Facility detail

MASTERMOLD LLC

111 GRELL LN, JOHNSON CREEK, WI, 53038

Parent company: NA

Carcinogen — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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 Styrene Methyl ethyl ketone Toluene n-Butyl alcohol 1,2,4-Trimethylbenzene Total (lbs)
2024 12,830 — — 13,752 — 26,582
2023 15,825 — — 13,389 — 29,214
2022 18,777 — — — — 18,777
2021 13,600 — — — — 13,600
2020 9,542 — — — — 9,542
2019 9,755 — — — — 9,755
2018 13,113 — — — — 13,113
2017 7,301 — — — — 7,301
2016 10,784 — — — — 10,784
2015 9,168 — — 10,288 — 19,456
2014 10,420 — — — — 10,420
2013 10,156 — — — — 10,156
2012 8,156 — — — — 8,156
2011 7,381 — — — — 7,381
2010 6,262 — — — — 6,262
2009 5,340 — — — — 5,340
2008 9,462 — — — — 9,462
2007 9,120 — — — — 9,120
2006 650,710 — — — — 650,710
2005 14,336 — — — — 14,336
2004 15,611 — — — — 15,611
2003 12,120 — — — 11,902 24,022
2002 12,274 — — 11,233 — 23,507
2001 11,340 — — — 15,286 26,626
2000 530 16,520 26,932 — — 43,982
1999 430 13,537 23,601 — — 37,568
1998 281 13,864 21,942 — — 36,087
1997 236 13,553 15,879 — — 29,668
1996 251 11,406 17,956 — — 29,613
1995 250 250 4 — — 504
1994 250 250 4 — — 504
1993 2 10 6 — — 18
1992 2 10 6 — — 18
1991 2 10 6 — — 18
1989 500 18,146 3,414 — — 22,060
1988 — 55,620 5,678 — — 61,298

▎ 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.