Clean Water Act discharge permit · NPDES MDG499789
SWAREY SAND AND GRAVEL, Charlotte Hall, MD: NPDES MDG499789 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
SWAREY SAND AND GRAVEL holds NPDES permit MDG499789, which discharges to Gilbert Swamp. EPA’s file records it issued October 1, 2009 and expiring September 30, 2014. 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 | SWAREY SAND AND GRAVEL |
|---|---|
| Permittee as filed | SWAREY SAND AND GRAVEL |
| NPDES ID | MDG499789 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 1, 2009 |
| Expiration date | September 30, 2014 |
| Address | Charlotte Hall, MD 20622 |
| Receiving water | GILBERT SWAMP |
| Subwatershed | Trinity Church Run-Wicomico River (HUC 020700110501) |
| SIC | 1442 – Construction Sand And Gravel |
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
- 5Pollutants on file
- 4Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| pH | 12 | 385 | 1 | June 30, 2004 | |
| Solids, total suspended | 12 | 385 | 1 | March 31, 2004 | 37% over the limit |
| Flow, in conduit or thru treatment plant | 12 | 384 | 0 | ||
| pH change [range] | 0 | 348 | 0 | ||
| Solids, settleable | 6 | 192 | 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 MDG499789.
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 MDG499789 there.
Nearby on the register
- Discharge permits in Charlotte Hall
- Every permit record in Charlotte Hall, 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.