Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL CHROMIUM CO INC
10 SENEXET RD, PUTNAM, CT, 06260
Parent company: NATIONAL CHROMIUM CO INC
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 | 1,1,1-Trichloroethane | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead compounds | Lead And Lead Compounds | Total (lbs) | |
| 2024 | — | — | — | 0 | 0 | |
| 2023 | — | — | — | 0 | 0 | |
| 2022 | — | — | — | 0 | 0 | |
| 2021 | — | — | — | 0 | 0 | |
| 2020 | — | — | 0 | — | 0 | |
| 2019 | — | — | 0 | — | 0 | |
| 2018 | — | — | 0 | — | 0 | |
| 2017 | — | — | 0 | — | 0 | |
| 2016 | — | — | 0 | — | 0 | |
| 1992 | 13,790 | — | — | — | 13,790 | |
| 1991 | 20,923 | — | — | — | 20,923 | |
| 1990 | 29,184 | — | — | — | 29,184 | |
| 1989 | 29,318 | 10,884 | — | — | 40,202 | |
| 1988 | 23,327 | — | — | — | 23,327 | |
▎ 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.