CITY REPORT NY

Cold Spring Harbor, NY: 28 Violations - Home Safety 83/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Cold Spring Harbor: B.

This ZIP has a few items worth a quick check.

Cold Spring Harbor, NY: a top-two-band grade.

How Cold Spring Harbor Compares

Cold Spring Harbor83/100
New York avg84/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
B · 83
Avg Safety Score
Zone 3
County Radon Potential (Low)
$1.6M
Median Home Value
$600
Est. Remediation (0.0% of home value)

Cold Spring Harbor Water: The Quick Version

  • Your city's water systems recorded 28 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0013 mg/L.
  • Homes built before 1986: 84% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.13.

Water Systems Serving Cold Spring Harbor

Multiple utilities show up for Cold Spring Harbor, NY: 2 are listed here out of 2 tracked federally.

Overview

We track home safety data for 1 ZIP code in Cold Spring Harbor, New York (population ~2,956), covering 2 community water systems serving approximately 1,181,760 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 Cold Spring Harbor: B (83/100)

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

Cold Spring Harbor water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0013 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 3.

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
Endrin Organic 2 1
BHC-gamma (Lindane) Organic 2 1
Methoxychlor Organic 2 1
Toxaphene Organic 2 1
Dalapon Organic 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
11724 B 28 0 Suffolk County Water Authority

All ZIP Codes in Cold Spring Harbor

  • 11724 [B] - 28 violations

Data Sources

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

CDC Health Data for Cold Spring Harbor

10.2%
Asthma (US: 9.8%)
10%
Diabetes (US: 10.4%)
14.4%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.2% ↑
Diabetes 10% ↓
Mental Health 14.4% ↓

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Cold Spring Harbor

Endrin 2 violations
Organic
BHC-gamma (Lindane) 2 violations
Organic
Methoxychlor 2 violations
Organic

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

How Old Is Cold Spring Harbor's Housing Stock?

1952
Median Build Year
84%
Built Before 1986
71%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 84% 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

Ask the water utility whether your address in Cold Spring Harbor has a lead service line; its inventory can answer what a median build year of 1952 cannot.

1952
Median Year Built
84%
Pre-1986 (lead solder era; lead paint banned 1978)
71%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (71%) 1970–1986 (13%) Post-1986 (16%)

Over half of homes in Cold Spring Harbor 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.

Cold Spring Harbor: Remediation Cost in Perspective

Relative to home values, Cold Spring Harbor remediation estimates run low.

Median Home Value
$1.6M
Est. Remediation
$600
Remediation as % of home value 0.0%

Estimated remediation costs in Cold Spring Harbor can be compared with local home values. The $400–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 334% above the New York average.

Protecting Children from Lead in Cold Spring Harbor

84%
Homes Built Before 1986
0.0013
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.

Historical Flood-Claim Evidence for Cold Spring Harbor

18
Total FEMA Flood Claims
$13,223
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Cold Spring Harbor contains 18 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,223. Among ZIP codes with claim records, 0% 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 $600 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.

Deep Dive Reports

Detailed analysis for Cold Spring Harbor, NY

Frequently Asked Questions

What does the Home Safety Score mean for Cold Spring Harbor, NY?
Cold Spring Harbor has an average Home Safety Score of 83/100 (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. 28 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 Cold Spring Harbor?
EPA records list 28 EPA violations for Cold Spring Harbor water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Cold Spring Harbor water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Cold Spring Harbor is 0.0013 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 Cold Spring Harbor compare to New York average?
Cold Spring Harbor has an average Home Safety Score of 83/100, which is below the New York state average of 84/100 for the same model series.
How many water systems serve Cold Spring Harbor?
Our records map 2 water systems to 1 ZIP code in Cold Spring Harbor. The related population figure in our data is approximately 2,956 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Cold Spring Harbor?
Estimated remediation cost per household in Cold Spring Harbor: $600; modeled range $400 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). Cold Spring Harbor, NY: 28 Violations - Home Safety 83/100. https://zipcheckup.com/cities/ny/cold-spring-harbor/
BibTeX 
@misc{zipcheckup-cities-ny-cold-spring-harbor,
  author = {{ZipCheckup}},
  title  = {{Cold Spring Harbor, NY: 28 Violations - Home Safety 83/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ny/cold-spring-harbor/}
}

Page version: October 2026.

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