Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ZEP MFG CO
2970 CORVIN DR, SANTA CLARA, CA, 95051
Parent company: NATIONAL SERVICES INDS
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 | 1,1,1-Trichloroethane | Methanol | Phosphoric acid | Certain glycol ethers | Total (lbs) | |
| 1994 | 311 | — | — | 6 | 317 | |
| 1993 | 390 | — | 1 | 6 | 397 | |
| 1992 | 7,500 | 360 | 1 | 13 | 7,874 | |
| 1991 | 9,829 | 663 | 10 | 16 | 10,518 | |
| 1990 | 13,000 | 670 | — | 17 | 13,687 | |
| 1989 | 11,728 | — | — | 18 | 11,746 | |
| 1988 | 475 | — | 85 | — | 560 | |
▎ 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.