CITY REPORT PA

Lemont, PA: PFAS Found in Water - Home Safety 57/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Lemont: C.

A mixed picture - some signals here are worth your attention.

Available records for Lemont give it a middle-tier grade in PA; water systems can differ, so check the one that serves your home.

How Lemont Compares

Lemont57/100
Pennsylvania avg57/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
C · 57
Avg Safety Score
Zone 1
County Radon Potential (High)
$367K
Median Home Value
$500
Est. Remediation (0.1% of home value)

Key Facts for Lemont Residents

  • Your city's water systems recorded 29 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0037 mg/L.
  • Homes built before 1986: 57% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.

Lemont's Water Providers

Counting every public water system linked to Lemont, PA in federal data gives 2. The list below keeps the 2 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 1 ZIP code in Lemont, Pennsylvania (population ~993), covering 2 community water systems serving approximately 78,000 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 Lemont: C (57/100)

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

Lemont water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0037 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 1.

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
Groundwater Rule Treatment Technique 6 1
Revised Total Coliform Rule Microbiological 4 1
Cyanide Inorganic 2 1
1,2,4-Trichlorobenzene Organic 2 1
cis-1,2-Dichloroethylene Organic 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
16851 C 29 0 College Twp Water Authority

All ZIP Codes in Lemont

  • 16851 [C] - 29 violations

Data Sources

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

What's in Lemont's Water?

Groundwater Rule 6 violations
Treatment Technique
Revised Total Coliform Rule 4 violations
Microbiological
Indicates possible bacterial contamination
Cyanide 2 violations
Inorganic · EPA regulatory level for the contaminant named above: 0.2 mg/L

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

Lemont Infrastructure Age

1965
Median Build Year
57%
Built Before 1986
54%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 57% 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

Median construction year in Lemont: 1965, set against the 1986 federal lead limits for new plumbing.

1965
Median Year Built
57%
Pre-1986 (lead solder era; lead paint banned 1978)
54%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (54%) 1970–1986 (3%) Post-1986 (43%)

Over half of homes in Lemont 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.

How Remediation Costs Compare in Lemont

Compared with typical property prices, the remediation estimate for Lemont is small in percentage terms - at or under one percent.

Median Home Value
$367,100
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Lemont 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 72% above the Pennsylvania average.

Lemont: Lead Risk & Vulnerable Populations

57%
Homes Built Before 1986
0.0037
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.

Lemont: NFIP Claim Records and Water-Quality Context

3
Total FEMA Flood Claims
$10,570
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Lemont contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,570. 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.

What You Can Do in Lemont

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Groundwater Rule, listed in the water-quality records for Lemont: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 57% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Lemont, PA?
Lemont has an average Home Safety Score of 57/100 (Grade C) 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. 29 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 Lemont?
EPA records list 29 EPA violations for Lemont water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Lemont water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Lemont is 0.0037 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 Lemont compare to Pennsylvania average?
Lemont has an average Home Safety Score of 57/100, which is at or above the Pennsylvania state average of 57/100 for the same model series.
How many water systems serve Lemont?
Our records map 2 water systems to 1 ZIP code in Lemont. The related population figure in our data is approximately 993 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Lemont?
Estimated remediation cost per household in Lemont: $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). Lemont, PA: PFAS Found in Water - Home Safety 57/100. https://zipcheckup.com/cities/pa/lemont/
BibTeX
@misc{zipcheckup-cities-pa-lemont,
  author = {{ZipCheckup}},
  title  = {{Lemont, PA: PFAS Found in Water - Home Safety 57/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/pa/lemont/}
}

Page version: October 2026.

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