EPA · Iowa · discharge permits by parameter
Chromium, hexavalent [as Cr] in Iowa
- 15Permits carrying a limit
- 6With a recorded exceedance
- 1,004Nationwide
A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Iowa permits that carry one for Chromium, hexavalent [as Cr]: 15 permits, of which 6 have a recorded exceedance. Nationwide the same parameter appears in 1,004 permits. Each row below is one permit, and it opens the agency’s own record for that permit.
Permits
| Permit holder | NPDES ID | City | Program | Discharger | Receiving water |
|---|---|---|---|---|---|
| MASON CITY, CITY OF STP | IA0057169 | MASON CITY | Publicly owned treatment works | Major | Mason Creek-Winnebago River |
| INDEPENDENCE CITY OF STP | IA0036510 | INDEPENDENCE | Publicly owned treatment works | Major | Malone Creek-Wapsipinicon River |
Other pollutants in Iowa
- Nitrogen, ammonia total [as N] 863
- Nitrogen, nitrate total [as N] 80
- Nitrogen, Kjeldahl, total [as N] 211
- Phosphorus, total [as P] 191
- Acids, total volatile [as acetic acid] 4
- Cyanide, total [as CN] 30
- Chloride [as Cl] 208
- Sulfate, total [as SO4] 52
- Arsenic, total [as As] 5
- Cadmium, total [as Cd] 24
- Chromium, total [as Cr] 22
- Copper, total [as Cu] 89
- Iron, total [as Fe] 107
- Iron, dissolved [as Fe] 3
- Lead, total [as Pb] 21
- Manganese, total [as Mn] 5
- Thallium, total [as Tl] 5
- Nickel, total [as Ni] 15
- Silver, total [as Ag] 19
- Zinc, total [as Zn] 35
Chromium, hexavalent [as Cr] nationwide
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