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

What this page shows

This page covers Clean Water Act discharge permits in IL with limits on the pollutant parameter Hardness, total [as CaCO3]. It lists 102 permits in IL with a limit on this parameter and 71 permits in IL with a recorded violation of this parameter.