Passage Data · Check a report · Use it from your AI
Alkalies And Chlorine, Bighorn, Wyoming. NPDES permit WY0056308, in force until Oct 31, 2030. Last 12 months: no values over a limit, 6 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| pH | instantaneous minimum | ≥ 6.5 SU | all year |
| pH | instantaneous minimum | ≥ 6.5 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.32 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.32 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.02 mg/L | May–Sep |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.02 mg/L | May–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.11 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.11 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.11 mg/L | May–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.11 mg/L | May–Sep |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Duration | monthly total | report only (d) | all year |
| Duration | monthly total | report only (d) | all year |
| Chlorine, total residual | daily maximum | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .011 mg/L | all year |
| E. coli | monthly geometric mean | ≤ 126 MPN/100mL | all year |
| E. coli | monthly geometric mean | ≤ 126 MPN/100mL | all year |
| E. coli | daily maximum | ≤ 235 MPN/100mL | all year |
| E. coli | daily maximum | ≤ 235 MPN/100mL | all year |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year |
| Flow | monthly average | ≤ .02 MGD | all year |
| Flow | monthly average | ≤ .02 MGD | all year |
| Flow | daily maximum | report only (MGD) | all year |
| Flow | daily maximum | report only (MGD) | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| Produced water, oil and grease | daily maximum | = 10 mg/L | all year |
| Produced water, oil and grease | daily maximum | = 10 mg/L | all year |
Cited limits by parameter: Wyoming's rules and the federal ones.
· 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/WY0056308 · MCP: https://passage-data.com/mcp