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Table 14: Common Construction Pollutants Material/Chemical Physical Description Stormwater Pollutants Location* Pesticides Various colored to Chlorinated Herbicides used for (insecticides, colorless liquid, hydrocarbons, noxious weed control fungicides, powder, pellets, or organophosphates, herbicides, grains carbamates, arsenic rodenticides) Fertilizer Liquid or solid grains Nitrogen, phosphorous Newly seeded areas Cleaning solvents Colorless, blue, or Perchloroethylene, No equipment cleaning yellow-green liquid methylene chloride, allowed in project limits trichloroethylene, petroleum distillates Asphalt Black solid Oil, petroleum distillates Streets and roofing Concrete White solid/grey liquid Limestone, sand, pH, Curb and gutter, building chromium construction Curing compounds Creamy white liquid Naphtha Curb and gutter Hydraulic oil/fluids Brown oily petroleum Mineral oil Leaks or broken hoses hydrocarbon from equipment Gasoline Colorless, pale brown Benzene, ethyl benzene, Secondary containment / or pink petroleum toluene, xylene, MTBE staging area hydrocarbon Diesel Fuel Clear, blue-green to Petroleum distillate, oil & Secondary containment / yellow liquid grease, naphthalene, staging area xylenes Kerosene Pale yellow liquid Coal oil, petroleum Secondary containment / petroleum distillates staging area hydrocarbon Antifreeze/coolant Clear green/yellow Ethylene glycol, propylene Leaks or broken hoses liquid glycol, heavy metals from equipment (copper, lead, zinc) Sanitary toilets Various colored liquid Bacteria, parasites, and Staging area viruses Construction materials Granular fill Various colored solids Sediment Stockpile / fill areas Subbase course Gray/brown solid Sediment, dust Stockpile Topsoil Brown solid Sediment Stockpile Mulch Various colored solid Sediment, debris Staging area Seed Brown/yellow solid Nutrients, debris Staging area HDPE Storm Pipe Black solid Staging area SDR-35, SDR-21 Various colored solid Staging area PVC Pipe Metals Frames and Gray solid Staging area Grates Joint Sealant Light gray viscous Polyurethane Staging area solid *(Area where material/chemical is used on-site) Stormwater Pollution Prevention Plan Page 20 2241067 Page 110 of 1493