Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PROSTAR CORP
909 W MURRAY, VISALIA, CA, 93291
Parent company: TOPPAN W INC
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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Copper | Copper compounds | Formaldehyde | Aluminum (fume or dust) | Total (lbs) |
| 1992 | — | — | 760 | 500 | 500 | 2,025 |
| 1991 | 1,000 | 1,000 | — | 255 | — | 2,255 |
| 1990 | 250 | — | — | — | — | 250 |
▎ 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.