Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALKEMIN, S. DE R.L. DE C.V.
2480 W TWIN BUTTES RD, SAHUARITA, AZ, 85629
Parent company: TESSENDERLO KERLEY INC
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 | Carbon disulfide | Maleic anhydride | n-Butyl alcohol | Ammonia | Certain glycol ethers | Total (lbs) |
| 2001 | 20 | — | — | — | — | 20 |
| 2000 | 20 | — | — | — | — | 20 |
| 1999 | 3,099 | 250 | — | — | — | 3,349 |
| 1998 | — | 250 | — | — | — | 250 |
| 1997 | 487 | 500 | 250 | — | — | 1,237 |
| 1996 | 185 | 500 | 500 | — | — | 1,185 |
| 1995 | 255 | 255 | 255 | 250 | 250 | 1,265 |
| 1994 | 10 | 10 | 10 | 255 | 5 | 290 |
| 1993 | 10 | 2,010 | 10 | 255 | 250 | 2,535 |
| 1992 | 250 | 10 | 5 | 250 | 250 | 765 |
| 1991 | 5 | 10 | 5 | 250 | 250 | 520 |
| 1990 | 10 | 5 | — | — | — | 15 |
| 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.