Clean Water Act discharge permit · NPDES MDG520400
MARYLAND SEAFOOD, INC., St. Marys City, MD: NPDES MDG520400 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARYLAND SEAFOOD, INC. holds NPDES permit MDG520400. EPA’s file records it issued March 1, 2023 and expiring October 31, 2027. 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.
What the register holds for MARYLAND SEAFOOD, INC.: its NPDES ID, its permit type and status, its dates, its address in St. Marys City, Maryland, and 7 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDG520400.
Identity
| Facility as filed | MARYLAND SEAFOOD, INC. |
|---|---|
| Permittee as filed | MARYLAND SEAFOOD, INC. |
| NPDES ID | MDG520400 |
| 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, 2023 |
| Expiration date | October 31, 2027 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | St. Marys City, MD 20630 |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 7Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 0 | 0 | ||
| Solids, total suspended | 2 | 0 | 0 | ||
| Oil and grease | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Production, seafood effluent | 1 | 0 | 0 | ||
| Chlorine, total residual | 1 | 0 | 0 | ||
| Coliform, fecal general | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG520400.
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 MDG520400.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MDG520400.
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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 MDG520400 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.