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

What this page shows

This page covers Clean Water Act discharge permits in MT with limits on Hardness, total [as CaCO3]. It lists 57 permits in MT with a limit on this parameter and 45 permits in MT with a recorded violation of this parameter.