Clean Water Act discharge permit · NPDES MDG491405
PINESBURG QUARRY, Williamsport, MD: NPDES MDG491405 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
PINESBURG QUARRY holds NPDES permit MDG491405, which discharges to Unnamed Tributary To Potomac River. EPA’s file records it issued December 1, 2011 and expiring April 30, 2015. 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.
Identity
| Facility as filed | PINESBURG QUARRY |
|---|---|
| Permittee as filed | PINESBURG QUARRY |
| NPDES ID | MDG491405 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 1, 2011 |
| Expiration date | April 30, 2015 |
| Issuing agency | Maryland Department of The Environment |
| Address | Williamsport, MD 21795 |
| Receiving water | UNNAMED TRIBUTARY TO POTOMAC RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Camp Spring Run-Potomac River (HUC 020700041103) |
| Other EPA IDs (FRS) | RCRA handler MDD985416007; ICIS-AIR source MD0000002404300115 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 5With 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 | 4 | 80 | 0 | ||
| Solids, total suspended | 4 | 80 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 80 | 0 | ||
| pH change [range] | 4 | 76 | 0 | ||
| Solids, settleable | 2 | 40 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG491405.
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 MDG491405.
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 MDG491405 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.