Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SENTINEL INDUSTRIES INC.
2016 AR 56 HWY, CALICO ROCK, AR, 72519
Parent company: NA
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 | Chromium | Copper | Arsenic | Arsenic compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) |
| 1997 | — | — | — | 11 | 11 | 33 |
| 1996 | 11 | 11 | 11 | — | — | 33 |
| 1995 | 12 | 13 | 11 | — | — | 36 |
| 1994 | 260 | 32 | 27 | — | — | 319 |
| 1993 | 10 | 10 | 10 | — | — | 30 |
| 1992 | — | — | — | 10 | 10 | 30 |
| 1991 | — | — | — | 10 | 10 | 30 |
| 1990 | — | — | — | 10 | 10 | 30 |
▎ 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.