C
69

US Water Score: C

Chester Springs, PA 19425

Chester County · Population served: 48,600 · 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

🏔
AQUA PA WEST CHESTER
Surface water · Pop. 48,600
PWSID: PA1150098
🏔
AQUA PA UWCHLAN
Surface water · Pop. 35,518
PWSID: PA1150035

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
2.21
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

6 detected 2 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
PFOA9.3 ppt4 ppt4 pptAbove comparison value
PFPeA7.7 pptNo standardNo federal MCL shown
PFHxA7.2 pptNo standard400 pptNo federal MCL shown
PFOS7.1 ppt4 ppt4 pptAbove comparison value
PFBA5.7 pptNo standard500 pptNo federal MCL shown
PFBS5.1 ppt2000 ppt100 pptBelow comparison value

Violation History (Last 5 Years)

30Total (5yr)
0Health-Based
30Major

Water Quality Summary

Understanding Your Water in Chester Springs

Tap water quality in Chester Springs, Pennsylvania (19425) receives an overall grade of C (Mixed record-based signals) with a score of 69 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Pennsylvania state average of 64. The area is served by 2 water systems providing water to approximately 48,600 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. Notably, 2 PFAS compounds exceed the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. The area has 30 violations over the past 5 years, though none were classified as health-based.

Your Score 69/100 C
vs State 5 pts above Pennsylvania avg (64)
vs National 6 pts below national avg (75)

What a Grade C Means

A score of 69/100 indicates fair performance in the US Water Score model for Chester Springs, PA. The records show noteworthy concerns, such as elevated contaminant levels, violation history, or both. Review the detailed contaminant data and official utility reports before making decisions.

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

Chester Springs, Pennsylvania receives an internal US Water Score grade of C (Fair) with a score of 69/100. Our model found some system-level concerns, such as violation history or elevated contaminant levels. Review your utility's Consumer Confidence Report and consult a qualified professional for household-specific health questions.

ZIP code 19425 is served by 2 water systems using surface water sources, providing water to approximately 48,600 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead was reported at 2.21 ppb in public-system records for Chester Springs, Pennsylvania. 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 — 6 PFAS compounds were detected in records associated with water serving Chester Springs, Pennsylvania, and 2 results 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 Chester Springs, Pennsylvania have received 30 violations in the last 5 years. 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 Chester Springs, 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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