PWSID
NC0410020
State
North Carolina
City
OAK ISLAND
Population served
26,924
Primary source
SWP
Score history
▼ 59 points — the score moved from 100 to 41 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jul 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
11 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
6.8 ppt
limit 4 ppt
GenX (HFPO-DA)
GenX (HFPO-DA)
5.2 ppt
limit 10 ppt
PFHxS
Perfluorohexanesulfonic acid
4.3 ppt
limit 10 ppt
PFPeA
8 ppt
limit —
PFHxA
7.9 ppt
limit —
PFBA
6.6 ppt
limit —
PFBS
5.2 ppt
limit —
PFHpA
3.6 ppt
limit —
Violations & enforcement
30
Violations on record
0
Unaddressed
1
Health-based
72
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jul 2019. Official EPA record →
Recent enforcement actions
- State action · SIF Jul 2019
- State action · SOX May 2019
- State action · SOX Jan 2019
- State action · SFJ Nov 2018
- State action · SFL Nov 2018
- State action · SFL Apr 2018
- State action · SFJ Apr 2018
- State action · SIE Apr 2018
This profile is built from EPA public records for system NC0410020 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.