Clean Water Act discharge permit · NPDES MD0071773
LOCKHEED MARTIN DUMP ROAD AREA GROUNDWATER TREATMENT PLANT, Middle River, MD: NPDES MD0071773 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 22Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
LOCKHEED MARTIN DUMP ROAD AREA GROUNDWATER TREATMENT PLANT, held by LOCKHEED MARTIN CORPORATION, holds NPDES permit MD0071773, which discharges to Frog Mortar Creek. EPA’s file records it issued March 14, 2016 and expiring March 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LOCKHEED MARTIN DUMP ROAD AREA GROUNDWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | LOCKHEED MARTIN CORPORATION |
| NPDES ID | MD0071773 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 14, 2016 |
| Expiration date | March 31, 2021 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Middle River, MD 21220 |
| Receiving water | FROG MORTAR CREEK |
| Subwatershed | Rockcastle Creek (HUC 050701010304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 22Under a numeric limit
- 24With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| Cadmium, total [as Cd] | 2 | 45 | 5 | October 31, 2025 | 108% over the limit |
| Vinyl chloride | 1 | 22 | 1 | June 30, 2019 | 371% over the limit |
| Copper, total [as Cu] | 2 | 40 | 0 | ||
| Lead, total [as Pb] | 2 | 40 | 0 | ||
| Nickel, total [as Ni] | 2 | 40 | 0 | ||
| Zinc, total [as Zn] | 2 | 40 | 0 | ||
| Selenium, total [as Se] | 2 | 40 | 0 | ||
| Mercury, total [as Hg] | 2 | 40 | 0 | ||
| Volatile Organic Compound [VOC] | 2 | 24 | 0 | ||
| Trichloroethene | 1 | 21 | 0 | ||
| pH | 2 | 20 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 20 | 0 | ||
| Arsenic, total [as As] | 2 | 20 | 0 | ||
| Cadmium, dissolved [as Cd] | 2 | 20 | 0 | ||
| Chromium, total [as Cr] | 2 | 20 | 0 | ||
| Copper, dissolved [as Cu] | 2 | 20 | 0 | ||
| Lead, dissolved [as Pb] | 2 | 20 | 0 | ||
| Nickel, dissolved [as Ni] | 2 | 20 | 0 | ||
| Zinc, dissolved [as Zn] | 2 | 20 | 0 | ||
| Mercury, dissolved [as Hg] | 2 | 20 | 0 | ||
| Flow | 2 | 20 | 0 | ||
| 1,2-Dichloroethene | 1 | 19 | 0 | ||
| PER-AND POLYFLUOROALKYL SUBSTANCES | 0 | 2 | 0 | ||
| cis-1,2-Dichloroethene | 0 | 2 | 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 MD0071773.
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 MD0071773 there.
Nearby on the register
- Discharge permits in Middle River
- Every permit record in Middle River, A to Z
- Discharge permits in Maryland
- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.