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TO: Mayor John Laesch
FROM: Brian Katamay, Long Term Control Plan Project Assistant
DATE: January 26, 2026
SUBJECT:
A Resolution authorizing the Director of Purchasing to execute a two-year contract with Fehr Graham & Associates, LLC in the amount of $263,000 for NPDES and MS4 compliance and sampling, as well as the purchasing of remaining flow metering equipment.
PURPOSE:
This two-year contract continues the professional service agreements previously held by Fehr Graham & Associates that aids the City in collecting the necessary data and water quality samples to meet the obligations of our NPDES and MS4 permits, as well as preparing required monthly reports to the Illinois Environmental Protection Agency. Additionally, the City is required to monitor flow to each of our combined sewer outfalls. This contract will facilitate the purchase and installation of flow meters for the two remaining outfalls utilizing the older technology.
BACKGROUND:
The National Pollutant Discharge Elimination System (NPDES), resulting from the Environmental Protection Agency's Clean Water Act, created several permits and compliance standards for the City of Aurora.
The City's NPDES Discharge permit covers discharge limitations, monitoring, and reporting requirements. The permit requires the City to submit monthly Discharge Monitoring Reports (DMRs) for all combined sewer overflows (CSOs). The City maintains 15 CSOs discharging into the Fox River and one discharging into Indian Creek and must record overflow volumes on the monthly DMRs though the use of flow meters in our diversion structures. Exhibit B shows the locations of the 16 CSOs, their respective sewer basins, and the boundaries of the combined sewer system.
The City's Municipal Separate Storm Sewer System (MS4) permit, also known as NPDES Permit No. ILR40, regulates how the City manages stormwater flows into water bodies in order to protect water quality. The programs to obtain the required data includes dry-weath...
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