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Clean Water Act discharge permit · NPDES DEL021539

PORT PENN WASTEWATER TREATMENT PLANT, Port Penn, DE: NPDES DEL021539 discharge permit, effluent exceedances, inspections, penalties

PORT PENN WASTEWATER TREATMENT PLANT, held by Port Penn Wastewater Treatment Plant, holds NPDES permit DEL021539. EPA’s file records it issued August 19, 2022 and expiring December 31, 2025. 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.

What the register holds for PORT PENN WASTEWATER TREATMENT PLANT: its NPDES ID, its permit type and status, its dates, its address in Port Penn, Delaware. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES DEL021539.

Identity

Facility as filedPORT PENN WASTEWATER TREATMENT PLANT
Permittee as filedPort Penn Wastewater Treatment Plant
NPDES IDDEL021539
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 19, 2022
Expiration dateDecember 31, 2025
AddressPort Penn, DE 19731
Receiving water impaired303(D) Listed
SubwatershedLower Alloway Creek (HUC 020402060203)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES DEL021539.

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 DEL021539.

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, DEL021539.

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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 DEL021539 there.

Nearby on the register

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

What this page shows

The PORT PENN WASTEWATER TREATMENT PLANT is one of 1 NPDES permit in the Lower Alloway Creek subwatershed, this one included. Of the 5 associated permit records in New Castle County, this one included, 80.0% carry an earlier issue date than this permit. The permit has none of the 0 pollutants under a numeric limit and none of the 0 pollutants with an effluent exceedance, and 0.0% of the 5 associated permit records in New Castle County have a violation on file.