Manganese compounds
Manganese compounds at Martin Marietta North Texas Cement LLC have more than halved since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Martin Marietta North Texas Cement LLC
Total reported releases 169k lb fell meaningfully year over year (-27%). Total releases concentrations have fallen 22% since 2010.
245 WARD RD, Midlothian, Texas · 327310 · Nonmetallic Mineral Product · operated by Martin Marietta Materials INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
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 37% since 2010.
Manganese compounds
Manganese compounds concentrations have more than halved 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 have fallen 44% since 2010.
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 53% since 2010.
Dioxin and dioxin-like compounds
Dioxin and dioxin-like compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
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 10,309. Why we surface this →
15.3%
Low-income
27.3%
People of color
8.9%
Under age 5
12.1%
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.