Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COORSTEK INC CLEAR CREEK VALLEY OPERATIONS
17750 W 32ND AVE, GOLDEN, CO, 80401
Parent company: NA
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 | Methyl ethyl ketone | Methanol | Ammonia | Butyl benzyl phthalate | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 2007 | — | — | 5,205 | — | — | 5,205 |
| 2006 | — | — | 27 | — | — | 27 |
| 2005 | — | — | 28 | — | — | 28 |
| 2004 | — | — | 37 | — | — | 37 |
| 2003 | 1,075 | — | 32 | — | — | 1,107 |
| 2002 | 1,500 | — | 27 | — | — | 1,527 |
| 2001 | 6,672 | — | 32 | — | — | 6,704 |
| 2000 | 10,551 | — | 33 | — | — | 10,584 |
| 1999 | 2,600 | — | 35 | — | — | 2,635 |
| 1998 | 3,100 | — | 30 | — | — | 3,130 |
| 1997 | 4,400 | — | 30 | — | — | 4,430 |
| 1996 | 3,500 | — | 40 | — | — | 3,540 |
| 1995 | 5,800 | — | 30 | — | — | 5,830 |
| 1994 | 5,600 | — | 40 | — | — | 5,640 |
| 1993 | 6,600 | 500 | 40 | 1,500 | — | 8,640 |
| 1992 | 5,700 | 500 | 200 | 2,000 | — | 8,400 |
| 1991 | 98,400 | 9,850 | 250 | 1,600 | 290 | 110,390 |
| 1990 | 128,900 | 16,400 | 250 | — | 330 | 145,881 |
▎ 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.