AK · EPA TRI · SDWIS · Superfund

Alaska environmental disclosure record

According to EPA's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List extracts, this is Alaska's full public registry profile, toxic releases, drinking-water systems, and Superfund sites in one place.

TRI facilities
57
Reported releases
3.85B lbs
#1 of 56
Water systems
406
Superfund NPL sites
9

Alaska vs. every U.S. state

Cumulative TRI-reported release pounds, with this state marked in the national distribution

3853M lbs Top 2% higher than 98% of 56 states with TRI reporters

This state 0 lbs 2B+ lbs every state with TRI reporters, bucketed by value

Each bar is a $1M-wide band; taller bars hold more states with TRI reporters. 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

AK regulatory profile by statute

Violation/site counts mapped to the EPA statutes this portal tracks

records

What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.

Source EPA SDWIS / Superfund

How Alaska compares across two EPA disclosure measures

The highlighted point is Alaska. The vertical axis is the share of tracked water systems with at least one health-based SDWIS record; the horizontal axis is TRI-reported pounds per facility on a logarithmic scale so the full state distribution stays readable. The crosshairs use the portal’s published national benchmark medians.

EPA disclosure intensity across states with both TRI facilities and water-system records 2×2 strategic matrix plotting 56 entities by TRI release intensity (log₁₀ lbs per facility) (X) and Water systems with a health-based record (%) (Y), with a crosshair dividing the plot into four quadrants. Higher release / higher record shareLower release / higher record shareHigher release / lower record shareLower release / lower record share 3456789 020406080100 TRI release intensity (log₁₀ lbs per facility) Water systems with a health-based record (%) AK highlighted Alaska
EPA disclosure intensity across states with both TRI facilities and water-system records

This matrix compares disclosure rates, not toxicity, exposure, current compliance, or drinking-water safety. A lower position on either axis is not a safety rating; use the underlying facility and water-system records for context.

According to EPA TRI, SDWIS, and Superfund NPL extracts, Alaska (AK) lists 57 TRI-reporting facilities disclosing 3.85B lbs of toxic releases. The same extracts list 9 Superfund sites and 406 EPA-regulated water systems, of which 276 carry health-based SDWIS violation rows. PlainEnviro's composite environmental health score for Alaska is 13/100 (grade F), benchmarked against all U.S. states on chemical release intensity, drinking-water health violations, Superfund site burden, and water violation rate. This is a percentile-derived composite from federal disclosure counts, not a clinical health-risk assessment.

F 13

Alaska Environmental Health Score

A percentile-benchmarked 0–100 composite from 4 EPA federal datasets, with weight redistribution for any unavailable dimension

4/4 dimensions · percentile-benchmarked

Chemical Release Intensity F 5
67.6M (lbs per facility)
Drinking Water Health Violations F 19
68.0% (% of systems)
Superfund Site Burden F 5
15.8 (sites per 100 facilities)
Water Violation Rate F 22
11.9 (violations per system)

Benchmarks derived from EPA TRI, SDWIS, and Superfund NPL extracts across all 56 U.S. states and territories

TRI Facilities

57

Low

Water Systems

406

Moderate

Superfund Sites

9

Low

Total Releases

3.85B lbs

Very high

Compliance Snapshot - AK

Sites with no recorded health violations 40.4%
Sites with at least one open violation 59.6%

Alaska's profile joins three independently maintained EPA programs into one statewide record: the Toxics Release Inventory (TRI, EPCRA Section 313 industrial disclosures), the Safe Drinking Water Information System (SDWIS, Safe Drinking Water Act compliance), and the Superfund National Priorities List. Each program uses its own reporting cadence and facility-identification scheme; PlainEnviro joins them by matched facility and system location rather than a shared federal ID, so a site absent from one program is never assumed absent from another. The counts below reflect the portal's rebuild as of August 2026.

Activity clusters in counties such as Anchorage Municipality, Matanuska-susitna Borough, Bethel Census Area, which account for the highest combined facility, water-system, and Superfund presence. Monitoring and reporting violations are not included in the SDWIS counts shown here.

Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.

What does this state's environmental record show?

TRI Facilities
57
Water Systems
406
Superfund Sites
9
Health-Based Violation Records
4,843
Total Releases
3.85B lbs
cumulative, all reported years
Systems with Records
276
water systems

Release-over-release change

What changed for Alaska: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

+15.8%

50 facilities that filed in 2022 and 2023

Whole inventory

+15.8%

777.1 million lb → 899.6 million lb, every facility that filed

Between the two reporting years, 1 facility filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.

