Hewlett, NY: 3 Health Violations - Home Safety 81/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Hewlett: B.
This ZIP has a few items worth a quick check.
Across Hewlett, NY, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.
How Hewlett Compares
Data: EPA SDWIS
What You Should Know About Hewlett Water
- Your city's water systems recorded 3 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0042 mg/L.
- Homes built before 1986: 92% - older plumbing may contain lead solder.
- Estimated remediation: $1,100 per household.
- Health risk index (ZipCheckup composite of CDC data): 10.69.
Who Supplies Your Water in Hewlett
Federal drinking water data connect ZIP codes in Hewlett, NY to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.
- B
Overview
We track home safety data for 1 ZIP code in Hewlett, New York (population ~8,503), covering 1 community water system serving approximately 220,000 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. 3 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Hewlett: 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
Hewlett water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0042 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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 6 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 11557 | B | 3 | 3 | Liberty Utilities New York - Lynbrook |
All ZIP Codes in Hewlett
- 11557 [B] - 3 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.
Health Outcomes in Hewlett
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
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Hewlett Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Hewlett
With 92% 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
Viewed through the lens of construction era, Hewlett has a median build year of 1956; houses completed ahead of 1986 can hold lead-bearing solder or fittings.
Over half of homes in Hewlett 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.
Cost Context: What Remediation Means for Hewlett Homeowners
In Hewlett, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Hewlett can be compared with local home values. The $600–$2,300 estimated range can be set against the median property value; actual costs vary by home. Home values are 96% above the New York average.
Lead Exposure Risk for Children in Hewlett
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 NFIP Claim Context in Hewlett
Historical NFIP data for Hewlett contains 369 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $75,284. 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 $1,100 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 Hewlett, NY