CITY REPORT PA 1 HEALTH VIOLATIONS

Willow Grove, PA: 1 Health Violation - Home Safety 33/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Willow Grove: F.

Federal data flags serious home-safety risks for this ZIP.

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

Water compliance in Willow Grove, PA ranks below average - documented gaps in multiple service areas.

How Willow Grove Compares

Willow Grove33/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
F · 33
Avg Safety Score
Zone 1
Radon Risk (High)
$338K
Median Home Value
$3,600
Est. Remediation (1.1% of home value)

Willow Grove Water: The Quick Version

  • Your city's water systems recorded 101 violations in the past 5 years.
  • Average lead level: 0.0016 mg/L.
  • Homes built before 1986: 92% - older plumbing may contain lead solder.
  • Estimated remediation: $3,600 per household.

Water Systems Serving Willow Grove

Residential water in Willow Grove, PA is supplied by 3 separate utilities - not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 3 water systems in the area, with these providers collectively accounting for the dominant share of household connections.

Overview

We track home safety data for 1 ZIP code in Willow Grove, Pennsylvania (population ~19,926), covering 3 community water systems serving approximately 907,997 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 Willow Grove: 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

Willow Grove water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0016 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)

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
Contaminant 0700 Other 14 1
E. coli Microbiological 6 1
Barium Inorganic 4 1
Contaminant 1009 Other 4 1
Cadmium Inorganic 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
19090 F 101 1 Aqua Pa Main System

All ZIP Codes in Willow Grove

  • 19090 [F] - 101 violations ⚠

Data Sources

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

Key Contaminants Detected in Willow Grove

Contaminant 0700 14 violations
Other
E. coli 6 violations
Microbiological
Gastrointestinal illness, potentially fatal
Barium 4 violations
Inorganic · EPA limit: 2 mg/L
Increased blood pressure

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

How Old Is Willow Grove's Housing Stock?

1951
Median Build Year
92%
Built Before 1986
52%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 92% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1951 places Willow Grove's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era - and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1951
Median Year Built
92%
Pre-1986 (Lead Paint Risk)
52%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (52%) 1970–1986 (40%) Post-1986 (8%)

Over half of homes in Willow Grove were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Willow Grove: Remediation Cost in Perspective

At current valuations, Willow Grove falls in the moderate remediation-share tier - a level where treating this as a budgeted line item rather than an ad-hoc expense is the practical approach.

Median Home Value
$338,000
Est. Remediation
$3,600
Remediation as % of home value 1.1%

Remediation costs are moderate relative to home values in Willow Grove. The estimated $2,400–$4,800 range is manageable for most homeowners but still worth budgeting for. Home values are 58% above the Pennsylvania average.

Protecting Children from Lead in Willow Grove

92%
Homes Built Before 1986
0.0016
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.

Households with kids in the home - for whom CDC guidance places particular weight on minimizing exposure - face a specific local picture in Willow Grove. 92% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.

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

Historical Flood-Claim Evidence for Willow Grove

49
Total FEMA Flood Claims
$27,322
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Willow Grove contains 49 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $27,322. 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>$3,600</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 Willow Grove

  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. Filters rated for Contaminant 0700 can reduce the most common contaminant found in Willow Grove's water.
  3. Check your home's plumbing. With 92% of homes built before 1986, lead solder is a real possibility.
  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 Willow Grove, PA?
Willow Grove has an average Home Safety Score of 33/100 (Grade F) 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. 101 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Willow Grove have?
Willow Grove water systems have a total of 101 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Willow Grove water have lead?
The average 90th-percentile lead level in Willow Grove is 0.0016 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 Willow Grove compare to Pennsylvania average?
Willow Grove 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 Willow Grove?
Willow Grove is served by 3 public water systems across 1 ZIP code, serving approximately 19,926 people.
How much does it cost to fix water issues in Willow Grove?
Estimated remediation costs in Willow Grove average $3,600 per household, ranging from $2,400 to $4,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesPennsylvania → Willow Grove, PA

How to cite this page

APA ZipCheckup. (2026). Willow Grove, PA: 1 Health Violation - Home Safety 33/100. https://zipcheckup.com/cities/pa/willow-grove/
BibTeX
@misc{zipcheckup-cities-pa-willow-grove,
  author = {{ZipCheckup}},
  title  = {{Willow Grove, PA: 1 Health Violation - Home Safety 33/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/willow-grove/}
}

Page version: August 2026.

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