NPDES permit WY0020320 · Major POTW · effective, expires 2028-08-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31.
Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | INST MIN | report only | all year |
| 001 | Temperature, water deg. centigrade | INST MAX | report only | all year |
| 001 | Oxygen, dissolved [DO] | DAILY MX | report only | 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 | DAILY MX | 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 | DAILY MX | report only | all year |
| 001 | pH | INST MIN | >= 6.5 SU | all year |
| 001 | pH | INST MAX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | WKLY AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 12.62 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 5.4 mg/L | May, Jun, Jul, Aug, Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 30.38 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 19.18 mg/L | May, Jun, Jul, Aug, Sep |
| 001 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Duration | MO TOTAL | report only | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .085 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | Chlorine, total residual | MO AVG | <= .045 mg/L | May, Jun, Jul, Aug, Sep |
| 001 | Chlorine, total residual | MO AVG | <= .049 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | Chlorine, total residual | DAILY MX | <= .078 mg/L | May, Jun, Jul, Aug, Sep |
| 001 | E. coli | DAILY MX | <= 2644 MPN/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | E. coli | MO GEOMN | <= 363 MPN/100mL | May, Jun, Jul, Aug, Sep |
| 001 | E. coli | MO GEOMN | <= 2644 MPN/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| 001 | E. coli | DAILY MX | <= 811 MPN/100mL | May, Jun, Jul, Aug, Sep |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | MO AVG | report only | all year |
| 001 | Flow | MO AVG | <= 1.43 MGD | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Produced water, oil and grease | DAILY MX | <= 10 mg/L | all year |
| 001 | Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | WKLY AVG | <= 0 pass=0;fail=1 | all year |
| 001 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | WKLY AVG | <= 0 pass=0;fail=1 | all year |
| 001 | Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7E | <= 0 pass=0;fail=1 | all year |
| 001 | Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7E | <= 0 pass=0;fail=1 | all year |
| CRS1 | Solids, total dissolved | DAILY MX | report only | all year |
| UMP1 | Temperature, water deg. centigrade | INST MIN | report only | all year |
| UMP1 | Temperature, water deg. centigrade | INST MAX | report only | all year |
| UMP1 | pH | INST MIN | report only | all year |
| UMP1 | pH | INST MAX | 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