PlainWater
Counties → Wisconsin

Pierce County, Wisconsin

Water Systems
95
Population Served
32,378
Total Violations
1,498
441 health-based
PFAS Detected
2
of 3 tested

Violation Analysis

69.5%
Systems with Violations
15.8
Avg Violations per System
29.4%
Health-Based Violations

Water Source Types

GW
50 systems (53%)

PFAS Contamination

3
Systems Tested
2
PFAS Detected
66.7%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Pierce Wisconsin water systems by violation status, EPA SDWIS records.

No violations on record (13) One or more violations (37)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
River Falls Waterworks 16,000 9 Clean
Prescott Waterworks 4,258 78 Detected
Ellsworth Waterworks 3,304 40 Detected
Spring Valley Waterworks 1,409 25 -
Elmwood Waterworks 798 77 -
Belle Ame Vineyard 500 0 -
Bay City Waterworks 499 29 -
Ave Maria Academy 226 40 -
Meyer Utility Structures LLC 225 66 -
Plum Petroleum LLC 202 24 -
Exile Bar 200 30 -
Captain Jacks Saloon 200 3 -
Plum City Perk 200 0 -
St Croix Improvements 175 27 -
Plum City High School 160 12 -
Ellsworth Coop Creamery 150 9 -
Hager Heights Drive IN 150 0 -
Our Saviors Lutheran Church 140 7 -
C3 Church 127 265 -
Plum City Elementary School 125 8 -
Plum City Care Center Nursing Home 120 24 -
Last Resort Campground 120 0 -
Maiden Rock Water Utility 118 9 -
Freedom Island Cmpgd 110 0 -
Freedom Island Cmpgd - North 100 0 -
Clifton Highlands Golf 100 0 -
Nugget Lake County Park - Picnic Area 100 0 -
Nugget Lake County Park - Cmpgd 100 12 -
St Pauls United Ch of Christ 100 13 -
Forestville Winery and Event Center 100 0 -
Netties Volta 90 0 -
Vino in the Valley 75 0 -
Heartland Montessori School 64 21 -
Svea Lutheran Church 60 10 -
29 Express 60 3 -
Honey Hole Tavern The 60 8 -
Harbor Bar 60 12 -
Nestle Purina Pet Care Co 55 6 -
Rush River Lutheran Church 50 3 -
Shady Grove 50 0 -
Gas Lite 50 94 -
Valley Bar & Grill, The 50 11 -
Clifton Hollow Golf Course 50 23 -
Ridgetop 50 3 -
Spring Valley Golf Course 50 3 -
Country Manor Apts 50 87 -
Wieser Concrete Products Inc 45 75 -
Plummer Concrete & Associates Inc 45 0 -
Kingdom Hall Jehovah Wt Ch 40 19 -
Pierce-Pepin Cooperative Services 40 18 -

Other Counties in Wisconsin

Milwaukee County
85 systems · 953,104 served · 2,602 violations
Dane County
301 systems · 517,785 served · 7,065 violations
Waukesha County
590 systems · 322,690 served · 24,998 violations
Brown County
149 systems · 246,872 served · 2,891 violations
Outagamie County
107 systems · 179,535 served · 1,999 violations
Racine County
195 systems · 179,476 served · 10,597 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Pierce County? ▼
Pierce County has 1,498 total drinking water violations across 95 water systems, of which 441 are health-based violations. 69.5% of systems have at least one violation.
How many people get water from Pierce County systems? ▼
Water systems in Pierce County serve approximately 32,378 people through 95 public water systems.
Has PFAS been detected in Pierce County water? ▼
Of 3 water systems tested for PFAS in Pierce County, 2 had PFAS detected (66.7% detection rate).
What types of water sources supply Pierce County? ▼
Water systems in Pierce County use GW (50 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 29.4% of Pierce County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - 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 Editorial

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.