Is Williston Tap Water Safe to Drink?

Last Update12:53 pm, April 8, 2021

The estimated price of bottled water

$0.78 in USD (1.5-liter)

User Submitted Ratings for Williston Tap Water

  • Drinking Water Pollution and Inaccessibility 50% Moderate
  • Water Pollution 75% High
  • Drinking Water Quality and Accessibility 50% Moderate
  • Water Quality 25% Low

The above data is comprised of subjective, user submitted opinions about the water quality and pollution in Williston, measured on a scale from 0% (lowest) to 100% (highest).

Can You Drink Tap Water in Williston?

No, tap water is not drinkable.

Tap Safe includes data from many publicly available sources, including the WHO (World Health Organization), CDC (Center for Disease Control), and user submitted databases, but unfortunately there's not enough data about Williston.

To see user submitted ratings of the water quality for North Dakota, see the "User Submitted Ratings" box on this page.


There are three federal government offices that provide assistance to citizens who are concerned with tap water quality and safety in the United States. They are the Environmental Protection Agency, the Public Health Service and the U.S. Food and Drug Administration. Together these three organizations work to protect your right to healthy water. The purpose of their existence is to ensure that the public health and safety are maintained. They also work to regulate manufacturing facilities, overfills and prescription drugs that may be in the supply of tap water.

The Environmental Protection Agency is part of the U.S. Department of Interior. Their mission is to protect the environment from harm. The E.P.A. works closely with states and municipalities to ensure the quality of water that reaches homes and business. Their primary goal is to set and enforce environmental standards. The state department works closely with them as well.

There are several envi


City of Williston

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the North Dakota Department of Health, 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: 26426
  • Data available: 2012-2017
  • Data Source: Surface water
  • Total: 20

Contaminants That Exceed Guidelines

  • Bromodichloromethane
  • Chloroform
  • Chromium (hexavalent)
  • Dibromochloromethane
  • Dichloroacetic acid
  • Radium%2C combined (-226 & -228)
  • Total trihalomethanes (TTHMs)
  • Trichloroacetic acid

Other Detected Contaminants

  • Barium
  • Chromium (total)
  • Dibromoacetic acid
  • Fluoride
  • Haloacetic acids (HAA5)
  • Molybdenum
  • Monochloroacetic acid
  • Nitrate and nitrite
  • Pentachlorophenol
  • Selenium
  • Strontium
  • 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.

Check tap water safety for other cities in North Dakota

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