NPDES permit MD0020648 · Minor POTW · expired, expires 2024-03-31 · EPA's file as of 2026-09-19
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This permit expired on 2024-03-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 28 days after each monitoring period ends (the most common figure among MD permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | MAXIMUM | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MO AVG | report only | all year |
| 001 | Temperature, water deg. fahrenheit | MO AVG | 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 | <= 20 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 30 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 30 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 45 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 150 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 225 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 225 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 337 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec |
| 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 | <= 225 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 337 lb/d | all year |
| 001 | Solids, total suspended | MO TOTAL | report only | all year |
| 001 | Solids, total suspended | CUM TOTL | <= 82600 lb/yr | all year |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 5.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 13.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 41 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 101 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX MO AV | <= 7 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | <= 10 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX MO AV | <= 53 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | <= 79 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphate, ortho [as P] | MO AVG | report only | all year |
| 001 | Acrolein | QRTR AVG | report only | Mar, Jun, Sep, Dec |
| 001 | Benzidine | 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 | E. coli | GX | <= 126 MPN/100mL | all year |
| 001 | Flow, total | MO TOTAL | 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