Hauula, HI Water Safety: 60/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
The systems supplying Hauula vary in performance across HI benchmarks — most meet minimum federal standards, but documented violations in select areas are on record.
How Hauula Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Hauula Residents
- Homes built before 1986: 68% — older plumbing may contain lead solder.
- Estimated remediation: $1,700 per household.
- CDC health risk index: 10.63.
Hauula's Water Providers
As of current federal records, Hauula, HI is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
Overview
We track water quality and home safety data for 1 ZIP code in Hauula, Hawaii, covering 1 community water system serving approximately 4,396 people.
No EPA violations recorded across any ZIP codes in Hauula — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Hauula: C (60/100)
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
Hauula water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Hauula
- 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 |
|---|---|---|---|
| 96717 | C | LAIE WATER COMPANY | 5,577 |
All ZIP Codes in Hauula
- 96717 [C]
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.
Hauula 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
Hauula Infrastructure Age
With 68% 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
When a city's housing median build year is 1974, as in Hauula, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Hauula 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 Hauula
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Hauula is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Hauula are relatively low compared to home values. The $1,100–$2,600 estimated range is a small fraction of median property value. Home values are 20% above the Hawaii average.
Hauula: 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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 68% of the Hauula inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Hauula: Flood History & Water Damage Risk
Flood risk in Hauula occupies the middle ground: 189 NFIP claims and 100% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
Hauula has a moderate flood history with 189 FEMA claims averaging $13,764 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>$1,700</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 Hauula
- 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 68% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Hauula, HI