===== PDF PAGE 66 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: Resolution No. 25-R-0060 - Change Order No. 1 - Bluff City Construction, LLC. for the West Washington Street Soil COMMITTEE AGENDA DATE: August 7, 2025 COUNCIL AGENDA DATE: August 18, 2025Removal Project in an Amount Not to Exceed $67,967.05 for a Revised Contract value of $647,898.50 STAFF REVIEW: Mehul T. Patel, P.E., CFM- Director of Public Works SIGNATURE. _________ _ ITEM SUMMARY: The City currently owns a series of properties (collectively measuring ~14 acres in total) located near 119 West Washington Street in West Chicago, Illinois (the Site). The City wishes to redevelop the Site for various potential uses (municipal, commercial and/or residential); however, the Site has been found to be contaminated due to historical operations. The City wishes to pursue and obtain a No Further Remediation (NFR) letter for the Site to both protect the human health of potential future users of the Site and to enhance the Site's marketability to potential developers. The Site was enrolled in the Illinois Site Remediation Program (SRP) in August 2015. Various subsurface investigations and remedial activities were performed at the Site. The results of these investigations delineated several areas that required excavation to receive the NFR letter. A Comprehensive Site Investigation Report (CSIR), Remedial Objectives Report (ROR), and Remedial Action Plan (RAP) were submitted in August 2015. The Illinois Environmental Protection Agency rejected these reports due to various deficiencies. When she was an Illinois State Representative, current State Senator Karina Villa, was successful in securing $600,000 in grant funding through the Illinois Department of Commerce and Economic Opportunity (DCEO) for this Project. On June 15, 2023, the City received an executed grant agreement from DCEO for this Project. This is a reimbursement grant for which funds must be expended by March 31, 2026. On April 21, 2025, the City Council approved Resolution No. 25-R-0030 authorizing the Mayor to award a construction Contract to Bluff City Construction, LLC of Bartlett, Illinois, for the West Washington Street Soil Removal Project in an amount not to exceed $579,931.45.The scope of work generally consists of contaminated soil removal and disposal, clean construction demolition debris removal and disposal, concrete and asphalt removal and disposal, backfill excavation areas, site restoration, and all incidental and miscellaneous work necessary to complete the Project as shown on the bid documents. The intent of the bid documents was to utilize the available grant funds prior to sunset date based on a conceptual plan completed during the Future City Hall Space Needs Assessment Study. The construction work began in June 2025 but quickly became a stop-go Project. There are approximately forty-eight soil borings conducted throughout the site. The excavation limits in the bid documents were estimated based on the results of these soil borings and the conceptual plan. Essentially, the Project has four excavation areas, northeast (3-feet depth); northwest (10-feet depth); southwest (3-feet depth) and southeast (3-feet depth). The open excavations are in the northwest and southwest. Once the excavation estimated limits are reached, the environmental professionals conduct soil sampling at the perimeter of the excavation walls. These samples are then sent to the lab for testing. If the sample test reveals presence of exceeding levels of contamination, further excavation limits are determined based on professional judgement. If the sample test returns clear, the excavation is ceased and backfill work can proceed. The Project team is still working through the open excavations in the northwest and southwest. Excavation in the southeast and northeast areas has not started yet. Furthermore, the stockpile of material generated from City's utility and maintenance operations over the years was anticipated to meet Clean Construction Demolition Debris (CCDD) disposal standards, but subsequent testing determined it did not qualify. As such, the stockpile needs to be disposed of at a landfill. The bidding documents had estimated the removal of 500 cubic yards of stockpile material to keep the Project cost within the orant amount. ===== PDF PAGE 67 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO Based on the site survey of the stockpile, there are approximately 2,750 cubic yards of stockpile material in two separate piles, approximately 1,380 cubic yard stockpile located in the center part of the site and approximately 1,370 cubic yards located along the east fence line. Based on the above construction status and evolving status of the proposed conceptual plan for the site, staff is recommending the following scope changes. • Eliminate the excavation areas in the northeast and southeast • Add removal and disposal of the stockpile located in the center part of the site to a landfill • Add removal and disposal of the stockpile located along the east fence line of the site to a landfill The following table summarizes the additional work and its associated costs to date. No. Additional Work Item Reasoning for additional work Cost 1 Contaminated Soil Removal Eliminate the excavation areas in the $34,135.38 northeast and southeast (~2,324 CY). Add removal and disposal of the stockpile located in the center part of the site to a landfill (~1,380 CY). Add removal and disposal of the stockpile located along the east fence line of the site to a landfill (~1,370 CY) 2 Clean Construction Demolition Debris Soil Stockpile of material from City's ($16,345.00) Removal maintenance and utility operations 3 Excavation Backfill CA-6 Partial backfill savings from eliminating ($16,001 .87) the excavation areas in the northeast and southeast (~1,297 CY). Additional backfill is required for step-out excavation. Savings estimated at 50% of the eliminated quantitv. 4 Excavation Backfill Clay Partial backfill savings from eliminating ($7,086.05) the excavation areas in the northeast and southeast (~688 CY). Additional backfill is required for step-out excavation. Savings estimated at 50% of the eliminated quantitv. 5 Topsoil Partial backfill savings from eliminating ($1,735.41) the excavation areas in the northeast and southeast (~136 CY). Additional backfill is required for step-out excavation. Savings estimated at 50% of the eliminated quantitv. 6 Contingency If necessary, this item will be used to $75,000.00 further extending excavation limits/backfill for northwest and southwest plus standby pay due to stop-go nature of the project. The FY 2025 Capital Projects Fund (08-34-53-4810) includes $1,676,000, which covers construction and , management costs. This change order, which reflects a net scope adjustment, remains within the approved project budget and aligns with the goal of maximizing the use of available grant funding prior to the March 31, 2026 deadline. It should be noted that, for bidding purposes staff reduced the scope of the work significantly throughout the Project due to uncertainty about exact locations and volume of excavation associated with the future build-out plans for the site. This chan e order further reduces the excavation volume due to an evolvin conce tual Ian for the site. Once ===== PDF PAGE 68 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO the conceptual plan is finalized and approved by the City Council, the exact locations of excavation and remediation will need to be re-visited. ACTIONS PROPOSED: Approve Resolution No. 25-R-0060 authorizing the Mayor to approve Change Order No. 1 with Bluff City Construction, LLC of Bartlett, Illinois, for the West Washington Street Soil Removal Project in an amount not to exceed $67,967.05 for a revised contract value of $647,898.50 COMMITTEE RECOMMENDATION: ===== PDF PAGE 69 ===== [Extraction: embedded PDF text] RESOLUTION NO. 25-R-0060 A RESOLUTION AUTHORIZING THE MAYOR TO EXECUTE A CHANGE ORDER NO. 1 WITH BLUFF CITY CONSTRUCTION, LLC OF BARTLETT, ILLINOIS, FOR THE WEST WASHINGTON STREET SOIL REMOVAL PROJECT IN AN AMOUNT NOT TO EXCEED $67,967.05 FOR A REVISED CONTRACT VALUE OF $647,898.50 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. 1 with Bluff City Construction, LLC of Bartlett, Illinois, for the West Washington Street Soil Removal Project in an amount not to exceed $67,967.05 for a revised contract value of $647,898.50, in substantially the form attached hereto and incorporated herein as Exhibit "A". APPROVED this 18th day of August 2025. AYES: NAYES: ABSTAIN: ABSENT: Mayor Daniel Bovey ATTEST: Valeria Perez, Executive Office Manager