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VI. FINDINGS OF REVIEW AND ANALYSIS OF TMDLS The GIS and P8 modeling results were analyzed and interpreted taking into consideration the requirements of the TMDLs for Hardwood Creek, Bald Eagle Lake, and Peltier/Centerville Lake. The findings of this analysis as it relates to potential City activities are summarized below: Hardwood Creek TMDL • TMDL requires reducing existing total suspended solids concentrations from 22 milligrams/liter to 19 milligrams/liter. • TMDL anticipates 6% reduction in BOD and a 4 % reduction in TSS. • Target reductions should be achieved through proposed in -channel improvements. • City anticipates complying with target requirements in the future by implementing RCWD permit requirements as land develops or redevelops. Bald Eagle Lake TMDL • TMDL target is a 38% reduction in existing total phosphorus (TP) from the watershed tributary to Bald Eagle Lake. • TMDL anticipates that if TP concentration from external load is limited to 177 micrograms/liter, the 38% reduction can be achieved. • 3,523 acres within the City of Hugo is tributary to Bald Eagle Lake. • Based on P8 modeling, the total phosphorus yield from Clearwater and Hardwood Creek watersheds ranges from .40-.51 pounds per acre per year and the total phosphorus concentration ranges from .37-.40 milligrams/liter. • City anticipates working towards target reduction through the implementation of Rice Creek Watershed District rules for land that develops or redevelops, enhancing existing stormwater BMPs, implementing new regional BMPs. Centerville and Peltier Lake TMDL TMDL anticipates a need to reduce external phosphorus load between 46- 62 %. Target waste load allocation for the City of Hugo is estimated to range from 514 pounds (62% reduction) to 725 pounds (46% reduction). Daily waste load allocation is estimated to range from 4.2-5.9 pounds per day. CIP for Storm Water Projects Within the City of Hugo City of Hugo, MN WSB Project No. 1687-85 Page 16