Naalehu, HI Water Safety: 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Naalehu, HI: mid-range safety grade, uneven compliance across service areas.
How Naalehu Compares
Data: EPA SDWIS Last verified: 2026-06-03
Naalehu Water: The Quick Version
- Homes built before 1986: 40% — older plumbing may contain lead solder.
- CDC health risk index: 12.35 — above typical levels.
Water Systems Serving Naalehu
While 1 water system appear in federal records for Naalehu, HI, one provider supplies the majority of residential connections — making it the central point of infrastructure and compliance accountability for most households.
Overview
We track water quality and home safety data for 1 ZIP code in Naalehu, Hawaii, covering 1 community water system serving approximately 2,556 people.
No EPA violations recorded across any ZIP codes in Naalehu — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Naalehu: C (66/100)
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
Naalehu water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Naalehu
- 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 |
|---|---|---|---|
| 96772 | C | PAHALA | 1,226 |
All ZIP Codes in Naalehu
- 96772 [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.
CDC Health Data for Naalehu
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 Naalehu's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Roughly balanced between older and newer construction, Naalehu shows a median build year of 1998 — a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Naalehu were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Naalehu
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.
40% — that captures the slice of Naalehu housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Naalehu
- 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 40% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Naalehu, HI