Ada, ID
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 Ada in Idaho · Population: 508,052
Ada, ID is tracked across three EPA datasets covering 15 Toxics Release Inventory (TRI) facilities, 64 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 47/100 (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 1.0M lbs of reported toxic releases under EPCRA Section 313, while 24 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 44 and a peak AQI of 214 in 2024, with 63% 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.
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 | 230 (63%) | 101 | 28 | 214 |
| 2023 | 251 (69%) | 111 | 3 | 120 |
| 2022 | 196 (54%) | 162 | 6 | 166 |
| 2021 | 223 (61%) | 124 | 15 | 173 |
| 2020 | 242 (66%) | 106 | 11 | 198 |
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 (64)
| System | Population | Violations |
|---|---|---|
| VEOLIA WATER IDAHO | 264,978 | 0 |
| MERIDIAN WATER DEPT | 147,340 | 1 |
| KUNA CITY OF | 32,038 | 0 |
| STAR SEWER AND WATER DIST WATER SYSTEM | 14,000 | 0 |
| GARDEN CITY WATER AND SEWER SYSTEM | 12,500 | 0 |
| CAPITOL WATER CORP | 9,000 | 7 |
| EAGLE, CITY OF (WESTERN ZONE) | 6,108 | 0 |
| EAGLE, CITY OF (EASTERN ZONE) | 3,702 | 0 |
| IDOC SBX COMPLEX | 3,309 | 0 |
| IDOC IDAHO STATE CORRECTIONAL CENTER | 2,204 | 1 |
| DRY CREEK WATER COMPANY LLC | 1,125 | 0 |
| HILLSDALE ESTATES HOMEOWNERS ASSN | 800 | 0 |
| DESERT VIEW ESTATES WATER CORP | 650 | 0 |
| MEADOWS AT WEST MOUNTAIN | 550 | 4 |
| RUSTIC ACRES MOBILE HOME PARK | 540 | 1 |
| CITY OF EAGLE - VALNOVA | 490 | 0 |
| CITY OF EAGLE - AVIMOR | 490 | 0 |
| IDOC MOUNTAIN VIEW TRANSFORMATION CENTER | 456 | 3 |
| FLYING H TRAILER RANCH | 430 | 0 |
| LAKEYS CAFE AND TRAILER PARK | 300 | 6 |
| EAGLE GLEN HOMEOWNERS ASSN INC | 300 | 0 |
| WYMOSA WATER ASSN INC | 280 | 0 |
| PARADISE ESTATES WATER CORP | 273 | 7 |
| WEST MEADOWS ESTATES | 270 | 0 |
| FOREST PARK TR CT NO 1 BOZEMAN | 260 | 0 |
| CANYON CREEK MOBILE HOME PARK | 243 | 3 |
| GREENHILLS ESTATES 3 | 200 | 12 |
| KLUGHERZ WATER CORP | 200 | 0 |
| EAGLE MEADOWS MHP | 195 | 0 |
| TIMBERSTONE HOA | 170 | 0 |
| ROLLING MEADOWS MHP | 156 | 1 |
| RIVERS POINT PROPERTY OWNERS ASSN | 140 | 2 |
| EVANS WATER CORP | 137 | 0 |
| EAGLE MHC | 135 | 1 |
| LINDA VISTA MOBILE HOME PARK | 125 | 2 |
| KRIZVIEW PARK | 120 | 3 |
| CHAPARRAL WATER ASSN | 100 | 0 |
| WILLOWBROOK ESTATES PROPERTY OWNERS | 100 | 0 |
| PARK MEADOWLAND WEST MHP | 100 | 0 |
| HAMPTON HOMES HOME OWNERS ASSN | 95 | 0 |
| EAGLE WEST SUBD WATER ASSN | 92 | 0 |
| ATLANTA WATER ASSN | 91 | 0 |
| TERRACE WATER CORP INC | 84 | 0 |
| FRANKLIN DOMESTIC WATER USERS | 75 | 12 |
| STANLEY POND INC | 72 | 4 |
| ISLAND VILLAGE MOBILE HOME PARK | 70 | 11 |
| MALAD AND HILTON WATER COMPANY INC. | 70 | 0 |
| SIERRA WATER CORP | 70 | 0 |
| GROUSE POINT WATER COMPANY LLC | 70 | 0 |
| NORTH HILLS MOBILE VILLAGE | 63 | 0 |
| SOUTHSHORE WATER | 60 | 0 |
| HI VIEW WATER | 55 | 1 |
| SANTA RITA HEIGHTS MHP | 50 | 2 |
| CHRISTIS MOBILE PARK | 50 | 1 |
| FORREY HEIGHTS | 49 | 0 |
| EAGLE POINT COMMUNITY | 46 | 4 |
| MOUNTAIN VIEW ESTATES | 43 | 0 |
| H AND L PARK | 43 | 0 |
| SCOTTYS MOBILE HOME PARK | 42 | 0 |
| LAZY RIVER MOBILE HOME PARK 1 | 41 | 6 |
| ANDERSON CIRCLE WATER CORP | 40 | 0 |
| RIM ACRES MUTUAL WATER | 31 | 0 |
| DELL SUBD WATER ASSN | 30 | 0 |
| RILEY TRAILER PARK | 30 | 2 |
TRI Facilities (15)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Micron Technology Inc | 405.0K lbs |
| 2 | Cs Beef Packers | 349.8K lbs |
| 3 | Army National Guard Orchard Combat Training Center Ranges | 140.6K lbs |
| 4 | Darigold-Boise | 82.9K lbs |
| 5 | Marathon Pipe Line - Boise | 18.4K lbs |
| 6 | Icco Eagle | 14.1K lbs |
| 7 | Boise Facility | 2.7K lbs |
| 8 | Fiber Composites LLC | 1.1K lbs |
| 9 | Ergon Asphalt & Emulsions Inc. - Boise | 557 lbs |
| 10 | Creation Technologies | 4 lbs |
| 11 | Sunroc Corp - Joplin Facility | 0 lbs |
| 12 | Sunroc Corp - Corral Asphalt Plant | 0 lbs |
| 13 | Basalite | 0 lbs |
| 14 | Sunroc Corp Badger Concrete Batch Plant | 0 lbs |
| 15 | Trinity Trailer Manufacturing Inc | 0 lbs |
Cities in Ada (4)
Frequently Asked Questions
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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.