US Army Fort Irwin National Training Center – Emissions Trend
Fort Irwin, CA · 2019–2023 · Parent: US Department of Defense
This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for US Army Fort Irwin National Training Center, 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 230.6K in 2019 and closed at 96.5K in 2023 – a decrease of 58.1% 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 461.7K, followed by Copper at 337.1K.
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 other facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- US Army Fort Irwin National Training Center's total reported releases fell from 269.6 thousand lb in 2022 to 96.5 thousand lb in 2023, based on EPA TRI filings.
- US Army Fort Irwin National Training Center's off-site transfers rose from 300 lb in 2022 to 1.6 thousand lb in 2023, based on EPA TRI filings.
- US Army Fort Irwin National Training Center's air releases fell from 25.1 thousand lb in 2022 to 2.8 thousand lb in 2023, based on EPA TRI filings.
- US Army Fort Irwin National Training Center's land releases fell from 244.2 thousand lb in 2022 to 92.2 thousand lb in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 230.6K lbs | 10 | - |
| 2020 | 287.1K lbs | 12 | +24.5% |
| 2021 | 97.9K lbs | 12 | -65.9% |
| 2022 | 269.6K lbs | 12 | +175.4% |
| 2023 | 96.5K lbs | 12 | -64.2% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | Total |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 174.6K | 81.6K | 81.6K | 98.1K | 25.8K | 461.7K |
| Copper | 30.6K | 155.6K | 11.7K | 103.9K | 35.3K | 337.1K |
| Zinc compounds | 12.7K | 24.7K | 16 | 55.6K | 5.7K | 98.7K |
| Lead And Lead Compounds | 258 | 25.1K | - | 11.8K | 8.0K | 45.1K |
| Nitroglycerin | - | - | - | - | 21.7K | 21.7K |
| Lead compounds | 12.1K | - | 4.4K | - | - | 16.6K |
| Naphthalene | 50 | 96 | 104 | 255 | 94 | 599 |
| Propylene | 236 | 43 | 10 | 18 | 14 | 321 |
| Hexachloroethane | - | 1 | - | 1 | - | 2 |
| Aluminum (fume or dust) | - | - | - | - | - | 0 |
| Dibutyl phthalate | - | - | - | - | - | 0 |
| Dinitrotoluene (mixed isomers) | - | - | - | - | - | 0 |
| Phosphorus (yellow or white) | - | - | - | - | - | 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
Is US Army Fort Irwin National Training Center getting cleaner or dirtier? ▼
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Read our methodology - how this data is sourced, computed, and verified.