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October 21, 2014
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Montgomery County

Click on image to see water supply system diagram

*Note that diagram is simply a schematic representation of the major components of the water supply system. It is not drawn to scale, and symbols do not represent actual volumes or geographic orientation.

Your Water Supply

  • Water Source

  • Most of Montgomery County gets its water from the Washington Suburban Sanitary Commission (WSSC). Parts of northern Montgomery County bordering Frederick and Howard Counties, MD and Loudoun County, VA rely on individual wells.
    WSSC takes water out of the Potomac River at an intake upstream of Great Falls. They also have two reservoirs on the Patuxent River, the Tridelphia and T. Howard Duckett reservoirs, which have a combined storage capacity of 10.2 billion gallons.

  • Water Treatment

  • WSSC has two water treatment plants, the Potomac Water Filtration Plant and the Patuxent Water Filtration Plant, which can treat up to 285 and 70 mgd, respectively.

  • Water Quality
    Read the Consumer Confidence Report on WSSC's website

  • Contact Information

  • Address: Washington Suburban Sanitary Commission, 14501 Sweitzer Lane, Laurel, MD 20707
    Phone: 301-206-8861
    Fax: 301-206-7005

Link to WSSC's website:http://www.wssc.dst.md.us/


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