TY - JOUR AU - Quinn, Nigel W.T. AU - Smith, Richard AU - Burt, Charles M. AU - Slavin, Tracy S. AU - Styles, Stuart AU - Mansoubi, Amir TI - Water seepage from unlined ditches and reservoirs JF - California Agriculture JO - Calif Agr Y1 - 1989/11/01 VL - 43 IS - 6 SP - 9 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v043n06p9 AB - Seepage losses in the San Joaquin Valley's Westlands Water District were estimated at 27,000 acre-feet a year, or about 2% of the district's water supply. Ditch configuration and construction techniques appear to influence seepage rates.