Concentrations of contaminants found in stormwater.

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Land use TSS1 NO2+NO31 TN1 TP1 Cl1 Cu2 Zn2 Ni2 Cd2 Cr2 CN2 Oil/grease2 VOCs2 Pesticides2 FC3 EC3 FS3
Commercial
Number of sites 56 50 13 56 -- 60 62 40 51 38 2 44 4 1 4 -- 3

1concentrations are in milligrams per liter
2concentrations are in micrograms per liter
3FC+fecal coliform; EC=E. coli; FS=fecal streptococci; concentrations are in