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Miscellaneous Nonmetallic Minerals, Scranton, North Dakota. NPDES permit ND0026077, in force until Jun 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 012 |
| pH | maximum | ≤ 9 SU | all year | 012 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 012 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 012 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 012 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 012 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 012 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 012 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 012 |
| Nitrogen, total [as N] | daily minimum | report only (mg/L) | all year | 012 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 012 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 012 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 012 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 012 |
| Phosphorus, total [as P] | daily minimum | report only (mg/L) | all year | 012 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 012 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 012 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 012 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 012 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 012 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 012 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 012 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 012 |
| Flow, total | total | report only (Mgal) | all year | 012 |
| Oil and grease visual | total | ≤ 0 N=0;Y=1 | all year | 012 |
| pH | minimum | ≥ 6 SU | all year | 013 |
| pH | maximum | ≤ 9 SU | all year | 013 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 013 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 013 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 013 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 013 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 013 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 013 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 013 |
| Nitrogen, total [as N] | daily minimum | report only (mg/L) | all year | 013 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 013 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 013 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 013 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 013 |
| Phosphorus, total [as P] | daily minimum | report only (mg/L) | all year | 013 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 013 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 013 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 013 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 013 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 013 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 013 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 013 |
| Flow, total | total | report only (Mgal) | all year | 013 |
| Oil and grease visual | total | ≤ 0 N=0;Y=1 | all year | 013 |
| pH | minimum | ≥ 6 SU | all year | 014 |
| pH | maximum | ≤ 9 SU | all year | 014 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 014 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 014 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 014 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 014 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 014 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 014 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 014 |
| Nitrogen, total [as N] | daily minimum | report only (mg/L) | all year | 014 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 014 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 014 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 014 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 014 |
| Phosphorus, total [as P] | daily minimum | report only (mg/L) | all year | 014 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 014 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 014 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 014 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 014 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 014 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 014 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 014 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 014 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 014 |
| Flow, total | total | report only (Mgal) | all year | 014 |
| Oil and grease visual | total | ≤ 0 N=0;Y=1 | all year | 014 |
| pH | minimum | ≥ 6 SU | all year | 015 |
| pH | maximum | ≤ 9 SU | all year | 015 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 015 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 015 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 015 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 015 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 015 |
| Solids, settleable | daily maximum | ≤ .5 mL/L | all year | 015 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 015 |
| Nitrogen, total [as N] | daily minimum | report only (mg/L) | all year | 015 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 015 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 015 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 015 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 015 |
| Phosphorus, total [as P] | daily minimum | report only (mg/L) | all year | 015 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 015 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 015 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 015 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 015 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 015 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 015 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 015 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 015 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 015 |
| Flow, total | total | report only (Mgal) | all year | 015 |
| Oil and grease visual | total | ≤ 0 N=0;Y=1 | all year | 015 |
Cited limits by parameter: North Dakota's rules and the federal ones.
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