Porcelen LTD Ct LLC
Total reported releases 655 lb rose modestly year over year (+7%). Total releases concentrations have more than halved since 2010.
129 LEEDER HILL DR, Hamden, Connecticut · 325510 · Chemicals
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
N-Methyl-2-pyrrolidone
N-Methyl-2-pyrrolidone concentrations have more than halved 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.