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Clean Water Act discharge permit · NPDES MDG767275

NORTH BARNABY SPLASH PARK, Oxon Hill, MD: NPDES MDG767275 discharge permit, effluent exceedances, inspections, penalties

NORTH BARNABY SPLASH PARK, held by MARYLAND NATIONAL CAPITAL PARK AND PLANNING COMMISSION, holds NPDES permit MDG767275, which discharges to Barnaby Run. EPA’s file records it issued January 1, 2021 and expiring December 31, 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 filedNORTH BARNABY SPLASH PARK
Permittee as filedMARYLAND NATIONAL CAPITAL PARK AND PLANNING COMMISSION
NPDES IDMDG767275
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 1, 2021
Expiration dateDecember 31, 2026
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressOxon Hill, MD 20745
Receiving waterBARNABY RUN
SubwatershedFourmile Run-Potomac River (HUC 020700100301)

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
pH020
Flow020
Chlorine, total residual010

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG767275.

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 MDG767275.

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.

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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, MDG767275.

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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 MDG767275 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The NORTH BARNABY SPLASH PARK permit is one of 2 NPDES permits in the Fourmile Run-Potomac River subwatershed, including this one. Among the 131 general permit coverages in Prince George's County, 46.6% have a violation on file, and this permit has none of the recorded pollutants under a numeric limit or effluent exceedances.