Clean Water Act discharge permit · NPDES MDG766541
MONTGOMERY SQUARE C. SWIM CLUB, Potomac, MD: NPDES MDG766541 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MONTGOMERY SQUARE C. SWIM CLUB, held by MONTGOMERY SQUARE C.S.CLUB, holds NPDES permit MDG766541, which discharges to Potomac River Montgomery County. EPA’s file records it issued May 23, 2024 and expiring October 31, 2028. 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 | MONTGOMERY SQUARE C. SWIM CLUB |
|---|---|
| Permittee as filed | MONTGOMERY SQUARE C.S.CLUB |
| NPDES ID | MDG766541 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 23, 2024 |
| Expiration date | October 31, 2028 |
| Issuing agency | MD DEPARTMENT OF THE ENVIRONMENT |
| Address | Potomac, MD 20854 |
| Receiving water | POTOMAC RIVER MONTGOMERY COUNTY |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Watts Branch (HUC 020700081002) |
| SIC | 7991 – Physical Fitness Facilities |
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
- 11Pollutants on file
- 0Under a numeric limit
- 11With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 0 | 293 | 0 | ||
| Chlorine, total residual | 0 | 159 | 0 | ||
| Cyanuric acid | 0 | 154 | 0 | ||
| Copper, total [as Cu] | 0 | 41 | 0 | ||
| Silver, total [as Ag] | 0 | 41 | 0 | ||
| Poly[hexamethylenebiguanide] hydrochloride | 0 | 41 | 0 | ||
| Bromine, reported as the element | 0 | 41 | 0 | ||
| pH | 0 | 30 | 0 | ||
| Flow | 0 | 30 | 0 | ||
| Turbidity | 0 | 27 | 0 | ||
| Turbidity, lab, NTU | 0 | 5 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG766541.
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 MDG766541.
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, MDG766541.
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 MDG766541 there.
Nearby on the register
- Discharge permits in Potomac
- Every permit record in Potomac, 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.