Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARMON UTILITY LLC
53 OLD WILTON RD, MILFORD, NH, 03055
Parent company: BERKSHIRE HATHAWAY INC
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 | Acetophenone | Freon 113 (CFC-113) | Copper | Total (lbs) | ||
| 2024 | 5 | — | 10 | 15 | ||
| 2023 | 5 | — | 10 | 15 | ||
| 2022 | 5 | — | 10 | 15 | ||
| 2021 | 5 | — | 10 | 15 | ||
| 2020 | 5 | — | 10 | 15 | ||
| 2019 | 5 | — | 5 | 10 | ||
| 2018 | 5 | — | 5 | 10 | ||
| 2017 | 5 | — | 10 | 15 | ||
| 2016 | — | — | 10 | 10 | ||
| 2015 | 500 | — | 10 | 510 | ||
| 2014 | 255 | — | 10 | 265 | ||
| 2013 | 255 | — | 6 | 261 | ||
| 2012 | 161,906 | — | 5 | 161,911 | ||
| 2011 | 82,255 | — | 15 | 82,270 | ||
| 2010 | — | — | 5 | 5 | ||
| 2009 | — | — | 5 | 5 | ||
| 2008 | — | — | 5 | 5 | ||
| 2007 | — | — | 5 | 5 | ||
| 2006 | — | — | 5 | 5 | ||
| 2005 | — | — | 5 | 5 | ||
| 2004 | — | — | 5 | 5 | ||
| 2003 | — | — | 5 | 5 | ||
| 2002 | — | — | 5 | 5 | ||
| 2001 | — | — | 5 | 5 | ||
| 2000 | — | — | 5 | 5 | ||
| 1999 | — | — | 5 | 5 | ||
| 1994 | 79,000 | — | — | 79,000 | ||
| 1988 | — | 22,149 | — | 22,149 | ||
| 1987 | — | 20,000 | — | 20,000 | ||
▎ 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.