Passage Data · Check a report · Use it from your AI
Bituminous Coal And Lignite - Surface, Gillette, Wyoming. NPDES permit WY0026018, in force until Dec 31, 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 | 013 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 013 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 013 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 013 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 013 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 013 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 013 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 013 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 013 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 013 |
| Duration | monthly total | report only (d/mo) | all year | 013 |
| Flow | monthly average | report only (MGD) | all year | 013 |
| Flow | daily maximum | report only (MGD) | all year | 013 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 014 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 014 |
| BOD, 5-day, 20 deg. C | instantaneous maximum | ≤ 90 mg/L | all year | 014 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 014 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 014 |
| Solids, total suspended | monthly average | ≤ 100 mg/L | all year | 014 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 014 |
| Solids, total suspended | weekly average | ≤ 150 mg/L | all year | 014 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 014 |
| Solids, total suspended | daily maximum | ≤ 300 mg/L | all year | 014 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 014 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 014 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 014 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 014 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 014 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 014 |
| Duration | monthly total | report only (d/mo) | all year | 014 |
| Chlorine, total residual | daily maximum | ≤ .011 mg/L | all year | 014 |
| E. coli | monthly average | ≤ 126 #/100mL | May–Sep | 014 |
| E. coli | monthly average | ≤ 630 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 014 |
| E. coli | daily maximum | ≤ 576 #/100mL | May–Sep | 014 |
| E. coli | daily maximum | ≤ 630 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 014 |
| Flow | monthly average | report only (MGD) | all year | 014 |
| Flow | daily maximum | report only (MGD) | all year | 014 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 018 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 018 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 018 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 018 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 018 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 018 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 018 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 018 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 018 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 018 |
| Duration | monthly total | report only (d/mo) | all year | 018 |
| Flow | monthly average | report only (MGD) | all year | 018 |
| Flow | daily maximum | report only (MGD) | all year | 018 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 019 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 019 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 019 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 019 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 019 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 019 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 019 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 019 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 019 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 019 |
| Duration | monthly total | report only (d/mo) | all year | 019 |
| Flow | monthly average | report only (MGD) | all year | 019 |
| Flow | daily maximum | report only (MGD) | all year | 019 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 021 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 021 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 021 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 021 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 021 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 021 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 021 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 021 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 021 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 021 |
| Duration | monthly total | report only (d/mo) | all year | 021 |
| Flow | monthly average | report only (MGD) | all year | 021 |
| Flow | daily maximum | report only (MGD) | all year | 021 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 029 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 029 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 029 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 029 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 029 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 029 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 029 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 029 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 029 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 029 |
| Duration | monthly total | report only (d/mo) | all year | 029 |
| Flow | monthly average | report only (MGD) | all year | 029 |
| Flow | daily maximum | report only (MGD) | all year | 029 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 031 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 031 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 031 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 031 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 031 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 031 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 031 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 031 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 031 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 031 |
| Duration | monthly total | report only (d/mo) | all year | 031 |
| Flow | monthly average | report only (MGD) | all year | 031 |
| Flow | daily maximum | report only (MGD) | all year | 031 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 033 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 033 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 033 |
| Solids, total suspended | instantaneous maximum | ≤ 70 mg/L | all year | 033 |
| Solids, settleable | instantaneous maximum | ≤ .5 mL/L | all year | 033 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 033 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 033 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 9 mg/L | all year | 033 |
| Iron, dissolved [as Fe] | instantaneous maximum | ≤ 1000 ug/L | all year | 033 |
| Manganese, dissolved [as Mn] | instantaneous maximum | ≤ 1462 ug/L | all year | 033 |
| Duration | monthly total | report only (d/mo) | all year | 033 |
| Flow | monthly average | report only (MGD) | all year | 033 |
| Flow | daily maximum | report only (MGD) | all year | 033 |
Cited limits by parameter: Wyoming's rules and the federal ones.
Same industry: the 15 Coal Mining permits in Wyoming.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WY0026018 · MCP: https://passage-data.com/mcp