NPDES permit MD0020877 · Major FEDERAL · effective, expires 2026-10-31 · EPA's file as of 2026-09-19
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Last 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. fahrenheit | MO AVG | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MX MO AV | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MO AVG | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MX DA AV | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MO AVG | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MX MO AV | report only | all year |
| 001 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 10 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 15 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 170 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 250 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 | <= 10 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 15 mg/L | all year |
| 001 | Solids, total suspended | MX MO AV | <= 170 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 250 lb/d | all year |
| 001 | Solids, total suspended | CUM TOTL | <= 60800 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 | <= 24364 lb/yr | all year |
| 001 | Nitrogen, total [as N] | ANNL TOT | report only | 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] | MO AVG | report only | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX MO AV | <= 3 mg/L | Apr, May, Jun, Jul, Aug, Sep |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | <= 4.5 mg/L | Apr, May, Jun, Jul, Aug, Sep |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX MO AV | <= 50 lb/d | Apr, May, Jun, Jul, Aug, Sep |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | <= 75 lb/d | Apr, May, Jun, Jul, Aug, Sep |
| 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 | <= 1827 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 | Phosphorus, total [as P] | ANNL TOT | report only | all year |
| 001 | PCB, total, scan effluent | QRTR AVG | report only | all year |
| 001 | Phosphate, ortho [as P] | MO AVG | report only | all year |
| 001 | Acrylonitrile | QRTR AVG | report only | all year |
| 001 | N-Nitrosodi-N-propylamine | QRTR AVG | report only | Mar, Jun, Sep, Dec |
| 001 | N-Nitrosodimethylamine [NDMA] | QRTR AVG | report only | all year |
| 001 | Benzo[a]anthracene | QRTR AVG | report only | all year |
| 001 | 3,3'-Dichlorobenzidine | QRTR AVG | report only | all year |
| 001 | Benzidine | QRTR AVG | report only | Mar, Jun, Sep, Dec |
| 001 | Aldrin | QRTR AVG | report only | Mar, Jun, Sep, Dec |
| 001 | Dieldrin | QRTR AVG | report only | all year |
| 001 | Toxaphene | QRTR AVG | report only | all year |
| 001 | Heptachlor epoxide | QRTR AVG | report only | all year |
| 001 | Hexachlorobenzene | QRTR AVG | report only | Mar, Jun, Sep, Dec |
| 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 | E. coli | GX | <= 126 MPN/100mL | all year |
| 001 | Flow, total | MO TOTAL | report only | all year |
| 001 | Flow, total | ANNL TOT | report only | all year |
| 001 | Flow, total | ANNL TOT | report only | all year |
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