Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MIDDLETOWN POWER LLC
1866 RIVER RD, MIDDLETOWN, CT, 06457
Parent company: ARCLIGHT ENERGY PARTNERS FUND VII LP
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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Ammonia | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Vanadium compounds | Lead compounds | Total (lbs) |
| 2024 | — | 7,857 | — | — | — | 7,862 |
| 2023 | — | 26,122 | — | — | — | 26,128 |
| 2022 | — | 27,991 | — | — | — | 28,011 |
| 2021 | — | 15,879 | — | — | — | 15,887 |
| 2020 | — | 28,932 | — | — | — | 28,937 |
| 2019 | — | 31,343 | — | — | — | 31,348 |
| 2018 | — | 31,025 | — | — | — | 31,034 |
| 2017 | — | 23,211 | — | — | — | 23,220 |
| 2016 | — | 25,158 | — | — | — | 25,167 |
| 2015 | — | 6,723 | — | — | — | 6,733 |
| 2014 | — | 640 | — | — | — | 644 |
| 2013 | — | — | — | — | — | 9 |
| 2012 | — | — | — | — | — | 9 |
| 2011 | — | 1,437 | — | — | — | 1,441 |
| 2010 | — | 2,250 | — | — | — | 2,255 |
| 2009 | — | 59 | — | — | 4 | 69 |
| 2008 | — | 1,450 | — | — | — | 1,454 |
| 2007 | 12,000 | 2,750 | — | — | 61 | 14,816 |
| 2006 | 8,500 | 2,075 | — | — | 53 | 10,628 |
| 2005 | 25,000 | 2,200 | — | — | 118 | 27,319 |
| 2004 | 20,000 | 2,300 | — | — | 72 | 22,373 |
| 2003 | 11,000 | 2,370 | — | — | 86 | 13,457 |
| 2002 | 7,400 | 2,580 | — | — | 50 | 10,030 |
| 2001 | 31,000 | 4,200 | 40,000 | 2,600 | 123 | 77,924 |
| 2000 | 54,000 | 2,700 | 64,000 | 16,000 | — | 136,702 |
| 1999 | 58,000 | 2,100 | 57,000 | — | — | 117,100 |
| 1998 | 45,000 | — | 68,000 | — | — | 113,000 |
▎ 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.