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Water system · PWSID AZ0408068

NORTH MOHAVE VALLEY

83
Good
PurityRadar safety score

PWSID

AZ0408068

State

Arizona

City

BULLHEAD CITY

Population served

5,190

Primary source

Groundwater

Score history

▼ 17 points — the score moved from 100 to 83 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 83

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 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5.5 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFHxS

Perfluorohexanesulfonic acid

3.4 ppt

limit 10 ppt

Below EPA limit

Lithium

44,000 ppt

limit —

No federal limit

PFBS

3.6 ppt

limit —

No federal limit

PFPeA

3.2 ppt

limit —

No federal limit

PFHxA

3 ppt

limit —

No federal limit

Violations & enforcement

99

Violations on record

5

Unaddressed

8

Health-based

60

Enforcement actions

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

Other · EPA contaminant 7500 began Dec 2025 Unaddressed
Other · EPA contaminant 7500 began Nov 2025 Unaddressed
Other · EPA contaminant 7500 began Oct 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed
Other · EPA contaminant 7500 began Dec 2024 Unaddressed
Other · EPA contaminant 7000 began Oct 2025 Resolved
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Other · EPA contaminant 7000 began Oct 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved

Recent enforcement actions

  • State action · SIA Dec 2025
  • State action · SOX Oct 2025
  • State action · SIA Oct 2025
  • State action · SOX Oct 2025
  • State action · SOX Sep 2025
  • State action · SOX Jul 2025
  • State action · SIA Jan 2025
  • State action · SOX Jan 2025

This profile is built from EPA public records for system AZ0408068 — 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.