CITY REPORT PA

Mercer, PA: 6 Violations - Home Safety 81/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Mercer: B.

This ZIP has a few items worth a quick check.

Within Mercer, PA, the available records add up to an upper-tier grade; that grade describes records, not the water at a given faucet.

How Mercer Compares

Mercer81/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
B · 81
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$177K
Median Home Value
$500
Est. Remediation (0.3% of home value)

Mercer Water: The Quick Version

  • Your city's water systems recorded 6 violations since 2021.
  • Homes built before 1986: 68% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.

Water Systems Serving Mercer

Federal records list 2 water systems tied to Mercer, PA. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Mercer, Pennsylvania (population ~12,327), covering 2 community water systems serving approximately 49,600 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 Mercer: B (81/100)

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

Mercer water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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
Total organic carbon Disinfection Byproducts 4 1
Chlorine dioxide Disinfectant 2 1
Chlorite Disinfection Byproducts 2 1
Interim Enhanced Surface Water Treatment Rule Treatment Technique 2 1
Groundwater Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
16137 B 6 0 Aqua Pa Shenango Valley Wtp

All ZIP Codes in Mercer

  • 16137 [B] - 6 violations

Data Sources

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

Key Contaminants Detected in Mercer

Total organic carbon 4 violations
Disinfection Byproducts
Chlorine dioxide 2 violations
Disinfectant · EPA regulatory level for the contaminant named above: 0.8 mg/L
Chlorite 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 1 mg/L
Anemia in infants and young children

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

How Old Is Mercer's Housing Stock?

1974
Median Build Year
68%
Built Before 1986
39%
Built Before 1970
Copper
Likely Pipe Material

With 68% 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

By Census estimates, roughly half or more of the homes in Mercer were built before 1986; the median build year is 1974.

1974
Median Year Built
68%
Pre-1986 (lead solder era; lead paint banned 1978)
39%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (39%) 1970–1986 (29%) Post-1986 (32%)

Over half of homes in Mercer 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.

Mercer: Remediation Cost in Perspective

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

Median Home Value
$176,800
Est. Remediation
$500
Remediation as % of home value 0.3%

Estimated remediation costs in Mercer can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 17% below the Pennsylvania average.

Protecting Children from Lead in Mercer

68%
Homes Built Before 1986

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 Mercer

7
Total FEMA Flood Claims
$14,499
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Mercer contains 7 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $14,499. 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 $500 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.

Frequently Asked Questions

What does the Home Safety Score mean for Mercer, PA?
Mercer has an average Home Safety Score of 81/100 (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. 6 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 Mercer?
EPA records list 6 EPA violations for Mercer water systems. These water-system violations are shown for 1 mapped ZIP code.
How does Mercer compare to Pennsylvania average?
Mercer has an average Home Safety Score of 81/100, which is at or above the Pennsylvania state average of 57/100 for the same model series.
How many water systems serve Mercer?
Our records map 2 water systems to 1 ZIP code in Mercer. The related population figure in our data is approximately 12,327 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Mercer?
Estimated remediation cost per household in Mercer: $500; modeled range $300 to $800. 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). Mercer, PA: 6 Violations - Home Safety 81/100. https://zipcheckup.com/cities/pa/mercer/
BibTeX
@misc{zipcheckup-cities-pa-mercer,
  author = {{ZipCheckup}},
  title  = {{Mercer, PA: 6 Violations - Home Safety 81/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/mercer/}
}

Page version: October 2026.

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