Clean Water Act discharge permit · NPDES MD0021652
PATUXENT WATER RECLAMATION FAC, Crofton, MD: NPDES MD0021652 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
PATUXENT WATER RECLAMATION FAC, held by Anne Arundel County DPW, Bureau of Utility Operations, holds NPDES permit MD0021652, which discharges to Patuxent River. EPA’s file records it issued February 26, 2015 and expiring March 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | PATUXENT WATER RECLAMATION FAC |
|---|---|
| Permittee as filed | Anne Arundel County DPW, Bureau of Utility Operations |
| NPDES ID | MD0021652 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 26, 2015 |
| Expiration date | March 31, 2020 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Crofton, MD 21114 |
| Receiving water | PATUXENT RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Towsers Branch-Little Patuxent River (HUC 020600060203) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler MDR000019323; ICIS-AIR source MD0000002400300924 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 18Pollutants on file
- 16Under a numeric limit
- 11With a violation of any kind
- 6With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 12 | 12 | April 30, 2016 | 375% over the limit |
| Nitrogen, total [as N] | 7 | 33 | 11 | February 28, 2013 | 198% over the limit |
| pH | 2 | 3 | 3 | February 28, 2025 | |
| Solids, total suspended | 11 | 24 | 2 | February 28, 2026 | 29% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 1 | 1 | April 30, 2026 | 16% over the limit |
| Oxygen, dissolved [DO] | 2 | 1 | 1 | May 31, 2014 | 16% over the limit |
| Phosphorus, total [as P] | 7 | 26 | 0 | ||
| Flow | 1 | 12 | 0 | ||
| Coliform, fecal general | 0 | 3 | 0 | ||
| Toxicity, Acute | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCB] pg/L | 0 | 1 | 0 | ||
| Flow, total | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Nitrogen, organic total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphate, ortho [as P] | 1 | 0 | 0 | ||
| Chlorine, total residual | 1 | 0 | 0 | ||
| E. coli | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MD0021652.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MD0021652 there.
Nearby on the register
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- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.