Marmon Utility LLC
Total reported releases 466 lb fell modestly year over year (-6%). Total releases concentrations have more than halved since 2010.
49 DAY ST, Seymour, Connecticut · 335929 · Electrical Equipment · operated by Berkshire Hathaway INC
Notable Signals
No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.
What This Facility Releases
Zinc compounds
Zinc compounds concentrations have more than halved since 2010.
Lead compounds
Lead compounds concentrations have more than halved since 2010.
Copper
Copper concentrations have more than doubled since 2010.
Around this facility Population Characteristics
New Haven County County, CT (no Census block groups within 3 miles — falling back to containing county).
Demographic shares, national-percentile rankings (PM2.5, ozone, NO₂, diesel particulate, lead-paint risk, NPL/RMP/TSDF/NPDES proximity, drinking-water non-compliance), and EJ disparity scores will render here once the EJScreen-clone ingest completes for this geography. Why this section matters →
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.