Clean Water Act discharge permit · NPDES MD0001881
BTR HAMPSTEAD, LLC., Hampstead, MD: NPDES MD0001881 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
BTR HAMPSTEAD, LLC., held by BTR HAMPSTEAD,LLC., holds NPDES permit MD0001881, which discharges to Patapsco River. EPA’s file records it issued September 12, 2017 and expiring September 30, 2022. 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 | BTR HAMPSTEAD, LLC. |
|---|---|
| Permittee as filed | BTR HAMPSTEAD,LLC. |
| NPDES ID | MD0001881 |
| 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 | September 12, 2017 |
| Expiration date | September 30, 2022 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Hampstead, MD 21074 |
| Receiving water | PATAPSCO RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Deep Run-Liberty Lake-North Branch Patapsco River (HUC 020600030805) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 25Pollutants on file
- 21Under a numeric limit
- 24With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 19 | 19 | February 28, 2026 | 567% over the limit |
| Phosphorus, total [as P] | 7 | 15 | 15 | January 31, 2024 | 367% over the limit |
| Oil & Grease | 2 | 40 | 8 | July 31, 2015 | 3,390% over the limit |
| Solids, total suspended | 8 | 40 | 5 | July 31, 2023 | 213% over the limit |
| pH | 4 | 41 | 3 | January 31, 2025 | |
| E. coli | 2 | 3 | 1 | January 31, 2026 | 13% over the limit |
| Oxygen, dissolved [DO] | 1 | 2 | 1 | June 30, 2024 | 6% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 104 | 0 | ||
| 1,1,1-Trichloroethane | 2 | 53 | 0 | ||
| Tetrachloroethylene | 0 | 52 | 0 | ||
| Trichloroethylene | 0 | 48 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 18 | 0 | ||
| Chlorine, total residual | 2 | 18 | 0 | ||
| Coliform, fecal general | 0 | 18 | 0 | ||
| Temperature, water deg. fahrenheit | 3 | 6 | 0 | ||
| Trichloroethene | 2 | 5 | 0 | ||
| Flow | 2 | 4 | 0 | ||
| Nitrogen, total [as N] | 3 | 3 | 0 | ||
| Organics, tot purgeables [Method 624] | 2 | 2 | 0 | ||
| Tetrachloroethene | 2 | 2 | 0 | ||
| PER-AND POLYFLUOROALKYL SUBSTANCES | 0 | 2 | 0 | ||
| Nitrogen, organic total [as N] | 1 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 1 | 0 | ||
| Phosphate, ortho [as P] | 1 | 1 | 0 | ||
| Flow, total | 1 | 0 | 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 MD0001881.
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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How we handle your data → Privacy
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 MD0001881 there.
Nearby on the register
- Discharge permits in Hampstead
- Every permit record in Hampstead, 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.