F
28

Failing Water Quality

Kennett Square, PA 19348

Chester County · Population served: 1,061,866 · Data updated March 2026

Water Systems Serving This Area

🏔
KENNETT SQUARE MUN WATER WORKS
Surface water · Pop. 6,328
PWSID: PA1150108
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LONGWOOD GARDENS
Surface water · Pop. 440
PWSID: PA1150131
🌊
STONE BARN RENTALS
Groundwater · Pop. 120
PWSID: PA1150204
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CHESTER WATER AUTHORITY
Surface water · Pop. 140,437
PWSID: PA1230004
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NORTH PENN WATER AUTHORITY
Surface water · Pop. 91,941
PWSID: PA1460034

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
10.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

24 detected 7 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA21.8 pptNo standardUnregulated
PFBA18.9 pptNo standard500 pptUnregulated
PFOA17.7 ppt4 ppt4 pptExceeded
PFHxA17.2 pptNo standard400 pptUnregulated
PFOS14.4 ppt4 ppt4 pptExceeded
PFPeA12.6 pptNo standardUnregulated
PFOA12.6 ppt4 ppt4 pptExceeded
PFNA12.0 ppt10 ppt10 pptExceeded

Violation History (Last 5 Years)

539Total (5yr)
5Health-Based
373Major

Water Quality Summary

Understanding Your Water in Kennett Square

Tap water quality in Kennett Square, Pennsylvania (19348) receives an overall grade of F (Failing) with a score of 28 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 35 points below the Pennsylvania state average of 63. Compared to the national average (75), this area scores significantly lower. The area is served by 6 water systems providing water to approximately 1,061,866 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 7 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 539 violations, including 5 health-based violations.

Your Score 28/100 F
vs State 35 pts below Pennsylvania avg (63)
vs National 47 pts below national avg (75)

What a Grade F Means

A score of 28/100 indicates serious water quality failures in Kennett Square, PA. The water system has significant violations, contaminant exceedances, or enforcement actions. Residents should strongly consider using a certified water filtration system for drinking and cooking water, requesting their utility's latest test results, and potentially having their water independently tested.

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 Kennett Square, Pennsylvania receives a grade of F (Failing) with a score of 28/100. 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 19348 is served by 6 water systems using surface water, groundwater sources, providing water to approximately 1,061,866 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 10.0 ppb in Kennett Square, Pennsylvania. 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.

Yes — 24 PFAS compounds were detected in water serving Kennett Square, Pennsylvania, and 7 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Kennett Square, Pennsylvania have received 539 violations in the last 5 years, including 5 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 Kennett Square, Pennsylvania 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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