Facility profile
Mandan Refinery
Significant noncompliance across 4 of the last 12 quarters, with $15,000 in recorded penalties.
Noncompliance quarters
4
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$15,000
Recorded enforcement amount carried into the facility page.
Last inspection
2025-09-17
Displayed as plain language instead of hidden in agency exports.
Trend
Watch
Reported on-site releases are lower in 2024 than in 2022.
| Year | Air | Water | Land | Total |
|---|---|---|---|---|
| 2022 | 409,384 lbs | 5,134 lbs | 1,595 lbs | 416,112 lbs |
| 2023 | 362,270 lbs | 5,577 lbs | 1,625 lbs | 369,472 lbs |
| 2024 | 299,362 lbs | 3,243 lbs | 2,110 lbs | 304,715 lbs |
Chemical breakdown
What this facility is reporting
-
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Propylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Toluene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Xylene (mixed isomers)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Ethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Methanol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Phenol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
n-Hexane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Ammonia
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Cresol (mixed isomers)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
1, 2, 4-Trimethylbenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Hydrogen cyanide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Carbonyl sulfide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Cyclohexane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Ethylbenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Hydrogen fluoride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Benzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Carbon disulfide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Hydrogen sulfide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Manganese
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
-
Lead compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
-
Certain glycol ethers
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Tetrachloroethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Naphthalene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Cumene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
1, 3-Butadiene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Polycyclic aromatic compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
-
Nickel
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Cobalt compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
-
Anthracene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Chromium
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Phenanthrene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Biphenyl
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Mercury compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Benzo[g, h, i]perylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Molybdenum trioxide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Dioxin and dioxin-like compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
Enforcement layer
Why the ECHO-style detail matters
Significant noncompliance across 4 of the last 12 quarters, with $15,000 in recorded penalties.