Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MATEP LLC
474 BROOKLINE AVE, BOSTON, MA, 02215
Parent company: LONGWOOD ENERGY PARTNERS 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 | Ammonia | Naphthalene | Polycyclic aromatic compounds | Total (lbs) | ||
| 2024 | 7,975 | — | — | 7,975 | ||
| 2023 | 7,107 | — | — | 7,107 | ||
| 2022 | 8,326 | — | — | 8,326 | ||
| 2021 | 8,086 | — | — | 8,086 | ||
| 2020 | 7,849 | — | — | 7,849 | ||
| 2019 | 7,587 | — | — | 7,587 | ||
| 2018 | 7,518 | — | — | 7,518 | ||
| 2017 | 8,867 | — | — | 8,867 | ||
| 2016 | 9,785 | — | — | 9,785 | ||
| 2015 | 10,375 | 4 | 1 | 10,380 | ||
| 2014 | 10,510 | 5 | 2 | 10,517 | ||
| 2013 | 9,752 | — | — | 9,752 | ||
| 2012 | 8,660 | 4 | 2 | 8,666 | ||
| 2011 | 15,580 | — | — | 15,580 | ||
| 2010 | 6,575 | — | — | 6,575 | ||
| 2009 | 4,757 | — | — | 4,757 | ||
| 2008 | 4,783 | — | — | 4,783 | ||
| 2007 | 6 | — | — | 6 | ||
| 2006 | 5 | — | — | 5 | ||
| 2005 | 20 | 163 | — | 183 | ||
| 2004 | 168 | 250 | — | 418 | ||
| 2003 | 199 | — | — | 199 | ||
| 2002 | 181 | — | — | 181 | ||
| 2001 | 254 | — | — | 254 | ||
| 2000 | — | — | 280 | 280 | ||
▎ 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.