Clean Water Act discharge permit · NPDES MDR001933
MARLBORO AUTO PARTS, Upper Marlboro, MD: NPDES MDR001933 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARLBORO AUTO PARTS, held by Marlboro Auto Parts, holds NPDES permit MDR001933, which discharges to Western Branch. EPA’s file records it issued February 15, 2024 and expiring January 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 | MARLBORO AUTO PARTS |
|---|---|
| Permittee as filed | Marlboro Auto Parts |
| NPDES ID | MDR001933 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 15, 2024 |
| Expiration date | January 31, 2028 |
| Issuing agency | MRYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Upper Marlboro, MD 20772 |
| Receiving water | WESTERN BRANCH |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Collington Branch (HUC 020600060303) |
| SIC | 5015 – Motor Vehicle Parts, Used |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 7Pollutants on file
- 4Under a numeric limit
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 1 | 6 | 0 | ||
| Iron, total recoverable | 0 | 6 | 0 | ||
| Lead, total [as Pb] | 0 | 6 | 0 | ||
| Aluminum, total recoverable | 0 | 6 | 0 | ||
| Iron, total [as Fe] | 1 | 0 | 0 | ||
| Aluminum, total [as Al] | 1 | 0 | 0 | ||
| Lead, total recoverable | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDR001933.
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 MDR001933.
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 MDR001933 there.
Nearby on the register
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- Every permit record in Upper Marlboro, A to Z
- Discharge permits in Maryland
- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.