R2024-295 Resolution Authorizing Lake Decatur Watershed Farmland Conservation Program Agreement for Pond Improvements with Angela Kay Norman

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Public Works DATE: 8/26/2024 MEMO: 2024-104 TO: Honorable Mayor Julie Moore Wolfe and City Council Members FROM: Tim Gleason,City Manager Matt Newell,P.E.,Public Works Director Robert Weil,Water Production Manager Jennifer Gunter,Watershed and Lake Manager SUBJECT: Resolution Authorizing Lake Decatur Watershed Farmland Conservation Program Agreement for Pond Improvements with Angela Kay Norman SUMMARY RECOMMENDATION: It is recommended that the City Council approve the attached resolution authorizing a Lake Decatur Watershed Farmland Conservation Program Agreement between the City of Decatur and Angela Kay Norman for the construction of a pond to control nutrients, sediment and erosion for a not to exceed cost to the City of$35,695. This amount represents 90%of the total project cost of$32,450 with a 10%contingency.The remainder of$3,245 will be paid by the property owner. BACKGROUND: The City's 2021 Watershed Management Plan is designed to significantly reduce Lake Decatur sedimentation and improve the lake's water quality through watershed conservation. City staff manages the watershed conservation efforts in-house with the assistance of Northwater Consulting,the City's Watershed Management Plan consultant. The pond is to be constructed on private land and is expected to result in these reductions over the 25-year life of the project: Nitrogen 6,050 pounds Phosphorus 975 pounds Sediment 1,850 tons LEGAL REVIEW: The agreement form was approved by the Legal Department on September 21,2022. PRIOR COUNCIL ACTION: 1. September 25,2023—Study session in which the Mayor and City Council received a briefing on the watershed protection program. 2. January 11,2024—Council reaffirmed Priority Goal#6, Collaborate with others in ensuring integrated and wholistic management of city-owned open spaces,transportation corridors,and especially Lake Decatur.Key Implementation Strategy#2 for this goal was also reaffirmed: Implement recommendations of a Lake Management Plan so that the quantity of sediment,silt and nitrates entering Lake Decatur is significantly reduced,and adopt other strategies designed to assure good water quality and watershed protection. POTENTIAL OBJECTIONS: There are no known objections to this resolution. INPUT FROM OTHER SOURCES: The project was designed by Martin Engineering Company in Springfield,Illinois.