EPA · discharge permits by pollutant and parameter
Redox [oxidation reduction potential]
- 4Permits carrying a limit
- 0With a recorded exceedance
- 0States
EPA identifies this parameter by code 00090. A permit listed here carries a numeric limit on redox [oxidation reduction potential] in its discharge; an exceedance is a monitoring result above that limit, as reported to EPA.
Other pollutants
- Stream flow, instantaneous 1,231
- Tide stage 18
- Depth, max of sample 14
- Turbidity 7,112
- Transparency, secchi disc 7
- Color [PT-CO units] 245
- Color, apparent [unfiltered sample] 4
- Color, spectrophoto-metric filter 139
- Color 15
- Odor [Threshold Number] 9
- Conductivity 837
- Specific conductance 2,429
- Dry days preceding precipitation event 27
- Rainfall duration 31
- Hydrogen peroxide 49
- Solids, total susp per production 7
- Total production - mass 180
- Nitrogen, ammonia per cfs of streamflow 4
- Oil and grease per production 9
- Sulfate [as S] 282
Permits
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| NORTHSHORE MINING CO - SILVER BAY | MN0055301 | SILVER BAY | MN | Major | City of Silver Bay-Frontal Lake Superior | |
| BLUE HERON PAPER CO. | OR0000566 | OREGON CITY | OR | Major | WILLAMETTE RIVER(RM 27.5&26.1) | |
| NKC SEWAGE TREATMENT SLUDGE LF | MO0107263 | NORTH KANSAS CITY | MO | Industrial stormwater | Minor | Tributary to Missouri R. |
| MISSOURI CITY POWER STATION - CLOSED | MO0004588 | MISSOURI CITY | MO | Industrial stormwater | Minor | Tributary to Dry Creek |
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