CITY REPORT CT

Old Saybrook, CT: High Radon Risk - Home Safety 50/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Old Saybrook: D.

Several federal signals point to home-safety risks in this ZIP.

Water compliance in Old Saybrook, CT ranks below average - documented gaps in multiple service areas.

How Old Saybrook Compares

Old Saybrook50/100
Connecticut avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
D · 50
Avg Safety Score
Zone 1
Radon Risk (High)
$479K
Median Home Value
$3,000
Est. Remediation (0.6% of home value)

Old Saybrook Water: The Quick Version

  • Homes built before 1986: 78% - older plumbing may contain lead solder.
  • Estimated remediation: $3,000 per household.

Water Systems Serving Old Saybrook

Most residential addresses in Old Saybrook, CT are served by a single water utility - the dominant system among the 1 provider tracked in federal data.

Overview

We track home safety data for 1 ZIP code in Old Saybrook, Connecticut (population ~10,515), covering 1 community water system serving approximately 33,975 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Old Saybrook: D (50/100)

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

Old Saybrook 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.

Areas with No Violations

ZIP Code Safety Score System Population
06475 D Ctwc - Shoreline Region-guilford System 33,975

All ZIP Codes in Old Saybrook

Data Sources

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

How Old Is Old Saybrook's Housing Stock?

1963
Median Build Year
78%
Built Before 1986
41%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 78% 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

What does a median build year of 1963 mean for water safety in Old Saybrook? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.

1963
Median Year Built
78%
Pre-1986 (Lead Paint Risk)
41%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (41%) 1970–1986 (37%) Post-1986 (22%)

Over half of homes in Old Saybrook 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.

Old Saybrook: Remediation Cost in Perspective

Remediation costs in Old Saybrook are small relative to typical property values - the cost-to-value ratio here is favorable.

Median Home Value
$479,100
Est. Remediation
$3,000
Remediation as % of home value 0.6%

Remediation costs in Old Saybrook are relatively low compared to home values. The $2,000–$4,100 estimated range is a small fraction of median property value. Home values are 17% above the Connecticut average.

Protecting Children from Lead in Old Saybrook

78%
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.

Pulling a tap sample fills the gap that utility data cannot close, particularly here where 78% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Old Saybrook.

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

Historical Flood-Claim Evidence for Old Saybrook

789
Total FEMA Flood Claims
$24,739
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Old Saybrook contains 789 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $24,739. 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>$3,000</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 Old Saybrook

  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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. With 78% 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 Old Saybrook, CT?
Old Saybrook has an average Home Safety Score of 50/100 (Grade D) 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. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
How does Old Saybrook compare to Connecticut average?
Old Saybrook has an average Home Safety Score of 50/100, which is below the Connecticut state average of 63/100 for the same model series.
How many water systems serve Old Saybrook?
Old Saybrook is served by 1 public water system across 1 ZIP code, serving approximately 10,515 people.
How much does it cost to fix water issues in Old Saybrook?
Estimated remediation costs in Old Saybrook average $3,000 per household, ranging from $2,000 to $4,100. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesConnecticut → Old Saybrook, CT

How to cite this page

APA ZipCheckup. (2026). Old Saybrook, CT: High Radon Risk - Home Safety 50/100. https://zipcheckup.com/cities/ct/old-saybrook/
BibTeX
@misc{zipcheckup-cities-ct-old-saybrook,
  author = {{ZipCheckup}},
  title  = {{Old Saybrook, CT: High Radon Risk - Home Safety 50/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ct/old-saybrook/}
}

Page version: August 2026.

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