EPA TRI Facility · Nonmetallic Mineral Product
Martin Marietta North Texas Cement LLC
Midlothian, TX · Parent: Martin Marietta Materials Inc
- Total releases
- 1.0M lbs
- Chemicals reported
- 8
- Carcinogens
- 1
- Primary pathway
- Air Releases
MIXED Form-R mix
Martin Marietta North Texas Cement LLC: how the 1.0M lbs splits
1.0M lbs across all reported pathways
- Air Releases 605.1K lbs 58.4%
- Land Disposal 429.4K lbs 41.4%
- Water Discharges 1.8K lbs 0.2%
Martin Marietta North Texas Cement LLC's 1.0M lbs Form-R total is MIXED - air releases is 58.4% of the bar. Next segment: land disposal at 41.4%. Leading chemical by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
HEAVY volume MIXED pathway TRACE-CARC
Martin Marietta North Texas Cement LLC is an EPA Toxics Release Inventory reporter in Midlothian, TX, in the nonmetallic mineral product sector. It reported 231.6K lbs of releases across 7 chemicals in 2023, and 1.0M lbs in total across its 2019-2023 reporting years. That ranks 1,270 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Martin Marietta North Texas Cement LLC is pounds #138 and chemical-count #369 at 1.0M lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Chaparral Steel Midlothian LP; Mm-Midlothian Railport Ready Mix; Buckley Oil Co - Midlothian Site; Qualico Steel Co Inc Texas Div. Similar-scale Nonmetallic Mineral Product peers outside Texas: St Marys Cement U.S. LLC; Knauf Insulation Inc.; Saint Gobain Industrial Ceramic Inc; Roxul USA Inc. Other Martin Marietta Materials Inc sites in this extract: Martin Marietta Magnesia Specialties Woodville; Mission Valley Rock; Martin Marietta Arizona LLC - River Ranch Plant; Martin Marietta Arizona LLC - Dobson Plant. Largest disclosed chemicals by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Manganese And Manganese Compounds; Zinc compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
Compare Martin Marietta North Texas Cement LLC with
Nearest reporters in Texas
- Chaparral Steel Midlothian LP Midlothian · 1.1M lbs
- Mm-Midlothian Railport Ready Mix Midlothian · 0 lbs
- Buckley Oil Co - Midlothian Site Midlothian · 46.0K lbs
- Qualico Steel Co Inc Texas Div Midlothian · 971 lbs
Similar-scale Nonmetallic Mineral Product sites elsewhere: St Marys Cement U.S. LLC (MI) · Knauf Insulation Inc. (CA) · Saint Gobain Industrial Ceramic Inc (NY)
Martin Marietta North Texas Cement LLC is a HEAVY · MIXED-pathway Form-R site in Midlothian, TX: 1.0M lbs across 8 chemicals (1 carcinogen-classified, TRACE-CARC). No single media clears 70% of the bar (lead segment air releases at 58.4%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include St Marys Cement U.S. LLC and Knauf Insulation Inc..
Martin Marietta North Texas Cement LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
1.0M lbs Top 5% higher than 95% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Martin Marietta North Texas Cement LLC in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Martin Marietta North Texas Cement LLC reports the 23rd-largest volume, placing it in the top 0.7% of its sector. Scale peers outside Texas include St Marys Cement U.S. LLC and Knauf Insulation Inc..
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Martin Marietta North Texas Cement LLC's total reported releases fell from 307.3 thousand lb in 2022 to 231.6 thousand lb in 2023, based on EPA TRI filings.
- Martin Marietta North Texas Cement LLC's land releases fell from 180.6 thousand lb in 2022 to 105.2 thousand lb in 2023, based on EPA TRI filings.
Martin Marietta North Texas Cement LLC Form-R facts
Compare this facility
See how Martin Marietta North Texas Cement LLC stacks up against nearby facilities and the typical reporter.
About the same as the comparison
38% less than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Martin Marietta North Texas Cement LLC releases toxic chemicals into the environment. Total: 1.0M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 60% (144.4K lbs to 231.6K lbs).
Martin Marietta North Texas Cement LLC: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Martin Marietta North Texas Cement LLC year-over-year reported totals (increased by 60% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 144.4K lbs | 8 |
| 2020 | 151.9K lbs | 7 |
| 2021 | 201.1K lbs | 7 |
| 2022 | 307.3K lbs | 7 |
| 2023 | 231.6K lbs | 7 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 8 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 597.6K lbs | - |
| Manganese And Manganese Compounds | 388.6K lbs | - |
| Zinc compounds | 24.3K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 15.8K lbs | - |
| Lead And Lead Compounds | 9.5K lbs | - |
| Nickel And Nickel Compounds | 265 lbs | Carcinogen |
| Mercury And Mercury Compounds | 164 lbs | - |
| Ethylene glycol | 0 lbs | - |
Martin Marietta North Texas Cement LLC in Ellis
Nearest TRI Facilities to Martin Marietta North Texas Cement LLC
Closest other reporters in Texas - including Chaparral Steel Midlothian LP, Mm-Midlothian Railport Ready Mix, Buckley Oil Co - Midlothian Site, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Texas - e.g. St Marys Cement U.S. LLC, Knauf Insulation Inc., Saint Gobain Industrial Ceramic Inc.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Martin Marietta North Texas Cement LLC on cumulative reported pounds (1.0M lbs) and distinct chemical count (8). Release-pound peers include Systech Environmental Corp, Western Sugar Cooperative, 250 - Kershaw Oilseeds. Chemical-count peers include Prepa-South Coast Power Plant, Argos Puerto Rico Corp., US Tsubaki Automotive LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Martin Marietta Materials Inc Facilities
Same-parent TRI sites ranked by reported releases - including Martin Marietta Magnesia Specialties Woodville, Mission Valley Rock, Martin Marietta Arizona LLC - River Ranch Plant.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Manganese And Manganese Compounds, Zinc compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); nearby reporters include Chaparral Steel Midlothian LP. Martin Marietta North Texas Cement LLC stamps HEAVY volume · MIXED pathway · TRACE-CARC carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Martin Marietta North Texas Cement LLC TRI extract (HEAVY · MIXED · TRACE-CARC · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Martin Marietta North Texas Cement LLC totals are self-reported EPCRA §313 estimates for Midlothian, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327310 · Nonmetallic Mineral Product. 18.0% of Ellis TRI pounds in this extract. Nearest ABS peer: Systech Environmental Corp (Δ 174 lbs). Pounds ≠ exposure.
Martin Marietta North Texas Cement LLC stamps HEAVY · MIXED pathway (air releases leads at 58.4%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov