Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SIMPSON COATINGS GROUP INC
111 S MAPLE AVE, SOUTH SAN FRANCISCO, CA, 94080
Parent company: DJ SIMPSON CO INC
Carcinogen
PBT
— 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 | Xylene (mixed isomers) | Toluene | Methyl ethyl ketone | 1,1,1-Trichloroethane | Certain glycol ethers | Total (lbs) |
| 2007 | 275 | 282 | — | — | 211 | 768 |
| 2006 | 362 | 377 | — | — | 158 | 897 |
| 2005 | 536 | 553 | — | — | 155 | 1,244 |
| 2004 | 404 | 523 | — | — | 158 | 1,085 |
| 2003 | 392 | 537 | 343 | — | 178 | 1,452 |
| 2002 | 648 | 774 | 439 | — | 169 | 2,040 |
| 2001 | 468 | 766 | 469 | — | 136 | 1,843 |
| 2000 | 804 | 934 | 674 | — | 199 | 2,611 |
| 1999 | 890 | 729 | 476 | — | 172 | 2,267 |
| 1998 | 1,290 | 1,178 | 689 | — | 343 | 3,648 |
| 1997 | 975 | 1,061 | 785 | — | 278 | 3,099 |
| 1996 | 1,423 | 1,132 | 971 | — | 212 | 3,909 |
| 1995 | 1,102 | 834 | 615 | — | 199 | 2,750 |
| 1994 | 979 | 1,160 | 762 | — | 200 | 3,101 |
| 1993 | 893 | 758 | 573 | — | 185 | 3,034 |
| 1992 | 933 | 849 | 633 | 426 | 216 | 3,775 |
| 1991 | 829 | 1,038 | 709 | 963 | 316 | 4,521 |
| 1990 | 1,000 | 1,000 | 1,000 | 1,785 | 500 | 6,785 |
| 1989 | 1,000 | 1,000 | 1,000 | 1,957 | — | 7,457 |
| 1988 | 1,450 | — | 652 | 1,270 | 331 | 3,703 |
| 1987 | — | — | 500 | — | — | 500 |
▎ 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.