Shoshone, ID
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Shoshone in Idaho · Population: 13,580
TRI sites such as Hecla Ltd Lucky Friday Mine Unit; U.S. Silver - Idaho Inc; US EPA Fund-Lead Superfund Site/bunker Hill Ctp; SDWIS systems such as CENTRAL SHOSHONE COUNTY WATER DIST; E SHOSHONE COUNTY WATER DIST WALLACE; PINEHURST WATER DIST; NPL sites such as Bunker Hill Mining & Metallurgical Complex anchor Shoshone, ID's EPA extract. Derived burden score 53/100 (Moderate 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 Shoshone include CENTRAL SHOSHONE COUNTY WATER DIST; E SHOSHONE COUNTY WATER DIST WALLACE; E SHOSHONE COUNTY WATER DIST MULLAN, while Hecla Ltd Lucky Friday Mine Unit leads reported TRI pounds among local Form R filers. AQS median AQI 46 / peak 112 in 2024.
Burden score 53/100 (Moderate 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 Shoshone -- 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 Shoshone, ID: EPA TRI 2023 reporting year
Same facilities, both years
-6.5%
5 facilities that filed in 2022 and 2023
Whole inventory
-6.5%
20.6 million lb → 19.2 million lb, every facility that filed
- Shoshone, ID's total reported releases fell from 20.6 million lb in 2022 to 19.2 million lb in 2023, based on EPA TRI filings.
- Shoshone, ID's water releases rose from 1.8 thousand lb in 2022 to 4.7 thousand lb in 2023, based on EPA TRI filings.
- Shoshone, ID's air releases fell from 16.3 thousand lb in 2022 to 13.1 thousand lb in 2023, based on EPA TRI filings.
- Shoshone, ID's chemicals reported fell from 23 in 2022 to 21 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 | 209 (57%) | 156 | 1 | 112 |
| 2023 | 197 (54%) | 162 | 3 | 160 |
| 2022 | 217 (59%) | 141 | 4 | 172 |
| 2021 | 186 (51%) | 162 | 9 | 179 |
| 2020 | 221 (60%) | 138 | 0 | 440 |
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 Idaho, see the EPA's AirNow.gov.
Water Systems (13)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CENTRAL SHOSHONE COUNTY WATER DIST | 6,098 | 1 |
| E SHOSHONE COUNTY WATER DIST WALLACE | 2,388 | 2 |
| PINEHURST WATER DIST | 1,950 | 0 |
| E SHOSHONE COUNTY WATER DIST MULLAN | 840 | 1 |
| CATALDO WATER DIST | 680 | 1 |
| KINGSTON WATER DIST 1 | 585 | 0 |
| AVERY WATER AND SEWER DIST | 114 | 2 |
| SUNNY ACRES | 100 | 1 |
| CALDER WATER AND SEWER DISTRICT | 80 | 0 |
| WEIR GULCH WATER ASSN | 80 | 0 |
| CLARKIA WATER AND SEWER DIST | 53 | 0 |
| E SHOSHONE COUNTY WATER DIST BURKE | 45 | 1 |
| MURRAY WATER ASSN INC | 35 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Hecla Ltd Lucky Friday Mine Unit | 58.7M lbs |
| 2 | U.S. Silver - Idaho Inc | 18.8M lbs |
| 3 | US EPA Fund-Lead Superfund Site/bunker Hill Ctp | 3.4M lbs |
| 4 | Spunstrand Inc. | 77.3K lbs |
| 5 | Sunshine Silver Mine | 25 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Bunker Hill Mining & Metallurgical Complex | NPL Site | 54.76 |
Cities in Shoshone (10)
Frequently Asked Questions
What is the environmental risk level in Shoshone, Idaho? ▼
Are there Superfund sites in Shoshone? ▼
How many toxic release facilities are in Shoshone? ▼
What is the air quality in Shoshone? ▼
Is the drinking water safe in Shoshone? ▼
What environmental agencies cover Shoshone? ▼
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.