Clean Water Act discharge permit · NPDES MD3232E10
MARLEY RUN WWTP-J&H PROP,INC., Huntington (Historical), MD: NPDES MD3232E10 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
MARLEY RUN WWTP-J&H PROP,INC., held by Calvert County Board of Commissioners, holds NPDES permit MD3232E10, which discharges to Magothy River. EPA’s file records it issued July 1, 2024 and expiring July 31, 2028. 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 | MARLEY RUN WWTP-J&H PROP,INC. |
|---|---|
| Permittee as filed | Calvert County Board of Commissioners |
| NPDES ID | MD3232E10 |
| Permit status | Effective |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 1, 2024 |
| Expiration date | July 31, 2028 |
| Issuing agency | Maryland Department of The Environment |
| Address | Huntington (Historical), MD 20639 |
| Receiving water | Magothy River |
| Subwatershed | Hunting Creek (HUC 020600060505) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 14 | 58 | 16 | December 31, 2023 | 2,147,483,650% over the limit |
| Nitrogen, total [as N] | 15 | 56 | 3 | July 31, 2026 | 78% over the limit |
| BOD, 5-day, 20 deg. C | 1 | 18 | 2 | February 29, 2024 | 40% over the limit |
| pH | 14 | 49 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 14 | 49 | 0 | ||
| Solids, total dissolved | 14 | 49 | 0 | ||
| Phosphate, total [as PO4] | 14 | 48 | 0 | ||
| Chloride [as Cl] | 14 | 48 | 0 | ||
| Nitrogen, nitrate total [as N] | 14 | 47 | 0 | ||
| Nitrogen, nitrite total [as N] | 14 | 36 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 13 | 0 | ||
| Solids, total suspended | 1 | 4 | 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 MD3232E10.
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 MD3232E10 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.