Water Purification / Distribution

Frozen Pipes - The Metropolitan Washington Council of Governments has information on preventing this from happening in your home on their Protect Your Pipes web page.

Request a Fire Hydrant Flow Test
Please complete the online Request for Fire Hydrant Flow Test.  Your submission will be reviewed and you will be contacted with information about the processing of your request.

Bulk Water Pamphlet
DWSU Lead and Copper Monitoring Summary
List of Water Treatment Plants

Facts About PFAS

  1. Notices
  2. Fluoridated Water Supplies
  3. Source Water Assessments
  4. Water Quality Reports



The Water Purification/Distribution Department is responsible for the operation of the County's water treatment plants and distribution systems.  

The County's primary water treatment facilities are staffed 24 hours per day, 7 day per week. Smaller satellite facilities are staffed to provide operator attention several hours per day, 7 days per week.  

This Department's certified operators provide routine daily operation of the County's water supply infrastructure to ensure that customers of the County's Public water systems receive water that continually complies with Federal Safe Drinking Water Act (SDWA) requirements.