PFAS in North Charleston, SC Drinking Water
PFAS data for North Charleston, South Carolina · 75,617 residents · 5 ZIP codes
ZipCheckup's reading of PFAS in North Charleston, South Carolina: the highest detected level is 6 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.
For residents of North Charleston, South Carolina, PFAS has appeared in public water supply sampling data.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13
PFAS in North Charleston Tap Water
PFAS has been detected in North Charleston, South Carolina drinking water at a maximum level of 6 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 75,617 residents across 5 ZIP codes in North Charleston.
North Charleston's overall water quality grade is A (87/100).
Is PFAS in North Charleston Water Safe?
PFAS was detected in North Charleston water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or granular activated carbon filter can reduce pfas levels further.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 29420 | 20 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 29405 | 15 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 29418 | 15 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 29405 | 6 ppt | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 29405 | 3.8 ppt | 4 ppt (PFOA/PFOS individually) | OK |
Average pfas level across North Charleston: 11.96 ppt
Health Effects of PFAS
- Increased risk of kidney and testicular cancer
- Thyroid disease and immune system suppression
- Reproductive problems and reduced fertility
- Elevated cholesterol and liver effects
- Developmental effects in infants and children
Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).
How PFAS Gets Into Drinking Water
- Firefighting foam (AFFF) used at military bases and airports
- Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
- Wastewater treatment plants that receive industrial discharge
- Landfill leachate from PFAS-containing consumer products
What to Do About PFAS in North Charleston Water
- Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
- Granular activated carbon (GAC) filters remove some PFAS compounds
- Look for NSF 53 or NSF 58 certification specifically tested for PFAS
- Pitcher filters with activated carbon provide partial reduction
Look for filters certified under NSF 53 / NSF 58 for pfas removal.