Table 1 – Numerical Groundwater Standards

Table 1 – Numerical Groundwater Standards. ------------------------------------------------------ Contaminant Standard (PPB) ------------------------------------------------------ Alachlor 2 Aldicarb 3 Aldicarb Sulfone 2 ------------------------------------------------------ Aldicarb Sulfoxide 4 Antimony 6 Arsenic 50 Atrazine 3 ------------------------------------------------------ Barium 2,000 Benzene 5 Benzo(a) pyrene 0.2 ------------------------------------------------------ Beryllium 4 Cadmium 5 Carbofuran 40 ------------------------------------------------------ Carbon Tetrachloride 5 Chlordane 2 Chromium 100 ------------------------------------------------------ Cyanide 200 2,4-D 70 Dalapon 200 ------------------------------------------------------ Dibromochloropropane (DBCP) 0.2 o-Dichlorobenzene 600 p-Dichlorobenzene 75 ------------------------------------------------------ 1,2-Dichloroethane 5 1,1-Dichloroethylene 7 cis-1,2-Dichloroethylene 70 ------------------------------------------------------ trans-1,2-Dichloroethylene 100 Dichloromethane (Methylene Chloride) 5 1,2-Dichloropropane 5 ------------------------------------------------------ Di(2-ethylhexyl)adipate 400 Di(2-ethylhexyl)phthalate 6 Dinoseb 7 ------------------------------------------------------ Diquat 20 Endothall 100 Endrin 2 ------------------------------------------------------ Ethylbenzene 700 Ethylene Dibromide (EDB) 0.05 Fluoride 4 ------------------------------------------------------ Glyphosate 700 Heptachlor 0.4 Heptachlor Epoxide 0.2 ------------------------------------------------------ Hexachlorobenzene 1 Hexachlorocyclopentadiene 50 Lead 50 ------------------------------------------------------ Lindane 0.2 Mercury 2 Methoxychlor 40 ------------------------------------------------------ Monochlorobenzene 100 Nickel 100 Nitrates (as N) 10,000 ------------------------------------------------------ Nitrites (as N) 1,000 Nitrites & Nitrates (as N) 10,000 Oxamyl (Vydate) 200 ------------------------------------------------------ Pentachlorophenol 1 PCB's 0.5 Picloram 500 ------------------------------------------------------ Selenium 50 Silver 50 Simazine 4 ------------------------------------------------------ Styrene 100 2,3,7,8-TCDD (Dioxin) 0.00003 2,4,5-TP 50 ------------------------------------------------------ Tetrachloroethylene 5 Thallium 2 Toluene 1,000 ------------------------------------------------------ Toxaphene 3 1,2,4-Trichlorobenzene 70 1,1,1-Trichloroethane 200 ------------------------------------------------------ 1,1,2-Trichloroethane 5 Trichloroethylene 5 Vinyl Chloride 2 ------------------------------------------------------ Xylene 10,000 ------------------------------------------------------