Blaine, 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 Blaine in Idaho · Population: 24,579
TRI sites such as Rocky Mountain Hardware Inc. (hailey); SDWIS systems such as HAILEY WATER AND SEWER; KETCHUM CITY OF; SUN VALLEY WATER AND SEWER DIST anchor Blaine, ID's EPA extract. Derived burden score 27/100 (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 Blaine include BELLEVUE CITY OF; HEATHERLANDS SUBD; CHERRY CREEK, while Rocky Mountain Hardware Inc. (hailey) leads reported TRI pounds among local Form R filers. AQS median AQI 19 / peak 220 in 2024.
Burden score 27/100 (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 Blaine -- 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 Blaine, ID: EPA TRI 2023 reporting year
Same facilities, both years
+7.2%
1 facilities that filed in 2022 and 2023
Whole inventory
+7.2%
1.1 thousand lb → 1.2 thousand lb, every facility that filed
- Blaine, ID's total reported releases rose from 1.1 thousand lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
- Blaine, ID's off-site transfers rose from 1.1 thousand lb in 2022 to 1.1 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 | 310 (86%) | 43 | 4 | 220 |
| 2023 | 323 (98%) | 7 | 0 | 63 |
| 2022 | 321 (90%) | 29 | 2 | 182 |
| 2021 | 288 (82%) | 52 | 10 | 144 |
| 2020 | 323 (88%) | 34 | 6 | 172 |
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 (28)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| HAILEY WATER AND SEWER | 8,000 | 0 |
| KETCHUM CITY OF | 3,555 | 0 |
| SUN VALLEY WATER AND SEWER DIST | 3,400 | 0 |
| BELLEVUE CITY OF | 2,747 | 22 |
| CAREY WATER AND SEWER | 993 | 0 |
| MID VALLEY WATER COMPANY LLC | 450 | 0 |
| HULEN MEADOWS WATER COMPANY | 390 | 0 |
| COLD SPRINGS SUBD | 300 | 0 |
| HELENA RV AND MOBILE HOME PARK | 250 | 0 |
| HEATHERLANDS SUBD | 200 | 2 |
| STARWEATHER ESTATES | 150 | 0 |
| SUNLAND SHORES | 143 | 0 |
| CHERRY CREEK | 138 | 2 |
| THE VALLEY CLUB | 135 | 0 |
| GOLDEN EAGLE RANCH | 120 | 3 |
| SMILEY CREEK WATER USERS ASSN INC | 117 | 7 |
| SACAJAWEA MOBILE HOME PARK | 90 | 0 |
| ASPEN HOLLOW HOMEOWNERS ASSOC | 75 | 1 |
| GREENHORN SUBD | 75 | 9 |
| PARKWOOD | 65 | 3 |
| WOODENHILLS WATER WORKS | 62 | 0 |
| SUNNYHILLS | 61 | 0 |
| GANNETT HOMEOWNERS ASSN | 60 | 5 |
| 85 Acres | 55 | 0 |
| SAGE SPRINGS SUBDIVISION | 53 | 0 |
| PICABO WATER SYSTEM | 50 | 0 |
| HOLIDAY HIGHWAY SUBD | 45 | 1 |
| SYRINGA PARK SUBD | 35 | 0 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Rocky Mountain Hardware Inc. (hailey) | 5.9K lbs |
Cities in Blaine (7)
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.