CITY REPORT PA

Allison, PA: 10 Violations - Home Safety 80/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Allison: B.

This ZIP has a few items worth a quick check.

Based on available records, Allison, PA holds an A or B ZipCheckup grade.

How Allison Compares

Allison80/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
B · 80
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$34K
Median Home Value

Key Facts for Allison Residents

  • Your city's water systems recorded 10 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.002 mg/L.
  • Homes built before 1986: 95% - older plumbing may contain lead solder.

Allison's Water Providers

Service in Allison, PA can differ by address: 2 water systems are tied to the area in federal records, and the 2 largest are listed with their violation records.

Overview

We track home safety data for 1 ZIP code in Allison, Pennsylvania (population ~456), covering 2 community water systems serving approximately 48,044 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. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Allison: B (80/100)

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

Allison water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0020 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 2.

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
Haloacetic Acids (HAA5) Disinfection Byproducts 6 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 6 1
Asbestos Inorganic 2 1
Gross Alpha (excl. radon and uranium) Radionuclides 2 1
Public Notice Rule Reporting 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
15413 B 10 0 Pa-american Water-brownsville

All ZIP Codes in Allison

  • 15413 [B] - 10 violations

Data Sources

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

What's in Allison's Water?

Haloacetic Acids (HAA5) 6 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 6 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL
Asbestos 2 violations
Inorganic · EPA regulatory level for the contaminant named above: 7 MFL

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

Allison Infrastructure Age

1901
Median Build Year
95%
Built Before 1986
83%
Built Before 1970
Galvanized Steel or Lead
Likely Pipe Material

With 95% 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. Allison's median build year is 1901, 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.

1901
Median Year Built
95%
Pre-1986 (lead solder era; lead paint banned 1978)
83%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (83%) 1970–1986 (12%) Post-1986 (5%)

Over half of homes in Allison 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.

Allison: Lead Risk & Vulnerable Populations

95%
Homes Built Before 1986
0.002
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.

Frequently Asked Questions

What does the Home Safety Score mean for Allison, PA?
Allison has an average Home Safety Score of 80/100 (Grade B) 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. 10 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 Allison?
EPA records list 10 EPA violations for Allison water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Allison water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Allison is 0.002 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 Allison compare to Pennsylvania average?
Allison has an average Home Safety Score of 80/100, which is at or above the Pennsylvania state average of 57/100 for the same model series.
How many water systems serve Allison?
Our records map 2 water systems to 1 ZIP code in Allison. The related population figure in our data is approximately 456 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Allison, PA: 10 Violations - Home Safety 80/100. https://zipcheckup.com/cities/pa/allison/
BibTeX
@misc{zipcheckup-cities-pa-allison,
  author = {{ZipCheckup}},
  title  = {{Allison, PA: 10 Violations - Home Safety 80/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/allison/}
}

Page version: October 2026.

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