CITY REPORT PA 1 HEALTH VIOLATIONS

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

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Horsham: 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 →

State safety rankings put Horsham, PA near the lower tier - below-average compliance on record.

How Horsham Compares

Horsham33/100
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)
$373K
Median Home Value
$3,600
Est. Remediation (1.0% of home value)

Key Facts for Horsham Residents

  • Your city's water systems recorded 190 violations in the past 5 years.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $3,600 per household.

Horsham's Water Providers

Throughout Horsham, PA, water comes from one of 3 primary utilities out of 3 total systems - independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.

Overview

We track home safety data for 1 ZIP code in Horsham, Pennsylvania (population ~17,134), covering 3 community water systems serving approximately 861,501 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 Horsham: 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

Horsham water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 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 2005 Other 8 1
Contaminant 2010 Other 8 1
Contaminant 2015 Other 8 1
Contaminant 2020 Other 8 1
Contaminant 2031 Other 8 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
19044 F 190 1 Horsham Water&sewer Authority

All ZIP Codes in Horsham

  • 19044 [F] - 190 violations ⚠

Data Sources

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

What's in Horsham's Water?

Contaminant 2005 8 violations
Other
Contaminant 2010 8 violations
Other
Contaminant 2015 8 violations
Other

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

Horsham Infrastructure Age

1970
Median Build Year
73%
Built Before 1986
14%
Built Before 1970
Copper
Likely Pipe Material

With 73% 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

The median home in Horsham was built in 1970 - a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.

1970
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
14%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (14%) 1970–1986 (59%) Post-1986 (27%)

Over half of homes in Horsham 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.

How Remediation Costs Compare in Horsham

In Horsham, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$372,900
Est. Remediation
$3,600
Remediation as % of home value 1.0%

Remediation costs in Horsham are relatively low compared to home values. The $2,400–$4,800 estimated range is a small fraction of median property value. Home values are 75% above the Pennsylvania average.

Horsham: Lead Risk & Vulnerable Populations

73%
Homes Built Before 1986

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.

Confirming what arrives at a specific faucet is something utility-side averages cannot do. With 73% of Horsham stock built before the lead-solder ban and citywide monitoring at or beyond the regulatory mark, a tap-level kit fits the standard diligence picture.

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

Horsham: NFIP Claim Records and Water-Quality Context

72
Total FEMA Flood Claims
$25,331
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Horsham contains 72 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $25,331. Among ZIP codes with claim records, 100% 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 Horsham

  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 2005 can reduce the most common contaminant found in Horsham's water.
  3. Check your home's plumbing. With 73% 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 Horsham, PA?
Horsham 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. 190 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Horsham have?
Horsham water systems have a total of 190 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
How does Horsham compare to Pennsylvania average?
Horsham 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 Horsham?
Horsham is served by 3 public water systems across 1 ZIP code, serving approximately 17,134 people.
How much does it cost to fix water issues in Horsham?
Estimated remediation costs in Horsham average $3,600 per household, ranging from $2,400 to $4,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesPennsylvania → Horsham, PA

How to cite this page

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

Page version: August 2026.

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