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Water system · PWSID NC0467035

ONSLOW WTR AND SEWER AUTHORITY

JACKSONVILLE, NC · ~156,755 people served

Check your exact address → JACKSONVILLE overview
100
Excellent
PurityRadar safety score

PWSID

NC0467035

State

North Carolina

City

JACKSONVILLE

Population served

156,755

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

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

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

Lithium

10,800 ppt

limit —

No federal limit

Violations & enforcement

48

Violations on record

0

Unaddressed

5

Health-based

82

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2025. Official EPA record →

Other · EPA contaminant 7500 began Oct 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Reporting · Lead & Copper Rule began Dec 2023 Resolved
Reporting · Lead & Copper Rule began Jul 2023 Resolved
Other · EPA contaminant 7500 began Jun 2020 Resolved
Reporting · Lead & Copper Rule began Jun 2019 Resolved
Other · EPA contaminant 7500 began Apr 2014 Resolved
Other · EPA contaminant 7500 began Feb 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2013 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2013 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2013 Resolved

Recent enforcement actions

  • State action · SIF Jan 2025
  • State action · SIF Jan 2025
  • State action · SOX Dec 2024
  • State action · SIA Nov 2024
  • State action · SOX Nov 2024
  • State action · SOX Nov 2024
  • State action · SFJ Jan 2024
  • State action · SIE Jan 2024

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Copper

1 station · latest Dec 2021

0.49 · max 0.49 ug/l · 1

Fluoride

1 station · latest Dec 2021

0.89 · max 0.89 mg/l · 1

Lead

1 station · latest Dec 2021

0.027 · max 0.027 ug/l · 1

Manganese

1 station · latest Dec 2021

2.38 · max 2.38 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system NC0467035 — 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.