NPDES permit MD0061841 · Minor NON-POTW · effective, expires 2030-11-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Aluminum, total recoverable (1), Solids, total suspended (1).
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 | Oxygen, dissolved [DO] | INST MIN | >= 5 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MO AVG | report only | 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 | <= 20 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, total [as N] | MY | report only | all year |
| 001 | Nitrogen, total [as N] | CUM TOTL | report only | all year |
| 001 | Nitrogen, total [as N] | MY | report only | all year |
| 001 | Nitrogen, total [as N] | ANNL MAX | <= 0 lb/yr | Dec |
| 001 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, organic total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MY | report only | all year |
| 001 | Phosphorus, total [as P] | CUM TOTL | report only | all year |
| 001 | Phosphorus, total [as P] | MY | report only | all year |
| 001 | Phosphorus, total [as P] | ANNL MAX | <= 0 lb/yr | Dec |
| 001 | Iron, total [as Fe] | MX MO AV | <= 4 mg/L | all year |
| 001 | Iron, total [as Fe] | DAILY MX | <= 6 mg/L | all year |
| 001 | Aluminum, total recoverable | MX MO AV | <= 4 mg/L | all year |
| 001 | Aluminum, total recoverable | DAILY MX | <= 6 mg/L | 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 | MX MO AV | <= .011 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .019 mg/L | all year |
| 001 | Flow, total | TOTAL | report only | all year |
| 201 | BOD, 5-day, 20 deg. C | MX MO AV | <= 30 mg/L | all year |
| 201 | BOD, 5-day, 20 deg. C | MX WK AV | <= 45 mg/L | all year |
| 201 | BOD, 5-day, 20 deg. C | MX MO AV | <= .25 lb/d | all year |
| 201 | BOD, 5-day, 20 deg. C | MX WK AV | <= .38 lb/d | all year |
| 201 | pH | MINIMUM | >= 6.5 SU | all year |
| 201 | pH | MAXIMUM | <= 8.5 SU | all year |
| 201 | Solids, total suspended | MX MO AV | <= 30 mg/L | all year |
| 201 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 201 | Solids, total suspended | MX MO AV | <= .25 lb/d | all year |
| 201 | Solids, total suspended | MX WK AV | <= .38 lb/d | all year |
| 201 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 201 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 201 | Chlorine, total residual | MAXIMUM | <= .1 mg/L | all year |
| 201 | E. coli | GX | <= 126 MPN/100mL | all year |
| 201 | E. coli | DAILY MX | report only | all year |
| 301 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 301 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 301 | Nitrogen, total [as N] | MY | report only | all year |
| 301 | Nitrogen, total [as N] | ANNL MAX | report only | all year |
| 301 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 301 | Nitrogen, organic total [as N] | DAILY MX | report only | all year |
| 301 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 301 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 301 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 301 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 301 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 301 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 301 | Phosphorus, total [as P] | MY | report only | all year |
| 301 | Phosphorus, total [as P] | ANNL MAX | report only | all year |
| 301 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 301 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 301 | Flow, total | TOTAL | report only | all year |
| 401 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 401 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 401 | Nitrogen, total [as N] | MY | report only | all year |
| 401 | Nitrogen, total [as N] | CUM TOTL | report only | all year |
| 401 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 401 | Nitrogen, organic total [as N] | DAILY MX | report only | all year |
| 401 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 401 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 401 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 401 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 401 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 401 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 401 | Phosphorus, total [as P] | MY | report only | all year |
| 401 | Phosphorus, total [as P] | CUM TOTL | report only | all year |
| 401 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 401 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 401 | 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