EPA TRI Facility · Nonmetallic Mineral Product
Heidelberg Materials US Cement LLC
Mason City, IA · Parent: Heidelberg Materials US Inc
- Total releases
- 46.4K lbs
- Chemicals reported
- 21
- Carcinogens
- 6
- Primary pathway
- Air Releases
AIR Form-R mix
Heidelberg Materials US Cement LLC: how the 46.4K lbs splits
46.4K lbs across all reported pathways
- Air Releases 42.1K lbs 90.7%
- Land Disposal 4.3K lbs 9.3%
Heidelberg Materials US Cement LLC's 46.4K lbs Form-R total is AIR - air releases is 90.7% of the bar. Next segment: land disposal at 9.3%. Leading chemical by pounds: Ammonia.
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
Heidelberg Materials US Cement LLC is an EPA Toxics Release Inventory reporter in Mason City, IA, in the nonmetallic mineral product sector. It reported 18.1K lbs of releases across 10 chemicals in 2023, and 46.4K lbs in total across its 2019-2023 reporting years. That ranks 6,284 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Iowa's 460 reporting TRI sites, pounds #1 is not chemical-count #1. Heidelberg Materials US Cement LLC is pounds #178 and chemical-count #6 at 46.4K lbs. Climax Molybdenum Co leads reported pounds (16.4M lbs) at 5 chemicals (chemical-count #117). Helena Industries LLC leads chemical count at 32 chemicals (9.4K lbs, pounds #247). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Kraft Heinz Foods Co; Curries Div of Aadg Inc.; Masonite Corp - 12TH St Facility; Minnesota Rubber & Plastics. Similar-scale Nonmetallic Mineral Product peers outside Iowa: Ardagh Glass Inc; Ardagh Glass Inc; National Cement Co. of Alabama Inc.; Triangle Brick-Clay County Tx. Other Heidelberg Materials US Inc sites in this extract: Heidelberg Materials US Cement LLC; Heidelberg Materials US Cement LLC - Evansville; Heidelberg Materials US Cement LLC - Glens Falls Plant; Heidelberg Materials US Cement LLC. Largest disclosed chemicals by pounds: Ammonia; Aluminum (fume or dust); Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Lead And Lead Compounds.
Heidelberg Materials US Cement LLC stamps LIGHT volume with a dominant AIR pathway (90.7% air releases) across 21 chemicals · 6 carcinogen-classified. Cumulative Form-R extract: 46.4K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Ardagh Glass Inc and Ardagh Glass Inc.
Heidelberg Materials US Cement LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
46K lbs Top 24% higher than 76% 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
Heidelberg Materials US Cement LLC: Ammonia-led volume
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Heidelberg Materials US Cement LLC reports the 232nd-largest volume, placing it in the top 7.1% of its sector. Its reported volume is concentrated rather than spread: Ammonia alone is 61.8% of the total. Scale peers outside Iowa include Ardagh Glass Inc and Ardagh Glass Inc.
Concentrated means ≥60% of Heidelberg Materials US Cement LLC's pounds in one chemical - here Ammonia at 61.8%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Heidelberg Materials US Cement LLC's total reported releases rose from 7.2 thousand lb in 2022 to 18.1 thousand lb in 2023, based on EPA TRI filings.
- Heidelberg Materials US Cement LLC's land releases rose from 3 lb in 2022 to 3.1 thousand lb in 2023, based on EPA TRI filings.
- Heidelberg Materials US Cement LLC's air releases rose from 7.2 thousand lb in 2022 to 15.0 thousand lb in 2023, based on EPA TRI filings.
- Heidelberg Materials US Cement LLC's chemicals reported rose from 6 in 2022 to 10 in 2023, based on EPA TRI filings.
Heidelberg Materials US Cement LLC Form-R facts
Compare this facility
See how Heidelberg Materials US Cement LLC stacks up against nearby facilities and the typical reporter.
