Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AMERICAN CHEMET CORP
145 HWY 282, EAST HELENA, MT, 59635
Parent company: NA
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 | Copper compounds | Ammonia | Copper And Copper Compounds | Methanol | Zinc compounds | Total (lbs) |
| 2024 | — | 3,399 | 10,684 | — | — | 14,086 |
| 2023 | — | 2,952 | 9,251 | — | — | 12,206 |
| 2022 | — | 4,559 | 10,641 | — | — | 15,203 |
| 2021 | — | 27,721 | 4,294 | — | — | 32,018 |
| 2020 | — | 19,043 | 3,596 | — | — | 22,642 |
| 2019 | 3,017 | 20,955 | — | — | — | 28,568 |
| 2018 | — | 19,871 | 9,051 | — | — | 28,924 |
| 2017 | 8,496 | 14,369 | — | — | — | 24,416 |
| 2016 | 13,517 | 13,031 | — | — | 10 | 27,750 |
| 2015 | 12,811 | 13,763 | — | — | 5 | 28,263 |
| 2014 | 9,387 | 9,222 | — | — | 7 | 20,121 |
| 2013 | 8,578 | — | — | — | 10 | 9,960 |
| 2012 | 9,811 | — | — | — | 285 | 11,438 |
| 2011 | 11,822 | — | — | — | 509 | 13,253 |
| 2010 | 12,818 | — | — | — | 518 | 14,590 |
| 2009 | 12,140 | — | — | — | 410 | 12,554 |
| 2008 | 14,551 | — | — | — | 635 | 15,190 |
| 2007 | 12,377 | — | — | — | 667 | 13,047 |
| 2006 | 8,033 | — | — | — | 660 | 8,696 |
| 2005 | 8,464 | — | — | — | 693 | 9,160 |
| 2004 | 12,486 | — | — | — | 1,233 | 13,725 |
| 2003 | 11,651 | — | — | — | 683 | 12,338 |
| 2002 | 11,655 | — | — | — | 1,121 | 12,779 |
| 2001 | 9,404 | — | — | — | 1,215 | 10,622 |
| 2000 | 7,685 | — | — | — | 1,283 | 8,968 |
| 1999 | 6,660 | — | — | — | 724 | 7,384 |
| 1998 | 4,810 | — | — | — | 740 | 5,550 |
| 1997 | 5,700 | — | — | — | 697 | 6,397 |
| 1996 | 4,350 | — | — | — | 500 | 4,850 |
| 1995 | 5,150 | — | — | — | 500 | 5,650 |
| 1994 | 9,150 | — | — | — | 500 | 9,650 |
| 1993 | 9,550 | — | — | — | 500 | 10,050 |
| 1992 | 9,050 | — | — | 11,900 | 500 | 21,450 |
| 1991 | 7,550 | — | — | 15,450 | 500 | 23,500 |
| 1990 | 6,186 | — | — | — | 651 | 6,837 |
| 1989 | 8,350 | — | — | — | 830 | 9,180 |
| 1988 | 13,750 | — | — | — | 1,550 | 15,300 |
▎ 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.