Facility profile
Marquis Energy - Hennepin
Significant noncompliance across 5 of the last 12 quarters, with $60,000 in recorded penalties.
Noncompliance quarters
5
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$60,000
Recorded enforcement amount carried into the facility page.
Last inspection
2025-08-14
Displayed as plain language instead of hidden in agency exports.
Trend
Watch
Reported on-site releases are higher in 2024 than in 2022.
| Year | Air | Water | Land | Total |
|---|---|---|---|---|
| 2022 | 52,086 lbs | 0 lbs | 0 lbs | 52,086 lbs |
| 2023 | 52,479 lbs | 0 lbs | 0 lbs | 52,479 lbs |
| 2024 | 53,306 lbs | 0 lbs | 0 lbs | 53,306 lbs |
Chemical breakdown
What this facility is reporting
-
n-Hexane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Acetaldehyde
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Formaldehyde
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.
-
Acrolein
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Formic acid
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.
-
Xylene (mixed isomers)
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.
-
Toluene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
-
Nitric acid
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.
-
1, 2, 4-Trimethylbenzene
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 5 of the last 12 quarters, with $60,000 in recorded penalties.