Is Lake Havasu City, AZ Tap Water Safe? Quality & Contaminants

What was found in Lake Havasu City's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	1100 µg/L 11% of the EPA limit 10000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2018 Highest in the city: 7300 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2019	3/4	SYR4
Nitrate-Nitrite	1100 µg/L 11% of the EPA limit 10000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014 Highest in the city: 5190 µg/L — HAVASU HEIGHTS DWID · 617 people · 2015	3/4	SYR4
Fluoride	597 µg/L 15% of the EPA limit 4000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 Highest in the city: 1900 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2018	3/4	SYR4
Copper	542.5 µg/L 42% of the EPA limit 1300 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 Highest in the city: 640.5 µg/L — HORIZON SIX DWID · 560 people · 2017	4/4	SYR4
Lithium	100 µg/L No EPA limit set Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2025	2/4	UCMR-5
TTHM	84.7 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019	3/4	SYR4
Barium	46 µg/L 2.3% of the EPA limit 2000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017	3/4	SYR4
Chromium	3.17 µg/L 3.2% of the EPA limit 100 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 Highest in the city: 20 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2018	3/4	SYR4
Total Haloacetic Acids (HAA5)	17 µg/L 28% of the EPA limit 60 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019	3/4	SYR4
Lead	10.45 µg/L 70% of the EPA limit 15 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 Highest in the city: 14.32 µg/L — HORIZON SIX DWID · 560 people · 2017	4/4	SYR4
Arsenic	6.75 µg/L 68% of the EPA limit 10 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019 Highest in the city: 7.7 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2019	3/4	SYR4
Combined Uranium	6.8 µg/L 23% of the EPA limit 30 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014	1/4	SYR4
Selenium	1.7 µg/L 3.4% of the EPA limit 50 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017	1/4	SYR4
Combined Radium (-226 And -228)	0.4000 pCi/L 8% of the EPA limit 5 pCi/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014 Highest in the city: 1.4 pCi/L — HAVASU HEIGHTS DWID · 617 people · 2018	2/4	SYR4
Xylenes, Total	0.6500 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: EPCOR - LAKE HAVASU · 4,788 people · 2019	1/4	SYR4
Gross Alpha, Excl. Radon And U	0.6000 pCi/L 4% of the EPA limit 15 pCi/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014	1/4	SYR4
Lead	0.0031 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2023 Highest in the city: 0.0040 mg/L — HORIZON SIX DWID · 560 people · 2023	4/4	LCR
PFBS	0.0030 µg/L No EPA limit set Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2025	1/4	UCMR-5

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 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Lake Havasu City

Supplier	Population served
LAKE HAVASU CITY OF	54,610
EPCOR - LAKE HAVASU	4,788
HAVASU HEIGHTS DWID	617
HORIZON SIX DWID	560

Frequently asked questions about Lake Havasu City tap water

Is Lake Havasu City tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Lake Havasu City. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Lake Havasu City?

4 public water suppliers report drinking-water monitoring for Lake Havasu City, Arizona to the EPA. Each is listed above with its population served.

What contaminants are in Lake Havasu City's water?

The contaminants EPA monitoring detected in Lake Havasu City include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium. The full list, with the level at the main supplier and the data source, is in the table above.

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.