EPA TRI Facility · Electric Utilities
Hawaiian Electric Co Inc Waiau Generating Station
Pearl City, HI · Parent: Hawaiian Electric Industries Inc
- Total releases
- 1.2M lbs
- Chemicals reported
- 8
- Carcinogens
- 3
- Primary pathway
- Air Releases
AIR Form-R mix
Hawaiian Electric Co Inc Waiau Generating Station: how the 1.2M lbs splits
1.2M lbs across all reported pathways
- Air Releases 1.2M lbs 99.9%
- Off-site Transfers 1.6K lbs 0.1%
- Water Discharges 9 lbs <0.1%
- Land Disposal 0 lbs <0.1%
Hawaiian Electric Co Inc Waiau Generating Station's 1.2M lbs Form-R total is AIR - air releases is 99.9% of the bar. Next segment: off-site transfers at 0.1%. Leading chemical by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
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 AIR pathway TRACE-CARC
Hawaiian Electric Co Inc Waiau Generating Station is an EPA Toxics Release Inventory reporter in Pearl City, HI, in the electric utilities sector. It reported 328.6K lbs of releases across 7 chemicals in 2023, and 1.2M lbs in total across its 2019-2023 reporting years. That ranks 1,150 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Hawaii's 36 reporting TRI sites, pounds #1 is not chemical-count #1. Hawaiian Electric Co Inc Waiau Generating Station is pounds #3 and chemical-count #8 at 1.2M lbs. Hawaiian Electric Co Inc Kahe Generating Station leads reported pounds (3.2M lbs) at 11 chemicals (chemical-count #5). Par Hawaii Refining LLC leads chemical count at 27 chemicals (841.7K lbs, pounds #5). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Joint Base Pearl Harbor-Hickam Hawaii; Hffc Airport Fuel Farm; US Marine Corps Base Hawaii Puuloa Training Facility; Hffc Sand Island Fuel Terminal. Similar-scale Electric Utilities peers outside Hawaii: City of Fremont Department of Utilities Lon D Wright Power; Kentucky Utilities Co. - E. W. Brown Station; U.S. Tva Paradise Combined Cycle; Chesterfield Power Station. Other Hawaiian Electric Industries Inc sites in this extract: Hawaiian Electric Co Inc Kahe Generating Station; Maui Electric Co Ltd Kahului Generating Station; Hill Generating Station; Maui Electric Co Ltd Maalaea Generating Station. Largest disclosed chemicals by pounds: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Ammonia; Lead And Lead Compounds; Lead compounds.
Hawaiian Electric Co Inc Waiau Generating Station stamps HEAVY volume with a dominant AIR pathway (99.9% air releases) across 8 chemicals · 3 carcinogen-classified. Cumulative Form-R extract: 1.2M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include City of Fremont Department of Utilities Lon D Wright Power and Kentucky Utilities Co. - E. W. Brown Station.
Hawaiian Electric Co Inc Waiau Generating Station vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
1.2M lbs Top 4% higher than 96% 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
Hawaiian Electric Co Inc Waiau Generating Station: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)-led volume
Among the 513 Electric Utilities facilities in this database, Hawaiian Electric Co Inc Waiau Generating Station reports the 177th-largest volume (1.2M lbs). Its reported volume is concentrated rather than spread: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) alone is 76.1% of the total. Scale peers outside Hawaii include City of Fremont Department of Utilities Lon D Wright Power and Kentucky Utilities Co. - E. W. Brown Station.
Concentrated means ≥60% of Hawaiian Electric Co Inc Waiau Generating Station's pounds in one chemical - here Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at 76.1%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Hawaiian Electric Co Inc Waiau Generating Station's total reported releases rose from 237.0 thousand lb in 2022 to 328.6 thousand lb in 2023, based on EPA TRI filings.
- Hawaiian Electric Co Inc Waiau Generating Station's off-site transfers rose from 299 lb in 2022 to 428 lb in 2023, based on EPA TRI filings.
- Hawaiian Electric Co Inc Waiau Generating Station's air releases rose from 236.7 thousand lb in 2022 to 328.2 thousand lb in 2023, based on EPA TRI filings.
