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Clean Water Act discharge permit · NPDES MDG767274

HAMILTON SPLASH POOL, Hyattsville, MD: NPDES MDG767274 discharge permit, effluent exceedances, inspections, penalties

HAMILTON SPLASH POOL, held by MARYLAND NATIONAL CAPITAL PARK AND PLANNING COMMISSION, holds NPDES permit MDG767274. EPA’s file records it issued December 16, 2020 and expiring September 30, 2025. 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 filedHAMILTON SPLASH POOL
Permittee as filedMARYLAND NATIONAL CAPITAL PARK AND PLANNING COMMISSION
NPDES IDMDG767274
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 16, 2020
Expiration dateSeptember 30, 2025
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressHyattsville, MD 20781
Receiving water impaired303(D) Listed
SubwatershedNorthwest Branch Anacostia River (HUC 020700100201)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Flow260
pH040
Chlorine, total residual120
Copper, total [as Cu]110
Silver, total [as Ag]110
Cyanuric acid110
Poly[hexamethylenebiguanide] hydrochloride110
Bromine, reported as the element110

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG767274.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG767274.

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, MDG767274.

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  • 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 MDG767274 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.