LAUSR

Comments: IRWD supports the inclusion of Issue No. 9, Consider/review TDS objectives for Rattlesnake, Syphon and Sand Canyon reservoirs based on the use for storage of recycled water. IRWD staff is committed to working with the Regional Water Quality Control Board staff to complete the consideration and revision of the water quality objectives for TDS [total dissolved solids] in the recycled water reservoirs. IRWD staff strive to maximize water recycling while maintaining the highest quality recycled water for our customers. Changing source water conditions due to drought and changing climate conditions as well as water conservation practices can impact the TDS concentrations of the influent sewage treated at IRWD’s recycled water plants. IRWD is currently undertaking a Sewage Treatment Master Plan which is examining ways to combine recycled water flows from two plants into a unified recycled water system. Combining recycled water from the two plants could lead to higher TDS levels in the combined system during sometimes of the year.