Is Thousand Oaks Tap Water Safe to Drink?

Last Update12:11 am, October 7, 2020

The estimated price of bottled water

$3.25 in USD (1.5-liter)

Can You Drink Tap Water in Thousand Oaks?

Yes, tap water is drinkable.

There was no general information available in WHO data about safely managed drinking water in California. You may check the rate of travelers and residents of Thousand Oaks water quality.

What Do People In California Think About The Tap Water?

Travelers and residents of California have rated the water quality and pollution as follows, according to subjective survey data. A score of 100% is considered very high, and a score of 0% is very low. Please be cautious that "moderate to very high" water pollution is bad and the higher the rate of water quality the better.

Tap water ratings

  • Drinking Water Pollution and Inaccessibility 10% Very Low
  • Water Pollution 10% Very Low
  • Drinking Water Quality and Accessibility 90% Very High
  • Water Quality 90% Very High


Thousand Oaks Water Department

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2019 - March 2019), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Utility details

  • Serves: 50000
  • Data available: 2012-2017
  • Data Source: Purchased surface water
  • Total: 41

Contaminants That Exceed Guidelines

  • Arsenic*
  • Bromate*
  • Bromodichloromethane
  • Bromoform
  • Chloroform
  • Chromium (hexavalent)
  • Dibromochloromethane
  • Dichloroacetic acid
  • Nitrate*
  • Radium%2C combined (-226 & -228)*
  • Radon*
  • Total trihalomethanes (TTHMs)
  • Uranium*

Other Detected Contaminants

  • 3-Hydroxycarbofuran*
  • Aluminum*
  • Barium*
  • Bromochloromethane*
  • Cadmium*
  • Chlorate
  • Chromium (total)
  • Dibromoacetic acid
  • Dibromomethane*
  • Dichloromethane (methylene chloride)*
  • Dinoseb*
  • Fluoride*
  • Haloacetic acids (HAA5)
  • Manganese*
  • Mercury (inorganic)*
  • Molybdenum
  • Monobromoacetic acid
  • Monochloroacetic acid
  • N-Nitrosodimethylamine (NDMA)*
  • Nitrate and nitrite*
  • Nitrite*
  • Perchlorate*
  • Selenium*
  • Strontium
  • Strontium-90*
  • Trichloroacetic acid
  • Tritium*
  • Vanadium


Always take extra precautions, the water may be safe to drink when it leaves the sewage treatment plant but it may pick up pollutants during its way to your tap. We advise that you ask locals or hotel staff about the water quality. Also, note that different cities have different water mineral contents.

Sources and Resources

Check tap water safety for other cities in California

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