Kaunakakai, HI Home Safety: Home Safety 100/100
1 ZIP code · 3 water systems · Updated
ZipCheckup grade for Kaunakakai: A.
No federal data flags a major home-safety concern for this ZIP.
Across Kaunakakai, EPA monitoring data shows low violation rates and healthy safety margins - a pattern that places the city well above HI's average for drinking water compliance across recent reporting cycles.
How Kaunakakai Compares
Data: EPA SDWIS
What You Should Know About Kaunakakai Water
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 72% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 11.58.
Who Supplies Your Water in Kaunakakai
Residential water in Kaunakakai, HI is supplied by 3 separate utilities - not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 3 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
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Overview
We track home safety data for 1 ZIP code in Kaunakakai, Hawaii, covering 3 community water systems serving approximately 5,168 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Kaunakakai: A (100/100)
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
Kaunakakai water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 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
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 96748 | A | Kaunakakai | 3,702 |
All ZIP Codes in Kaunakakai
- 96748 [A]
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 Kaunakakai
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 Kaunakakai
With 72% 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
While newer cities carry lower aggregate plumbing risk from lead-era construction, Kaunakakai sits firmly in the older category. The median build year of 1973 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing - and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.
Over half of homes in Kaunakakai 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 Kaunakakai Homeowners
Remediation costs in Kaunakakai are small relative to typical property values - the cost-to-value ratio here is favorable.
Remediation costs in Kaunakakai are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 51% below the Hawaii average.
Lead Exposure Risk for Children in Kaunakakai
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.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 72% of Kaunakakai stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Kaunakakai
Historical NFIP data for Kaunakakai contains 45 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,200. Among ZIP codes with claim records, 100% 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 <strong>$1,200</strong> 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 Kaunakakai, HI