- Hawaiian Electric Co Inc Waiau Generating Station's chemicals reported rose from 6 in 2022 to 7 in 2023, based on EPA TRI filings.
Hawaiian Electric Co Inc Waiau Generating Station Form-R facts
Compare this facility
See how Hawaiian Electric Co Inc Waiau Generating Station stacks up against nearby facilities and the typical reporter.
50% less than the comparison
About the same as 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 Hawaiian Electric Co Inc Waiau Generating Station releases toxic chemicals into the environment. Total: 1.2M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 26% (260.5K lbs to 328.6K lbs).
Hawaiian Electric Co Inc Waiau Generating Station: annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Hawaiian Electric Co Inc Waiau Generating Station year-over-year reported totals (increased by 26% 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: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 260.5K lbs | 7 |
| 2020 | 184.9K lbs | 6 |
| 2021 | 223.8K lbs | 6 |
| 2022 | 237.0K lbs | 6 |
| 2023 | 328.6K lbs | 7 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 8 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 940.0K lbs | - |
| Ammonia | 292.6K lbs | - |
| Lead And Lead Compounds | 901 lbs | - |
| Lead compounds | 801 lbs | - |
| Polycyclic aromatic compounds | 406 lbs | Carcinogen |
| Naphthalene | 141 lbs | Carcinogen |
| Benzo[g,h,i]perylene | 5 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Hawaiian Electric Co Inc Waiau Generating Station · AIR-pathway site
Nearest TRI Facilities to Hawaiian Electric Co Inc Waiau Generating Station
Closest other reporters in Hawaii - including Joint Base Pearl Harbor-Hickam Hawaii, Hffc Airport Fuel Farm, US Marine Corps Base Hawaii Puuloa Training Facility, ordered by distance.
Showing 8 of 35 other reporting facilities in Hawaii.
Similar Electric Utilities Facilities
Other Electric Utilities facilities with similar total release volumes (±80%), outside Hawaii - e.g. City of Fremont Department of Utilities Lon D Wright Power, Kentucky Utilities Co. - E. W. Brown Station, U.S. Tva Paradise Combined Cycle.
Compare beyond Hawaii
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hawaiian Electric Co Inc Waiau Generating Station on cumulative reported pounds (1.2M lbs) and distinct chemical count (8). Release-pound peers include Saputo Cheese USA Inc., Mississippi Lime Co Ste Genevieve, American Tinning & Galvanizing Co.. Chemical-count peers include Prepa-South Coast Power Plant, Argos Puerto Rico Corp., US Tsubaki Automotive LLC. 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.
- Saputo Cheese USA Inc. Tulare, CA · Food 1.2M lbs reported
- Mississippi Lime Co Ste Genevieve Sainte Genevieve, MO · Nonmetallic Mineral Product 1.2M lbs reported
- American Tinning & Galvanizing Co. Erie, PA · Fabricated Metals 1.2M lbs reported
- US Ecology Michigan Inc. Detroit, MI · Hazardous Waste 1.2M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Hawaiian Electric Industries Inc Facilities
Same-parent TRI sites ranked by reported releases - including Hawaiian Electric Co Inc Kahe Generating Station, Maui Electric Co Ltd Kahului Generating Station, Hill 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 Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Lead And Lead Compounds, Lead compounds; nearby reporters include Joint Base Pearl Harbor-Hickam Hawaii. Hawaiian Electric Co Inc Waiau Generating Station stamps HEAVY volume · AIR pathway · TRACE-CARC 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 Hawaiian Electric Co Inc Waiau Generating Station TRI extract (HEAVY · AIR · TRACE-CARC · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Hawaiian Electric Co Inc Waiau Generating Station totals are self-reported EPCRA §313 estimates for Pearl City, HI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221112 · Electric Utilities. 11.8% of Honolulu TRI pounds in this extract. Nearest ABS peer: Saputo Cheese USA Inc. (Δ 347 lbs). Pounds ≠ exposure.
Hawaiian Electric Co Inc Waiau Generating Station stamps HEAVY volume · AIR pathway · TRACE-CARC · lead Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). 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