Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALDRICH CHEMICAL CO INC
1101 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 | Methanol | Chloroform | Dichloromethane | Carbon tetrachloride | Acetone | Total (lbs) |
| 1993 | 255 | — | — | — | — | 255 |
| 1992 | 255 | — | — | 255 | — | 510 |
| 1991 | 255 | — | — | — | — | 255 |
| 1990 | 250 | 250 | 250 | — | 250 | 1,505 |
| 1989 | 250 | 250 | 250 | — | — | 750 |
▎ 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.