The Robert A. Weese Filtration Plant is owned by the City of Oceanside and operated by Oceanside’s Water Utilities Department, but the facility is located off of Silverleaf Lane in the Gopher Canyon area and is within the boundaries of the Rainbow Municipal Water District. The Rainbow Municipal Water District will be commencing the staff portion of the design phase for a permanent connection to the Weese treatment plant. A 5-0 Rainbow board vote Aug. 22 authorized district staff to proceed with the design for an interconnection with the Weese Filtration Plant.