EMC's based on analysis of flow-averaged samples: Res Comm Ind Trans Mixed Agr Range Undev/Open Constituent 11 12 13 14 16/17# 2* 3* 7* Total Nitrogen (mg/L) 1.82 1.34 1.26 1.86 1.57 4.4 0.7 1.5 Total Kjeldahl Nitrogen (mg/L) 1.5 1.1 1.0 1.5 1.25 1.7 0.2 0.96 Nitrate + Nitrite (mg/L as N) 0.23 0.26 0.3 0.56 0.34 1.6 0.4 0.54 Total Phosphorus (mg/L) 0.57 0.32 0.28 0.22 0.35 1.3 <0.01 0.12 Dissolved Phosphorus (mg/L) 0.48 0.11 0.22 0.1 0.23 0.03 Suspended Solids (mg/L) 41 55.5 60.5 73.5 57.9 107 1 70 Dissolved Solids (mg/L) 134 185 116 194 157 1225 245 Total Lead (ug/L) 9 13 15 11 12 1.5 5.0 1.52 Total Copper (ug/L) 15 14.5 15 11 13.9 1.5 <10 Total Zinc (ug/L) 80 180 245 60 141 16 6 Total Cadmium (ug/L) 0.75 0.96 2 <1 1.05 1 <1 Total Chromium (ug/L) 2.1 10 7 3 5.5 <10 7.5 Total Nickel (ug/L) <10 11.8 8.3 4 7.3 BOD (mg/L) 25.5 23 14 6.4 17.2 4.0 0.5 COD (mg/L) 49.5 116 45.5 59 67.5 40 Oil and Grease (mg/L)** 1.7 9 3 0.4 3.5 Fecal Coliform (col./100 ml)** 20000 6900 9700 53000 22400 26000 200 Fecal Strep (col./100 ml)** 56000 18000 6100 26000 26525 # calculated as average of land uses 11-14 * these EMC's apply to all land uses in this category **avg concentrations base on instantaneous rather than flow-averaged samples