EPA TRI Facility · Nonmetallic Mineral Product
Capitol Aggregates Inc.
San Antonio, TX · Parent: Zachry Construction & Materials Inc
- Total releases
- 40.6K lbs
- Chemicals reported
- 9
- Carcinogens
- 3
- Primary pathway
- Air Releases
AIR Form-R mix
Capitol Aggregates Inc.: how the 40.6K lbs splits
40.6K lbs across all reported pathways
- Air Releases 40.6K lbs 100.0%
- Land Disposal 0 lbs <0.1%
Capitol Aggregates Inc.'s 40.6K lbs Form-R total is AIR - air releases is 100.0% of the bar. Next segment: land disposal at <0.1%. Leading chemical by pounds: Acetaldehyde.
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-HEAVY
Capitol Aggregates Inc. is an EPA Toxics Release Inventory reporter in San Antonio, TX, in the nonmetallic mineral product sector. It reported 2.2K lbs of releases across 8 chemicals in 2023, and 40.6K lbs in total across its 2019-2023 reporting years. That ranks 6,623 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. Capitol Aggregates Inc. is pounds #649 and chemical-count #330 at 40.6K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Carbonfree Chemicals Spe I Holdings LLC; Clarios Llc. San Antonio Dc; Package Design & Mfg; Allied Aviation Fueling Co of Texas Inc.. Similar-scale Nonmetallic Mineral Product peers outside Texas: Nsg Glass N.a. Inc; General Shale Brick Inc. - Plant 51; Abrasive Technology; Europtec USA LLC. Largest disclosed chemicals by pounds: Acetaldehyde; Ammonia; Mercury And Mercury Compounds; Lead And Lead Compounds.
Compare Capitol Aggregates Inc. with
Nearest reporters in Texas
- Carbonfree Chemicals Spe I Holdings LLC San Antonio · 803 lbs
- Clarios Llc. San Antonio Dc San Antonio · 32.2K lbs
- Package Design & Mfg San Antonio · 0 lbs
- Allied Aviation Fueling Co of Texas Inc. San Antonio · 59 lbs
Similar-scale Nonmetallic Mineral Product sites elsewhere: Nsg Glass N.a. Inc (OH) · General Shale Brick Inc. - Plant 51 (NC) · Abrasive Technology (OH)
Capitol Aggregates Inc. stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 9 chemicals · 3 carcinogen-classified. Cumulative Form-R extract: 40.6K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Nsg Glass N.a. Inc and General Shale Brick Inc. - Plant 51.
Capitol Aggregates Inc. vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
41K lbs Top 25% higher than 75% 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
Capitol Aggregates Inc.: Acetaldehyde-led volume
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Capitol Aggregates Inc. reports the 243rd-largest volume, placing it in the top 7.4% of its sector. Its reported volume is concentrated rather than spread: Acetaldehyde alone is 71.0% of the total. Carcinogen-classified chemicals make up 71.0% of the reported pounds, not just of the chemical count. Scale peers outside Texas include Nsg Glass N.a. Inc and General Shale Brick Inc. - Plant 51.
Concentrated means ≥60% of Capitol Aggregates Inc.'s pounds in one chemical - here Acetaldehyde at 71.0%. Not a toxicity score.
Capitol Aggregates Inc. Form-R facts
Compare this facility
See how Capitol Aggregates Inc. stacks up against nearby facilities and the typical reporter.
50.5× more than the comparison
4.5× 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 Capitol Aggregates Inc. releases toxic chemicals into the environment. Total: 40.6K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 93% (31.1K lbs to 2.2K lbs).
Capitol Aggregates Inc.: 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 Capitol Aggregates Inc. year-over-year reported totals (decreased by 93% 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: Acetaldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 31.1K lbs | 9 |
| 2020 | 2.3K lbs | 8 |
| 2021 | 2.8K lbs | 8 |
| 2022 | 2.2K lbs | 8 |
| 2023 | 2.2K lbs | 8 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 9 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Acetaldehyde | 28.8K lbs | Carcinogen |
| Ammonia | 11.6K lbs | - |
| Mercury And Mercury Compounds | 123 lbs | - |
| Lead And Lead Compounds | 68 lbs | - |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0 lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 0 lbs | - |
| Cobalt compounds | 0 lbs | Carcinogen |
| Manganese compounds | 0 lbs | - |
| Nickel compounds | 0 lbs | Carcinogen |
Capitol Aggregates Inc. · AIR-pathway site
Nearest TRI Facilities to Capitol Aggregates Inc.
Closest other reporters in Texas - including Carbonfree Chemicals Spe I Holdings LLC, Clarios Llc. San Antonio Dc, Package Design & Mfg, 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. Nsg Glass N.a. Inc, General Shale Brick Inc. - Plant 51, Abrasive Technology.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Capitol Aggregates Inc. on cumulative reported pounds (40.6K lbs) and distinct chemical count (9). Release-pound peers include Crane Chempharma & Energy Corp., Merck Sharp & Dohme LLC, E & J Gallo Winery. Chemical-count peers include Viatris Pharmaceuticals LLC, Prepa - San Juan Steam Plant, Solutia Inc. 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).
- Viatris Pharmaceuticals LLC Barceloneta, PR · Chemicals 9 chemicals
- Prepa - San Juan Steam Plant Puerto Nuevo, PR · Electric Utilities 9 chemicals
- Solutia Inc Springfield, MA · Plastics and Rubber 9 chemicals
- O'Connell Oil Co Merrill Road Facility Pittsfield, MA · Petroleum Bulk Terminals 9 chemicals
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 Acetaldehyde, Ammonia, Mercury And Mercury Compounds, Lead And Lead Compounds; nearby reporters include Carbonfree Chemicals Spe I Holdings LLC. Capitol Aggregates Inc. stamps LIGHT volume · AIR pathway · CARC-HEAVY 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 Capitol Aggregates Inc. TRI extract (LIGHT · AIR · CARC-HEAVY · lead Acetaldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Capitol Aggregates Inc. totals are self-reported EPCRA §313 estimates for San Antonio, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327310 · Nonmetallic Mineral Product. 1.1% of Bexar TRI pounds in this extract. Nearest ABS peer: Crane Chempharma & Energy Corp. (Δ 0 lbs). Pounds ≠ exposure.
Capitol Aggregates Inc. stamps LIGHT volume · AIR pathway · CARC-HEAVY · lead Acetaldehyde. 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