D
49

Poor Water Quality

Hays, KS 67601

Ellis County · Population served: 22,261 · Data updated March 2026

Water Systems Serving This Area

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BUFFALO HILLS PARK
Groundwater · Pop. 135
PWSID: KS2005110
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HAYS, CITY OF
Groundwater · Pop. 21,040
PWSID: KS2005111
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ELLIS CO RWD 3
Groundwater · Pop. 200
PWSID: KS2005113
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HAYS SUBURBAN ESTATES
Groundwater · Pop. 38
PWSID: KS2005116
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COUNTRY VIEW MOBILE HOME PARK
Groundwater · Pop. 125
PWSID: KS2005121

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
4.4
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

4 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA10.7 pptNo standardUnregulated
6:2 FTS7.0 pptNo standardUnregulated
PFHxA6.1 pptNo standard400 pptUnregulated
PFBS3.8 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

70Total (5yr)
6Health-Based
36Major

Water Quality Summary

Understanding Your Water in Hays

Tap water quality in Hays, Kansas (67601) receives an overall grade of D (Poor) with a score of 49 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 26 points below the Kansas state average of 75. Compared to the national average (75), this area scores significantly lower. The area is served by 7 water systems providing water to approximately 22,261 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 4 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 70 violations, including 6 health-based violations.

Your Score 49/100 D
vs State 26 pts below Kansas avg (75)
vs National 26 pts below national avg (75)

What a Grade D Means

A score of 49/100 signals poor water quality in Hays, KS. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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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

Tap water in Hays, Kansas receives a grade of D (Poor) with a score of 49/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 67601 is served by 7 water systems using groundwater sources, providing water to approximately 22,261 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 4.4 ppb in Hays, Kansas. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

4 PFAS compounds were detected in water serving Hays, Kansas, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Hays, Kansas have received 70 violations in the last 5 years, including 6 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Hays, Kansas 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.