Velarion Records

Clean Water Act discharge permit · NPDES NDP026689

MARATHON DICKINSON REFINERY, Dickinson, ND: NPDES NDP026689 discharge permit, effluent exceedances, inspections, penalties

MARATHON DICKINSON REFINERY, held by Marathon Dickinson Refinery, holds NPDES permit NDP026689. EPA’s file records it issued November 18, 2014 and expiring November 30, 2019. 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 filedMARATHON DICKINSON REFINERY
Permittee as filedMarathon Dickinson Refinery
NPDES IDNDP026689
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual industrial user permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedNovember 18, 2014
Expiration dateNovember 30, 2019
Issuing agencyNorth Dakota Department of Environmental Quality
AddressDickinson, ND 58601
Other EPA IDs (FRS)RCRA handler NDR000011817; ICIS-AIR source ND0000003808900090

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

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
Chloride [as Cl]63232March 31, 2020208% over the limit
Phenolic compounds, unchlorinated41412November 30, 2018367% over the limit
Nitrogen, ammonia total [as N]61212November 30, 2016235% over the limit
Temperature, water deg. fahrenheit277August 31, 20198% over the limit
Nitrogen, Kjeldahl, total [as N]655November 30, 2016130% over the limit
Oil & Grease455May 31, 2019211% over the limit
BOD, 5-day, 20 deg. C622May 31, 201622% over the limit
Solids, total suspended622August 31, 201554% over the limit
Chemical Oxygen Demand [COD]622February 29, 201616% over the limit
Sulfide, total [as S]610
Phosphorus, total [as P]600
Chromium, total [as Cr]600
Flow, process wastewater600
pH400
Flow, total200
Duration of discharge200

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 NDP026689.

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

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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 NDP026689 there.

Nearby on the register

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

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