Sanders, MT
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 Sanders in Montana · Population: 12,936
TRI sites such as US Antimony Corp; Thompson River Lumber; SDWIS systems such as PLAINS TOWN OF; HOT SPRINGS MUNICIPAL WATER; WATER SERVICE INC TROUT CREEK anchor Sanders, MT's EPA extract. Derived burden score 16/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Sanders include WOODSIDE PARK COUNTY WATER AND SEWER DIS, while US Antimony Corp leads reported TRI pounds among local Form R filers. AQS median AQI 21 / peak 69 in 2024.
Burden score 16/100 (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 Sanders -- 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.
Release-over-release change
What changed for Sanders, MT: EPA TRI 2023 reporting year
Same facilities, both years
-69.9%
1 facilities that filed in 2022 and 2023
Whole inventory
-69.9%
21 lb → 6 lb, every facility that filed
- Sanders, MT's total reported releases fell from 21 lb in 2022 to 6 lb in 2023, based on EPA TRI filings.
- Sanders, MT's land releases fell from 15 lb in 2022 to 2 lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
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 | 339 (93%) | 25 | 0 | 69 |
| 2023 | 263 (72%) | 96 | 3 | 181 |
| 2022 | 266 (73%) | 94 | 2 | 188 |
| 2021 | 232 (65%) | 104 | 8 | 207 |
| 2020 | 302 (83%) | 56 | 1 | 261 |
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 (11)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PLAINS TOWN OF | 1,700 | 0 |
| HOT SPRINGS MUNICIPAL WATER | 600 | 0 |
| WATER SERVICE INC TROUT CREEK | 350 | 0 |
| NOXON WATER DISTRICT | 330 | 0 |
| SALISH SHORES TRADE WINDS COMM VILLAGE | 215 | 0 |
| PARADISE WATER DISTRICT | 200 | 0 |
| WOODSIDE PARK COUNTY WATER AND SEWER DIS | 115 | 2 |
| HERON COMMUNITY WATER SYSTEM | 84 | 0 |
| CLEAR VIEW ACADEMY | 70 | 0 |
| NORTH SHORE ESTATES HOA | 65 | 0 |
| AVISTA UTILITIES NOXON RAPIDS DAM | 43 | 0 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | US Antimony Corp | 9.7K lbs |
| 2 | Thompson River Lumber | 98 lbs |
Cities in Sanders (8)
Frequently Asked Questions
What is the environmental risk level in Sanders, Montana? ▼
Are there Superfund sites in Sanders? ▼
How many toxic release facilities are in Sanders? ▼
What is the air quality in Sanders? ▼
Is the drinking water safe in Sanders? ▼
What environmental agencies cover Sanders? ▼
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.
Read our methodology - how this data is sourced, computed, and verified.