D
43

Poor Water Quality

Zionsville, IN 46077

Boone County · Population served: 947,925 · Data updated March 2026

Water Systems Serving This Area

🌊
ZIONSVILLE MHP TRUST
Groundwater · Pop. 57
PWSID: IN5206002
🏔
WHITESTOWN SOUTH
Surface water · Pop. 5,880
PWSID: IN5206014
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CITIZENS WATER OF WESTFIELD, LLC
Groundwater · Pop. 61,493
PWSID: IN5229009
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THE OAKS OF KOKOMO
Groundwater · Pop. 150
PWSID: IN5234001
🏔
CITIZENS WATER - INDIANAPOLIS
Surface water · Pop. 880,345
PWSID: IN5249004

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
8.1
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

7 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA7.6 pptNo standardUnregulated
PFBA5.7 pptNo standard500 pptUnregulated
PFBA5.6 pptNo standard500 pptUnregulated
PFHxA5.1 pptNo standard400 pptUnregulated
PFPeA5.0 pptNo standardUnregulated
PFHxA4.0 pptNo standard400 pptUnregulated
PFBS4.0 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

202Total (5yr)
4Health-Based
52Major

Water Quality Summary

Understanding Your Water in Zionsville

Tap water quality in Zionsville, Indiana (46077) receives an overall grade of D (Poor) with a score of 43 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 36 points below the Indiana state average of 79. Compared to the national average (75), this area scores significantly lower. The area is served by 5 water systems providing water to approximately 947,925 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 7 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 202 violations, including 4 health-based violations.

Your Score 43/100 D
vs State 36 pts below Indiana avg (79)
vs National 32 pts below national avg (75)

What a Grade D Means

A score of 43/100 signals poor water quality in Zionsville, IN. 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.

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

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

Tap water in Zionsville, Indiana receives a grade of D (Poor) with a score of 43/100. 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 46077 is served by 5 water systems using surface water, groundwater sources, providing water to approximately 947,925 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 8.1 ppb in Zionsville, Indiana. 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.

7 PFAS compounds were detected in water serving Zionsville, Indiana, 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 Zionsville, Indiana have received 202 violations in the last 5 years, including 4 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 Zionsville, Indiana 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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