CheckPFAS

ZIP Code 28401

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

14
PFAS Detected
2
Above EPA Limits
3
Water Systems
310%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 310% of limit
Detected: 12.40 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 193% of limit
Detected: 7.70 ppt

BRUNSWICK COUNTY WATER SYSTEM

NC0410045 High Risk
Water Type
Surface Water
PFAS Detected
9
Above MCL
2
State
North Carolina
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
12.40ppt
310% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
7.70ppt
193% of limit
4 ppt⚠ Exceeds MCL
HFPO-DA
GenX (Hexafluoropropylene oxide dimer acid)
5.80ppt
58% of limit
10 pptBelow limit
PFHxS
Perfluorohexane sulfonic acid
5.20ppt
52% of limit
10 pptBelow limit
PFPeA
Perfluoropentanoic acid
11.50pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
9.80pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
8.50pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
7.10pptNo federal limitUnregulated
Show 1 more compound detected at low levels
PFHpAPerfluoroheptanoic acid4.10 pptNo federal limit

CFPUA-WILMINGTON

NC0465010 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
North Carolina
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFPeA
Perfluoropentanoic acid
4.40pptNo federal limitUnregulated

PENDER COUNTY UTILITIES

NC7071011 Low Level
Water Type
Surface Water
PFAS Detected
4
Above MCL
0
State
North Carolina
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFPeA
Perfluoropentanoic acid
7.60pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
5.30pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
5.00pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
4.80pptNo federal limitUnregulated
Note: ZIP code 28401 is served by 3 separate water utilities. Results above show data for each system independently.

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →