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Distribution System Optimization and Main Cleaning

Confluence has been involved in numerous projects focusing on distribution system water quality optimization.  Working with large, medium, and small systems around North America, Confluence has helped these systems meet national and local regulatory requirements while balancing aesthetic water quality and distribution system operational goals. By taking a holistic view that addresses finished water quality, pipe scale stability, and O&M practices, we can help identify water quality risk factors and prioritize mitigation strategies. Using our significant field experience, we can help plan and implement strategies and provide training for field and utility crews.

Melinda Friedman  directed teams of national experts and developed two of the leading distribution system optimization industry Guidance Manuals:

These manuals were used by the AWWA Partnership for Safe Water to develop a national, voluntary, distribution system water quality optimization program consisting of numeric criteria and self-assessment tools for continuous improvement.

Members of the Confluence team have also worked closely with individual utilities to help them assess impacts of their current treatment, operations, maintenance, construction, engineering, and monitoring programs on distribution system water quality.  Specific clients include:

  • City of Flint, MI
  • Cities of Woodland & Davis, CA
  • York Region and Town of Newmarket, ON
  • City of Hamilton, ON
  • Willamette Water Supply Program, OR
  • City of Tallahassee, FL
  • Park City Municipal Corporation, UT
  • City of Longview, WA
  • City of Turlock, CA
  • Eugene Water and Electric Board, OR
  • City of Everett, WA
  • City of Bellevue, WA
  • Anchorage Water and Waste Water Utility, AK
  • City of Issaquah, WA
  • Cincinnati Water Works, OH
  • City of Calgary Waterworks, AB
  • City of Mercer Island, WA
  • City of Lacey, WA
  • City of Hillsboro, OR

 

Ice pigging

Ice Pigging

Training Flushing Crews

Training Flushing Crews

Assessing Swabbing Performance

Assessing Swabbing Performance