Finding Your Water Quality

This water quality report provides information for all water customers whose drinking water is provided by the Sioux Falls Water Division. Our water comes from two different sources:

  1. the water plant owned and operated by the City
  2. and water purchased from the Lewis and Clark Regional Water System.

You can use this map to determine where your water comes from and what water quality data applies to your drinking water.

Map of the Lewis and Clark Regional Water Service Area

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Lead in Drinking Water

Sioux Falls Water Division has been testing for lead and copper in accordance with the EPA’s Lead and Copper Rule since 1992 and has consistently tested below the Action Level established in the rule.

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. The Sioux Falls Water Division utilizes pH adjustment of the treated water to minimize lead and copper levels. This process has shown to be effective by the continued low lead and copper levels at customers faucets we sample. It is still advised that when your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking.

If you are concerned about lead in your water, you may wish to have your water tested. You may call the Water Quality Concern Line at 605-373-6950 to request a lead-in-water sampling kit. In addition, information on lead in drinking water, testing methods, and steps you take to minimize exposure is available from the Safe Drinking Water Hotline: 1-800-426-4791.