A85/100
Sullivans Island Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,521 residents · South Carolina
What's In Sullivans Island's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1997.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
SULLIVANS ISLAND TOWN OF (1010003)
Population Served
2,521
Water Source
Purchased Surface Water
System ID
SC1010003
Frequently Asked Questions About Sullivans Island Water
Is Sullivans Island tap water safe to drink?
Sullivans Island, South Carolina tap water receives a grade of A (85/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Sullivans Island's water?
Of the 1 contaminants tested in Sullivans Island's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Sullivans Island have any water quality violations?
Yes, Sullivans Island has 4 EPA violation(s) on record, with the most recent in 1997. Violation types include MR, MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sullivans Island?
Sullivans Island water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Sullivans Island's tap water come from?
Sullivans Island's drinking water is sourced from purchased surface water and supplied by SULLIVANS ISLAND TOWN OF (1010003). The system serves approximately 2,521 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Sullivans Island's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Sullivans Island's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Sullivans Island's water compare to other cities in South Carolina?
Sullivans Island's water quality score of 85/100 earns a grade of A, which is considered excellent. This places Sullivans Island among the better-performing water systems in South Carolina. Visit our South Carolina state page to see how all cities in the state compare.
What should I do if I'm concerned about Sullivans Island's water quality?
If you have concerns about Sullivans Island's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SULLIVANS ISLAND TOWN OF (1010003)) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.