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§ 141.51 Maximum contaminant level goals for inorganic contaminants.
(a) [Reserved]
(b) MCLGs for the following contaminants are as indicated:
Contaminant | MCLG (mg/l) |
---|---|
Antimony | 0.006 |
Arsenic | zero 1 |
Asbestos | 7 Million fibers/liter (longer than 10 µm). |
Barium | 2 |
Beryllium | .004 |
Cadmium | 0.005 |
Chromium | 0.1 |
Copper | 1.3 |
Cyanide (as free Cyanide) | .2 |
Fluoride | 4.0 |
Lead | zero |
Mercury | 0.002 |
Nitrate | 10 (as Nitrogen). |
Nitrite | 1 (as Nitrogen). |
Total Nitrate + Nitrite | 10 (as Nitrogen). |
Selenium | 0.05 |
Thallium | .0005 |