EPA · Illinois · discharge permits by parameter

Cyanide, total [as CN] in Illinois

• 237Permits carrying a limit
• 13With a recorded exceedance
• 2,531Nationwide

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 Cyanide, total [as CN]: 237 permits, of which 13 have a recorded exceedance. Nationwide the same parameter appears in 2,531 permits. Each row below is one permit, and it opens the agency’s own record for that permit.

Permits

Other pollutants in Illinois

• Oil & Grease 361
• Nitrogen, total [as N] 248
• Nitrogen, ammonia total [as N] 1,320
• 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, free [amenable to chlorination] 100
• Sulfide, total [as S] 4
• Hardness, total [as CaCO3] 102
• 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

Cyanide, total [as CN] nationwide

What this page shows

This page from the EPA NPDES register covers Clean Water Act discharge permits in IL with limits on the pollutant parameter Cyanide, total [as CN]. It lists 237 permits in IL with a limit on this parameter and 167 permits in IL with a recorded violation of this parameter.