NPDES permit MD0020605 · Minor POTW · effective, expires 2027-05-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileSign-ups are not open yet. We counted that someone asked — not who, and not which permit — and we open them once enough people do. The check stays free.
Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (4), BOD, 5-day, 20 deg. C (3), Solids, total suspended (3).
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 |
|---|---|---|---|---|
| 002 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 002 | Oxygen, dissolved [DO] | MN WK AV | >= 6 mg/L | Feb, Mar, Apr, May |
| 002 | Oxygen, dissolved [DO] | MO AV MN | >= 5.5 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX MO AV | <= 16 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 24 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | MX MO AV | <= 15 lb/d | all year |
| 002 | BOD, 5-day, 20 deg. C | MX WK AV | <= 23 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 | <= 16 mg/L | all year |
| 002 | Solids, total suspended | MX WK AV | <= 24 mg/L | all year |
| 002 | Solids, total suspended | MX MO AV | <= 15 lb/d | all year |
| 002 | Solids, total suspended | MX WK AV | <= 23 lb/d | all year |
| 002 | Solids, total suspended | CUM TOTL | <= 5482 lb/yr | all year |
| 002 | Solids, total suspended | MO TOTAL | report only | 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 | <= 1339 lb/yr | all year |
| 002 | Nitrogen, total [as N] | ANNL TOT | report only | all year |
| 002 | Nitrogen, total [as N] | ANNL TOT | report only | all year |
| 002 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MX MO AV | <= 2.1 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Nitrogen, ammonia total [as N] | MX MO AV | <= 4.9 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 002 | Nitrogen, ammonia total [as N] | MX MO AV | <= 1.9 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 002 | Nitrogen, ammonia total [as N] | MX MO AV | <= 4.5 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 002 | Nitrogen, Kjeldahl, dissolved [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] | CUM TOTL | <= 101 lb/yr | all year |
| 002 | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| 002 | Phosphorus, total [as P] | ANNL TOT | report only | all year |
| 002 | Phosphorus, total [as P] | ANNL TOT | report only | all year |
| 002 | Phosphate, ortho [as P] | MO 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 | Enterococci | MAXIMUM | <= 35 MPN/100mL | all year |
| 002 | BOD, 5-day, percent removal | MINIMUM | >= 85 % | all year |
| 002 | Solids, suspended percent removal | MINIMUM | >= 85 % | all year |
| 002 | Flow, total | TOTAL | report only | all year |
| 002 | Flow, total | ANNL TOT | report only | all year |
| 002 | Flow, total | ANNL TOT | 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 | CUM TOTL | report only | all year |
| TRAD | Solids, total suspended | CUM TOTL | report only | all year |
| TRAD | Nitrogen, total [as N] | CUM TOTL | report only | all year |
| TRAD | Nitrogen, total [as N] | CUM TOTL | report only | all year |
| TRAD | Phosphorus, total [as P] | CUM TOTL | report only | all year |
| TRAD | Phosphorus, total [as P] | CUM TOTL | 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