NPDES permit WY0021491 · Minor POTW · effective, expires 2029-01-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-06-30. Most often over: BOD, 5-day, percent removal (5).
Reports are due about 28 days after each monitoring period ends (the most common figure among WY permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 45 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 45 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 333 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 333 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | pH | INST MIN | >= 6.5 SU | all year |
| 001 | pH | INST MIN | >= 6.5 SU | all year |
| 001 | pH | INST MAX | <= 9 SU | all year |
| 001 | pH | INST MAX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 83 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 83 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 124 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 124 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 249 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 249 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 20 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 20 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 20 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 20 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 133.4 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 133.4 lb/d | all year |
| 001 | Duration | MO TOTAL | report only | all year |
| 001 | Duration | MO TOTAL | report only | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .03 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .03 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 13.3 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 13.3 lb/d | all year |
| 001 | E. coli | MO GEOMN | <= 126 MPN/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | E. coli | MO GEOMN | <= 126 MPN/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | E. coli | MO GEOMN | <= 630 MPN/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | E. coli | MO GEOMN | <= 630 MPN/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | E. coli | DAILY MX | <= 576 MPN/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | E. coli | DAILY MX | <= 576 MPN/100mL | Apr, May, Jun, Jul, Aug, Sep |
| 001 | E. coli | DAILY MX | <= 630 MPN/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | E. coli | DAILY MX | <= 630 MPN/100mL | Jan, Feb, Mar, Oct, Nov, Dec |
| 001 | Flow | MO AVG | <= .8 MGD | all year |
| 001 | Flow | MO AVG | <= .8 MGD | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 65 % | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 65 % | all year |
| 002 | pH | INST MIN | >= 6.5 SU | all year |
| 002 | pH | INST MIN | >= 6.5 SU | all year |
| 002 | pH | INST MAX | <= 9 SU | all year |
| 002 | pH | INST MAX | <= 9 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 002 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 002 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 002 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | report only | all year |
| 002 | Solids, total suspended | DAILY MX | report only | all year |
| 002 | Flow | MO AVG | report only | all year |
| 002 | Flow | MO AVG | report only | all year |
| 002 | Flow | DAILY MX | report only | all year |
| 002 | Flow | DAILY MX | report only | all year |
| DMP1 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| DMP1 | pH | DAILY MX | report only | all year |
| DMP1 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| DMP1 | Flow | DAILY MX | report only | all year |
| HS1 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| HS1 | pH | DAILY MX | report only | all year |
| HS1 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| HS1 | Flow | DAILY MX | report only | all year |
| TSS | Solids, total suspended | MO AVG | <= 554 lb/d | all year |
| TSS | Solids, total suspended | MO AVG | <= 554 lb/d | all year |
| UMP1 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| UMP1 | pH | DAILY MX | report only | all year |
| UMP1 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| UMP1 | Flow | DAILY MX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states