CITY REPORT PA

Harleysville, PA: High Radon Risk - Home Safety 50/100

2 ZIP codes · 1 water system · Updated

ZipCheckup grade for Harleysville: D.

Several federal signals point to home-safety risks in this ZIP.

Harleysville, PA: water systems collectively below average - violations documented.

How Harleysville Compares

Harleysville50/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
1
Water Systems
0
ZIPs with Violations
D · 50
Avg Safety Score
Zone 1
Radon Risk (High)
$455K
Median Home Value
$2,100
Est. Remediation (0.5% of home value)

Key Facts for Harleysville Residents

  • Average lead level: 0.0005 mg/L.
  • Estimated remediation: $2,100 per household.

Harleysville's Water Providers

Because residential water in Harleysville, PA flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.

Overview

We track home safety data for 2 ZIP codes in Harleysville, Pennsylvania (population ~25,184), covering 1 community water system serving approximately 91,941 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Harleysville: D (50/100)

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

Harleysville water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0005 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

Dominant radon zone: Zone 1 (High Risk)

  • Zone 1 (High): 2 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

ZIP Code Safety Score System Population
19438 D North Penn Water Authority 91,941

All ZIP Codes in Harleysville

Data Sources

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

How Remediation Costs Compare in Harleysville

While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Harleysville is notably favorable - the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.

Median Home Value
$455,100
Est. Remediation
$2,100
Remediation as % of home value 0.5%

Remediation costs in Harleysville are relatively low compared to home values. The $1,400–$2,800 estimated range is a small fraction of median property value. Home values are 113% above the Pennsylvania average.

Harleysville: Lead Risk & Vulnerable Populations

0.0005
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Lead risk in Harleysville appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Harleysville: NFIP Claim Records and Water-Quality Context

47
Total FEMA Flood Claims
$20,860
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Harleysville contains 47 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $20,860. 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 <strong>$2,100</strong> 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 Harleysville

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
  4. Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for Harleysville, PA?
Harleysville has an average Home Safety Score of 50/100 (Grade D) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Harleysville water have lead?
The average 90th-percentile lead level in Harleysville is 0.0005 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Harleysville compare to Pennsylvania average?
Harleysville has an average Home Safety Score of 50/100, which is below the Pennsylvania state average of 57/100 for the same model series.
How many water systems serve Harleysville?
Harleysville is served by 1 public water system across 2 ZIP codes, serving approximately 25,184 people.
How much does it cost to fix water issues in Harleysville?
Estimated remediation costs in Harleysville average $2,100 per household, ranging from $1,400 to $2,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesPennsylvania → Harleysville, PA

How to cite this page

APA ZipCheckup. (2026). Harleysville, PA: High Radon Risk - Home Safety 50/100. https://zipcheckup.com/cities/pa/harleysville/
BibTeX
@misc{zipcheckup-cities-pa-harleysville,
  author = {{ZipCheckup}},
  title  = {{Harleysville, PA: High Radon Risk - Home Safety 50/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/harleysville/}
}

Page version: August 2026.

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