Total reported releases
Total reported releases at Continental Cement CO have risen 70% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Continental Cement CO
Total reported releases 192k lb rose modestly year over year (+13%). Total releases concentrations are up 70% since 2010.
301 E FRONT ST, Buffalo, Iowa · 327310 · Nonmetallic Mineral Product · operated by Summit Materials LLC
Anomaly engine
Notable Signals
Chromium
Chromium releases at Continental Cement CO rose from 4k lb to 32k lb (8.3×) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 24% since 2010.
Chromium
Chromium concentrations have more than doubled since 2022.
Ammonia
Ammonia concentrations are up 12% since 2019.
Manganese compounds
Manganese compounds concentrations are up 75% since 2016.
Zinc compounds
Zinc compounds concentrations are roughly unchanged from 2017.
Lead And Lead Compounds
Lead And Lead Compounds concentrations have more than halved since 2010.
Mercury And Mercury Compounds
Mercury And Mercury Compounds concentrations are up 10% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (3 Census block groups, population-weighted demographics): a population of 4,479. Why we surface this →
13.6%
Low-income
8.8%
People of color
4.9%
Under age 5
19.1%
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.