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Counties → Wisconsin

Eau Claire County, Wisconsin

SDWIS compliance plate

Sheet WI035 · Eau Claire County 111 sys · 2,862 viol · #611/3254

VIOL-SEVERE · HEALTH-MID · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 58.6% flagged
  • HEALTH-MID 22.7% health
  • RANK-TOP #611/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 111 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Sauk County (+ 0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Eau Claire County ranks #611 of 3,254 counties by people served, and #15 of 71 counties in Wisconsin. See methodology · corpus placement.

Eau Claire County standing, lower-flagged corpus third

Flagged-system rate 58.6% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 22.7% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #611 of 3,254 · #15 of 71 in Wisconsin.

Flagged-rate neighbourhood around Eau Claire County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Eau Claire · this county Adams · near Milwaukee · highest 52.1% 58% 58.6% 58.8% 60% 60.2% 95.3%

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

Water Systems

System Name Population Violations PFAS
Eau Claire Waterworks 70,587 8 Detected
Altoona Waterworks 9,627 292 Clean
Augusta Waterworks 1,450 306 -
Fall Creek Waterworks 1,269 65 -
Hillcrest Estates MHP 850 46 -
Menards Old Mill Center 730 107 -
Ferguson Orchard-Eau Claire 610 0 -
Haven Christian Church Inc, The 457 0 -
Fairchild Waterworks 451 277 -
Villa Diann MHP 420 76 -
Pine Edge MHP 300 34 -
Crestview Academy Addition 203 10 -
Ec Co Altoona Beach 200 0 -
Ec Co Altoona Boat Landing 200 0 -
McDonalds Restaurant 200 1 -
Menards Distribution Center Office 200 99 -
Priory The 185 84 -
Northstar Middle School Athletic 150 8 -
Cozy MHP LLC Front 111 110 -
Foster Bar 100 42 -
Ec Co Coon Fork Lk Cmpgd Loop A 100 35 -
Mikes Buckhorn Bar 100 8 -
Ec Co Harstad Park Cmpgd 100 0 -
Equity Livestock Sales 100 0 -
Mega Holiday / Burger King 100 6 -
Ec Co Coon Fork Lk Loop C Shower Bldg 100 0 -
Menards Dist Center North 100 0 -
Countryside Estates Mhc 96 48 -
W R R Environmental Services Co Inc 95 136 -
Loyal Order of Moose Lodge 1408 90 5 -
Anthony Acres School 85 48 -
Brackett Bar 80 15 -
Eau Claire Coop Oil Co 80 95 -
From the Roots 79 22 -
Welcome Matt The 75 5 -
Brown Hut Tavern 75 0 -
Harvest Moon Pub & Eatery 75 5 -
Bonnie Vale Park 1 70 28 -
Chippewa Valley Airport Service 65 0 -
Allstate Peterbilt Group 65 4 -
Sandstone Building 64 0 -
Berghs Mobile Home Park 60 27 -
Fellowship Alliance Church 60 0 -
Dicks on 12 60 0 -
Westgate Trap House 60 0 -
Down to Earth - Picture This 56 0 -
Elk Lake Tavern 55 20 -
Precision Pipeline 55 0 -
Bonnie Vale Park 2 51 56 -
St Johns Lutheran Church 50 19 -

Compare beyond Wisconsin

Lower-flagged peers for Eau Claire County

Cross-state counties nearest Eau Claire County on flagged-system share (58.6%) and cumulative violation count (2,862). 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.