R2022-188 Resolution Authorizing Amendment No. 3 for Professional Engineering Services Agreement with Northwater Consulting for Lake Decatur Watershed Management Plan, City Project 2019-38

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.._. ... near»vvv1S1a11vWa • BMP Engineering and Design. Since the Macon County Soil&Water Conservation District no longer provides these services and the City has been unable to recruit qualified Watershed Specialist applicants,Northwater will continue providing these services on farmland within the watershed to implement IEPA Section 319 grants and other erosion control/nutrient loss reduction projects as needed,and as directed by City staff,and train new City staff to execute these functions. • Lake Sedimentation and Bathyrnetry Program. Complete lake-wide bathymetry maps for post-dredging baseline to monitor sediment accumulation,research and public use. —%tershed Monitoring-10%(SA,QW. • Continue installing and overseeing water quality and sediment monitoring program in the Lake Decatur watershed and the lake itself,including data management. WATERSHED MANAGEMENT PLAN PHASE 4 BUDGET In depth budget details are on the last three pages of the attached scope of services with a cost not to exceed$880,585.76. h is estimated tha betwe 171,500 and$290,500 will be reimbursed to the itv from p;gy�ously awarded IEPA Section 319 and USDA RCPP gam,so the net cost to the City is estimated to be betweenand 9� .0,086 and$672,0$6. PRIOR COUNCIL ACTION: On February 24,2020,the City Council authorized a Professional Engineering Services Agreement with Northwater Consulting (Northwater)for Lake Decatur Watershed Management Plan,Phase 1 for a cost not to exceed$190,442.98. On October 5,2020,the City Council authorized Amendment No. I for Professional Engineering Services Agreement with Northwater Consulting for Lake Decatur Watershed Management Plan,Phase 2 for a cost not to exceed$299,463.22. On May 10,2021,the City Council received a presentation on the Lake Decatur Watershed Management Plan&Initiative Long- Term Strategy. On November 1,2021,the City Council authorized Amendment No.2 for Professional Engineering Services Agreement with Northwater Consulting for Lake Decatur Watershed Management Plan,Phase 3 for a cost not to exceed$465,183.47. COUNCIL PRIORITY GOALS: This project addresses City Council's Priority Goal#6,Key Implementation Strategy#3: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 proper watershed stewardship for the future. POTENTIAL OBJECTIONS: None foreseen. INPUT FROM OTHER SOURCES: This project's documents were submitted to the Legal Department for review on October 10,2022. STAFF REFERENCE: Matt Newell,Public Works Director,424-2747.Keith Alexander,Water Production Manager,424-2863, Jennifer Gunter,Watershed and Lake Manager,424-2834.Matt and Jeff Boeckler with Northwater will be present at the Council meeting. BUDGET/TIME IMPLICATIONS: These expenditures will be paid from the Water Capital budget. This phase(Phase 4)of the project will take approximately 14 months to complete. ATTACHMENTS: Description Type Resolutio on AuthorizingAmendrnent No 3 for Prof Engineeri g vc ereemeniwith Northwater Consulting RcsolLidon Fetter for Lake I?ecatur V3atershed Management Plan ittpa://decatur,novusagenda.corn/AgendsWeb/CoverSheeteapx?ItemID=4060 313