Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CHECON LLC
30 LARSEN WAY, NORTH ATTLEBORO, MA, 02763
Parent company: ALLOY HOLDINGS LLC
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 | Nitric acid | Silver compounds | Copper | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Silver And Silver Compounds | Total (lbs) |
| 2024 | — | 57 | 174 | — | — | 239 |
| 2023 | — | — | 146 | 787 | 55 | 996 |
| 2022 | — | — | — | — | 67 | 75 |
| 2021 | — | 67 | 157 | — | — | 237 |
| 2020 | — | 57 | 95 | — | — | 164 |
| 2019 | — | — | 161 | — | 62 | 235 |
| 2018 | — | — | 193 | — | 74 | 279 |
| 2017 | — | 76 | — | — | — | 90 |
| 2016 | — | 74 | — | — | — | 86 |
| 2015 | — | 59 | — | — | — | 70 |
| 2014 | — | 95 | — | — | — | 111 |
| 2013 | — | 90 | — | — | — | 104 |
| 2012 | — | 99 | — | — | — | 112 |
| 2011 | 1,000 | 87 | — | — | — | 1,104 |
| 2010 | — | 97 | — | — | — | 141 |
| 2009 | — | 30 | — | — | — | 45 |
| 2008 | — | 45 | — | — | — | 69 |
| 2006 | — | — | — | — | — | 1 |
| 2005 | — | 1 | — | — | — | 2 |
▎ 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.