Waikoloa, HI Home Safety: Home Safety 100/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Waikoloa: A.
No federal data flags a major home-safety concern for this ZIP.
How does Waikoloa tap water hold up under EPA scrutiny? Above average for HI - documented violations are uncommon and the safety grade reflects a clean overall record.
How Waikoloa Compares
Data: EPA SDWIS
What You Should Know About Waikoloa Water
- Homes built before 1986: 28% - older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 12.35 - above typical levels.
Who Supplies Your Water in Waikoloa
2 water systems are tracked federally in Waikoloa, HI. The top 2 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
- A
- A
Overview
We track home safety data for 1 ZIP code in Waikoloa, Hawaii (population ~7,407), covering 2 community water systems serving approximately 13,995 people region-wide. 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 Waikoloa: 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
Waikoloa water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0000 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 |
|---|---|---|---|
| 96738 | A | Waikoloa | 12,100 |
All ZIP Codes in Waikoloa
- 96738 [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 Waikoloa
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 Waikoloa
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
Waikoloa has a newer housing profile - median build year 1995, placing most homes after the 1986 lead-solder ban.
Most homes in Waikoloa 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.
Cost Context: What Remediation Means for Waikoloa Homeowners
In Waikoloa, documented water and safety issues can be addressed without making a meaningful dent in home equity - the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Waikoloa are relatively low compared to home values. The $1,200–$2,500 estimated range is a small fraction of median property value. Home values are 6% below the Hawaii average.
Lead Exposure Risk for Children in Waikoloa
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.
Where pre-rule stock represents a smaller fraction of the inventory - 28% across Waikoloa - the structural drivers of household exposure run thinner. Aggregate readings under the federal benchmark reinforce that picture, with one-home draws remaining the only direct measurement for a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Waikoloa
Historical NFIP data for Waikoloa contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $38,946. Among ZIP codes with claim records, 0% 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>$1,800</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 Waikoloa, HI