Public Health Parameters | Maximum Contaminant Levels |
| 1,1,1-Trichloroethane | 0.2 mg/l |
| 1,1,2-Trichloroethane | 0.005 mg/l |
| 1,1-Dichloroethylene | 0.007 mg/l |
| 1,2,4-Trichlorobenzene (1,2,4-TCB) | 0.07 mg/l |
| 1,2-Dibromo-3-chloropropane (DBCP) | 0.0002 mg/l |
| 1,2-Dichloroethane | 0.005 mg/l |
| 1,2-Dichloropropane | 0.005 mg/l |
| 2,4,5-TP Silvex | 0.05 mg/l |
| 2,4-D | 0.07 mg/l |
| Acrylamide | (Reserved) |
| Alachlor | 0.002 mg/l |
| Aldicarb | (Reserved) |
| Antimony | 0.006 mg/l |
| Arsenic | 0.010 mg/l |
| Asbestos | 7.00E+06 fibers/liter with fiber length > 10 microns |
| Atrazine | 0.003 mg/l |
| Barium | 2 mg/l |
| Benzene | 0.005 mg/l |
| Benzo(a)pyrene (PAHs) | 0.0002 mg/l |
| Beryllium | 0.004 mg/l |
| Cadmium | 0.005 mg/l |
| Carbofuran | 0.04 mg/l |
| Carbon Tetrachloride | 0.005 mg/l |
| Chlordane | 0.002 mg/l |
| Chlorobenzene | 0.1 mg/l |
| Chromium | 0.1 mg/l |
| cis-1,2-Dichloroethylene | 0.07 mg/l |
| Copper | 1.3 mg/l |
| Cyanide | 0.2 mg/l |
| Dalapon | 0.2 mg/l |
| Di(2-ethylhexyl)adipate (Adipates) | 0.4 mg/l |
| Di(2-ethylhexyl)phthalate (Phthalates) | 0.006 mg/l |
| Dibromomethane | (Reserved) |
| Dichloromethane (Methylene Chloride) | 0.005 mg/l |
| Dinoseb | 0.007 mg/l |
| Dioxin (2,3,7,8-TCDD) | 3.00E-08 mg/l |
| Diquat | 0.02 mg/l |
| Endothall | 0.1 mg/l |
| Endrin | 0.002 mg/l |
| Epichlorohydrin | (Reserved) |
| Ethylbenzene | 0.7 mg/l |
| Ethylene Dibromide | 0.00005 mg/l |
| Fluoride | 4.0 mg/l |
| Glyphosate | 0.7 mg/l |
| Heptachlor | 0.0004 mg/l |
| Heptachlor Epoxide | 0.0002 mg/l |
| Hexachlorobenzene | 0.001 mg/l |
| Hexachlorocyclopentadiene | 0.05 mg/l |
| Lead | 0.015 mg/l |
| Lindane | 0.0002 mg/l |
| Mercury | 0.002 mg/l |
| Methoxychlor | 0.04 mg/l |
| Molybdenum | (Reserved) |
| Nickel | (Reserved) |
| Nitrate (as N) | 10 mg/l |
| Nitrite (as N) | 1 mg/l |
| o-Dichlorobenzene | 0.6 mg/l |
| Oxamyl (Vydate) | 0.2 mg/l |
| p-Dichlorobenzene | 0.075 mg/l |
| Pentachlorophenol | 0.001 mg/l |
| Picloram | 0.5 mg/l |
| Polychlorinated biphenyls (PCBs) | 0.0005 mg/l |
| Selenium | 0.05 mg/l |
| Simazine | 0.004 mg/l |
| Sodium | (Reserved) |
| Styrene | 0.1 mg/l |
| Tetrachloroethylene | 0.005 mg/l |
| Thallium | 0.002 mg/l |
| Toluene | 1 mg/l |
| Total Trihalomethanes (TTHMs) | 0.10 mg/l |
| Toxaphene | 0.003 mg/l |
| trans-1,2-Dichloroethylene | 0.1 mg/l |
| Trichloroethylene | 0.005 mg/l |
| Vanadium | (Reserved) |
| Vinyl Chloride | 0.002 mg/l |
| Xylenes | 10 mg/l |
| Radionuclides: |  |
| Gross alpha particle activity (including radium-226 but excluding radon and uranium) | 15 pCi/l |
| Gross beta particle activity | 4 mrem/yr |
| Combined radium-226 and radium-228 | 5 pCi/l |
| Radon | (Reserved) |
| Uranium | 0.030 mg/l |
| |
| Microbiology: | |
| Total coliform | (Reserved) |
| |
Other Parameters Affecting Use | |
| Aluminum | 0.05 mg/l |
| Chloride | 250 mg/l |
| Foaming agents | 0.5 mg/l |
| Iron | 0.3 mg/l |
| Manganese | 0.05 mg/l |
| pH | 6.5 - 8.5 standard pH units |
| Silver | 0.10 mg/l |
| Sulfate | 250 mg/l |
| Total Dissolved Solids (TDS) | 500 mg/l |
| Zinc | 5 mg/l |
| |
| |