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Water Supply, Unknown, Wyoming. NPDES permit WY0001392 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 18 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Sodium, dissolved [as Na] | daily minimum | report only (mg/L) | all year | 001 |
| Aluminum, dissolved [as Al] | daily maximum | ≤ 750 ug/L | all year | 001 |
| Duration | monthly total | report only (d) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Sulfate | daily maximum | report only (mg/L) | all year | 001 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Sodium, dissolved [as Na] | daily minimum | report only (mg/L) | all year | 002 |
| Aluminum, dissolved [as Al] | daily maximum | ≤ 750 ug/L | all year | 002 |
| Duration | monthly total | report only (d) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 002 |
| Flow | monthly average | report only (MGD) | all year | 002 |
| Flow | daily maximum | report only (MGD) | all year | 002 |
| Sulfate | daily maximum | report only (mg/L) | all year | 002 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 002 |
Cited limits by parameter: Wyoming's rules and the federal ones.
Same industry: the 5 Water Supply permits in Wyoming.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WY0001392 · MCP: https://passage-data.com/mcp