Malverne, NY Water Safety: 73/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
EPA compliance records for Malverne tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within NY.
How Malverne Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Malverne Water
- Homes built before 1986: 97% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 10.69.
Who Supplies Your Water in Malverne
Water delivery in Malverne, NY is handled by 2 utilities rather than a single system — drawn from 2 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 1 ZIP code in Malverne, New York (population ~8,908), covering 2 community water systems serving approximately 252,031 people region-wide.
No EPA violations recorded across any ZIP codes in Malverne — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Malverne: B (73/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Malverne water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Malverne
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 11565 | B | Liberty Utilities New York - Lynbrook | 220,000 |
All ZIP Codes in Malverne
- 11565 [B]
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
Updated daily.
Health Outcomes in Malverne
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
Housing & Infrastructure in Malverne
With 97% 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
Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Malverne's median build year of 1900 reflects a housing stock where these older materials are a pervasive feature — not a rare legacy — of the residential plumbing landscape.
Over half of homes in Malverne 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.
Cost Context: What Remediation Means for Malverne Homeowners
Across Malverne, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Malverne are relatively low compared to home values. The $1,200–$2,600 estimated range is a small fraction of median property value. Home values are 74% above the New York average.
Lead Exposure Risk for Children in Malverne
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.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 97% pre-rule share in Malverne keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Malverne
Over the multi-decade window covered by the National Flood Insurance Program, Malverne has accumulated 10 claims — a total that suggests more than isolated flood exposure. With 100% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.
Malverne has a moderate flood history with 10 FEMA claims averaging $8,730 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Malverne, NY