Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALDRICH CHEMICAL CO INC
940 W ST PAUL AVE, MILWAUKEE, WI, 53233
Parent company: SIGMA-ALDRICH CORP
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 | Methyl tert-butyl ether | Methanol | Dichloromethane | Acetone | Chloroform | Total (lbs) |
| 2004 | 1,000 | — | — | — | — | 1,000 |
| 2003 | 1,000 | 500 | 500 | — | 255 | 2,510 |
| 2002 | 1,548 | 2,076 | 1,522 | — | 255 | 5,656 |
| 2001 | 755 | 255 | 255 | — | 1,000 | 2,520 |
| 2000 | 2,710 | 2,059 | 2,407 | — | 1,000 | 8,686 |
| 1999 | 1,275 | 1,777 | 1,000 | — | 1,000 | 5,307 |
| 1998 | 500 | — | 1,000 | — | 500 | 2,000 |
| 1997 | 1,000 | 1,038 | 1,000 | — | 500 | 3,538 |
| 1996 | 1,854 | 1,075 | 1,628 | — | 595 | 5,152 |
| 1995 | 500 | 1,000 | 500 | — | 500 | 4,000 |
| 1994 | 500 | 255 | 500 | — | 500 | 2,265 |
| 1993 | 1,000 | 500 | 255 | 1,000 | 1,000 | 4,007 |
| 1992 | 500 | 500 | 255 | 1,750 | 500 | 4,515 |
| 1991 | 500 | 500 | 255 | 2,304 | 500 | 5,319 |
| 1990 | — | 500 | — | 1,500 | — | 2,500 |
| 1989 | 500 | 500 | 500 | 2,452 | 500 | 4,952 |
| 1988 | — | 500 | — | — | 500 | 2,000 |
| 1987 | — | — | — | 2,116 | — | 2,116 |
▎ 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.