WaterVerge

Is Dresser, WI Tap Water Safe to Drink?

Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

936 residents served 1 water system PWSID: WI6490336
Overall Score
90.4 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#75 of 446 in Wisconsin Top 14% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
90.4/100
waterverge.com
A 90.4/100

Dresser, WI — Water Quality Report

Dresser's drinking water received a grade of A (90.4 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 936 residents using groundwater.

Lead levels were measured at 2.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 8 violations on record, including 5 health-based violations. 3 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Dresser's water

Dresser ranks #75 out of 446 cities in Wisconsin for water quality, placing it above average in the state.

Dresser relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Dresser may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
90.4 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.4/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Dresser, WI water safe to drink?

Concerns Identified

Dresser's drinking water has significant quality concerns based on EPA testing data. With a grade of A (90.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 936 residents using groundwater (wells).

3
Active Violations
2.0 ppb
Lead (90th %ile)
3 events
Disaster History

Recent water quality updates for Dresser

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Dresser's water quality assessment. Grade: A (90.4/100).

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4459). Flood event — may have impacted local water infrastructure.

Violation
2 drinking water violations recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3249). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Dresser's water supply.

Lead Within Limits
Detected: 2.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Dresser's water system has 8 total violations on record, including 5 health-based violations. 3 remain unresolved.

OtherMCL
Most recent violations:
Jul 2017 Consumer Confidence Rule Open
Jul 2017 Consumer Confidence Rule Open
Nov 2014 Coliform (TCR) Resolved
Sep 2012 Coliform (TCR) Resolved
Oct 1999 Coliform (TCR) Resolved

Flood & environmental risk

Polk County has experienced 3 federally declared disasters since 2001. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include St. Croix River.

SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4459
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3249
FLOODING, SEVERE STORMS AND TORNADOES
Flood FEMA DR-1369

Where does Dresser's water come from?

Dresser's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 936 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include St. Croix River (river).

What Dresser residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Dresser's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Dresser's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
2.0 ppb
EPA Action Level: 15 ppb · 13% of limit
Safe Level
Compliance Record

Violation summary

8
Total violations
5
Health-based
3
Active / unresolved
Jul 2017
Most recent violation
Compliance Record

Violations & advisories

8 Total
3 Active
5 Health-based
5 Resolved
Violations by category
Total Coliform Rule
5
Consumer Confidence Rule
2
Jul 2017 Active
Consumer Confidence Rule
Other Violation 0
Jul 2017 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Nov 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 2014
Sep 2012 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2012
Oct 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 1999
Oct 1997 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 1997
Dec 1996 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 1996
Industrial pollution

Top industrial polluters within 10 miles of Dresser

Industrial polluters nearby

Reported releases to surface water by facilities near Dresser, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
CRM - DRESSER
Nonmetallic Mineral Product · CEMSTONE READY MIX
OSCEOLA, WI54020
1.6 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

3
Declared disasters
Aug 2019
Most recent
Flood
Most common type

Polk County has experienced 3 federally declared disasters since 2001. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Aug 2019
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4459
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3249
May 2001
FLOODING, SEVERE STORMS AND TORNADOES
Flood FEMA #1369

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 1.9 ppb from 1993 (0.1 ppb) to 2023 (2.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
936
Water Systems
1
Water Source

Where Dresser's water comes from

Groundwater

Dresser's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 936 people through 1 water system.

Local Hydrology

Water bodies near Dresser

Dresser is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

St. Croix River
river
Infrastructure

Water systems serving Dresser

System Name PWSID Population Source
DRESSER WATERWORKS WI6490336 936 GW
Regional Comparison

How Dresser compares

Full Wisconsin rankings →

Dresser's score of 90.4/100 is above the average of 65/100 among major Wisconsin cities. It outscores 9 of 10 nearby cities.

Dresser (this city)
90.4
Milwaukee
90.2
Madison
35.4
Racine
69.5
Kenosha
45.8
Wisconsin avg
65
City Profile

About Dresser, WI

Wikipedia →

Dresser is a village in Polk County, Wisconsin, United States. The population was 935 at the 2020 census. It is along Wisconsin Highway 35.

Economic Profile
$72,143
Median Income
$173,956
Median Home Value
$1,000/mo
Median Rent
1.6%
Unemployment
Community
34.3
Median Age
201
People / sq mi
23.1%
College Educated
77%
Homeownership
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Frequently asked questions

Is Dresser, WI tap water safe to drink?

Dresser's water quality earned a grade of A (90.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #75 out of 446 cities tested in Wisconsin.

What contaminants are in Dresser's water?

Lead was measured at 2.0 ppb (90th percentile). 8 violations are on record.

How is Dresser's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Dresser?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Dresser's water come from?

Dresser's water is sourced from Groundwater. The city has 1 water system serving approximately 936 residents.

What health violations has Dresser's water system had?

Dresser has 5 health-based violations on record. The most recent violation was recorded in July 2017. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Dresser's groundwater at risk of contamination?

Dresser uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 8 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Dresser's water compare to other cities?

Dresser ranks #75 out of 446 cities in Wisconsin (better than 83% of state cities) and #2255 out of 15744 cities nationally (86th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Dresser's small water system affect quality?

Dresser's system serves approximately 936 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 8 violations on record.