Bannock, 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.
Environmental data for Bannock in Idaho · Population: 88,457
TRI sites such as La Semiconductor Llc.; SDWIS systems such as CHUBBUCK CITY OF; MCCAMMON CITY OF; INKOM CITY OF; NPL sites such as Pacific Hide & Fur Recycling Co.; Union Pacific Railroad Co. anchor Bannock, ID's EPA extract. Derived burden score 40/100 (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 Bannock include ARIMO CITY OF; WHITEWATER SUBD; PLEASANT ACRES MOBILE HOME PARK, while La Semiconductor Llc. leads reported TRI pounds among local Form R filers. AQS median AQI 39 / peak 104 in 2024.
Burden score 40/100 (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 Bannock -- 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 Bannock, ID: EPA TRI 2023 reporting year
Same facilities, both years
-4.9%
1 facilities that filed in 2022 and 2023
Whole inventory
-4.9%
6.7 thousand lb → 6.4 thousand lb, every facility that filed
- Bannock, ID's total reported releases fell from 6.7 thousand lb in 2022 to 6.4 thousand lb in 2023, based on EPA TRI filings.
- Bannock, ID's off-site transfers fell from 2.6 thousand lb in 2022 to 2.4 thousand lb in 2023, based on EPA TRI filings.
- Bannock, ID's air releases fell from 4.1 thousand lb in 2022 to 3.9 thousand 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 | 286 (78%) | 78 | 2 | 104 |
| 2023 | 293 (80%) | 39 | 2 | 557 |
| 2022 | 270 (74%) | 93 | 2 | 140 |
| 2021 | 245 (67%) | 112 | 7 | 155 |
| 2020 | 284 (78%) | 72 | 2 | 165 |
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 (19)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CHUBBUCK CITY OF | 15,842 | 0 |
| MCCAMMON CITY OF | 800 | 0 |
| INKOM CITY OF | 792 | 0 |
| DOWNEY CITY OF | 625 | 0 |
| LAVA HOT SPRINGS CITY OF | 386 | 0 |
| ARIMO CITY OF | 368 | 3 |
| TYHEE AND S AND N ESTATES WATER ASSN | 300 | 0 |
| LACEYS VISTA ACRES WATER CORP | 200 | 0 |
| D AND M WATER ASSN | 142 | 0 |
| WHITEWATER SUBD | 106 | 1 |
| EQUESTRIAN ESTATES | 88 | 0 |
| PLEASANT ACRES MOBILE HOME PARK | 85 | 2 |
| MORELAND COUNTRY COURT | 60 | 3 |
| SMITH ROAD WATER USERS ASSN | 58 | 3 |
| THUNDER CANYON ESTATES HOMEOWNERS ASSOC | 35 | 0 |
| SPACE ACRES WATER USERS ASSN | 29 | 0 |
| SWAN LAKE CULINARY WATER COMPANY | 29 | 0 |
| MOOSE MOUNTAIN | 27 | 0 |
| EVERGREEN ACRES SUBD | 25 | 0 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | La Semiconductor Llc. | 31.2K lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Pacific Hide & Fur Recycling Co. | Deleted NPL Site | 42.30 |
| Union Pacific Railroad Co. | Deleted NPL Site | 53.47 |
Cities in Bannock (7)
Frequently Asked Questions
What is the environmental risk level in Bannock, Idaho? ▼
Are there Superfund sites in Bannock? ▼
How many toxic release facilities are in Bannock? ▼
What is the air quality in Bannock? ▼
Is the drinking water safe in Bannock? ▼
What environmental agencies cover Bannock? ▼
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.