Copper compounds
Copper compounds releases at Mpc Plating CO LLC fell from 36k lb to 15k lb (58% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Mpc Plating CO LLC
Total reported releases 80k lb fell meaningfully year over year (-27%). Total releases concentrations have fallen 48% since 2010.
9921 CLINTON RD, Brooklyn, Ohio · 332813 · Fabricated Metals · operated by Mpc Plating INC
Anomaly engine
Notable Signals
Chromium
Chromium at Mpc Plating CO LLC have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations have fallen 50% since 2016.
Nickel compounds
Nickel compounds concentrations have fallen 33% since 2016.
Copper compounds
Copper compounds concentrations have more than halved since 2016.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are roughly unchanged from 2012.
Formaldehyde
Formaldehyde concentrations are roughly unchanged from 2010.
Chromium
Chromium concentrations have more than halved since 2010.
Nickel
Nickel concentrations have more than halved since 2010.
Copper
Copper 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 (173 Census block groups, population-weighted demographics): a population of 168,131. Why we surface this →
49.8%
Low-income
44.1%
People of color
5.7%
Under age 5
12.5%
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.