Clean Water Act discharge permit · NPDES MDG679504
WASHINGTON SUBURBAN SANITARY COMMMISION, Laurel, MD: NPDES MDG679504 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
WASHINGTON SUBURBAN SANITARY COMMMISION, held by WASHINGTON SUBURBAN SANITARY COMMISSION (WSSC), holds NPDES permit MDG679504. EPA’s file records it issued March 1, 2021 and expiring July 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WASHINGTON SUBURBAN SANITARY COMMMISION |
|---|---|
| Permittee as filed | WASHINGTON SUBURBAN SANITARY COMMISSION (WSSC) |
| NPDES ID | MDG679504 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 1, 2021 |
| Expiration date | July 31, 2025 |
| Issuing agency | Maryland Department of the Environment |
| Address | Laurel, MD 20707 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Horsepen Branch-Patuxent River (HUC 020600060401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 0Under a numeric limit
- 9With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 0 | 420 | 0 | ||
| pH | 0 | 342 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 127 | 0 | ||
| Chlorine, total residual | 0 | 127 | 0 | ||
| Solids, total suspended | 0 | 105 | 0 | ||
| Flow, discharge | 0 | 88 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 70 | 0 | ||
| Temp. diff. between up/down stream deg. F | 0 | 70 | 0 | ||
| Suspended Solids, Total | 0 | 22 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG679504.
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 MDG679504.
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 MDG679504 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 September 15, 2026.