Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PRC COMPOSITES LLC
1400 S CAMPUS AVE, ONTARIO, CA, 91761
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Styrene | Total (lbs) | ||||
| 2024 | 750 | 750 | ||||
| 2023 | 500 | 500 | ||||
| 2022 | 500 | 500 | ||||
| 2021 | 500 | 500 | ||||
| 2020 | 500 | 500 | ||||
| 2019 | 500 | 500 | ||||
| 2004 | 18,955 | 18,955 | ||||
| 2003 | 28,343 | 28,343 | ||||
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.