Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
W.R. GRACE & CO. - CONN., DAREX
2140 DAVIS ST, SAN LEANDRO, CA, 94577
Parent company: WR GRACE & 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 | n-Hexane | Cyclohexane | Toluene | Methyl ethyl ketone | Formaldehyde | Total (lbs) |
| 2008 | 1,658 | — | 196 | — | — | 1,854 |
| 2007 | 6,803 | 834 | 802 | — | — | 8,439 |
| 2006 | 6,903 | — | — | — | — | 6,903 |
| 2005 | 8,088 | 1,001 | 896 | — | — | 9,985 |
| 2004 | 5,107 | 629 | 532 | — | — | 6,268 |
| 2003 | 1,894 | — | — | 775 | — | 2,669 |
| 2002 | 1,760 | — | — | 567 | — | 2,327 |
| 2001 | 1,664 | — | — | — | — | 1,664 |
| 2000 | 969 | — | — | — | — | 969 |
| 1999 | 1,732 | — | — | — | — | 1,732 |
| 1998 | 1,013 | — | — | — | — | 1,013 |
| 1997 | 1,416 | — | — | — | — | 1,416 |
| 1996 | 1,411 | — | — | — | — | 1,411 |
| 1995 | 8,900 | — | 135 | — | — | 9,035 |
| 1994 | — | 5,251 | 220 | — | — | 5,473 |
| 1993 | — | 460 | 380 | — | — | 843 |
| 1992 | — | 1,029 | 660 | — | 300 | 2,054 |
| 1991 | — | 946 | 820 | — | 249 | 2,066 |
| 1990 | — | 1,070 | 1,320 | — | 150 | 2,595 |
| 1989 | — | 1,750 | 1,100 | — | — | 2,935 |
| 1988 | — | 1,990 | 2,380 | — | — | 4,582 |
▎ 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.