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2021 MS4 Annual Report <br />TMDL: Phosphorus <br />Table 4.13 Bennett Lake TMDL Summary <br />Required <br />Total <br />Existing <br />Existing <br />TMDL <br />TMDL <br />Percent <br />Load <br />Phosphorus <br />Conditions <br />Conditions <br />Allocation <br />Allocation <br />Reduction <br />Source <br />(Ibs/GS1( <br />{Ibs/day( <br />(Ibs/GS') <br />(Ibs/day) <br />Reduction <br />(%( <br />(Ibs/GSr( <br />Wasteload Allocation (Permitted Sources} <br />City of Roseville <br />M5400047 <br />Ramsey County <br />M5400191 <br />NPOES-Permitted <br />Construction and <br />0.9 <br />0.0071 <br />0.9 <br />0.0071 <br />0 <br />0% <br />Industrial <br />Stormwater <br />Mn DOT Metro <br />District <br />9.2 <br />0.0758 <br />1.6 <br />0.0133 <br />7.6 <br />82% <br />MS400170 <br />Total Wasteload <br />70.1 <br />0.5744 <br />22.6 <br />0.1954 <br />47.4 <br />67.7% <br />Sources <br />Lead Allocations (Non -Permitted Sources) <br />Atmospheric <br />23 <br />0.0191 <br />2.3 <br />0.0191 <br />0 <br />0% <br />Deposition <br />Internal Sources' <br />90.3 <br />0.7405 <br />18.1 <br />0.1481 <br />72.3 <br />80% <br />Total Load <br />92 7 <br />0.7596 <br />20.4 <br />0.1672 <br />723 <br />78% <br />Sources <br />Margin of <br />4.8 <br />0.0392 <br />Safty' e <br />Total <br />162.7 <br />1.3339 <br />47.8 <br />0.3918 <br />119.7 <br />74% <br />60.0 0.4915 20.1 0.1650 39.8 66% <br />s Margin of safety Implicitly included In modeling assumptions (see Sectlon 4.3A). <br />1 GS = Growing Season of 2005 (June 1 through September 30). <br />a Reflects the wm of all Internal sources of phosphorus (e.g., Cudy-leaf Pondweed, sediment release, sediment resuspenslon <br />due to wind and carp activity, etc.). <br />y.: <br />lye <br />BOraaw <br />u: <br />feu <br />+nor <br />e e.• <br />1 <br />CaLiaiv <br />Figure 49 MS4s in Bennett lake Watershed <br />