A seepage study was made during 1989 on selected reaches of the Timpanogos, Wasatch, Sagebrush and Spring Creek, Upper Charleston, and Lower Charleston Canals in Wasatch County, Utah, to determine gains or losses in discharge. Fluctuations in discharge were adjusted using information from water-stage recorders operated at selected locations during each set· of measurements. The investigation showed a net loss of about 14.9 cubic feet per second in the Timpanogos Canal: the upstream reach gained about 2.0 cubic feet per second, the two middle reaches together lost about 14.1 cubic feet per second, and the downstream reach lost about 2.8 cubic feet per second. The Wasatch Canal showed a net loss of about 8.2 cubic feet per second: the upstream reach lost about 3.7 cubic feet per second, the middle reach showed no gain or loss, and the downstream reach lost about 4.5 cubic feet per second. The Sagebrush and Spring Creek Canal showed a net loss of about 0.5 cubic foot per second: the upstream reach gained about 0.6 cubic foot per second, the middle reach showed no gain or loss, and the downstream reach lost about 1.1 cubic feet per second. The Upper Charleston Canal showed a net gain of about 4.0 cubic feet per second: the upstream reach gained about 5.0 cubic feet per second, and the down-stream reach lost about 1.0 cubic foot per second. The Lower Charleston Canal showed a net gain of about 1.8 cubic feet per second: the upstream reach gained about 2.2 cubic feet per second, and the downstream reach lost about 0.4 cubic foot per second.
