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Federal facility (Sewerage Systems), Pierre, South Dakota. NPDES permit SD0026794, in force until Mar 31, 2027. Last 12 months: no values over a limit, 13 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | 30-day average | report only (deg C) | all year | 007 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 007 |
| Flow rate | 30-day average | report only (MGD) | all year | 007 |
| Flow rate | daily maximum | report only (MGD) | all year | 007 |
| pH | daily minimum | ≥ 6.6 SU | all year | 007 |
| pH | daily maximum | ≤ 8.6 SU | all year | 007 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 007 |
| Floating solids, waste or visible foam-visual | daily maximum | < 1 N=0;Y=1 | all year | 007 |
| Oil and grease visual | daily maximum | < 1 N=0;Y=1 | all year | 007 |
| Temperature, water deg. centigrade | 30-day average | report only (deg C) | all year | 014 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 014 |
| Flow rate | 30-day average | report only (MGD) | all year | 014 |
| Flow rate | daily maximum | report only (MGD) | all year | 014 |
| pH | daily minimum | ≥ 6.6 SU | all year | 014 |
| pH | daily maximum | ≤ 8.6 SU | all year | 014 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 014 |
| Floating solids, waste or visible foam-visual | daily maximum | < 1 N=0;Y=1 | all year | 014 |
| Oil and grease visual | daily maximum | < 1 abst=0;prst=1 | all year | 014 |
Cited limits by parameter: South Dakota's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/SD0026794 · MCP: https://passage-data.com/mcp