Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BROOKS INSTRUMENT DIV
407 W VINE ST, HATFIELD, PA, 19440
Parent company: EMERSON ELECTRIC CO
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 | Trichloroethylene | 1,1,1-Trichloroethane | Chromium | Total (lbs) | ||
| 1998 | — | — | 12 | 12 | ||
| 1997 | — | — | 10 | 10 | ||
| 1996 | — | — | 10 | 10 | ||
| 1995 | — | — | 10 | 10 | ||
| 1993 | 17,340 | — | — | 17,340 | ||
| 1992 | 14,298 | — | — | 14,298 | ||
| 1991 | 23,542 | — | — | 23,542 | ||
| 1990 | — | 2,559 | — | 2,559 | ||
▎ 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.