  • Alaska's total reported releases rose from 777.1 million lb in 2022 to 899.6 million lb in 2023, based on EPA TRI filings.
  • Alaska's off-site transfers fell from 741.4 thousand lb in 2022 to 475.3 thousand lb in 2023, based on EPA TRI filings.
  • Alaska's air releases fell from 448.0 thousand lb in 2022 to 367.0 thousand lb in 2023, based on EPA TRI filings.
  • Alaska's land releases rose from 775.0 million lb in 2022 to 897.8 million lb in 2023, based on EPA TRI filings.

Largest Polluters

View all →
# Facility Total Releases
1 Red Dog Operations 3.34B lbs
2 Hecla Greens Creek Mining Co 375.5M lbs
3 Fort Knox Mine 79.4M lbs
4 Pogo Mine 34.9M lbs
5 Coeur Alaska Inc Kensington Gold Project 11.3M lbs
6 Golden Valley Electric Assoc Healy Power Plant 2.3M lbs
7 Doyon Utilities Ft Wainwright Ak 976.5K lbs
8 Trident Seafoods Corp Akutan Shore Plant 960.6K lbs
9 Usibelli Coal Mine Inc. 941.0K lbs
10 US Dod Usaf Eielson Afb Ak 845.3K lbs
11 Fort Wainwright Main Cantonment 754.0K lbs
12 Tesoro Alaska - Kenai Refinery 245.8K lbs
13 Apma 9156-GIL Exploration Site 183.9K lbs
14 US Dod Usaf Joint Base Elmendorf-Richardson 175.1K lbs
15 Trident Seafoods - Sandpoint 121.2K lbs
16 Trident Seafoods North Naknek Facility 73.4K lbs
17 Delta Western LLC Haines Bulk Facility 50.5K lbs
18 Trident Seafoods / St Paul 38.6K lbs
19 Petro Star Valdez Refinery 36.9K lbs
20 US Army Donnelly Training Area Ranges 32.5K lbs
21 Delta Western LLC Juneau Bulk Facility 31.6K lbs
22 Vigor Alaska 24.2K lbs
23 Tesoro - Anchorage Terminal 24.1K lbs
24 Delta Western LLC Dutch Harbor Bulk Facility 23.8K lbs
25 Golden Valley Electric Assoc North Pole Power Plant 15.7K lbs
26 Unisea Inc. 13.9K lbs
27 Univar Solutions USA 13.4K lbs
28 Crowley Juneau Bulk Fuel Storage Facility 11.1K lbs
29 Petro Star Valdez Petroleum Terminal 10.1K lbs
30 Petro Star Inc. North Pole Refinery 9.8K lbs
31 Mpc Alaska Terminal Co Llc- North Pole 8.4K lbs
32 Crowley Ketchikan Bulk Fuel Storage Facility 7.6K lbs
33 Crowley Valdez Facility 7.3K lbs
34 Crowley Marine Services Bethel 5.5K lbs
35 Crowley Palmer Facility 4.6K lbs
36 US Coast Guard Base Kodiak 3.5K lbs
37 Crowley Kotzebue Bulk Fuel Facility 2.8K lbs
38 Crowley Kenai Facility 2.5K lbs
39 Petrostar Inc. - Port of Alaska Terminal 2.2K lbs
40 Aurora Energy LLC 1.9K lbs
41 US Ecology Alaska LLC 1.0K lbs
42 Petro Star Fairbanks Rail & Truck Terminal 977 lbs
43 Northern Oilfield Solutions LLC Prudhoe Bay Bulk Facility 488 lbs
44 U.S. Coast Guard Base Ketchikan 333 lbs
45 Emulsion Products Co - North Pole Facility 288 lbs
46 Manh Choh Mine Development 285 lbs
47 US Ecology Alaska LLC 55 lbs
48 Trident Seafoods - Cordova North Plant 10 lbs
49 Inlet Energy LLC Anchorage Warehouse 8 lbs
50 Halliburton Prudhoe Bay Field Camp (north Slope) 3 lbs
51 Delta Western LLC Anchorage Warehouse 2 lbs
52 Halliburton Prudhoe Bay Baroid 1 lbs
53 Petro Star Inc DBA North Pacific Fuel - Kodiak 1 lbs
54 Halliburton Sterling Facility 0 lbs
55 Brenntag Pacific Inc 0 lbs
56 Colaska Inc DBA University Redi Mix (twin Rich) 0 lbs
57 Doyon Utilities Ft Greely Ak 0 lbs

Water Quality

Systems with Health Violations

Water System Population Violations
TATITLEK WATER SYSTEM 95 213
KWETHLUK NEW PIPED WATER SYSTEM 760 175
UNALAKLEET CITY WATER SUPPLY 757 174
KOTZEBUE MUN. WATER SYSTEM 3,234 135
KAKE MUNICIPAL WATER 415 131
VALLENAR VIEW MOBILE HOME PARK 225 130
BUCKLAND WATER SYSTEM 600 130
DEERING UTILITY SYSTEM 160 127
GRAYLING WATER SYSTEM 207 120
DIOMEDE JOINT UTILITIES 83 112
THORNE BAY, CITY OF 470 106
KIVALINA WATER SYSTEM 452 106
CHALKYITSIK VILLAGE WATER 76 92
GALENA WTP1 - CITY 490 82
KB SUB. WATER SERVICE ASSOC. 170 81
KASAAN 66 78
HYDABURG 415 77
NUNAM IQUA WATER SYSTEM 213 75
SELAWIK SAFEWATER FACILITY 846 72
WALES WATER SYSTEM 173 68

