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Kansas Tap Water Quality Report

Water quality grades, lead levels, and violation data for all 749 ZIP codes in Kansas

ZIP Codes

749

Health Violations (5yr)

844

Avg Safety Score

64.2/100

High Lead Risk ZIPs

73%

Overview: Drinking Water in Kansas

The tap water quality in Kansas currently sits near the national average, registering a composite safety score of 64.2/100 across 749 monitored ZIP codes. While a significant portion of the state maintains adequate water quality and full compliance with federal standards, 2% of ZIP codes in Kansas have received a failing grade due to recent compliance issues. Monitoring data from the EPA indicates that while the majority of residents receive safe tap water, localized issues remain a challenge for several municipal systems.

The state's water infrastructure has experienced significant compliance hurdles recently, logging a staggering 844 health-based violations over the past 5-year monitoring window out of 3,375 total violations. When a state registers this volume of health-based violations, it often points to systemic challenges such as aging distribution networks, agricultural runoff affecting groundwater, or underfunded rural water systems. Kansas Department of Health and Environment is responsible for enforcing corrective actions and penalizing systems that repeatedly fail to meet safe drinking water standards.

One of the most pressing concerns for Kansas residents is the elevated risk of lead exposure. EPA models and historical monitoring indicate that 73% of ZIP codes in Kansas are classified as High or Very High risk for lead. This is frequently associated with older housing stock built before the 1986 federal ban on lead pipes and solder. Residents living in older homes should strongly consider having their tap water independently tested and utilizing a certified NSF/ANSI 53 water filter for drinking and cooking.

Surface Water

51.5%

of ZIP codes

Total Violations

3,375

5-year record

Grade A ZIPs

1

0% of state

Grade F ZIPs

16

2% of state

Water Quality Grade Distribution in Kansas

How do Kansas's 749 ZIP codes stack up by water quality grade?

A
1 ZIP codes0%
B
246 ZIP codes33%
C
320 ZIP codes43%
D
166 ZIP codes22%
F
16 ZIP codes2%

Common Drinking Water Contaminants in Kansas

The following are common regulated contaminants found in Kansas drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.

Total Trihalomethanes (TTHM)Consumer Confidence Report RuleHaloacetic Acids (HAA5)LeadContaminant 0700Fecal ColiformChloriteGross Beta

Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.

Frequently Asked Questions โ€” Kansas Drinking Water

Is tap water generally safe to drink in Kansas?+
Yes, for the majority of residents, tap water in Kansas is treated, heavily regulated, and safe to drink. However, safety varies significantly by location. Statewide, 1 ZIP codes earn an "A" grade for perfect compliance, while 16 earn an "F" due to historical violations. It is essential to search your specific ZIP code above to view the exact compliance record for your local water utility.
What are the biggest water quality issues in Kansas?+
Based on a 5-year analysis of EPA violation data, the primary water quality challenges in Kansas include managing 844 health-based violations statewide and addressing infrastructure age. Additionally, 73% of ZIP codes in the state are rated as having a High or Very High probability of lead exposure risk, which is a key metric residents should monitor.
Who regulates and enforces drinking water standards in Kansas?+
Drinking water in Kansas is primarily regulated by Kansas Department of Health and Environment under a primacy agreement with the U.S. Environmental Protection Agency (EPA). The EPA sets the federal baseline standards (Maximum Contaminant Levels) through the Safe Drinking Water Act, while Kansas Department of Health and Environment conducts the day-to-day monitoring, issues compliance orders, and enforces penalties against local water systems that fail to meet these standards.
Where does Kansas get its drinking water?+
Water sources in Kansas vary widely by municipality. Statewide, approximately 51.5% of the monitored ZIP codes rely on surface water sources (such as rivers, lakes, and reservoirs), which require extensive filtration and disinfection. The remaining systems primarily rely on groundwater pumped from underground aquifers, which is naturally filtered but can be susceptible to agricultural runoff or naturally occurring minerals.
How do I find the official water quality report for my home in Kansas?+
You can enter your ZIP code in our search box above for a detailed, easy-to-read report based on EPA data. Furthermore, your local water utility is required by federal law to distribute an annual Consumer Confidence Report (CCR) by July 1 of each year. You can contact your utility directly to request this document, which outlines exact contaminant measurements from the previous year.
View All 749 ZIP Codes in Kansas

Browse EPA water quality data for every monitored ZIP code. For faster results, use the search bar above.

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+ 449 more ZIP codes โ€” please search by city above