Metropolitan Operated District for Sewage Effluent - Irrigation Water Exchange

• Main Authors: Cluff, C. Brent, DeCook, K. James
• Other Authors: Water Resources Research Center, The University of Arizona, Tucson
• Language: en_US
• Published: Arizona-Nevada Academy of Science 1974
• Subjects: Hydrology > Arizona.; Water resources development > Arizona.; Hydrology > Southwestern states.; Water resources development > Southwestern states.; Water reuse; Irrigation water; Water conservation; Water supply; Water sources; Sewage treatment; Reclaimed water; Arizona; Water utilization; Planning; Water wells; Irrigation wells; Water management (applied); Alternative planning; Alternative water use; Groundwater; Tucson (Ariz)
• Online Access: http://hdl.handle.net/10150/300334

From the Proceedings of the 1974 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 19-20, 1974, Flagstaff, Arizona === A plan for the reuse of sewage effluent is proposed for the city of Tucson, Arizona. Several kinds of use would be possible, but utilization for irrigation of existing farmland in the Avra-Marana area seems particularly attractive for several reasons: (1) conveyance can be accomplished by gravity flow, (2) no tertiary treatment is required for the presently grown crops, (3) the nutrients in the effluent would be better used, and (4) effluent use would reduce the pumpage of high quality groundwater, conserving it for municipal or other uses. An exchange of wastewater for groundwater for use in the city system is seen as a good alternative to the present practice of the city purchasing farmland in Avra valley in order to acquire the groundwater for conveyance to the Tucson basin. Objectives to maximize the quantity and efficiency of wastewater use may not appear compatible with the profit maximization motive of the individual farmer, and suitable provisions will have to be written into wastewater sales agreements to assure coordination between user and supplier.