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Updated 2026-10-15
County water report

Mohave County Water Quality: 3 Cities Ranked by the Records

Mohave County, Arizona: 3 city reports built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my systemOpen on the mapPrivate wells in Mohave County
Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

LithiumDetected in 3 systems10 µg/L EPA health reference level (screening, not a legal limit) · US EPAHighest100 µg/L
Perfluorooctanesulfonic acid (PFOS)Detected in 1 system of 3 tested4.0 ng/L federal MCL (2024) · US EPAHighest7.3 ng/L
Perfluorooctanoic acid (PFOA)Detected in 1 system of 3 tested4.0 ng/L federal MCL (2024) · US EPAHighest5.3 ng/L
Perfluorohexanesulfonic acid (PFHxS)Detected in 1 system of 3 tested10 ng/L federal MCL (2024) · US EPAHighest7 ng/L
Lead (90th percentile)Detected in 1 system of 3 tested15 µg/L federal action level · US EPAHighest3.1 µg/L
Perfluorobutanesulfonic acid (PFBS)Detected in 2 systems of 3 tested2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPAHighest3.1 ng/L
Perfluorohexanoic acid (PFHxA)Detected in 1 system of 3 tested400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLEHighest3 ng/L
Perfluoropentanoic acid (PFPeA)Detected in 1 system of 3 testedNo federal or state limit; shown for transparencyHighest3.7 ng/L
23 PFAS tested, none detected in any systemShow

Tested in these 3 systems: BULLHEAD CITY MOHAVE, KINGMAN MUNICIPAL WATER, LAKE HAVASU CITY OF

  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluorobutanoic acid (PFBA)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluorononanoic acid (PFNA)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
3 cities

Cities ranked by the records

Showing 3 of 3 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Mohave County1 of 3 city reports had a PFAS sample above a 2024 EPA limit
  1. Bullhead City7.3 ng/L
4.0 ng/L federal MCL · PFOS, ng/LPFAS in Arizona
Lead

0of 3 cities above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Arizona
Who supplies the county

Largest water systems

  1. Lake Havasu CityLAKE HAVASU CITY OF · AZ0408022
    54,610 served
  2. KingmanKINGMAN MUNICIPAL WATER · AZ0408020
    45,000 served
  3. Bullhead CityBULLHEAD CITY MOHAVE · AZ0408032
    36,330 served
Questions

Frequently asked

How does Mohave County tap water compare across cities?

PurityMap ranks 3 cities in Mohave County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Kingman's main water system: KINGMAN MUNICIPAL WATER · PWSID AZ0408020 · Purity Score 100 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Mohave County cities had a PFAS sample above a 2024 EPA limit?

1 of 3 Mohave County city reports had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Bullhead City (PFOS 7.3 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 2.

Is there lead in Mohave County tap water?

Utilities report lead as a 90th-percentile result from home taps. 1 of 3 Mohave County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

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