Manhasset, NY: 225 Violations - Home Safety 67/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Manhasset: C.
A mixed picture - some signals here are worth your attention.
Manhasset water quality is uneven - some service areas show clean compliance; others carry documented violations in NY EPA records.
How Manhasset Compares
Data: EPA SDWIS
Key Facts for Manhasset Residents
- Your city's water systems recorded 225 violations in the past 5 years.
- Average lead level: 0.0026 mg/L.
- Homes built before 1986: 78% - older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
- CDC health risk index: 10.69.
Manhasset's Water Providers
Multiple utilities divide Manhasset, NY's water service - 3 leading providers among 5 on the federal register.
- C
- C
- C
Overview
We track home safety data for 1 ZIP code in Manhasset, New York (population ~17,703), covering 5 community water systems serving approximately 113,600 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 Manhasset: C (67/100)
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
Manhasset water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0026 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 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Contaminant 2005 | Other | 16 | 1 |
| Contaminant 2010 | Other | 16 | 1 |
| Contaminant 2015 | Other | 16 | 1 |
| Contaminant 2020 | Other | 16 | 1 |
| Contaminant 2031 | Other | 16 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 11030 | C | 225 | 0 | Manhasset Lakeville Water District |
All ZIP Codes in Manhasset
- 11030 [C] - 225 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Manhasset Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Manhasset's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Manhasset Infrastructure Age
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
The median home in Manhasset was built in 1940 - a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.
Over half of homes in Manhasset 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.
How Remediation Costs Compare in Manhasset
At current valuations, Manhasset sits in the low remediation-share tier - the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Manhasset 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 397% above the New York average.
Manhasset: Lead Risk & Vulnerable Populations
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.
Older interior plumbing shapes the local picture: 78% of Manhasset homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Manhasset: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Manhasset contains 82 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,159. 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>$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 Manhasset
- 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.
- Install a certified water filter. Filters rated for Contaminant 2005 can reduce the most common contaminant found in Manhasset's water.
- Check your home's plumbing. With 78% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Manhasset, NY