74% less than the comparison
7.0× 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 Heidelberg Materials US Cement LLC releases toxic chemicals into the environment. Total: 46.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 431% (3.4K lbs to 18.1K lbs).
Heidelberg Materials US Cement LLC: 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 Heidelberg Materials US Cement LLC year-over-year reported totals (increased by 431% 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: Ammonia.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 3.4K lbs | 7 |
| 2020 | 10.3K lbs | 8 |
| 2021 | 7.4K lbs | 5 |
| 2022 | 7.2K lbs | 6 |
| 2023 | 18.1K lbs | 10 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 6 of 21 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 28.7K lbs | - |
| Aluminum (fume or dust) | 8.4K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4.6K lbs | - |
| Lead And Lead Compounds | 1.6K lbs | - |
| Copper compounds | 1.2K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 712 lbs | - |
| Nickel And Nickel Compounds | 392 lbs | Carcinogen |
| Arsenic And Arsenic Compounds | 307 lbs | Carcinogen |
| Cadmium compounds | 178 lbs | Carcinogen |
| Manganese And Manganese Compounds | 67 lbs | - |
| Manganese | 65 lbs | - |
| Manganese compounds | 64 lbs | - |
| Chromium | 28 lbs | - |
| Lead compounds | 22 lbs | - |
| Mercury compounds | 19 lbs | - |
| Lead | 19 lbs | Carcinogen |
| Nickel compounds | 16 lbs | Carcinogen |
| Mercury | 15 lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 15 lbs | - |
| Mercury And Mercury Compounds | 9 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Heidelberg Materials US Cement LLC · AIR-pathway site
Nearest TRI Facilities to Heidelberg Materials US Cement LLC
Closest other reporters in Iowa - including Kraft Heinz Foods Co, Curries Div of Aadg Inc., Masonite Corp - 12TH St Facility, ordered by distance.
Showing 8 of 459 other reporting facilities in Iowa.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Iowa - e.g. Ardagh Glass Inc, Ardagh Glass Inc, National Cement Co. of Alabama Inc..
Compare beyond Iowa
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Heidelberg Materials US Cement LLC on cumulative reported pounds (46.4K lbs) and distinct chemical count (21). Release-pound peers include Mystic Station, Primary Packaging Inc (0679000276), Parker Hannifin Corp. Chemical-count peers include Clean Earth of North Jersey Inc, Cleveland-Cliffs Monessen Coke LLC, Uss Mon Valley Works - Edgar Thomson Plant. 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.
- Mystic Station Charlestown, MA · Electric Utilities 46.4K lbs reported
- Primary Packaging Inc (0679000276) Bolivar, OH · Plastics and Rubber 46.4K lbs reported
- Parker Hannifin Corp Huntsville, AL · Fabricated Metals 46.4K lbs reported
- Molded Plastic Industries Inc Holt, MI · Transportation Equipment 46.4K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Heidelberg Materials US Inc Facilities
Same-parent TRI sites ranked by reported releases - including Heidelberg Materials US Cement LLC, Heidelberg Materials US Cement LLC - Evansville, Heidelberg Materials US Cement LLC - Glens Falls 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 Ammonia, Aluminum (fume or dust), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Lead And Lead Compounds; nearby reporters include Kraft Heinz Foods Co. Heidelberg Materials US Cement LLC 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 Heidelberg Materials US Cement LLC TRI extract (LIGHT · AIR · CARC-LEAN · lead Ammonia) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Heidelberg Materials US Cement LLC totals are self-reported EPCRA §313 estimates for Mason City, IA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327310 · Nonmetallic Mineral Product. 4.8% of Cerro Gordo TRI pounds in this extract. Nearest ABS peer: Mystic Station (Δ 2 lbs). Pounds ≠ exposure.
Heidelberg Materials US Cement LLC stamps LIGHT volume · AIR pathway · CARC-LEAN · lead Ammonia. 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