Lhoist North America of Texas (plant Operations) – Emissions Trend
Clifton, TX · 2019–2023 · Parent: Lhoist N.a.
This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for Lhoist North America of Texas (plant Operations), 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 16.9K in 2019 and closed at 1.9K in 2023 – a decrease of 89.0% 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 Vanadium compounds at 35.6K, followed by Nickel compounds at 11.3K.
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 nonmetallic mineral product facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Lhoist North America of Texas (plant Operations)'s total reported releases fell from 3.1 thousand lb in 2022 to 1.9 thousand lb in 2023, based on EPA TRI filings.
- Lhoist North America of Texas (plant Operations)'s air releases fell from 51 lb in 2022 to 22 lb in 2023, based on EPA TRI filings.
- Lhoist North America of Texas (plant Operations)'s chemicals reported rose from 2 in 2022 to 3 in 2023, based on EPA TRI filings.
- Lhoist North America of Texas (plant Operations)'s land releases fell from 3.1 thousand lb in 2022 to 1.8 thousand lb in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 16.9K lbs | 4 | - |
| 2020 | 11.2K lbs | 4 | -33.6% |
| 2021 | 14.6K lbs | 3 | +30.4% |
| 2022 | 3.1K lbs | 2 | -78.5% |
| 2023 | 1.9K lbs | 3 | -40.9% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | Total |
|---|---|---|---|---|---|---|
| Vanadium compounds | 12.0K | 8.4K | 10.3K | 3.1K | 1.7K | 35.6K |
| Nickel compounds | 4.6K | 2.6K | 4.1K | - | - | 11.3K |
| Lead compounds | 174 | 139 | 151 | 44 | - | 507 |
| Lead And Lead Compounds | - | - | - | - | 117 | 117 |
| Mercury compounds | 34 | 25 | - | - | - | 59 |
| Mercury And Mercury Compounds | - | - | - | - | 16 | 16 |
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.