Clean Water Act discharge permit · NPDES MD3225S03
CHARLOTTE HALL SQUARE, Charlotte Hall, MD: NPDES MD3225S03 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CHARLOTTE HALL SQUARE, held by St Mary County Metropolitan Commission, holds NPDES permit MD3225S03, which discharges to Lower Patuxent River. EPA’s file records it issued May 1, 2021 and expiring April 30, 2026. 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 | CHARLOTTE HALL SQUARE |
|---|---|
| Permittee as filed | St Mary County Metropolitan Commission |
| NPDES ID | MD3225S03 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 1, 2021 |
| Expiration date | April 30, 2026 |
| Issuing agency | MARYLAND DEPT OF THE ENVIRONMENT |
| Address | Charlotte Hall, MD 20622 |
| Receiving water | LOWER PATUXENT RIVER |
| Subwatershed | Trinity Church Run-Wicomico River (HUC 020700110501) |
| SIC | 4952 – Sewerage Systems |
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
- 15Pollutants on file
- 13Under a numeric limit
- 15With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 1 | 65 | 36 | August 31, 2013 | 983% over the limit |
| Solids, total suspended | 1 | 64 | 35 | August 31, 2013 | 2,167% over the limit |
| Nitrogen, total [as N] | 17 | 89 | 16 | December 31, 2025 | 542% over the limit |
| Nitrogen, nitrate total [as N] | 16 | 31 | 15 | December 31, 2025 | 530% over the limit |
| Solids, total dissolved | 16 | 14 | 1 | December 19, 2015 | 8% over the limit |
| Coliform, fecal general | 16 | 14 | 1 | December 19, 2015 | 2,147,483,650% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 17 | 39 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 29 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 26 | 0 | ||
| Nitrogen, nitrite total [as N] | 16 | 16 | 0 | ||
| pH | 16 | 13 | 0 | ||
| Phosphate, total [as PO4] | 16 | 13 | 0 | ||
| Chloride [as Cl] | 16 | 13 | 0 | ||
| Nitrogen, organic total [as N] | 0 | 5 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 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 MD3225S03.
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
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, MD3225S03.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 MD3225S03 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.