NPDES permit MD0021679 · Major POTW · effective, expires 2030-12-31 · 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 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 45 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 1502 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 2253 lb/d | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | Solids, total suspended | MX MO AV | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MX MO AV | <= 1502 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 2253 lb/d | all year |
| 001 | Solids, total suspended | CUM TOTL | <= 548201 lb/yr | all year |
| 001 | Solids, total suspended | MO TOTAL | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO TOTAL | report only | all year |
| 001 | Nitrogen, total [as N] | CUM TOTL | <= 73093 lb/yr | all year |
| 001 | Nitrogen, total [as N] | ANNL TOT | report only | all year |
| 001 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 2 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 100 lb/d | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | CUM TOTL | <= 5482 lb/yr | all year |
| 001 | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| 001 | Phosphorus, total [as P] | ANNL TOT | report only | all year |
| 001 | Phosphate, ortho [as P] | MO AVG | report only | all year |
| 001 | Aldrin | QRTR AVG | report only | all year |
| 001 | Chlordane [tech mix. and metabolites] | QRTR AVG | report only | all year |
| 001 | Dieldrin | QRTR AVG | report only | all year |
| 001 | Toxaphene | QRTR AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MAXIMUM | < .1 mg/L | all year |
| 001 | Coliform, fecal general | MO MED | <= 14 CFU/100mL | 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 | Flow, total | TOTAL | report only | all year |
| 001 | Flow, total | ANNL TOT | report only | all year |
| 002 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX MO AV | <= 30 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 45 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX MO AV | <= 1502 lb/d | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 2253 lb/d | all year |
| 002 | pH | MINIMUM | >= 6.5 SU | all year |
| 002 | pH | MAXIMUM | <= 8.5 SU | all year |
| 002 | Solids, total suspended | MX MO AV | <= 30 mg/L | all year |
| 002 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 002 | Solids, total suspended | MX MO AV | <= 1502 lb/d | all year |
| 002 | Solids, total suspended | MX WK AV | <= 2253 lb/d | all year |
| 002 | Solids, total suspended | MO TOTAL | report only | all year |
| 002 | Solids, total suspended | CUM TOTL | <= 548201 lb/yr | all year |
| 002 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, total [as N] | MO TOTAL | report only | all year |
| 002 | Nitrogen, total [as N] | CUM TOTL | <= 73093 lb/yr | all year |
| 002 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MX DA AV | <= 2 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | MX DA AV | <= 100 lb/d | all year |
| 002 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 002 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 002 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 002 | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| 002 | Phosphorus, total [as P] | CUM TOTL | <= 5482 lb/yr | all year |
| 002 | Phosphate, ortho [as P] | MO AVG | report only | all year |
| 002 | Aldrin | QRTR AVG | report only | all year |
| 002 | Chlordane [tech mix. and metabolites] | QRTR AVG | report only | all year |
| 002 | Dieldrin | QRTR AVG | report only | all year |
| 002 | Toxaphene | QRTR AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 002 | Chlorine, total residual | MAXIMUM | < .1 mg/L | all year |
| 002 | Coliform, fecal general | MO MED | <= 14 CFU/100mL | all year |
| 002 | BOD, 5-day, percent removal | MO AV MN | >= 85 % | all year |
| 002 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 002 | Flow, total | TOTAL | report only | all year |
| 101 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 101 | Solids, total suspended | MO AVG | report only | all year |
| TRAD | Solids, total suspended | MO TOTAL | report only | all year |
| TRAD | Solids, total suspended | MO TOTAL | report only | all year |
| TRAD | Nitrogen, total [as N] | MO TOTAL | report only | all year |
| TRAD | Nitrogen, total [as N] | MO TOTAL | report only | all year |
| TRAD | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| TRAD | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| TRAD | Flow | YA | 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