Tap WaterIndex

← Arizona

Tap water quality report

Lake Mohave Highlands

EPA monitoring tested this supplier for 71 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
11
detected
746
people served
4
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Mohave

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
109
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
Other Monitoring Resolved 2025-11-19
Other Monitoring Resolved 2025-11-19
Other Monitoring Resolved 2025-10-02
Other Monitoring Resolved 2025-10-02
Other Monitoring Unaddressed 2025-01-02
MR Monitoring Resolved 2025-01-01 → 2025-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3700 µg/L 37%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
11 µg/L 73%
of the EPA limit 15 µg/L
 15/29 SYR4 2013–2019
TTHM
14 µg/L 18%
of the EPA limit 80 µg/L
 14/14 SYR4 2012–2019
Copper
270 µg/L 21%
of the EPA limit 1300 µg/L
 11/29 SYR4 2013–2019
Lead
0.0022 mg/L 15%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2025
Combined Radium (-226 And -228)
1.3 pCi/L 26%
of the EPA limit 5 pCi/L
 2/3 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
1.9 µg/L 3.2%
of the EPA limit 60 µg/L
 2/14 SYR4 2012–2019
Arsenic
4.1 µg/L 41%
of the EPA limit 10 µg/L
 1/1 SYR4 2012
Barium
66 µg/L 3.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Fluoride
460 µg/L 12%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
Nitrate-Nitrite
350 µg/L 3.5%
of the EPA limit 10000 µg/L
 1/1 SYR4 2012
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CLARK, MARK
Phone
928-763-9400
Email
MCLARK@BULLHEADCITYAZ.GOV

Frequently asked questions about Lake Mohave Highlands

Is Lake Mohave Highlands tap water safe to drink?

EPA monitoring detected 11 contaminants in Lake Mohave Highlands's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Lake Mohave Highlands's water?

EPA monitoring detected Nitrate, Lead, TTHM, Copper, Lead, and others. The full list with the level and data source for each is above.

How many people does Lake Mohave Highlands serve?

Lake Mohave Highlands reports serving 746 people in Arizona, per its EPA record.

Has Lake Mohave Highlands had any water quality violations?

The EPA has 109 violations on file for Lake Mohave Highlands, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.