PlainEnviro

Teton, MT

Low Risk (9/100)

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 Teton in Montana · Population: 6,291

SDWIS systems such as CHOTEAU CITY OF; FAIRFIELD TOWN OF; TRI COUNTY WATER DISTRICT anchor Teton, MT's EPA extract. Derived burden score 9/100 (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 Teton in this extract; water coverage still lists CHOTEAU CITY OF; FAIRFIELD TOWN OF; TRI COUNTY WATER DISTRICT. AQS monitors logged median AQI 13 / peak 101 in 2024.

Burden score 9/100 (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 Teton -- 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.

County population (Census ACS)
6,291
TRI Facilities
0
Water Systems
10
Superfund Sites
0
Total Releases
0 lbs

Air Quality History (2024–2024)

EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.

Year Good Moderate Unhealthy (SG) Max AQI
2024 286 (92%) 23 1 101
2024 Good Air Quality: 92% of days
Unhealthy days: 1
Median AQI: 13

Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)

For real-time air quality readings and pollutant breakdowns in Montana, see the EPA's AirNow.gov.

Water Systems (10)

System System pop (SDWIS) Violations
CHOTEAU CITY OF 1,691 0
FAIRFIELD TOWN OF 718 0
TRI COUNTY WATER DISTRICT 470 0
DUTTON TOWN OF 338 2
POWER TETON COUNTY WATER DIST 205 0
NEW ROCKPORT COLONY INC 160 0
BYNUM - TETON CO W & S DISTRICT 100 0
ROCKPORT COLONY 92 1
HILLCREST COLONY 89 0
MILLER COLONY 84 2

Cities in Teton (6)

Choteau
0 facilities · 3 water
Power
0 facilities · 3 water
Bynum
0 facilities · 1 water
Dutton
0 facilities · 1 water
Fairfield
0 facilities · 1 water
Pendroy
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Teton, Montana? ▼
Teton, MT has an environmental risk score of 9/100 (Low Risk), based on 0 TRI facilities, 0 Superfund sites, and 10 water systems on record. 3 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Teton? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Teton, MT in the EPA database.
How many toxic release facilities are in Teton? ▼
Teton, MT 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 Teton? ▼
In 2024, Teton, MT recorded a median AQI of 13 and a peak AQI of 101. 92% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Teton? ▼
Teton, MT has 10 EPA-regulated water systems. 3 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 Teton? ▼
Environmental compliance in Teton, Montana is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Montana 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