Total reported releases
Total reported releases at Jessop Steel LLC have risen 54% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Jessop Steel LLC
Total reported releases 167k lb rose modestly year over year (+7%). Total releases concentrations are up 55% since 2010.
500 GREEN ST, Washington, Pennsylvania · 331110 · Primary Metals · operated by Ati INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2010.
Nickel And Nickel Compounds
Nickel And Nickel Compounds concentrations are up 26% since 2010.
Manganese And Manganese Compounds
Manganese And Manganese Compounds concentrations have more than doubled since 2010.
Copper And Copper Compounds
Copper And Copper Compounds concentrations are up 40% since 2010.
Nitric acid
Nitric acid concentrations have fallen 13% since 2010.
Hydrogen fluoride
Hydrogen fluoride concentrations have fallen 13% since 2010.
Cobalt And Cobalt Compounds
Cobalt And Cobalt Compounds concentrations have more than doubled since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than halved since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (29 Census block groups, population-weighted demographics): a population of 28,492. Why we surface this →
34.2%
Low-income
18.1%
People of color
5.3%
Under age 5
20.3%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
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.