The water main shall be located more than 5 feet from other non-sanitary sewer utilities, measured center-to-center. An edge-to-edge separation of 3 feet may be allowed where no reasonable alternative exists, if approved by the PUD staff. Water mains must be deflected vertically, or vertical bends must be used, as necessary, to provide 6-inch minimum crossing clearance with other utilities.
Distance between water main and sanitary sewer utilities shall be in accordance with Washington State regulations.
To facilitate coordination with other utilities and PUD staff review of proposed water facilities, water main profile drawings must be included for all mains 12 inches or larger in diameter. Profile drawings should show all crossings with other utilities.