EPA TRI Facility · Electric Utilities
W.a. Parish Electric Generating Station
Thompsons, TX · Parent: Nrg Energy Inc
- Total releases
- 9.4M lbs
- Chemicals reported
- 19
- Carcinogens
- 5
- Primary pathway
- Land Disposal
MIXED Form-R mix
W.a. Parish Electric Generating Station: how the 9.4M lbs splits
9.4M lbs across all reported pathways
- Land Disposal 5.9M lbs 63.2%
- Air Releases 3.4M lbs 36.7%
- Water Discharges 9.3K lbs 0.1%
W.a. Parish Electric Generating Station's 9.4M lbs Form-R total is MIXED - land disposal is 63.2% of the bar. Next segment: air releases at 36.7%. 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.
HEAVY volume MIXED pathway CARC-LEAN
W.a. Parish Electric Generating Station is an EPA Toxics Release Inventory reporter in Thompsons, TX, in the electric utilities sector. It reported 1.8M lbs of releases across 16 chemicals in 2023, and 9.4M lbs in total across its 2019-2023 reporting years. That ranks 231 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. W.a. Parish Electric Generating Station is pounds #21 and chemical-count #99 at 9.4M 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: Richmond Plant; Championx-Sugar Land; Allied Plant 1 - Rosenberg; Heidelberg Materials - Arcola Rmc. Similar-scale Electric Utilities peers outside Texas: Pleasants Power Station; Conemaugh Generating Station; Jeffrey Energy Center; Public Service Co of Colorado Comanche Station. Other Nrg Energy Inc sites in this extract: Limestone Electric Generating Station; Homer City Generation LP; Waukegan Generating Station; Powerton Generating Station. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Hydrogen fluoride; Ammonia; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
Compare W.a. Parish Electric Generating Station with
Nearest reporters in Texas
- Richmond Plant Richmond · 1 lbs
- Championx-Sugar Land Sugar Land · 2.2M lbs
- Allied Plant 1 - Rosenberg Rosenberg · 18 lbs
- Heidelberg Materials - Arcola Rmc Rosharon · 0 lbs
Similar-scale Electric Utilities sites elsewhere: Pleasants Power Station (WV) · Conemaugh Generating Station (PA) · Jeffrey Energy Center (KS)
W.a. Parish Electric Generating Station is a HEAVY · MIXED-pathway Form-R site in Thompsons, TX: 9.4M lbs across 19 chemicals (5 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment land disposal at 63.2%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Pleasants Power Station and Conemaugh Generating Station.
W.a. Parish Electric Generating Station vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
9.4M lbs Top 1% higher than 99% 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
W.a. Parish Electric Generating Station inside Fort Bend's TRI pounds
Among the 513 Electric Utilities facilities in this database, W.a. Parish Electric Generating Station reports the 31st-largest volume, placing it in the top 6% of its sector. This one site accounts for 65.5% of every pound reported in Fort Bend. Scale peers outside Texas include Pleasants Power Station and Conemaugh Generating Station.
County-dominant here means ≥25% of Fort Bend's reported pounds (14.3M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- W.a. Parish Electric Generating Station's total reported releases fell from 1.9 million lb in 2022 to 1.8 million lb in 2023, based on EPA TRI filings.
- W.a. Parish Electric Generating Station's air releases rose from 719.8 thousand lb in 2022 to 880.0 thousand lb in 2023, based on EPA TRI filings.
- W.a. Parish Electric Generating Station's land releases fell from 1.1 million lb in 2022 to 966.8 thousand lb in 2023, based on EPA TRI filings.
- W.a. Parish Electric Generating Station's water releases fell from 1.6 thousand lb in 2022 to 1.5 thousand lb in 2023, based on EPA TRI filings.
W.a. Parish Electric Generating Station Form-R facts
Compare this facility
See how W.a. Parish Electric Generating Station stacks up against nearby facilities and the typical reporter.
14495934.0× more than the comparison
19.0× 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 W.a. Parish Electric Generating Station releases toxic chemicals into the environment. Total: 9.4M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 4% (1.9M lbs to 1.8M lbs).
W.a. Parish Electric Generating Station: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows W.a. Parish Electric Generating Station year-over-year reported totals (decreased by 4% 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 | 1.9M lbs | 17 |
| 2020 | 1.4M lbs | 15 |
| 2021 | 2.4M lbs | 18 |
| 2022 | 1.9M lbs | 16 |
| 2023 | 1.8M lbs | 16 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 5 of 19 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 4.7M lbs | - |
| Hydrogen fluoride | 1.7M lbs | - |
| Ammonia | 989.1K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 559.1K lbs | - |
| Manganese compounds | 495.4K lbs | - |
| Vanadium compounds | 211.5K lbs | - |
| Copper compounds | 166.5K lbs | - |
| Zinc compounds | 159.2K lbs | - |
| n-Hexane | 99.2K lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 88.5K lbs | - |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 79.9K lbs | - |
| Nickel compounds | 65.9K lbs | Carcinogen |
| Lead compounds | 48.7K lbs | - |
| Arsenic compounds | 30.5K lbs | Carcinogen |
| Cobalt compounds | 12.2K lbs | Carcinogen |
| Mercury And Mercury Compounds | 919 lbs | - |
| Mercury compounds | 658 lbs | - |
| Hexachlorobenzene | 21 lbs | Carcinogen |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
W.a. Parish Electric Generating Station in Fort Bend
Nearest TRI Facilities to W.a. Parish Electric Generating Station
Closest other reporters in Texas - including Richmond Plant, Championx-Sugar Land, Allied Plant 1 - Rosenberg, 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. Pleasants Power Station, Conemaugh Generating Station, Jeffrey Energy Center.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest W.a. Parish Electric Generating Station on cumulative reported pounds (9.4M lbs) and distinct chemical count (19). Release-pound peers include Clearwater Paper - Augusta Mill, McCain Foods USA Inc, Chevron Products Co. Div of Chevron USA Inc.. 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).
Other Nrg Energy Inc Facilities
Same-parent TRI sites ranked by reported releases - including Limestone Electric Generating Station, Homer City Generation LP, Waukegan Generating Station.
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)), Hydrogen fluoride, Ammonia, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); nearby reporters include Richmond Plant. W.a. Parish Electric Generating 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 W.a. Parish Electric Generating Station TRI extract (HEAVY · MIXED · 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.
W.a. Parish Electric Generating Station totals are self-reported EPCRA §313 estimates for Thompsons, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221122 · Electric Utilities. 65.5% of Fort Bend TRI pounds in this extract. Nearest ABS peer: Basf Corp - Freeport Site (Δ 2.6K lbs). Pounds ≠ exposure.
W.a. Parish Electric Generating Station stamps HEAVY · MIXED pathway (land disposal leads at 63.2%). 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