NPDES permit MS0020362 · Major POTW · effective, expires 2030-08-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: Hardness, total [as CaCO3] (10).
Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MINIMUM | report only | all year |
| 001 | Oxygen, dissolved [DO] | MAXIMUM | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 8 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 12 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 327 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 490 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | report only | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 1226 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 1839 lb/d | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | MX WK AV | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | MX WK AV | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | <= 539.21 lb/d | all year |
| 001 | Nitrogen, total [as N] | MX WK AV | <= 808.82 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 2 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 3 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 82 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 123 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 175.84 lb/d | all year |
| 001 | Phosphorus, total [as P] | MX WK AV | <= 263.76 lb/d | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 001 | Hardness, total [as CaCO3] | MINIMUM | >= 150 mg/L | all year |
| 001 | Hardness, total [as CaCO3] | MAXIMUM | report only | all year |
| 001 | Silver total recoverable | MO AVG | <= .00098 mg/L | all year |
| 001 | Silver total recoverable | WKLY MAX | <= .00098 mg/L | all year |
| 001 | Copper, total recoverable | MO AVG | <= .011 mg/L | all year |
| 001 | Copper, total recoverable | MX WK AV | <= .016 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | <= 4.9 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | MX WK AV | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .011 mg/L | all year |
| 001 | Chlorine, total residual | MX WK AV | <= .019 mg/L | all year |
| 001 | E. coli | MO AVG | <= 126 #/100mL | all year |
| 001 | E. coli | MX WK AV | <= 410 #/100mL | all year |
| 001 | BOD, 5-day, percent removal | MINIMUM | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MINIMUM | >= 85 % | all year |
| 001 | Sludge settleability 30 minute | MINIMUM | report only | all year |
| 001 | Sludge settleability 30 minute | MAXIMUM | report only | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MINIMUM | >= 100 % | all year |
| 001 | %Effect Static Renewal 7Day Chronic Pimephales promelas | MINIMUM | >= 100 % | all year |
| 002 | Oxygen, dissolved [DO] | MINIMUM | >= 2 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 90 mg/L | all year |
| 002 | Solids, total suspended | MO AVG | report only | all year |
| 002 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 002 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 5 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 002 | Phosphorus, total [as P] | MX MO AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX MO AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX MO AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX MO AV | report only | all year |
| 002 | Phosphorus, total [as P] | MX WK AV | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | BOD, 5-day, percent removal | MINIMUM | >= 65 % | all year |
| 002 | Solids, suspended percent removal | MINIMUM | >= 65 % | all year |
| 003 | Oxygen, dissolved [DO] | MINIMUM | >= 2 mg/L | all year |
| 003 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 003 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 003 | pH | MINIMUM | >= 6 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Solids, total suspended | MO AVG | <= 90 mg/L | all year |
| 003 | Solids, total suspended | MO AVG | report only | all year |
| 003 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX MO AV | report only | all year |
| 003 | Nitrogen, total [as N] | MX WK AV | report only | all year |
| 003 | Nitrogen, ammonia total [as N] | MO AVG | <= 5 mg/L | all year |
| 003 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 003 | BOD, 5-day, percent removal | MINIMUM | >= 65 % | all year |
| 003 | Solids, suspended percent removal | MINIMUM | >= 65 % | 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