EPA TRI Facility · Electric Utilities
Calaveras Power Station
San Antonio, TX
- Total releases
- 2.0M lbs
- Chemicals reported
- 19
- Carcinogens
- 3
- Primary pathway
- Land Disposal
MIXED Form-R mix
Calaveras Power Station: how the 2.0M lbs splits
2.0M lbs across all reported pathways
- Land Disposal 1.3M lbs 67.4%
- Water Discharges 303.5K lbs 15.3%
- Air Releases 259.3K lbs 13.1%
- Off-site Transfers 83.2K lbs 4.2%
Calaveras Power Station's 2.0M lbs Form-R total is MIXED - land disposal is 67.4% of the bar. Next segment: water discharges at 15.3%. Leading chemical by pounds: Barium And Barium Compounds.
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 CARC-LEAN
Calaveras Power Station is an EPA Toxics Release Inventory reporter in San Antonio, TX, in the electric utilities sector. It reported 329.5K lbs of releases across 14 chemicals in 2023, and 2.0M lbs in total across its 2019-2023 reporting years. That ranks 864 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. Calaveras Power Station is pounds #91 and chemical-count #101 at 2.0M 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: Arconic Inc San Antonio Works; Vp Racing Fuels Inc.; Blue Wing Rm; Lubrizol Corp. Similar-scale Electric Utilities peers outside Texas: Winyah Generating Station; Oak Creek Site; Sigeco a B Brown Generating Station; Dairyland Power Cooperative - Alma Site. Largest disclosed chemicals by pounds: Barium And Barium Compounds; Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Ammonia; Manganese And Manganese Compounds.
Compare Calaveras Power Station with
Nearest reporters in Texas
- Arconic Inc San Antonio Works Elmendorf · 34 lbs
- Vp Racing Fuels Inc. Elmendorf · 162.8K lbs
- Blue Wing Rm San Antonio · 0 lbs
- Lubrizol Corp Elmendorf · 96.4K lbs
Similar-scale Electric Utilities sites elsewhere: Winyah Generating Station (SC) · Oak Creek Site (WI) · Sigeco a B Brown Generating Station (IN)
Calaveras Power Station is a HEAVY · MIXED-pathway Form-R site in San Antonio, TX: 2.0M lbs across 19 chemicals (3 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment land disposal at 67.4%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Winyah Generating Station and Oak Creek Site.
Calaveras Power Station vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2.0M lbs Top 3% higher than 97% 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
Calaveras Power Station inside Bexar's TRI pounds
Among the 513 Electric Utilities facilities in this database, Calaveras Power Station reports the 149th-largest volume (2.0M lbs). This one site accounts for 54.6% of every pound reported in Bexar. Scale peers outside Texas include Winyah Generating Station and Oak Creek Site.
County-dominant here means ≥25% of Bexar's reported pounds (3.6M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Calaveras Power Station's total reported releases fell from 393.9 thousand lb in 2022 to 329.5 thousand lb in 2023, based on EPA TRI filings.
- Calaveras Power Station's off-site transfers fell from 10.4 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Calaveras Power Station's air releases fell from 61.3 thousand lb in 2022 to 30.5 thousand lb in 2023, based on EPA TRI filings.
- Calaveras Power Station's water releases fell from 59.4 thousand lb in 2022 to 53.5 thousand lb in 2023, based on EPA TRI filings.
Calaveras Power Station Form-R facts
Compare this facility
See how Calaveras Power Station stacks up against nearby facilities and the typical reporter.
58681.7× more than the comparison
4.8× 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 Calaveras Power Station releases toxic chemicals into the environment. Total: 2.0M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 13% (290.4K lbs to 329.5K lbs).
Calaveras Power Station: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021
- 2022 0
- 2023 0
What this shows Calaveras Power Station year-over-year reported totals (increased by 13% 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 And Barium Compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 290.4K lbs | 14 |
| 2020 | 373.5K lbs | 14 |
| 2021 | 595.0K lbs | 14 |
| 2022 | 393.9K lbs | 14 |
| 2023 | 329.5K lbs | 14 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 19 chemicals are carcinogens. Sorted by total release volume.
Calaveras Power Station in Bexar
Nearest TRI Facilities to Calaveras Power Station
Closest other reporters in Texas - including Arconic Inc San Antonio Works, Vp Racing Fuels Inc., Blue Wing Rm, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Electric Utilities Facilities
Other Electric Utilities facilities with similar total release volumes (±80%), outside Texas - e.g. Winyah Generating Station, Oak Creek Site, Sigeco a B Brown Generating Station.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Calaveras Power Station on cumulative reported pounds (2.0M lbs) and distinct chemical count (19). Release-pound peers include Lion Oil Co, Equistar Chemicals LP - Lake Charles Polymers, Malibu Boats LLC. Chemical-count peers include Allnex USA Inc. Wallingford Ct Site, Johnson Matthey, Colver Green Energy. 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).
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 And Barium Compounds, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Ammonia, Manganese And Manganese Compounds; nearby reporters include Arconic Inc San Antonio Works. Calaveras Power Station stamps HEAVY volume · MIXED 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 Calaveras Power Station TRI extract (HEAVY · MIXED · CARC-LEAN · lead Barium And Barium Compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Calaveras Power Station totals are self-reported EPCRA §313 estimates for San Antonio, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221112 · Electric Utilities. 54.6% of Bexar TRI pounds in this extract. Nearest ABS peer: Lion Oil Co (Δ 801 lbs). Pounds ≠ exposure.
Calaveras Power Station stamps HEAVY · MIXED pathway (land disposal leads at 67.4%). 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