Water Quality in Oak Island, NC: No Violations — Grade C
Grade C · Score 67/100 · 1 water system · Updated 2026-05-03
Oak Island'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
Zero EPA violations on record for Oak Island, NC — the 1 public water system tracked here have met every federal contaminant limit, cleared every monitoring requirement, and drawn no enforcement actions from the agency across the full compliance dataset.
Water Quality by ZIP Code in Oak Island
Water quality varies across Oak Island's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 28465 | C | 67 | 0 | 0 | View report → |
Water Quality Overview
Oak Island, North Carolina receives a water quality grade of C with an overall score of 67 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 Oak Island. 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. Oak Island'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 Oak Island is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Water Systems Serving Oak Island
Oak Island is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 26,924 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 Oak Island
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
Oak Island vs. Nearby North Carolina Cities
How Oak Island's water quality compares to similar cities in North Carolina:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Oak Island | C | 0 | 1 | 26,924 |
| Southport | D | 0 | 1 | 26,924 |
| Tarboro | D | 11 | 3 | 26,879 |
| Waynesville | B | 20 | 4 | 27,279 |
Common Questions About Oak Island Water
These are the most common questions residents search for about water quality in Oak Island, North Carolina:
Is Oak Island water hard or soft? Water hardness varies by source. Oak Island's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Oak Island tap water? Oak Island's water receives a grade of C (67/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Oak Island? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Oak Island vs. North Carolina Average
Understanding how Oak Island compares to the broader North Carolina 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 Oak Island.
ZIP Codes in Oak Island
Oak Island 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.