CITY REPORT NY 3 HEALTH VIOLATIONS

Uniondale, NY: 3 Health Violations - Home Safety 81/100

3 ZIP codes · 3 water systems · Updated

ZipCheckup grade for Uniondale: B.

This ZIP looks solid, with a few items worth a quick check.

For households in Uniondale, NY water data shows a consistently above-average safety picture.

How Uniondale Compares

Uniondale81/100
New York avg84/100
National avg73/100

Data: EPA SDWIS

3
ZIP Codes
3
Water Systems
1
ZIPs with Violations
B · 81
Avg Safety Score
Zone 3
Radon Risk (Low)
$486K
Median Home Value
$1,800
Est. Remediation (0.4% of home value)

Uniondale Water: The Quick Version

  • Your city's water systems recorded 4 violations in the past 5 years.
  • Average lead level: 0.001 mg/L.
  • Estimated remediation: $1,800 per household.
  • CDC health risk index: 10.69.

Water Systems Serving Uniondale

Water service in Uniondale, NY is split across 3 utilities out of 3 tracked federally, each operating its own infrastructure and compliance record.

Overview

We track home safety data for 3 ZIP codes in Uniondale, New York (population ~28,344), covering 3 community water systems serving approximately 301,000 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.

1 of 2 ZIP codes with a reported violation count in the available EPA record (50%) have recorded EPA violations. 3 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Uniondale: 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

Uniondale water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

  • Zone 1 (High): 0 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 3 ZIP codes

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 1 DBP Rule Treatment Technique 6 1
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
11553 B 4 3 Town of Hempstead Water Department

Areas with No Violations

ZIP Code Safety Score System Population
11556 Town of Hempstead Water Department 110,000

All ZIP Codes in Uniondale

Data Sources

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

CDC Health Data for Uniondale

9.6%
Asthma (US: 9.8%)
10.1%
Diabetes (US: 10.4%)
13.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.6% ↓
Diabetes 10.1% ↓
Mental Health 13.2% ↓

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Uniondale

Stage 1 DBP Rule 6 violations
Treatment Technique
Disinfection byproduct exposure risk
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk

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

Uniondale: Remediation Cost in Perspective

How much of a Uniondale home's value does documented remediation represent? A small fraction - the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.

Median Home Value
$486,100
Est. Remediation
$1,800
Remediation as % of home value 0.4%

Remediation costs in Uniondale are relatively low compared to home values. The $1,200–$2,550 estimated range is a small fraction of median property value. Home values are 34% above the New York average.

Protecting Children from Lead in Uniondale

0.001
mg/L Avg Lead (Limit: 0.015)

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.

Lead risk in Uniondale appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Historical Flood-Claim Evidence for Uniondale

19
Total FEMA Flood Claims
$5,053
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Uniondale contains 19 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,053. 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 <strong>$1,800</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.

Frequently Asked Questions

What does the Home Safety Score mean for Uniondale, NY?
Uniondale has an average Home Safety Score of 81/100 (Grade B) 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. 4 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Uniondale have?
Uniondale water systems have a total of 4 EPA violations, including 3 health-based violations. Violations are tracked across 3 ZIP codes.
Does Uniondale water have lead?
The average 90th-percentile lead level in Uniondale is 0.001 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Uniondale compare to New York average?
Uniondale has an average Home Safety Score of 81/100, which is below the New York state average of 84/100 for the same model series.
How many water systems serve Uniondale?
Uniondale is served by 3 public water systems across 3 ZIP codes, serving approximately 28,344 people.
How much does it cost to fix water issues in Uniondale?
Estimated remediation costs in Uniondale average $1,800 per household, ranging from $1,200 to $2,550. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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How to cite this page

APA ZipCheckup. (2026). Uniondale, NY: 3 Health Violations - Home Safety 81/100. https://zipcheckup.com/cities/ny/uniondale/
BibTeX
@misc{zipcheckup-cities-ny-uniondale,
  author = {{ZipCheckup}},
  title  = {{Uniondale, NY: 3 Health Violations - Home Safety 81/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ny/uniondale/}
}

Page version: August 2026.

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