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Industrial or other facility, Dallas, Wyoming. NPDES permit WY0095346, in force until Feb 28, 2027. Last 12 months: over a limit 10 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| October 2025 | pH, instantaneous maximum | ≤ 6.9 SU | ≤ 6.5 SU |
| October 2025 | pH, instantaneous minimum | ≥ 6.9 SU | ≥ 9 SU |
| December 2025 | pH, instantaneous maximum | ≤ 6.9 SU | ≤ 6.5 SU |
| December 2025 | pH, instantaneous minimum | ≥ 6.9 SU | ≥ 9 SU |
| February 2026 | pH, instantaneous maximum | 7.4 SU | ≤ 6.5 SU |
| February 2026 | pH, instantaneous minimum | 7.4 SU | ≥ 9 SU |
| April 2026 | pH, instantaneous maximum | 7.4 SU | ≤ 6.5 SU |
| April 2026 | pH, instantaneous minimum | 7.4 SU | ≥ 9 SU |
| June 2026 | pH, instantaneous maximum | 7.3 SU | ≤ 6.5 SU |
| June 2026 | pH, instantaneous minimum | 7.3 SU | ≥ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 001 |
| pH | instantaneous maximum | ≤ 6.5 SU | all year | 001 |
| pH | instantaneous minimum | ≥ 9 SU | all year | 001 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | 001 |
| Radium 226, total | daily maximum | ≤ 22 pCi/L | all year | 001 |
| Chloride | daily maximum | ≤ 282 mg/L | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Flow | monthly average | ≤ .5 MGD | all year | 001 |
| Flow | monthly average | ≤ .5 MGD | all year | 001 |
| Sulfate | daily maximum | ≤ 3000 mg/L | all year | 001 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| pH | instantaneous maximum | report only (SU) | all year | DMP2 |
| pH | instantaneous maximum | report only (SU) | all year | DMP2 |
| pH | instantaneous minimum | report only (SU) | all year | DMP2 |
| pH | instantaneous minimum | report only (SU) | all year | DMP2 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | DMP2 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | DMP2 |
| Radium 226, total | daily maximum | report only (pCi/L) | all year | DMP2 |
| Radium 226, total | daily maximum | report only (pCi/L) | all year | DMP2 |
| Chloride | daily maximum | report only (mg/L) | all year | DMP2 |
| Chloride | daily maximum | report only (mg/L) | all year | DMP2 |
| Flow | monthly average | report only (MGD) | all year | DMP2 |
| Flow | monthly average | report only (MGD) | all year | DMP2 |
| Flow | daily maximum | report only (MGD) | all year | DMP2 |
| Flow | daily maximum | report only (MGD) | all year | DMP2 |
Cited limits by parameter: Wyoming'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/WY0095346 · MCP: https://passage-data.com/mcp