Manganese compounds
Manganese compounds at Waupaca Foundry Plant 1 have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Waupaca Foundry Plant 1
Total reported releases 1.2M lb rose meaningfully year over year (+16%). Total releases concentrations have more than doubled since 2010.
406 N DIVISION ST, Waupaca, Wisconsin · 331511 · Primary Metals · operated by Monomoy Capital Partners
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at Waupaca Foundry Plant 1 have more than doubled since 2010 (through 2024).
Zinc compounds
Zinc compounds at Waupaca Foundry Plant 1 have more than doubled since 2010 (through 2024).
0000108952
0000108952 releases at Waupaca Foundry Plant 1 fell from 10k lb to 0 lb (100% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Zinc compounds
Zinc compounds concentrations have more than doubled since 2010.
Manganese compounds
Manganese compounds concentrations have more than doubled since 2010.
Lead compounds
Lead compounds concentrations have more than doubled since 2010.
Benzene
Benzene concentrations have fallen 14% since 2010.
Copper compounds
Copper compounds concentrations are up 58% since 2010.
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations are up 56% since 2010.
Barium And Barium Compounds
Barium And Barium Compounds concentrations are roughly unchanged from 2013.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 61% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (5 Census block groups, population-weighted demographics): a population of 7,233. Why we surface this →
24.9%
Low-income
5.8%
People of color
4.1%
Under age 5
20.9%
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.