Cities with Water Issues

Superfund Sites (9)

Site Name Status HRS Score
Adak Naval Air Station NPL Site 51.37
Alaska Battery Enterprises Deleted NPL Site 30.98
Arctic Surplus Deleted NPL Site 42.24
Eielson Air Force Base NPL Site 48.14
Elmendorf Air Force Base NPL Site 45.91
Fort Richardson (USARMY) NPL Site 50.00
Fort Wainwright NPL Site 42.40
Salt Chuck Mine NPL Site 50.00
Standard Steel & Metal Salvage Yard (USDOT) Deleted NPL Site 46.25

Cities with Environmental Records

Anchorage
7 facilities · 80 water systems
Fairbanks
5 facilities · 18 water systems
North Pole
5 facilities · 2 water systems
Juneau
4 facilities · 2 water systems
Ketchikan
3 facilities · 4 water systems
Valdez
3 facilities · 3 water systems
Prudhoe Bay
3 facilities · 0 water systems
Kenai
2 facilities · 5 water systems
Delta Junction
2 facilities · 2 water systems
Kodiak
2 facilities · 2 water systems
Kotzebue
2 facilities · 1 water systems
Dutch Harbor
2 facilities · 0 water systems
Fort Wainwright
2 facilities · 0 water systems
Healy
2 facilities · 0 water systems
Palmer
1 facilities · 15 water systems
Bethel
1 facilities · 9 water systems
Haines
1 facilities · 2 water systems
Akutan
1 facilities · 1 water systems
Cordova
1 facilities · 1 water systems
Eielson Afb
1 facilities · 1 water systems

Frequently Asked Questions

How many TRI facilities are in Alaska?
Alaska has 57 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 3.85B lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Alaska have Superfund sites?
Yes, Alaska has 9 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
What does EPA SDWIS list for drinking water in Alaska?
Alaska has 406 EPA-regulated water systems in the Safe Drinking Water Information System (SDWIS) extract used here. 276 water systems have a health-based violation row (MCL exceedance) in this historical extract. A past registry row is not a current drinkability verdict. For current utility conditions, contact the local water utility or the Alaska drinking water program. Source: EPA SDWIS.
What environmental data is available for Alaska?
PlainEnviro provides three categories of EPA environmental data for Alaska: Toxic Release Inventory (TRI) data covering 57 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 406 water systems, and Superfund National Priorities List (NPL) data for 9 contaminated sites.
How does Alaska compare to other states on EPA disclosure counts?
Alaska has 57 TRI facilities with 3.85B lbs in total releases, 9 Superfund sites, and 4,843 water system violations on record. These are federal disclosure counts; they are not toxicity-weighted or population-adjusted risk scores. Source: EPA TRI, SDWIS, and Superfund NPL databases.
What is Alaska's environmental health score?
PlainEnviro's composite environmental health score for Alaska is 13/100 (grade F). This score combines four percentile-benchmarked dimensions from EPA federal extracts: chemical release intensity per TRI facility, drinking-water health violation rate from SDWIS, Superfund site burden relative to industrial activity, and overall water violation rate. Scores are benchmarked against all 56 U.S. states and territories. When a dimension lacks data, its weight redistributes to the remaining dimensions so the score never deflates from missing inputs. This is a registry-count composite, not a clinical exposure or health-outcome assessment.

About This Data

This page aggregates environmental data from three EPA programs for Alaska: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.

PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.

What to do with Alaska's data

Use this state profile as a starting point, then drill into the specific dataset that matters to you.

  • Check the 57 TRI facilities reporting in Alaska for the largest reported releases near a specific county. View facilities
  • 276 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
  • See how Alaska compares to other states on releases, water violations, and Superfund sites. State rankings

Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.

Use and verify this record

Alaska's profile brings together EPA release, drinking-water, and Superfund records. It reports the underlying programs without making a health or environmental-risk determination.

State environmental figures are computed directly from EPA data. The methodology records the joins, definitions, and refresh cadence for each program.

PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.

Federal sources included in this profile
  • EPA Toxics Release Inventory Basic Data Files - annual facility-level release disclosures. epa.gov
  • EPA Safe Drinking Water Information System - public water-system and violation records. epa.gov
  • EPA Superfund National Priorities List - hazardous-waste cleanup-site records. epa.gov