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Council Memo <br /> Public Works Department <br /> No. 2026-04 <br /> DATE: 1/20/2026 <br /> TO: Honorable Mayor Julie Moore Wolfe and City Council Members <br /> FROM: Melissa Hon,Interim City Manager <br /> Matt Newell,Director of Public Works <br /> Robert Weil,Water Production Manager <br /> Jennifer Gunter,Watershed& Lake Manager <br /> SUBJECT: <br /> Resolution Authorizing Amendment No. 5 for Professional Engineering Services Agreement with Spheros <br /> Environmental Parent Group,Inc.,a Delaware corporation,for Lake Decatur Watershed Management <br /> Plan City Project 2019-38 <br /> SUMMARY RECOMMENDATION: It is recommended that the City Council approve the attached <br /> Resolution authorizing the Mayor to sign, and the City Clerk to attest,to Amendment No. 5 for Professional <br /> Engineering Services Agreement with Spheros Environmental Parent Group, Inc., a Delaware Corporation, for <br /> Phase 5 of the Lake Decatur Watershed Management Plan for a cost not to exceed$828,922.50 over two years. <br /> BACKGROUND: <br /> This ongoing project has been successfully addressing City Council's Priority Goal#6,which is to collaborate <br /> with others in ensuring integrated and wholistic management of city-owned open spaces,transportation <br /> corridors, and especially Lake Decatur. The City's long-standing investment in protecting Lake Decatur has <br /> been improving water quality. The monitoring program shows a long-term trend of reduced sediment load on <br /> the lake, and the lake has not been impaired for nitrate levels in many years. <br /> The prior amendment,Phase 4,which covered the 2024-2025 period,was very productive. A summary of the <br /> tasks accomplished during that period is attached. <br /> The tasks to be accomplished by the consultant in the current amendment are similar, although the overall <br /> number of hours is reduced, as staff takes on a greater role in the program. The tasks are as follows: <br /> 1. Watershed management plan for Goose Creek <br /> 2. Watershed management plan for Finley Creek <br /> 3. Watershed management plan for Spring Lake/Sangamon River and Madden Creek <br /> 4. Section 319 grant program support <br /> 5. RCPP grant program support <br /> 6. Watershed coordination and plan implementation <br /> 7. Special projects <br /> 8. Section 319 best management practice engineering <br /> 9. Watershed management program <br /> 10. Lake Decatur long-term sediment planning and management <br /> 11. General consulting <br />