A
90

US Water Score: A

Kohler, WI 53044

Sheboygan County · Population served: 4,596 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

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SHEBOYGAN TN WATERWORKS
Groundwater · Pop. 4,596
PWSID: WI4600403
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KOHLER WATERWORKS
Surface water · Pop. 2,271
PWSID: WI4600444

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
2.9
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

4 detected 1 above comparison value

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFHxS12.0 ppt10 ppt10 pptAbove comparison value
PFPeA4.4 pptNo standardNo federal MCL shown
PFBS4.2 ppt2000 ppt100 pptBelow comparison value
PFHxA3.2 pptNo standard400 pptNo federal MCL shown

Water Quality Summary

Understanding Your Water in Kohler

Tap water quality in Kohler, Wisconsin (53044) receives an overall grade of A (Lower record-based concern) with a score of 90 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 18 points above the Wisconsin state average of 72. Compared to the national average (75), this area performs significantly better. The area is served by 2 water systems providing water to approximately 4,596 people, using groundwater and surface water sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 90/100 A
vs State 18 pts above Wisconsin avg (72)
vs National 15 pts above national avg (75)

What a Grade A Means

A score of 90/100 means public water-system records for Kohler, WI show relatively few concerns in the US Water Score model. This is an internal score, not an EPA safety rating, and it does not guarantee conditions at any specific tap.

Groundwater: drawn from underground aquifers via wells
Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Based on public water-system records, Kohler, Wisconsin receives an internal US Water Score grade of A (Lower record-based concern) with a score of 90/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.

ZIP code 53044 is served by 2 water systems using groundwater, surface water sources, providing water to approximately 4,596 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was reported at 2.9 ppb in public-system records for Kohler, Wisconsin. This is below the currently applicable EPA action level of 15 ppb, but may be above more protective health guidance; EPA's future LCRI action level is 10 ppb. Household plumbing can materially change tap-level exposure, so consider certified filtration and individual tap testing, especially where children are present.

Yes — 4 PFAS compounds were detected in records associated with water serving Kohler, Wisconsin, and 1 result exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.

Water systems serving Kohler, Wisconsin have zero violations in the last 5 years. This is a positive indicator of consistent regulatory compliance and water quality management.

Based on detected contaminants (lead, PFAS), residents in Kohler, Wisconsin should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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