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Western District, AS

Low Risk (15/100)

Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.

Environmental data for Western District in American Samoa

SDWIS systems such as Central ASG; Fagasa ASG; Vatia ASG anchor Western District, AS's EPA extract. Derived burden score 15/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.

No TRI Form R facilities sit in Western District in this extract; water coverage still lists Central ASG; Fagasa ASG; Vatia ASG. No AQS county monitors report here.

Burden score 15/100 (Low Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Western District -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.

TRI Facilities
0
Water Systems
10
Superfund Sites
0
Total Releases
0 lbs

Water Systems (10)

System System pop (SDWIS) Violations
Central ASG 45,315 67
Fagasa ASG 577 0
Vatia ASG 460 0
Masefau ASG 457 0
Aunuu ASG 402 130
Aoa ASG 344 51
Afono ASG 327 3
Ofu - Olosega ASG 270 21
Tau-Faleasao ASG 236 8
Fitiuta ASG 213 13

Frequently Asked Questions

What is the environmental risk level in Western District, American Samoa? ▼
Western District, AS has an environmental risk score of 15/100 (Low Risk), based on 0 TRI facilities, 0 Superfund sites, and 10 water systems on record. 7 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Western District? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Western District, AS in the EPA database.
How many toxic release facilities are in Western District? ▼
Western District, AS has 0 TRI-reporting facilities on record with the EPA Toxic Release Inventory. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Western District? ▼
Air quality monitoring data (EPA AQS) is not available for Western District, AS. This may indicate no EPA monitoring stations are located in the county. For regional air quality data, see the state environmental profile or visit EPA's AirNow.gov.
Is the drinking water safe in Western District? ▼
Western District, AS has 10 EPA-regulated water systems. 7 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Western District? ▼
Environmental compliance in Western District, American Samoa is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the American Samoa state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

What does this county environmental profile show?

This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro