EPA · Illinois · discharge permits by parameter
Hardness, total [as CaCO3] in Illinois
- 102Permits 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 Illinois permits that carry one for Hardness, total [as CaCO3]: 102 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 Illinois
- Nitrogen, nitrate total [as N] 19
- Nitrogen, Kjeldahl, total [as N] 41
- Nitrite + Nitrate total [as N] 59
- Phosphorus, total [as P] 378
- Phosphorus, dissolved 53
- Carbon, tot organic [TOC] 55
- Cyanide, weak acid, dissociable 110
- Cyanide, total [as CN] 237
- Cyanide, free [amenable to chlorination] 100
- Sulfide, total [as S] 4
- Chloride [as Cl] 245
- Sulfate, total [as SO4] 150
- Asbestos 3
- Fluoride, total [as F] 270
- Arsenic, total [as As] 273
- Arsenic, dry weight 17
- Barium, total [as Ba] 263
- Beryllium, total [as Be] 44
- Boron, total [as B] 84
- Cadmium, total [as Cd] 294
Hardness, total [as CaCO3] nationwide
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