EPA TRI Facility · Electric Utilities
Maui Electric Co Ltd Maalaea Generating Station
Kihei, HI · Parent: Hawaiian Electric Industries Inc
- Total releases
- 435.5K lbs
- Chemicals reported
- 7
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Maui Electric Co Ltd Maalaea Generating Station: how the 435.5K lbs splits
435.5K lbs across all reported pathways
- Air Releases 435.4K lbs 100.0%
- Land Disposal 18 lbs <0.1%
- Off-site Transfers 14 lbs <0.1%
Maui Electric Co Ltd Maalaea Generating Station's 435.5K 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: 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.
MID volume AIR pathway TRACE-CARC
Maui Electric Co Ltd Maalaea Generating Station is an EPA Toxics Release Inventory reporter in Kihei, HI, in the electric utilities sector. It reported 83.2K lbs of releases across 6 chemicals in 2023, and 435.5K lbs in total across its 2019-2023 reporting years. That ranks 2,112 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. Maui Electric Co Ltd Maalaea Generating Station is pounds #10 and chemical-count #12 at 435.5K 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 fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Maui Electric Co Ltd Kahului Generating Station; Maui Electric Co Ltd Miki Basin Generating Station; Maui Electric Co Ltd Palaau Generating Station; Hawaii Electric Light Co Inc Keahole Generating Station. Similar-scale Electric Utilities peers outside Hawaii: Gorgas Steam Plant; Prepa - San Juan Steam Plant; U.S. Tva Magnolia Combined Cycle Plant; Pge Beaver Plant & Port Westward Plant. Other Hawaiian Electric Industries Inc sites in this extract: Hawaiian Electric Co Inc Kahe Generating Station; Hawaiian Electric Co Inc Waiau Generating Station; Maui Electric Co Ltd Kahului Generating Station; Hill 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; Naphthalene; Polycyclic aromatic compounds.
Maui Electric Co Ltd Maalaea Generating Station stamps MID volume with a dominant AIR pathway (100.0% air releases) across 7 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 435.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Gorgas Steam Plant and Prepa - San Juan Steam Plant.
Maui Electric Co Ltd Maalaea Generating Station vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
435K lbs Top 8% higher than 92% 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
Maui Electric Co Ltd Maalaea Generating Station inside Maui's TRI pounds
Among the 513 Electric Utilities facilities in this database, Maui Electric Co Ltd Maalaea Generating Station reports the 249th-largest volume (435.5K lbs). This one site accounts for 36.1% of every pound reported in Maui. Scale peers outside Hawaii include Gorgas Steam Plant and Prepa - San Juan Steam Plant.
County-dominant here means ≥25% of Maui's reported pounds (1.2M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Maui Electric Co Ltd Maalaea Generating Station's total reported releases fell from 93.4 thousand lb in 2022 to 83.2 thousand lb in 2023, based on EPA TRI filings.
- Maui Electric Co Ltd Maalaea Generating Station's air releases fell from 93.4 thousand lb in 2022 to 83.2 thousand lb in 2023, based on EPA TRI filings.
Maui Electric Co Ltd Maalaea Generating Station Form-R facts
Compare this facility
See how Maui Electric Co Ltd Maalaea Generating Station stacks up against nearby facilities and the typical reporter.
43% less than the comparison
17% 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 Maui Electric Co Ltd Maalaea Generating Station releases toxic chemicals into the environment. Total: 435.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 14% (96.7K lbs to 83.2K lbs).
Maui Electric Co Ltd Maalaea Generating Station: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Maui Electric Co Ltd Maalaea Generating Station year-over-year reported totals (decreased by 14% 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 | 96.7K lbs | 6 |
| 2020 | 80.1K lbs | 6 |
| 2021 | 82.0K lbs | 6 |
| 2022 | 93.4K lbs | 6 |
| 2023 | 83.2K lbs | 6 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 7 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) | 261.0K lbs | - |
| Ammonia | 171.4K lbs | - |
| Naphthalene | 1.8K lbs | Carcinogen |
| Polycyclic aromatic compounds | 897 lbs | Carcinogen |
| Lead compounds | 183 lbs | - |
| Lead And Lead Compounds | 137 lbs | - |
| Benzo[g,h,i]perylene | 17 lbs | - |
Maui Electric Co Ltd Maalaea Generating Station · AIR-pathway site
Nearest TRI Facilities to Maui Electric Co Ltd Maalaea Generating Station
Closest other reporters in Hawaii - including Maui Electric Co Ltd Kahului Generating Station, Maui Electric Co Ltd Miki Basin Generating Station, Maui Electric Co Ltd Palaau Generating Station, 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. Gorgas Steam Plant, Prepa - San Juan Steam Plant, U.S. Tva Magnolia Combined Cycle Plant.
Compare beyond Hawaii
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Maui Electric Co Ltd Maalaea Generating Station on cumulative reported pounds (435.5K lbs) and distinct chemical count (7). Release-pound peers include Gorgas Steam Plant, Henkel US Operations Corp, Holcim Solutions & Products. Chemical-count peers include Hubbell Caribe Ltd, Celanese Microcircuits Industries Ltd., Virgin Islands Water & Power Authority. 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.
- Gorgas Steam Plant Parrish, AL · Electric Utilities 435.4K lbs reported
- Henkel US Operations Corp Warren, MI · Chemicals 435.1K lbs reported
- Holcim Solutions & Products Prescott, AR · Plastics and Rubber 435.1K lbs reported
- US Marine Corps Recruit Depot Parris Island (ranges) Parris Island, SC · Other 435.0K 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, Hawaiian Electric Co Inc Waiau Generating Station, Maui Electric Co Ltd Kahului 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, Naphthalene, Polycyclic aromatic compounds; nearby reporters include Maui Electric Co Ltd Kahului Generating Station. Maui Electric Co Ltd Maalaea Generating Station stamps MID 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 Maui Electric Co Ltd Maalaea Generating Station TRI extract (MID · 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.
Maui Electric Co Ltd Maalaea Generating Station totals are self-reported EPCRA §313 estimates for Kihei, HI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221112 · Electric Utilities. 36.1% of Maui TRI pounds in this extract. Nearest ABS peer: Gorgas Steam Plant (Δ 18 lbs). Pounds ≠ exposure.
Maui Electric Co Ltd Maalaea Generating Station stamps MID 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