EPA · Montana · discharge permits by parameter
Hardness, total [as CaCO3] in Montana
- 57Permits carrying a limit
- 0With a recorded exceedance
- 2,593Nationwide
A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Montana permits that carry one for Hardness, total [as CaCO3]: 57 permits, of which 0 have a recorded exceedance. Nationwide the same parameter appears in 2,593 permits. Each row below is one permit, and it opens the agency’s own record for that permit.
Permits
Other pollutants in Montana
- Nitrogen, nitrite total [as N] 7
- Nitrogen, nitrate total [as N] 23
- Nitrogen, Kjeldahl, total [as N] 234
- Nitrite + Nitrate total [as N] 341
- Nitrogen, inorganic total 6
- Phosphorus, total [as P] 263
- Carbon, tot organic [TOC] 6
- Cyanide, total [as CN] 26
- Sulfide, total [as S] 6
- Sulfide, dissolved, [as S] 3
- Calcium, total [as Ca] 4
- Calcium, total recoverable 5
- Magnesium, total recoverable 4
- Sodium, total recoverable 4
- Magnesium, total [as Mg] 4
- Sodium, total [as Na] 3
- Sodium adsorption ratio 8
- Chloride [as Cl] 82
- Sulfate, total [as SO4] 32
- Fluoride 5
Hardness, total [as CaCO3] nationwide
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