Clean Water Act discharge permit · NPDES MD0050903
BOONES MOBILE ESTATE WWTP, Lothian, MD: NPDES MD0050903 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
BOONES MOBILE ESTATE WWTP, held by BOONES ESTATE MHC, LLC, holds NPDES permit MD0050903, which discharges to Patuxent River - Middle. EPA’s file records it issued May 29, 2012 and expiring June 30, 2017. 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 | BOONES MOBILE ESTATE WWTP |
|---|---|
| Permittee as filed | BOONES ESTATE MHC, LLC |
| NPDES ID | MD0050903 |
| 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 | May 29, 2012 |
| Expiration date | June 30, 2017 |
| Issuing agency | MARYLAND DEPT OF THE ENVIRONMENT |
| Address | Lothian, MD 20711 |
| Receiving water | PATUXENT RIVER - Middle |
| Subwatershed | Wilson Owens Branch-Patuxent River (HUC 020600060403) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 12Under a numeric limit
- 14With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 278 | 157 | June 30, 2026 | 1,525% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 239 | 119 | July 31, 2026 | 758% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 137 | 95 | July 31, 2026 | 1,141% over the limit |
| E. coli | 1 | 34 | 21 | July 31, 2025 | 1,821% over the limit |
| Oxygen, dissolved [DO] | 1 | 41 | 11 | April 30, 2026 | 42% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 44 | 9 | January 31, 2007 | 64,900% over the limit |
| pH | 2 | 64 | 4 | July 31, 2023 | |
| Nitrogen, Kjeldahl, total [as N] | 0 | 50 | 0 | ||
| Chlorine, total residual | 1 | 31 | 0 | ||
| Coliform, fecal general | 0 | 21 | 0 | ||
| Phosphorus, total [as P] | 3 | 16 | 0 | ||
| Nitrogen, total [as N] | 3 | 15 | 0 | ||
| Nitrogen, organic total [as N] | 1 | 5 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 5 | 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 MD0050903.
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 MD0050903 there.
Nearby on the register
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- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.