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Clean Water Act discharge permit · NPDES DEPIU001A

PORT WILMINGTON TANK WASH, New Castle, DE: NPDES DEPIU001A discharge permit, effluent exceedances, inspections, penalties

PORT WILMINGTON TANK WASH, held by Port Wilmington Tank Wash, holds NPDES permit DEPIU001A. EPA’s file records it issued August 1, 2023 and expiring August 1, 2027. 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 PORT WILMINGTON TANK WASH: its NPDES ID, its permit type and status, its dates, its address in New Castle, Delaware. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES DEPIU001A.

Identity

Facility as filedPORT WILMINGTON TANK WASH
Permittee as filedPort Wilmington Tank Wash
NPDES IDDEPIU001A
Permit statusEffective
Permit typeIndividual industrial user permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 1, 2023
Expiration dateAugust 1, 2027
Issuing agencyCity Of Wilmington Regional Wwtp
AddressNew Castle, DE 19720
Other EPA IDs (FRS)RCRA handler DEN201200012

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 DEPIU001A.

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 DEPIU001A.

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, DEPIU001A.

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How often?
  • 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 DEPIU001A there.

Nearby on the register

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

What this page shows

The Port Wilmington Tank Wash permit, NPDES ID DEPIU001A, is one of 21 individual industrial user permits in New Castle County, and it sits among peers whose issue dates were earlier than its own at a rate of 55.6%. Of the 21 such permits in the county, 0.0% have a violation on file, and this permit has no pollutants under a numeric limit and no effluent exceedances recorded (both counted as 0).