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Counties → Idaho

Blaine County, Idaho

SDWIS compliance plate

Sheet ID013 · Blaine County 46 sys · 2,888 viol · #1619/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 95.7% flagged
  • HEALTH-LOW 13.5% health
  • RANK-MID #1619/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 46 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Bonneville County ( -0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Blaine County ranks #1,619 of 3,254 counties by people served, and #13 of 44 counties in Idaho. See methodology · corpus placement.

Blaine County standing, mid-flagged corpus third

Flagged-system rate 95.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 13.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,619 of 3,254 · #13 of 44 in Idaho.

Flagged-rate neighbourhood around Blaine County

Lowest/highest poles plus in-state counties nearest Blaine County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Valley · lowest Blaine · this county Nez Perce · near Camas · highest 89.5% 95.6% 95.7% 95.8% 96% 96% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Hailey Water and Sewer 8,000 89 Clean
Ketchum City Of 3,555 10 Clean
Sun Valley Water and Sewer Dist 3,400 159 Clean
Bellevue City Of 2,747 249 -
Bald Mountain 1,000 44 -
Carey Water and Sewer 993 43 -
Mid Valley Water Company LLC 450 47 -
Hulen Meadows Water Company 390 60 -
Cold Springs Subd 300 33 -
Usfs Alturas Lake Water System 202 3 -
Cabin Creek Lds Camp 200 53 -
Camp Manapu 200 59 -
Starweather Estates 150 3 -
Heatherlands Subd 134 48 -
Usfs Snra Head Quarters Bldg 130 126 -
Galena Lodge 120 42 -
Smiley Creek Water Users Assn Inc 117 553 -
The Valley Club 115 14 -
Luther Heights Bible Camp 100 75 -
Smiley Creek Lodge 100 50 -
Usfs Wood River Campground 100 1 -
Ritzau Park Fountain 100 28 -
Camp Sawtooth Presbyterian 85 100 -
Camp Perkins Lutheran Outdoor Ministries 80 34 -
Usfs Easley Campground 78 16 -
Aspen Hollow Homeowners Assoc 75 48 -
Greenhorn Subd 75 105 -
Golden Eagle Ranch 71 30 -
Woodenhills Water Works 62 27 -
Chalet Mobile Home Park 60 44 -
Suntree Hollow Mobile Home Court 60 172 -
Gannett Homeowners Assn 60 203 -
Sage Springs Subdivision 53 0 -
Cathedral Pines Baptist Camp 50 72 -
Picabo Water System 50 97 -
Magic Westside Water Users Inc 47 31 -
Gannett Country Club 45 0 -
Holiday Highway Subd 45 23 -
Usfs Tincup Hiker Transfer Cp 38 2 -
Smokey Lodge 25 31 -
Timmerman Hill Rest Area Itd 25 9 -
Usfs Boundary Picnic Area 25 3 -
Boxcar Fountain 25 27 -
Smiley Creek Dump Station 25 19 -
Life Church 25 3 -
Mountain Humane 25 3 -

Compare beyond Idaho

Mid-flagged peers for Blaine County

Cross-state counties nearest Blaine County on flagged-system share (95.7%) and cumulative violation count (2,888). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.