Facility profile
Marathon (mplx) Siloam Plant
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Noncompliance quarters
1
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$0
Recorded enforcement amount carried into the facility page.
Last inspection
2025-09-25
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 | 46 lbs | 1 lbs | 0 lbs | 47 lbs |
| 2023 | 65 lbs | 5 lbs | 0 lbs | 70 lbs |
| 2024 | 32 lbs | 5 lbs | 0 lbs | 37 lbs |
Chemical breakdown
What this facility is reporting
-
Chromium compounds (except for chromite ore mined in the Transvaal Region)
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
No Violation Identified across 1 of the last 12 quarters in the imported ECHO record.