Buffalo Terminal LLC — Emissions Trend

Tonawanda, NY · 2019–2023 · Parent: Marathon Petroleum Corp

This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for Buffalo Terminal LLC, spanning 2019–2023. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.

Reported releases opened at 2.9K in 2019 and closed at 1.9K in 2023 - a decreasing of -32.9% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is n-Hexane at 4.2K, followed by Toluene at 2.7K.

Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this petroleum bulk terminals facility.

Overall Trend
↓ Decreasing (-32.9%)
2019 Total
2.9K lbs
2023 Total
1.9K lbs

Total Releases by Category

Air
Water
Land
Offsite Transfer
06061.2K1.8K2.4K3.0K 20192020202120222023 Pounds Released

Year-over-Year Comparison

Year Total Chemicals YoY Change
2019 2.9K lbs 11
2020 2.6K lbs 11 -10.5%
2021 2.9K lbs 11 +13.8%
2022 3.0K lbs 11 +3.1%
2023 1.9K lbs 11 -36.1%

Top Chemicals by Year

Chemical 20192020202120222023 Total
n-Hexane 818 882 860 875 723 4.2K
Toluene 523 578 607 575 434 2.7K
Xylene (mixed isomers) 602 346 456 376 275 2.1K
Benzene 347 376 356 363 272 1.7K
Polycyclic aromatic compounds 180 89 330 491 4 1.1K
Cyclohexane 193 204 200 201 151 949
Ethylbenzene 71 58 73 87 43 332
Cumene 137 6 10 8 6 167
Naphthalene 2 33 26 26 23 110
Benzo[g,h,i]perylene 7 4 13 19 0 43
1,2,4-Trimethylbenzene 6 6 6 7 4 29

About This Data

Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.

A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.

Frequently Asked Questions

Is Buffalo Terminal LLC getting cleaner or dirtier?
Based on EPA TRI data from 2019–2023, Buffalo Terminal LLC's total toxic releases have decreased by approximately 33%.
What time period does this trend data cover?
This page shows 5 years of EPA Toxic Release Inventory data from 2019–2023. Release quantities are self-reported estimates filed annually by the facility.