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Clean Water Act discharge permit · NPDES MDR003417

CHALK POINT GENERATING STATION, Aquasco, MD: NPDES MDR003417 discharge permit, effluent exceedances, inspections, penalties

CHALK POINT GENERATING STATION, held by CHALK POINT STEAM, LLC, holds NPDES permit MDR003417, which discharges to Lower Patuxent River. EPA’s file records it issued May 28, 2019 and expiring December 31, 2023. 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.

What the register holds for CHALK POINT GENERATING STATION: its NPDES ID, its permit type and status, its dates, its address in Aquasco, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR003417.

Identity

Facility as filedCHALK POINT GENERATING STATION
Permittee as filedCHALK POINT STEAM, LLC
NPDES IDMDR003417
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 28, 2019
Expiration dateDecember 31, 2023
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressAquasco, MD 20608
Receiving waterLOWER PATUXENT RIVER
Receiving water impaired303(D) Listed
SubwatershedSwanson Creek-Patuxent River (HUC 020600060507)
Other EPA IDs (FRS)RCRA handler MDR000517839; ICIS-AIR source MD0000002403302165

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDR003417.

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 MDR003417.

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, MDR003417.

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  • One permit holder — $99/month
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  • One state — $4,990/year
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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 MDR003417 there.

Nearby on the register

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

What this page shows

The CHALK POINT GENERATING STATION permit is one of 3 NPDES permits in the Swanson Creek-Patuxent River subwatershed, this one included. Among the 131 general permit coverages in Prince George's County, this one included, 22.1% carry an earlier issue date than this permit. The permit records show 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.