Synthomer Jefferson Hills LLC – Emissions Trend
Jefferson Hills, PA · 2019–2024 · Parent: Yule Catto Inc.
This page assembles 6 consecutive years of EPA Toxics Release Inventory Form R filings for Synthomer Jefferson Hills LLC, spanning 2019–2024. 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 307.9K in 2019 and closed at 152.7K in 2024 – a decrease of 50.4% 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 Nitrate compounds (water dissociable; reportable only when in aqueous solution) at 1.1M, followed by Ammonia at 549.4K.
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 chemicals facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Synthomer Jefferson Hills LLC's total reported releases fell from 545.0 thousand lb in 2022 to 351.6 thousand lb in 2023, based on EPA TRI filings.
- Synthomer Jefferson Hills LLC's water releases fell from 88 lb in 2022 to 48 lb in 2023, based on EPA TRI filings.
- Synthomer Jefferson Hills LLC's off-site transfers fell from 470.1 thousand lb in 2022 to 302.5 thousand lb in 2023, based on EPA TRI filings.
- Synthomer Jefferson Hills LLC's air releases fell from 74.9 thousand lb in 2022 to 49.0 thousand lb in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 307.9K lbs | 11 | - |
| 2020 | 353.1K lbs | 12 | +14.7% |
| 2021 | 473.2K lbs | 11 | +34.0% |
| 2022 | 545.0K lbs | 11 | +15.2% |
| 2023 | 351.6K lbs | 11 | -35.5% |
| 2024 | 152.7K lbs | 11 | -56.6% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | Total |
|---|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 95.1K | 133.9K | 287.8K | 337.6K | 208.6K | 18.9K | 1.1M |
| Ammonia | 33.5K | 129.6K | 110.4K | 117.3K | 82.8K | 75.9K | 549.4K |
| Toluene | 50.8K | 72.1K | 55.0K | 70.1K | 43.7K | 45.4K | 337.1K |
| Xylene (mixed isomers) | 86.3K | 1.1K | 672 | 710 | 712 | 653 | 90.2K |
| Styrene | 11.6K | 12.2K | 14.8K | 14.5K | 10.7K | 10.1K | 73.9K |
| Ethylbenzene | 28.9K | 2.0K | 2.9K | 756 | 577 | 628 | 35.7K |
| Cumene | 1.1K | 1.1K | 952 | 957 | 874 | 959 | 5.9K |
| Ethylene glycol | - | - | - | 2.2K | 3.7K | - | 5.8K |
| 1,2,4-Trimethylbenzene | 679 | 1.1K | 755 | 938 | 38 | 38 | 3.5K |
| Isoprene | - | - | - | - | - | - | 0 |
| Boron trifluoride | - | - | - | - | - | - | 0 |
| Nonylphenol Ethoxylates | - | - | - | - | - | - | 0 |
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
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Read our methodology - how this data is sourced, computed, and verified.