WaterVerge

Is Tigerton, WI Tap Water Safe to Drink?

Graded B, with 7 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

740 residents served 1 water system PWSID: WI4590462
Overall Score
79.3 / 100
Violations
7 active
Last Updated
May 2026
Source
Groundwater
#271 of 446 in Wisconsin Top 53% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
79.3/100
waterverge.com
B 79.3/100

Tigerton, WI — Water Quality Report

Tigerton's drinking water received a grade of B (79.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 740 residents using groundwater.

Lead levels were measured at 0.9 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 10 violations on record, including 1 health-based violation. 7 remain unresolved.

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

What to know about Tigerton's water

Tigerton ranks #271 out of 446 cities in Wisconsin for water quality, placing it below average in the state.

Tigerton 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, Tigerton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
79.3 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
37.3/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.9 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Tigerton, WI water safe to drink?

Concerns Identified

Tigerton's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 740 residents using groundwater (wells).

7
Active Violations
0.9 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Tigerton

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Tigerton's water quality assessment. Grade: B (79.3/100).

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS, Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

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

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

Violation
1 drinking water violation recorded

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 Tigerton's water supply.

Lead Within Limits
Detected: 0.9 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Tigerton's water system has 10 total violations on record, including 1 health-based violation. 7 remain unresolved. 3 violations were issued in the last 5 years.

TTOtherMR
Most recent violations:
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 Public Notice Open
Jun 2023 Lead and Copper Rule Open
Aug 2013 Coliform (TCR) Resolved
Jul 2013 Consumer Confidence Rule Open

Flood & environmental risk

Shawano County has experienced 2 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

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

Where does Tigerton's water come from?

Tigerton's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 740 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Tigerton residents can do

Install a water filter

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

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
0.9 ppb
EPA Action Level: 15 ppb · 6% of limit
Safe Level
Compliance Record

Violation summary

10
Total violations
1
Health-based
7
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

10 Total
7 Active
1 Health-based
3 Resolved
Violations by category
Consumer Confidence Rule
3
Total Coliform Rule
2
Lead and Copper Rule Revisions
1
Public Notice Rule and Revised PN Rule
1
Lead and Copper Rule
1
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
Public Notice
Other Violation 0
Jun 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Oct 2011 Active
Consumer Confidence Rule
Other Violation 0
Jul 2011 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Aug 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2013
Jul 2013 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2013
Jul 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 1995
Environmental Risk

Flood & disaster history

2
Declared disasters
Aug 2019
Most recent
Flood
Most common type

Shawano County has experienced 2 federally declared disasters since 2005. 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

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.9 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 decreased by 1.5 ppb from 1993 (2.4 ppb) to 2024 (0.9 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
740
Water Systems
1
Water Source

Where Tigerton's water comes from

Groundwater

Tigerton'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 740 people through 1 water system.

Infrastructure

Water systems serving Tigerton

System Name PWSID Population Source
TIGERTON WATERWORKS WI4590462 740 GW
Regional Comparison

How Tigerton compares

Full Wisconsin rankings →

Tigerton's score of 79.3/100 is above the average of 65/100 among major Wisconsin cities. It outscores 7 of 10 nearby cities.

Tigerton (this city)
79.3
Milwaukee
90.2
Madison
35.4
Racine
69.5
Kenosha
45.8
Wisconsin avg
65
City Profile

About Tigerton, WI

Wikipedia →

Tigerton is a village in Shawano County, Wisconsin, United States. The population was 708 at the 2020 census.

Economic Profile
$54,559
Median Income
$115,423
Median Home Value
$802/mo
Median Rent
7.9%
Unemployment
Community
47
Median Age
144
People / sq mi
25.4%
College Educated
72.1%
Homeownership
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Frequently asked questions

Is Tigerton, WI tap water safe to drink?

Tigerton's water quality earned a grade of B (79.3/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #271 out of 446 cities tested in Wisconsin.

What contaminants are in Tigerton's water?

Lead was measured at 0.9 ppb (90th percentile). 10 violations are on record.

How is Tigerton'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 Tigerton?

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

Where does Tigerton's water come from?

Tigerton's water is sourced from Groundwater. The city has 1 water system serving approximately 740 residents.

What health violations has Tigerton's water system had?

Tigerton has 1 health-based violation on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 7 violations remain unresolved.

Is Tigerton's groundwater at risk of contamination?

Tigerton 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 10 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 Tigerton's water compare to other cities?

Tigerton ranks #271 out of 446 cities in Wisconsin (better than 39% of state cities) and #8314 out of 15744 cities nationally (47th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Tigerton's small water system affect quality?

Tigerton's system serves approximately 740 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 10 violations on record.