Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PIONEER CIRCUITS INC
3000 SOUTH SHANNON STREET, SANTA ANA, CA, 92704
Parent company: NA
Carcinogen
PBT
— 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 | Nitric acid | Copper | Lead | Total (lbs) | ||
| 2024 | 10 | 0 | 0 | 10 | ||
| 2023 | 10 | 3 | 0 | 13 | ||
| 2022 | 10 | 1 | 0 | 12 | ||
| 2021 | 10 | 250 | 3 | 263 | ||
| 2020 | 255 | — | 3 | 258 | ||
| 2019 | — | — | 1 | 1 | ||
| 2018 | — | — | 1 | 1 | ||
▎ 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.