMES (Calendar Days) To Substantial To Final Completion Completion 4 October 1. 2019 To be Determined It is agreed by the Contractor that this Change Order includes any and all costs associated with or resulting from the changets) ordered herein. including all impact, delays. and acceleration costs. Other than the dolor amount and time allowance listed abovethere shall be no further time or dollar 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 APPROVE By: 111 lA City al Waterloo tAvVonzed Sigratwe) ACCEPTED: By (AUhonzed 9pnaa+re) Date Dale Page I of 1 P'18d4884651600_CantnxUan_SupporPa7o_Change-Orders\2d20-02-04 - CO#8 - Sateiote Wetwall - WRH doc Z-164lu-zv AECOM 60488465 8 Project No Change Order No AECOM February 4, 2020 Mr. Randy Bennett Waste Management Services 3505 Easton Avenue Waterloo, Iowa 50702 Subject: Change Order No. 8 Satellite Wet Well Rehabilitation Waterloo, Iowa City Contract No. 907 AECOM #60488465 AECOM 501 Sycamore Street Suite 222 Waterloo, Iowa 50703 www.aecom.com 319-232-6531 tel 319-232-0271 fax Dear Mr. Bennett. Enclosed please find Change Order No. 8 for the above -referenced project. This change order includes the following: Additions: • Additional construction of sanitary sewer piping and associated structures which will create a cross -over connection between the domestic and industrial interceptor sewers on the east side of the Cedar River near Lafayette Street. Deductions: • Anaerobic Grout Work Item Elimination • Anaerobic Repair Work Item Quantity Reduction • Satellite Bypass Work Item Elimination • Sludge Grout Work Item Elimination • Sludge Repair Work Item Quantity Reduction It is recommended to move forward with this Change Order No. 8 in the net amount of $266,300.00. If you have any questions or need additional information, please let us know. Thank you. Yours sincerely, Ross A. Hillsman, PE Enclosure: As Noted c: WRH, Inc. P160488465\600_Construction Support\670_Change-Orders\2020.01-29 CO *8 - Tmsmtl to Randy Bennett Waterloo Satellite Wet Well Rehab.docx WRH, Inc. November 25, 2019 AECOM (#60488465) 501 Sycamore Street, Suite 222 Waterloo, IA 80704 Satellite Wet Well Rehabilitation Contract No. 907 Re: WRH CAR 06: Satellite Cross -Over Structure Attn: Ross Hillsman WRH, Inc. is pleased to provide this proposal for the installation of the Satellite Wet Well Cross -Over Structures based on drawings dated October 2019. General Conditions $34,500 • Mobilization • Temporary Site Facilities • Temporary Utilities Civil & Site Work $197,000 • Clear & grub the work area • Sheeted/Coffered excavation (assumed 40' x 20' at 20' +/- depth) • Dewatering wells installed outside of sheeted excavation to bedrock. Sump dewatering will be performed inside the excavation. • Backfill and sheeting removal following installation of structures • Seeding & surface restoration Installation of Manhole Structures $393,000 • New 96" ID FRP Manholes • Flat top with integrated manhole cover • CIP Concrete Base and Top Slabs • New Plasti-Fab fiberglass gates: (1) 36" & (2) 42" gate Site Pipe Installation $35,000 • New 42" and 36" PVC pipe spools from precast structures • New fernco-style boot connections between new spools and existing pipe • Concrete collars at PVC -RCP connections • New 42" PVC Cross -Over pipe between structures Proposal: $659,500 WRH, Inc. • PO Box 256, Amana, Iowa 52203 • 1648 T Avenue South Amana, IA 52203 Office: 319-622-3816 • Fax: 319-622-6095 • www.wncconstruction.com • info@wendlerinc.com This proposal does not include: • Survey control / staking (provided by AECOM) • Potholing / confirmation of pipe depth prior to ordering structures • Easements / Landowner coordination of any kind • Temporary bypass pumping at upstream manholes or lagoon for installation of structures (to be provided by the City) • Secondary pumping or storage provisions of waste water (to be provided by the City) Regards, Todd Weiss - Project Manager WRH, Inc. WRH, Inc.