CITY REPORT CT

East Lyme, CT: PFAS Found in Water - Home Safety 36/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for East Lyme: F.

Lowest grade in federal records; check your home directly.

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

On the A-F scale ZipCheckup uses, East Lyme, CT rates a D or an F.

How East Lyme Compares

East Lyme36/100
Connecticut avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
F · 36
Avg Safety Score
Zone 1
County Radon Potential (High)
$433K
Median Home Value
$500
Est. Remediation (0.1% of home value)

Key Facts for East Lyme Residents

  • Your city's water systems recorded 42 violations since 2021.
  • Homes built before 1986: 55% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.

East Lyme's Water Providers

Because water system records on this page are matched to East Lyme, CT through ZIP codes rather than street addresses, the single system in the list below reflects that matching, while federal data connect 1 to the area overall. Anyone unsure which utility supplies a home can check the water bill or contact the utility directly.

Overview

We track home safety data for 1 ZIP code in East Lyme, Connecticut (population ~7,323), covering 1 community water system serving approximately 15,245 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 East Lyme: F (36/100)

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

East Lyme water systems draw from: 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 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
1,2,4-Trichlorobenzene Organic 4 1
cis-1,2-Dichloroethylene Organic 4 1
Dichloromethane Organic 4 1
o-Dichlorobenzene Organic 4 1
p-Dichlorobenzene Organic 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
06333 F 42 0 East Lyme Water & Sewer Commission

All ZIP Codes in East Lyme

  • 06333 [F] - 42 violations

Data Sources

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

What's in East Lyme's Water?

1,2,4-Trichlorobenzene 4 violations
Organic
cis-1,2-Dichloroethylene 4 violations
Organic
Dichloromethane 4 violations
Organic

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

East Lyme Infrastructure Age

1987
Median Build Year
55%
Built Before 1986
28%
Built Before 1970
Copper
Likely Pipe Material

With 55% 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. East Lyme's median build year is 1987, 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.

1987
Median Year Built
55%
Pre-1986 (lead solder era; lead paint banned 1978)
28%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (28%) 1970–1986 (27%) Post-1986 (45%)

Over half of homes in East Lyme 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 East Lyme

Of the three cost-context tiers - low, moderate and elevated - East Lyme is in the low one.

Median Home Value
$432,600
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in East Lyme 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 6% above the Connecticut average.

East Lyme: Lead Risk & Vulnerable Populations

55%
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.

East Lyme: NFIP Claim Records and Water-Quality Context

74
Total FEMA Flood Claims
$12,351
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for East Lyme contains 74 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $12,351. 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 East Lyme

  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 1,2,4-Trichlorobenzene, listed in the water-quality records for East Lyme: 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 55% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for East Lyme, CT?
East Lyme has an average Home Safety Score of 36/100 (Grade F) 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. 42 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 East Lyme?
EPA records list 42 EPA violations for East Lyme water systems. These water-system violations are shown for 1 mapped ZIP code.
How does East Lyme compare to Connecticut average?
East Lyme has an average Home Safety Score of 36/100, which is below the Connecticut state average of 63/100 for the same model series.
How many water systems serve East Lyme?
Our records map 1 water system to 1 ZIP code in East Lyme. The related population figure in our data is approximately 7,323 people; it is not a count of people served citywide.
How much does it cost to fix water issues in East Lyme?
Estimated remediation cost per household in East Lyme: $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). East Lyme, CT: PFAS Found in Water - Home Safety 36/100. https://zipcheckup.com/cities/ct/east-lyme/
BibTeX
@misc{zipcheckup-cities-ct-east-lyme,
  author = {{ZipCheckup}},
  title  = {{East Lyme, CT: PFAS Found in Water - Home Safety 36/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ct/east-lyme/}
}

Page version: October 2026.

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