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Table 3-1. Existing Land Uses, Impervious Percentages, Curve Numbers, <br />and Total Phosphorus Concentrations. <br />LAND USE DESCRIPTION 1 <br />ESTIMATED <br />IMPERVIOUS <br />A3 <br />B3 <br />C3 <br />03 <br />TP a <br />[MG/L] l <br />AGRICULTURAL <br />0% <br />67 <br />78 <br />85 <br />89 <br />0.32 <br />FARMSTEAD <br />10% <br />59 <br />74 <br />82 <br />86 <br />0.46 <br />INSTITUTIONAL <br />65% <br />49 <br />69 <br />79 <br />84 <br />0.18 <br />MAJOR HIGHWAY <br />75% <br />83 <br />89 <br />92 <br />93 <br />0.25 <br />PARK, RECREATIONAL, OR <br />PRESERVE <br />10% <br />39 <br />61 <br />74 <br />80 <br />0.04 <br />RETAIL AND OTHER <br />COMMERCIAL <br />75% <br />89 <br />92 <br />94 <br />95 <br />0.22 <br />SINGLE FAMILY ATTACHED <br />65% <br />77 <br />85 <br />90 <br />92 <br />0.40 <br />SINGLE FAMILY DETACHED <br />40% <br />51 <br />68 <br />79 <br />84 <br />0.30 <br />UNDEVELOPED <br />0% <br />30 <br />58 <br />71 <br />78 <br />0.04 <br />1 Metropolitan Council Generalized Land Use 2016 <br />2 Lino Lakes 2030 Comprehensive Plan <br />3 NRCS National Engineering Handbook <br />4 MPCA Minnesota Stormwater Manual <br />Table 3-2. Existing Land Uses by Region (in acres) <br />Land Use Description <br />HUGO <br />EAST <br />CENTRAL <br />WEST <br />TOTAL <br />Agricultural <br />59.2 <br />385.8 <br />400.6 <br />98.4 <br />944.1 <br />Farmstead <br />4.7 <br />7.5 <br />0.0 <br />0.0 <br />12.2 <br />Institutional <br />0.5 <br />0.0 <br />0.4 <br />0.0 <br />0.9 <br />Major Highway <br />0.0 <br />13.6 <br />24.8 <br />0.0 <br />38.4 <br />Park, Recreational, or Preserve <br />15.4 <br />0.0 <br />0.0 <br />0.0 <br />15.4 <br />Retail and Other Commercial <br />0.0 <br />1.5 <br />0.0 <br />0.0 <br />1.5 <br />Single Family Attached <br />21.2 <br />0.0 <br />0.0 <br />0.0 <br />21.2 <br />Single Family Detached <br />32.5 <br />6.0 <br />7.8 <br />4.2 <br />50.5 <br />Undeveloped <br />82.1 <br />119.5 <br />13.7 <br />49.9 <br />265.2 <br />Totals <br />215.6 <br />534.1 <br />447.3 <br />152.6 <br />1,349.6 <br />3.2 Upper Rice Creek <br />The URC model was updated to split existing catchments MRC_RC_001 into MRC_RC_001 and <br />MRC_RC_001.5 along Peltier Lake Drive on the west CSMP boundary. Existing catchment <br />MRCRC_002 was also split into two subcatchments (MRC RC_002 and MRC_RC_002.5) along the <br />southwest CSMP boundary. A nearly five -acre discrepancy in drainage area between the received model <br />input and GIS data was noticed at CWC_RC_PELTIER_008. As a precaution, all drainage areas were <br />recalculated, but this subcatchment appeared to be an anomaly. <br />The URC model was re -run and the inflow hydrograph at junction PELTIER_LAKE was exported from <br />InfoSWMM and inserted into the existing conditions Rice Creek HEC -RAS model at storage area SA <br />Comprehensive Stormwater Management Plan <br />Northeast Lino Lakes Drainage Improvement Project <br />WSB Project No. 2929-79 <br />Page 10 <br />