East Hanover, NJ Water Safety: 50/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
Although conditions vary by service area, East Hanover's water systems collectively show below-average compliance within NJ — health-based violations are documented throughout the city, and the overall grade reflects a pattern rather than isolated incidents.
How East Hanover Compares
Data: EPA SDWIS Last verified: 2026-06-04
East Hanover Water: The Quick Version
- Homes built before 1986: 58% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 9.89.
Water Systems Serving East Hanover
East Hanover, NJ draws its water from one primary utility across 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in East Hanover, New Jersey (population ~11,106), covering 1 community water system serving approximately 27,391 people region-wide.
No EPA violations recorded across any ZIP codes in East Hanover — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for East Hanover: D (50/100)
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
East Hanover water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for East Hanover
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 07936 | D | LIVINGSTON TWP DIV OF WATER | 27,391 |
All ZIP Codes in East Hanover
- 07936 [D]
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.
CDC Health Data for East Hanover
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
How Old Is East Hanover's Housing Stock?
With 58% 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
Reading the housing age data for East Hanover — median build year 1988 — the overriding implication is that the plumbing materials inside a typical home here reflect pre-1986 construction standards. In practical terms, that means lead-soldered copper joints are common across much of the housing stock. Where those materials are present, water can leach lead as it moves through joints — a pathway that corrosion control treatment under federal rules is designed to reduce, though it cannot eliminate lead risk where the plumbing materials themselves contain lead.
Over half of homes in East Hanover 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.
East Hanover: Remediation Cost in Perspective
Placing remediation in the context of East Hanover's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in East Hanover are relatively low compared to home values. The $1,200–$3,400 estimated range is a small fraction of median property value. Home values are 38% above the New Jersey average.
Protecting Children from Lead in East Hanover
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.
58% of East Hanover housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for East Hanover
FEMA data shows 100% of East Hanover's ZIP codes mapped into designated flood zones, paired with an NFIP record of 112 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
East Hanover has a moderate flood history with 112 FEMA claims averaging $17,831 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>$2,200</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.
What You Can Do in East Hanover
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 58% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for East Hanover, NJ