Clean Water Act discharge permit · NPDES NDP026999
MARATHON DICKINSON REFINERY, Dickinson, ND: NPDES NDP026999 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 74Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MARATHON DICKINSON REFINERY, held by Marathon Dickinson Refinery, holds NPDES permit NDP026999. EPA’s file records it issued November 1, 2020 and expiring October 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.
Identity
| Facility as filed | MARATHON DICKINSON REFINERY |
|---|---|
| Permittee as filed | Marathon Dickinson Refinery |
| NPDES ID | NDP026999 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 1, 2020 |
| Expiration date | October 31, 2025 |
| Issuing agency | North Dakota Department of Environmental Quality |
| Address | Dickinson, ND 58601 |
| NAICS | 325199 – All Other Basic Organic Chemical Manufacturing |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler NDR000011817; ICIS-AIR source ND0000003808900090 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 74Pollutants on file
- 74Under a numeric limit
- 8With a violation of any kind
- 8With an effluent exceedance
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; the 60 with the most exceedances of 74 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 6 | 8 | 8 | March 31, 2025 | 52% over the limit |
| Chloride [as Cl] | 2 | 4 | 4 | December 31, 2021 | 195% over the limit |
| Oil & Grease | 4 | 3 | 3 | June 30, 2025 | 166% over the limit |
| Solids, total suspended | 6 | 2 | 2 | June 30, 2022 | 69% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 6 | 2 | 2 | March 31, 2021 | 7% over the limit |
| Chromium, total [as Cr] | 6 | 2 | 2 | June 30, 2025 | 110% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 1 | 1 | June 30, 2025 | 11% over the limit |
| pH | 4 | 1 | 1 | March 31, 2023 | |
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 6 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 0 | 0 | ||
| Sulfite [as SO3] | 4 | 0 | 0 | ||
| Sulfide, total [as S] | 4 | 0 | 0 | ||
| Magnesium, total [as Mg] | 4 | 0 | 0 | ||
| Barium, total [as Ba] | 4 | 0 | 0 | ||
| Boron, total [as B] | 4 | 0 | 0 | ||
| Cobalt, total [as Co] | 4 | 0 | 0 | ||
| Iron, total [as Fe] | 4 | 0 | 0 | ||
| Manganese, total [as Mn] | 4 | 0 | 0 | ||
| Molybdenum, total [as Mo] | 4 | 0 | 0 | ||
| Tin, total [as Sn] | 4 | 0 | 0 | ||
| Aluminum, total [as Al] | 4 | 0 | 0 | ||
| Titanium, total [as Ti] | 4 | 0 | 0 | ||
| Sulfates, total [as SO4] | 4 | 0 | 0 | ||
| Phenolic compounds, unchlorinated | 4 | 0 | 0 | ||
| Flow, process wastewater | 4 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Carbon tetrachloride | 2 | 0 | 0 | ||
| 1,2-Dichloroethane | 2 | 0 | 0 | ||
| Chloroform | 2 | 0 | 0 | ||
| Toluene | 2 | 0 | 0 | ||
| Acenaphthene | 2 | 0 | 0 | ||
| Anthracene | 2 | 0 | 0 | ||
| Chlorobenzene | 2 | 0 | 0 | ||
| Diethyl phthalate | 2 | 0 | 0 | ||
| Dimethyl phthalate | 2 | 0 | 0 | ||
| Ethylbenzene | 2 | 0 | 0 | ||
| Fluoranthene | 2 | 0 | 0 | ||
| Fluorene | 2 | 0 | 0 | ||
| Hexachlorobutadiene | 2 | 0 | 0 | ||
| Hexachloroethane | 2 | 0 | 0 | ||
| Methyl chloride [Chloromethane] | 2 | 0 | 0 | ||
| Methylene chloride | 2 | 0 | 0 | ||
| Nitrobenzene | 2 | 0 | 0 | ||
| Phenanthrene | 2 | 0 | 0 | ||
| Pyrene | 2 | 0 | 0 | ||
| Tetrachloroethylene | 2 | 0 | 0 | ||
| 1,1-Dichloroethane | 2 | 0 | 0 | ||
| 1,1-Dichloroethylene | 2 | 0 | 0 | ||
| 1,1,1-Trichloroethane | 2 | 0 | 0 | ||
| 1,1,2-Trichloroethane | 2 | 0 | 0 | ||
| 1,2-Dichlorobenzene | 2 | 0 | 0 | ||
| 1,2-Dichloropropane | 2 | 0 | 0 | ||
| trans-1,2-Dichloroethylene | 2 | 0 | 0 | ||
| 1,2,4-Trichlorobenzene | 2 | 0 | 0 | ||
| 1,3-Dichlorobenzene | 2 | 0 | 0 | ||
| 1,4-Dichlorobenzene | 2 | 0 | 0 |
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NDP026999.
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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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 NDP026999 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.