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Federal facility (Airports, Flying Fields, & Services), Cheyenne, Wyoming. NPDES permit WY0028576, in force until Nov 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 005 |
| Duration | monthly total | report only (d) | all year | 005 |
| Flow | daily maximum | report only (MGD) | all year | 005 |
| Flow | monthly average | report only (MGD) | all year | 005 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 005 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 006 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 006 |
| Duration | monthly total | report only (d) | all year | 006 |
| Flow | daily maximum | report only (MGD) | all year | 006 |
| Flow | monthly average | report only (MGD) | all year | 006 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 006 |
Cited limits by parameter: Wyoming's rules and the federal ones.
Same industry: the 3 Transportation by Air 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/WY0028576 · MCP: https://passage-data.com/mcp