Pahoa
EPA ID: HI0000111 · 1,885 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Pahoa (HI0000111): no EPA violations recorded in the last five years. EPA data: Pahoa - zero violations, five years, 1,885 served.
Data: EPA SDWIS
Service Area Map
Coverage area for Pahoa Source: EPA SDWIS service area boundaries.
Service area boundary - Grade A
Service Area Demographics
The Pahoa serves a community with a median household income of $34,863 and an estimated 14,225 residents across its service area.
Environmental Justice Note: 33% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Pahoa's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Hawaii
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Pahoa (EPA ID: HI0000111) is a community water system in Hawaii that serves approximately 1,885 people from groundwater sources.
This system serves ZIP code 96778 in Pahoa.
ZIP-Area Home Safety Context: A (100/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by HI or modeled from parcel and building-footprint data.
- 96778 - Pahoa
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Pahoa (HI0000111) on EPA.gov.
Frequently Asked Questions
Is Pahoa water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Pahoa in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Pahoa serve?
Pahoa serves approximately 1,885 people across 1 ZIP code in Hawaii.
Where does Pahoa get its water?
The primary water source is groundwater.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Pahoa Water Quality Report, HI. https://zipcheckup.com/water-system/hi0000111/
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author = {{ZipCheckup}},
title = {{Pahoa Water Quality Report, HI}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/hi0000111/}
}