States ›South Carolina ›Charleston County ›Kiawah Island

Kiawah Island, SC Tap Water Quality 2026

Water quality report for Kiawah Island, SC — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Kiawah Island's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Kiawah Island Utility (sc1010008) PWSID: SC1010008 Updated: 2026 Q2
⚠️

PFAS above the federal limit

Lead is 1.10 ppb, 7% of the action level and no violations are open. However, PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 1.58 times the limit.

B

Kiawah Island earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.10 ppb — 7% of the federal action level
PFAS above the federal limit at 1 of 1 sampling points
No violations since 2015
No violations currently open
Kiawah Island's lead level vs. all South Carolina community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.10 ppb — 7% of the federal action level
✓ Lower lead than 60% of South Carolina utilities
Population Served
2011
~4595 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
None on record since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.10 ppb, 7% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

✓ No violations on record for this water system.
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

No violations are on record for this system since 2015. EPA records violations for every community water system, so this reflects a clean compliance history rather than missing data.

About the Main Water System

Utility Kiawah Island Utility (Sc1010008)
PWSID SC1010008
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 2,011
Service connections 4,595
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Kiawah Island tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 1 of 1 sampling points. No violations are currently open. Lead is 1.10 ppb, 7% of the action level.
Does Kiawah Island water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 1.58 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Kiawah Island? ▼
Kiawah Island Utility (Sc1010008) (PWSID SC1010008). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2025-02-19. No significant deficiencies were recorded.

What Should Kiawah Island Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in South Carolina

Charleston, Sc Tap Water Quality 2026 Charleston North Charleston, Sc Tap Water Quality 2026 Charleston Mount Pleasant, Sc Tap Water Quality 2026 Charleston James Island, Sc Tap Water Quality 2026 Charleston Hollywood, Sc Tap Water Quality 2026 Charleston Isle of Palms, Sc Tap Water Quality 2026 Charleston