States › Arizona › Mohave County

Mohave County, AZ Water Quality

Water quality data for 29 public water systems serving Mohave County, Arizona — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 29 water systems · 37 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Mohave County Earns a B

Mohave County: 37 communities across 29 water systems. 94.6% have no open violations.

  • Median lead where detected: 1.20 ppb
  • 21 communities with a lead detection, 16 reporting none detected
  • 2 communities with PFAS above the federal limit
  • 12 with significant inspection deficiencies
  • 94.6% of communities have no open violations
1.2 ppb
Median Lead Level
County-wide, 90th percentile
29
Water Systems
Active CWS & NTNCWS
94%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Crystal Beach
    Not detected
    No federal limits exceeded on record
    B
  • McConnico
    Not detected
    No federal limits exceeded on record
    A
  • Lake Havasu City
    3.10 ppb
    No federal limits exceeded on record
    A
  • Kingman
    Not detected
    No federal limits exceeded on record
    A
  • New Kingman-Butler
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Colorado City
    1.00 ppb
    PFAS above the limit at 1 of 2 sampling points
    F
  • Bullhead City
    1.80 ppb
    PFAS above the limit at 1 of 6 sampling points
    D
  • Golden Shores
    1.70 ppb
    1 violation currently open
    D
  • Arizona Village
    1.10 ppb
    Copper above the 1,300 ppb action level
    C
  • White Hills
    1.80 ppb
    3 significant inspection deficiencies
    C
County Lead Level — Median 1.2 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.2 ppb — 8% of the federal action level
Systems by Lead Level
Under 5 ppb
18
5 – 10 ppb
3
No Data
16

All Cities in Mohave County

Lake Havasu City 3.10 ppb A
Kingman Not detected A
Bullhead City 1.80 ppb D
Fort Mohave 5.60 ppb A
New Kingman-Butler Not detected A
Golden Valley 1.50 ppb A
Desert Hills Not detected B
Colorado City 1.00 ppb F
Golden Shores 1.70 ppb D
Valle Vista Not detected B
Centennial Park Not detected B
Meadview 1.00 ppb C
Dolan Springs Not detected B
Arizona Village 1.10 ppb C
Mohave Valley 1.10 ppb B
Beaver Dam Not detected B
Peach Springs 1.00 ppb B
Walnut Creek 1.70 ppb B
Willow Valley Not detected B
So-Hi Not detected B
Mesquite Creek 5.60 ppb A
Cane Beds 1.20 ppb B
Chloride 0.93 ppb B
Scenic 0.50 ppb B
Littlefield 1.10 ppb C
Clacks Canyon Not detected A
Truxton Not detected B
White Hills 1.80 ppb C
Oatman Not detected B
Yucca Not detected B
Katherine 1.70 ppb B
Kaibab 1.10 ppb C
Lazy Y U Not detected A
Moccasin 1.10 ppb C
Mojave Ranch Estates 5.60 ppb A
McConnico Not detected A
Crystal Beach Not detected B
Showing 37 cities
No active violations Active violations

About Mohave County Drinking Water

Mohave County is served by 29 water systems covering 37 communities. 95% have no open violations.

Of the communities reporting lead results, 21 recorded a detection, with a median of 1.20 ppb — 8% of the federal action level. 16 reported none detected, which means below the laboratory limit rather than an absence of lead.

2 of 37 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 12 of them.

Frequently Asked Questions

Is Mohave County tap water safe to drink?▼
95% of communities have no open violation. 2 of 37 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Mohave County?▼
Among communities with a detection the median is 1.20 ppb, 8% of the 15 ppb action level. 16 reported none detected and 0 reported no result.
How many water systems serve Mohave County?▼
29 community water systems serve 37 communities here.
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