WATER QUALITY HI

Water Quality in Fort Shafter, HI: No Violations — Grade C

Grade C · Score 66/100 · 1 water system · Updated 2026-05-03

Fort Shafter's water has moderate compliance issues. Residents in affected areas should consider filtration.

Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03

EPA compliance data for Fort Shafter, HI covers 1 water system and returns the same result across every reporting period on file: zero violations documented, zero enforcement initiated, zero health-based findings registered anywhere in the federal dataset.

Water Grade

Total Violations

Water Systems

ZIPs with Violations

ZIP Codes Monitored

Water Quality by ZIP Code in Fort Shafter

Water quality varies across Fort Shafter's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.

ZIP Code	Grade	Score	Violations	Health
96858	C	66	0	0	View report →

Water Quality Overview

Fort Shafter, Hawaii receives a water quality grade of C with an overall score of 66 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).

No EPA violations have been recorded for the 1 water system serving Fort Shafter. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.

What Grade C Means

A grade of C indicates moderate compliance issues. Fort Shafter's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.

Lead Levels

Lead testing data for Fort Shafter is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.

Water Systems Serving Fort Shafter

Fort Shafter is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 631,389 people across 1 ZIP codes.

Each water system is identified by a Public Water System ID (PWSID) and is required to:

Test for over 90 regulated contaminants on a regular schedule
Report results to the EPA and state regulators
Issue an annual Consumer Confidence Report (CCR) to all customers
Take corrective action when violations occur

How to Check Your Water in Fort Shafter

Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts

Fort Shafter vs. Nearby Hawaii Cities

How Fort Shafter's water quality compares to similar cities in Hawaii:

City	Grade	Systems	Population
Fort Shafter	C	1	631,389
Waimanalo	C	1	631,389
J B P H H	C	2	631,833
Honolulu	A	5	934,305

Common Questions About Fort Shafter Water

These are the most common questions residents search for about water quality in Fort Shafter, Hawaii:

Is Fort Shafter water hard or soft? Water hardness varies by source. Fort Shafter's 1 water system uses a single source. Check your ZIP code report for specific hardness data.

Can I drink Fort Shafter tap water? Fort Shafter's water receives a grade of C (66/100). No health-based violations have been recorded, but home testing is always recommended.

What is the best water filter for Fort Shafter? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.

Fort Shafter vs. Hawaii Average

Understanding how Fort Shafter compares to the broader Hawaii average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.

To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Fort Shafter.

ZIP Codes in Fort Shafter

Fort Shafter spans 1 ZIP code. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.

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
Enforcement: EPA ECHO database
Filter recommendations: NSF/ANSI certified products

Updated daily.

Frequently Asked Questions

Is Fort Shafter tap water safe to drink?

Fort Shafter's water receives a grade of C (66/100). Some areas have recorded violations — residents in affected ZIP codes may want to consider water testing.

What contaminants are found in Fort Shafter water?

Fort Shafter water systems have zero recorded violations. While this is excellent, the EPA recommends annual testing as contaminants can enter your water through home plumbing.

How many water violations does Fort Shafter have?

Fort Shafter has 0 total EPA violations across 1 water system. 0 of 1 ZIP codes have at least one violation.

How many water systems serve Fort Shafter?

Fort Shafter is served by 1 public water system supplying drinking water across 1 ZIP codes. Water quality can vary between systems — check your specific ZIP code for localized data.

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