NPDES permit MD0023370 · Minor POTW · expired, expires 2024-06-30 · EPA's file as of 2026-09-19
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This permit expired on 2024-06-30 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. Most often over: BOD, 5-day, 20 deg. C (6), Nitrogen, ammonia total [as N] (2).
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 | Oxygen, dissolved [DO] | MO AV MN | >= 5.5 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MH | >= 6 mg/L | Feb, Mar, Apr, May |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 13 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 19 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MX MO AV | <= 21 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | MX WK AV | <= 32 lb/d | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | MX MO AV | <= 13 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 19 mg/L | all year |
| 001 | Solids, total suspended | MX MO AV | <= 21 lb/d | all year |
| 001 | Solids, total suspended | MO TOTAL | report only | all year |
| 001 | Solids, total suspended | MX WK AV | <= 32 lb/d | all year |
| 001 | Solids, total suspended | ANNL MAX | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | 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] | ANNL MAX | <= 2435 lb/yr | all year |
| 001 | Nitrogen, organic total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 8.9 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 2.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 8.4 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 4 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 14.8 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX MO AV | <= 4.2 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 14 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX DA AV | <= 6.7 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 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] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO TOTAL | report only | all year |
| 001 | Phosphorus, total [as P] | ANNL MAX | <= 183 lb/yr | all year |
| 001 | Phosphate, ortho [as P] | MO 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 | MX | <= 14 MPN/100mL | all year |
| 001 | Flow, total | 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