Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
MKS INSTRUMENTS INC HPS PRO DUCTS DIV
5330 STERLING DR, BOULDER, CO, 80301
Parent company: MKS INSTRUMENTS INC
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Nickel | Chromium | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Nickel compounds | Total |
|---|---|---|---|---|---|
| 1994 | 255 | 5 | — | — | 260 |
| 1993 | 255 | 255 | — | — | 510 |
| 1992 | 255 | 255 | — | — | 510 |
| 1991 | 255 | 255 | — | — | 510 |
| 1990 | — | — | 5 | 5 | 10 |