Facility detail

STANLEY ENGINEERED FASTENING LLC

4 SHELTER ROCK LN, DANBURY, CT, 06810

Parent company: STANLEY BLACK & DECKER

Carcinogen PBT — 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 1,1,1-Trichloroethane Lead Copper Chromium Total (lbs)
2024 — 5 2 — 8
2023 — 5 2 — 7
2022 — 4 2 5 10
2021 — 4 2 — 5
2020 — 4 2 — 6
2019 — 4 2 — 6
2018 — 4 2 — 6
2017 — 5 5 — 10
2016 — 5 5 — 10
2015 — 5 5 — 10
2014 — 2 2 — 4
2006 — — 5 — 5
2004 — — 6 — 6
2003 — — 2 — 2
2001 — — 1 — 1
2000 — — 1 — 1
1991 13,000 — — — 13,000
1990 4,153 — — — 4,153
1989 15,380 — — — 15,380

▎ 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.