PlainEnviro

Bannock, ID

Moderate Risk (30/100)

A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.

Environmental data for Bannock in Idaho · Population: 88,457

Bannock, ID is tracked across three EPA datasets covering 1 Toxics Release Inventory (TRI) facility, 19 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 30/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.

Industrial disclosures inside the county total 31.2K lbs of reported toxic releases under EPCRA Section 313, while 5 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 39 and a peak AQI of 104 in 2024, with 78% of observed days rated "Good" (0–50).

All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.

Population
88,457
TRI Facilities
1
Water Systems
19
Superfund Sites
0
Total Releases
31.2K lbs

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
2024 Good Air Quality: 78% of days
Unhealthy days: 2
Median AQI: 39

Source: EPA Air Quality System (AQS) Annual AQI by County 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 Population 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 2
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

Frequently Asked Questions

What is the environmental risk level in Bannock, Idaho? ▼
Bannock, ID has an environmental risk score of 30/100 (Moderate Risk), based on 1 TRI facilities, 0 Superfund sites, and 19 water systems on record. 5 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Bannock? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Bannock, ID in the EPA database.
How many toxic release facilities are in Bannock? ▼
Bannock, ID has 1 TRI-reporting facility on record with the EPA Toxic Release Inventory, with a combined total of 31.2K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Bannock? ▼
In 2024, Bannock, ID recorded a median AQI of 39 and a peak AQI of 104. 78% 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 Bannock? ▼
Bannock, ID has 19 EPA-regulated water systems. 5 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 Bannock? ▼
Environmental compliance in Bannock, Idaho is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Idaho 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 Editorial