Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
UNIMETAL SURFACE FINISHING LLC
135 S MAIN ST, THOMASTON, CT, 06787
Parent company: UNIMETAL SURFACE FINISHING LLC
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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Tetrachloroethylene | 1,1,1-Trichloroethane | Zinc compounds | Sodium nitrite | Total (lbs) |
| 2024 | — | 7,346 | — | 250 | — | 7,596 |
| 2023 | — | 12,387 | — | — | — | 12,397 |
| 2022 | — | 13,687 | — | — | — | 13,694 |
| 2021 | — | 1,140 | — | 1 | — | 1,141 |
| 2020 | 20,092 | 1,500 | — | 115 | — | 21,744 |
| 2019 | 42,150 | 10 | — | 750 | — | 43,111 |
| 2018 | 92,019 | 10 | — | 915 | — | 92,944 |
| 2017 | 81,963 | — | — | 982 | — | 82,945 |
| 2016 | 61,643 | — | — | 250 | — | 61,893 |
| 2015 | 67,636 | — | — | 250 | — | 67,886 |
| 2014 | 57,520 | — | — | 250 | — | 57,770 |
| 2013 | 65,623 | — | — | 250 | — | 65,873 |
| 2012 | 58,684 | — | — | 250 | — | 58,934 |
| 2011 | 46,978 | — | — | 250 | — | 47,228 |
| 2010 | 52,226 | 8,790 | — | 250 | — | 61,266 |
| 2009 | 63,229 | 49,824 | — | 250 | — | 113,303 |
| 2008 | 64,026 | 55,979 | — | — | — | 120,005 |
| 2007 | 128,125 | 67,254 | — | — | — | 195,379 |
| 2006 | 118,359 | 27,622 | — | — | — | 145,982 |
| 2005 | 132,633 | 61,876 | — | — | — | 194,509 |
| 2004 | 125,334 | 43,216 | — | — | — | 168,551 |
| 2003 | 122,585 | 36,076 | — | — | — | 158,662 |
| 2002 | 104,463 | 49,304 | — | — | — | 153,987 |
| 2001 | 158,222 | 40,674 | — | — | 1,698 | 200,596 |
| 2000 | — | 64,005 | — | 98 | — | 64,321 |
| 1998 | — | 23,603 | — | 250 | — | 24,353 |
| 1997 | — | 94,049 | — | 250 | — | 94,799 |
| 1993 | — | 205,000 | 68,214 | 5 | — | 273,474 |
| 1992 | — | 141,000 | 101,000 | 250 | — | 242,505 |
| 1991 | — | 129,000 | 109,000 | 250 | — | 238,750 |
| 1990 | — | 51,044 | 55,016 | 23 | — | 106,123 |
| 1989 | — | 32,688 | 63,733 | 24 | — | 96,500 |
| 1988 | — | — | — | 8 | — | 8 |
▎ 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.