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Counties → Wisconsin

Trempealeau County, Wisconsin

SDWIS compliance plate

Sheet WI121 · Trempealeau County 75 sys · 2,859 viol · #1771/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-MID · BOOK-MOST

  • VIOL-SEVERE 73.3% flagged
  • HEALTH-LOW 15.1% health
  • RANK-MID #1771/3254
  • PHOTO-FINISH ±0.6 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-MID 75 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Pepin County ( -0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Trempealeau County ranks #1,771 of 3,254 counties by people served, and #46 of 71 counties in Wisconsin. See methodology · corpus placement.

Trempealeau County standing, lower-flagged corpus third

Flagged-system rate 73.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 15.1% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Trempealeau County . Population served ranks #1,771 of 3,254 · #46 of 71 in Wisconsin.

Flagged-rate neighbourhood around Trempealeau County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Sheboygan · near Milwaukee · highest 52.1% 72% 72% 72.6% 72.7% 73.3% 95.3%

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

Water Systems

System Name Population Violations PFAS
Arcadia Waterworks 3,737 47 -
Trempealeau Waterworks 1,888 281 -
Whitehall Waterworks 1,820 56 -
Osseo Waterworks 1,701 27 -
Galesville Waterworks 1,679 38 -
Independence Waterworks 1,500 218 -
Blair Waterworks 1,280 199 -
Strum Waterworks 1,100 357 -
Eleva Waterworks 635 360 -
Ettrick Waterworks 536 21 -
Pigeon Falls Waterworks 409 18 -
Lincoln TN of SD 1 300 7 -
Eleva Strum High School 175 224 -
WI DNR Perrot 3 Sand Cliff 150 21 -
Champions Riverside 2 Lower Cmpgd 150 25 -
Dodge Sportsmens Park Lodge 150 0 -
Dodge Sanitary Dist 1 120 134 -
Country Road Estates 120 153 -
Eckers Apple Farm 110 0 -
Jailhouse Saloon 100 6 -
WI DNR Perrot Cmpgd 100 12 -
Champions Riverside 1 Bar Restaurant 100 19 -
Eleva Strum Elementary School 100 2 -
St Pauls Ev Lutheran Church 80 12 -
North Beaver Creek Luth Church-Brick 80 4 -
North Beaver Creek Luth Ch-White 80 3 -
Berean Baptist Church 80 11 -
Rustic Whitetail, The 75 7 -
Source Energy Services 75 0 -
French Creek Lutheran Church 60 23 -
Galesville Dental 52 0 -
WI DNR Perrot 1 Shop Well 50 98 -
Champions Riverside 4 West Cmpgd 50 0 -
Most Sacred Heart Catholic Church 50 0 -
Smart Sand Blair LLC 45 47 -
Smart Sand Blair LLC Dry Plant 45 2 -
Chimney Rock Luth Church 40 17 -
Docs Roadhouse 40 0 -
Bethel Ev Lutheran Church 40 26 -
Dollar General Store #14069 38 0 -
Boondocks Locker Room 35 23 -
Grace Lutheran Church 30 39 -
Four Corners 30 32 -
Beedles Bar & Grill 30 0 -
Elk Creek Lutheran Church 30 24 -
Backroads Pub & Grill LLC 30 49 -
Emmanuel Alliance Church 30 8 -
Cat Daddys Bar & Grill 27 6 -
Osseo Merchants Baseball Park 25 11 -
Osseo Community Church 25 13 -

Compare beyond Wisconsin

Lower-flagged peers for Trempealeau County

Cross-state counties nearest Trempealeau County on flagged-system share (73.3%) and cumulative violation count (2,859). 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.