EPA TRI Facility · Nonmetallic Mineral Product
Mountain Cement Co
Laramie, WY · Parent: Eagle Materials Inc
- Total releases
- 4.5K lbs
- Chemicals reported
- 12
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Mountain Cement Co: how the 4.5K lbs splits
4.5K lbs across all reported pathways
- Air Releases 4.5K lbs 100.0%
Mountain Cement Co's 4.5K lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
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.
LIGHT volume AIR pathway CARC-LEAN
Mountain Cement Co is an EPA Toxics Release Inventory reporter in Laramie, WY, in the nonmetallic mineral product sector. It reported 835 lbs of releases across 6 chemicals in 2023, and 4.5K lbs in total across its 2019-2023 reporting years. That ranks 11,389 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Wyoming's 70 reporting TRI sites, pounds #1 is not chemical-count #1. Mountain Cement Co is pounds #41 and chemical-count #15 at 4.5K lbs. Dyno Nobel Inc-Cheyenne Plant leads reported pounds (27.1M lbs) at 8 chemicals (chemical-count #19). Hf Sinclair Parco Refining LLC leads chemical count at 36 chemicals (1.5M lbs, pounds #10). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Pete Lien & Sons Inc. - Jonathon Lime Plant; Dyno Nobel Inc-Cheyenne Plant; US Dod Usaf Fe Warren Afb (part); Brenntag Pacific Inc.. Similar-scale Nonmetallic Mineral Product peers outside Wyoming: Northrup Brockport; General Shale Brick Inc. - Plant 67; Summitville Tiles Inc Minerva Plant; Concrete Supply. Other Eagle Materials Inc sites in this extract: Fairborn Cement Co; Republic Paperboard Co.; Central Plains Cement Co - Sugar Creek Plant; Central Plains Cement Co. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Manganese And Manganese Compounds; Barium And Barium Compounds; Chromium compounds (except for chromite ore mined in the Transvaal Region).
Mountain Cement Co stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 12 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 4.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Northrup Brockport and General Shale Brick Inc. - Plant 67.
Mountain Cement Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
4.5K lbs Top 44% higher than 56% 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
Mountain Cement Co in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Mountain Cement Co reports the 455th-largest volume, placing it in the top 13.9% of its sector. Scale peers outside Wyoming include Northrup Brockport and General Shale Brick Inc. - Plant 67.
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
- Mountain Cement Co's total reported releases rose from 810 lb in 2022 to 835 lb in 2023, based on EPA TRI filings.
- Mountain Cement Co's air releases rose from 810 lb in 2022 to 835 lb in 2023, based on EPA TRI filings.
Mountain Cement Co Form-R facts
Compare this facility
See how Mountain Cement Co stacks up against nearby facilities and the typical reporter.
96% less than the comparison
2.0× more 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 Mountain Cement Co releases toxic chemicals into the environment. Total: 4.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 21% (689 lbs to 835 lbs).
Mountain Cement Co: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Mountain Cement Co year-over-year reported totals (increased by 21% 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: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 689 lbs | 6 |
| 2020 | 726 lbs | 6 |
| 2021 | 1.4K lbs | 7 |
| 2022 | 810 lbs | 6 |
| 2023 | 835 lbs | 6 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 12 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1.9K lbs | - |
| Manganese And Manganese Compounds | 570 lbs | - |
| Barium And Barium Compounds | 559 lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 471 lbs | - |
| Lead compounds | 206 lbs | - |
| Nickel compounds | 198 lbs | Carcinogen |
| Vanadium compounds | 153 lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 129 lbs | - |
| Mercury compounds | 124 lbs | - |
| Nickel And Nickel Compounds | 68 lbs | Carcinogen |
| Lead And Lead Compounds | 55 lbs | - |
| Mercury And Mercury Compounds | 23 lbs | - |
Mountain Cement Co · AIR-pathway site
Nearest TRI Facilities to Mountain Cement Co
Closest other reporters in Wyoming - including Pete Lien & Sons Inc. - Jonathon Lime Plant, Dyno Nobel Inc-Cheyenne Plant, US Dod Usaf Fe Warren Afb (part), ordered by distance.
Showing 8 of 69 other reporting facilities in Wyoming.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Wyoming - e.g. Northrup Brockport, General Shale Brick Inc. - Plant 67, Summitville Tiles Inc Minerva Plant.
Compare beyond Wyoming
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Mountain Cement Co on cumulative reported pounds (4.5K lbs) and distinct chemical count (12). Release-pound peers include Delong's Inc, Northrup Brockport, Fabarc Steel Supply Inc. Chemical-count peers include Fmc Agricultural Caribe Industries Ltd, Peerless Oil & Chemicals Inc., Prepa - Aguirre Power Generati on Complex. 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).
- Fmc Agricultural Caribe Industries Ltd Manati, PR · Chemicals 12 chemicals
- Peerless Oil & Chemicals Inc. Penuelas, PR · Petroleum Bulk Terminals 12 chemicals
- Prepa - Aguirre Power Generati on Complex Aguirre, PR · Electric Utilities 12 chemicals
- Citgo Petroleum Corp Braintree, MA · Petroleum Bulk Terminals 12 chemicals
Other Eagle Materials Inc Facilities
Same-parent TRI sites ranked by reported releases - including Fairborn Cement Co, Republic Paperboard Co., Central Plains Cement Co - Sugar Creek 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 Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Manganese And Manganese Compounds, Barium And Barium Compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region); nearby reporters include Pete Lien & Sons Inc. - Jonathon Lime Plant. Mountain Cement Co stamps LIGHT volume · AIR pathway · CARC-LEAN 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 Mountain Cement Co TRI extract (LIGHT · AIR · CARC-LEAN · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7))) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Mountain Cement Co totals are self-reported EPCRA §313 estimates for Laramie, WY, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327310 · Nonmetallic Mineral Product. 3.8% of Albany TRI pounds in this extract. Nearest ABS peer: Delong's Inc (Δ 1 lbs). Pounds ≠ exposure.
Mountain Cement Co stamps LIGHT volume · AIR pathway · CARC-LEAN · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7)). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. 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