Lanai City
EPA ID: HI0000237 · 3,200 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Lanai City (HI0000237): 1 unresolved EPA violation on record. Federal compliance records for Lanai City list 1 open violation that has not yet been resolved - the utility serves approximately 3,200 people, and each outstanding finding remains logged and active in the EPA enforcement database.
Data: EPA SDWIS
Service Area Map
Coverage area for Lanai City Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Lanai City serves a community with a median household income of $79,808 and an estimated 3,333 residents across its service area. Approximately 57% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Lanai City'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
Detected Contaminants
How Lanai City compares to EPA limits
What This Means For You
Mercury at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Cadmium at 1 mg/L exceeds the EPA maximum of 0.005 mg/L. Kidney damage accumulating over lifetime; probable carcinogen. Consider reverse osmosis filtration.
Chromium at 1 mg/L (total chromium; California Cr-6 MCL = 0.010 mg/L) exceeds the EPA maximum of 0.1 mg/L (total chromium; California Cr-6 MCL = 0.010 mg/L). Stomach & intestinal cancer (known carcinogen). Consider reverse osmosis filtration.
Contaminant 1036 at 1 mg/L exceeds the EPA maximum of mg/L.
Mercury was detected in this water system. activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Lanai City (EPA ID: HI0000237) is a community water system in Hawaii that serves approximately 3,200 people from groundwater sources.
This system serves ZIP code 96763 in Lanai City.
Violation History
Status breakdown for accepted records with record years 2021-2026: 10 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2023 | Barium | Non-health-based | Resolved |
| January 1, 2023 | Cadmium | Non-health-based | Resolved |
| January 1, 2023 | Chromium | Non-health-based | Resolved |
| January 1, 2023 | Fluoride | Non-health-based | Resolved |
| January 1, 2023 | Nitrite | Non-health-based | Resolved |
| January 1, 2023 | Contaminant 1036 | Non-health-based | Resolved |
| January 1, 2023 | Mercury | Non-health-based | Resolved |
| January 1, 2023 | Contaminant 1075 | Non-health-based | Resolved |
| January 1, 2023 | Contaminant 1085 | Non-health-based | Resolved |
| January 1, 2023 | Contaminant 1045 | Non-health-based | Resolved |
| January 1, 2022 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 1 | No |
| Cadmium | Inorganic | 1 | No |
| Chromium | Inorganic | 1 | No |
| Fluoride | Inorganic | 1 | No |
| Nitrite | Inorganic | 1 | No |
| Contaminant 1036 | Other Violation | 1 | No |
| Contaminant 1045 | Other Violation | 1 | No |
| Mercury | Inorganic | 1 | No |
| Contaminant 1075 | Other Violation | 1 | No |
| Contaminant 1085 | Other Violation | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
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.
- 96763 - Lanai City
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Lanai City (HI0000237) on EPA.gov.
Frequently Asked Questions
Is Lanai City water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Lanai City serve?
Lanai City serves approximately 3,200 people across 1 ZIP code in Hawaii.
Where does Lanai City get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lanai City (HI): 11 EPA Violations. https://zipcheckup.com/water-system/hi0000237/
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author = {{ZipCheckup}},
title = {{Lanai City (HI): 11 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/hi0000237/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Lanai City (EPA ID: HI0000237) - request the latest Consumer Confidence Report or ask about specific contaminants.