Facility detail

MARMON UTILITY LLC

49 DAY ST, SEYMOUR, CT, 06483

Parent company: BERKSHIRE HATHAWAY INC

Carcinogen PBT — EPA classifications across all reporting years

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Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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	Zinc compounds	Lead	Lead compounds	Copper	Total (lbs)
2024	—	35	—	4	10	49
2023	—	39	—	10	22	72
2022	—	33	—	6	8	47
2021	—	41	—	—	12	62
2020	—	55	—	10	12	77
2019	—	93	—	—	15	121
2018	—	30	—	—	6	41
2017	—	32	—	6	7	45
2016	—	41	—	4	4	49
2015	—	39	—	6	7	52
2014	—	31	—	2	5	38
2013	—	107	—	27	22	156
2012	—	111	—	12	8	131
2011	—	82	—	12	8	102
2010	—	69	—	7	2	78
2009	—	12	—	64	3	79
2008	—	19	—	69	4	92
2007	—	78	—	85	12	175
2006	—	24	—	64	4	92
2005	—	118	—	75	50	243
2004	—	39	—	25	10	74
2003	—	8	8	1	1	18
2002	—	33	10	4	2	49
2001	—	4	9	6	3	22
2000	—	10	10	5	5	30
1999	—	21	10	5	5	41
1998	—	26	10	5	5	46
1997	—	12	5	5	—	22
1996	—	61	3	—	4	68
1995	—	34	1	—	—	35
1994	—	43	1	—	—	44
1993	—	—	1	—	—	1
1992	—	—	1	—	—	1
1991	—	—	1	—	—	1
1990	—	—	5	—	—	5
1989	3,960	—	250	—	—	4,210
1988	—	—	250	—	—	250
1987	—	—	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.