Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MINTEQ/SPECIALTY MINERALS
77 DAISY HILL RD, NORTH CANAAN, CT, 06018
Parent company: MINERALS TECHNOLOGIES INC
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 | Lead compounds | Manganese compounds | Propylene | Lead | Manganese | Total (lbs) |
| 2024 | — | — | — | — | 5 | 6 |
| 2023 | 6 | — | — | — | 24 | 34 |
| 2022 | — | — | — | — | 48 | 56 |
| 2021 | — | — | — | — | 30 | 39 |
| 2020 | — | — | — | — | 45 | 67 |
| 2019 | 96 | — | — | — | — | 96 |
| 2018 | — | — | — | — | — | 126 |
| 2017 | 126 | — | — | — | — | 126 |
| 2016 | 20 | — | — | — | — | 20 |
| 2015 | 6 | — | — | — | — | 6 |
| 2014 | 5 | — | — | — | — | 5 |
| 2013 | 101 | — | 500 | — | — | 601 |
| 2012 | 134 | — | 500 | — | — | 644 |
| 2011 | 284 | — | 500 | — | — | 794 |
| 2010 | 512 | — | 500 | — | — | 1,022 |
| 2009 | 291 | — | 57 | — | — | 358 |
| 2008 | 292 | — | — | — | — | 292 |
| 2007 | 118 | — | — | — | 2 | 120 |
| 2006 | 671 | — | — | — | 2 | 673 |
| 2005 | 377 | — | — | — | 5 | 382 |
| 2004 | 537 | — | — | — | 6 | 543 |
| 2003 | — | — | — | 450 | 7 | 458 |
| 2002 | — | — | — | 112 | 6 | 119 |
| 2001 | — | — | — | 90 | — | 90 |
| 1998 | — | 49 | — | — | — | 49 |
| 1997 | — | 49 | — | — | — | 49 |
| 1996 | — | 39 | — | — | — | 39 |
| 1995 | — | 87 | — | — | — | 94 |
| 1994 | — | 70 | — | — | — | 70 |
| 1993 | — | 72 | — | — | — | 72 |
| 1992 | — | 3 | — | — | — | 3 |
| 1991 | — | 72 | — | — | — | 74 |
| 1990 | — | 1,537 | — | — | — | 1,537 |
| 1989 | — | 77 | — | — | — | 77 |
| 1988 | — | 250 | — | — | — | 250 |
▎ 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.