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Water system · PWSID NC0149182

DIAMOND HEAD S/D

87
Excellent
PurityRadar safety score

PWSID

NC0149182

State

North Carolina

City

CARY

Population served

1,433

Primary source

Groundwater

Score history

▼ 13 points — the score moved from 100 to 87 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 87

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 Dec 2023). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.6 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

5.5 ppt

limit 10 ppt

Near EPA limit

PFBS

4.1 ppt

limit —

No federal limit

PFPeA

3.6 ppt

limit —

No federal limit

PFHxA

3.3 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

0

Health-based

6

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2002 Resolved

Recent enforcement actions

  • State action · SOX Dec 2024
  • State action · SFL Nov 2024
  • State action · SFJ Nov 2024
  • State action · SOX Aug 2006
  • State action · SFJ Oct 2002
  • State action · SIE Oct 2002

This profile is built from EPA public records for system NC0149182 — 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.