CITY REPORT PA HEALTH VIOLATIONS: 1

Kennett Square, PA: PFAS Found in Water - Home Safety 33/100

1 ZIP code · 4 water systems · Updated

ZipCheckup grade for Kennett Square: F.

Lowest grade in federal records; check your home directly.

Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →

A low grade for Kennett Square, PA is a reason to open the report for your ZIP code and see which factors pull the score down.

How Kennett Square Compares

Kennett Square33/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
F · 33
Avg Safety Score
Zone 1
County Radon Potential (High)
$518K
Median Home Value
$900
Est. Remediation (0.2% of home value)

Kennett Square Water: The Quick Version

  • Your city's water systems recorded 209 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0048 mg/L.
  • Homes built before 1986: 55% - older plumbing may contain lead solder.
  • Estimated remediation: $900 per household.

Water Systems Serving Kennett Square

The 3 largest of 4 systems connected with Kennett Square, PA are listed below.

Overview

We track home safety data for 1 ZIP code in Kennett Square, Pennsylvania (population ~23,435), covering 4 community water systems serving approximately 195,805 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Kennett Square: F (33/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Kennett Square water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0048 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Public Notice Rule Reporting 100 1
Groundwater Rule Treatment Technique 32 1
Nitrate Inorganic 12 1
Nitrite Inorganic 12 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 12 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
19348 F 209 1 Kennett Square Mun Water Works

All ZIP Codes in Kennett Square

  • 19348 [F] - 209 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Key Contaminants Detected in Kennett Square

Public Notice Rule 100 violations
Reporting
Groundwater Rule 32 violations
Treatment Technique
Nitrate 12 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Blue baby syndrome in infants

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Kennett Square's Housing Stock?

1988
Median Build Year
55%
Built Before 1986
36%
Built Before 1970
Copper
Likely Pipe Material

With 55% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Plumbing risk in older housing is tied to the period before 1986, when lead pipes and lead solder were still permitted in new plumbing. Kennett Square's median build year is 1988, and properties from before that year might still contain lead-bearing joints or pipes. Much of that risk sits inside individual properties, which city-level water quality averages don't capture.

1988
Median Year Built
55%
Pre-1986 (lead solder era; lead paint banned 1978)
36%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (36%) 1970–1986 (19%) Post-1986 (45%)

Over half of homes in Kennett Square were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Kennett Square: Remediation Cost in Perspective

Low tier for Kennett Square: remediation estimated at up to 1% of what homes are worth.

Median Home Value
$518,200
Est. Remediation
$900
Remediation as % of home value 0.2%

Estimated remediation costs in Kennett Square can be compared with local home values. The $550–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 143% above the Pennsylvania average.

Protecting Children from Lead in Kennett Square

55%
Homes Built Before 1986
0.0048
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Kennett Square

64
Total FEMA Flood Claims
$16,959
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Kennett Square contains 64 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,959. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $900 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Kennett Square

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Public Notice Rule, listed in the water-quality records for Kennett Square: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 55% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for Kennett Square, PA?
Kennett Square has an average Home Safety Score of 33/100 (Grade F) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 209 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Kennett Square?
EPA records list 209 EPA violations, including 1 health-based violation for Kennett Square water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Kennett Square water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Kennett Square is 0.0048 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Kennett Square compare to Pennsylvania average?
Kennett Square has an average Home Safety Score of 33/100, which is below the Pennsylvania state average of 57/100 for the same model series.
How many water systems serve Kennett Square?
Our records map 4 water systems to 1 ZIP code in Kennett Square. The related population figure in our data is approximately 23,435 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Kennett Square?
Estimated remediation cost per household in Kennett Square: $900; modeled range $550 to $1,400. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Kennett Square, PA: PFAS Found in Water - Home Safety 33/100. https://zipcheckup.com/cities/pa/kennett-square/
BibTeX
@misc{zipcheckup-cities-pa-kennett-square,
  author = {{ZipCheckup}},
  title  = {{Kennett Square, PA: PFAS Found in Water - Home Safety 33/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/kennett-square/}
}

Page version: October 2026.

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