The Helm Canal is an aqueduct in Clovis, California, involved in a series of water transfers to eliminate selenium bearing brackish waters to the San Joaquin River to bypass agricultural deliveries.
The Helm canal was previously used to irrigate numerous properties that were in agricultural usage and are presently converted to urban uses such as the site of the Clovis Towne Center. Topography in the locale of the Helm Canal is generally very level having been formed by alluvial fans. The elevation in the vicinity of the Helm Canal is approximately 350 ft (110 m) to 375 ft (114 m) above mean sea level datum.
- Michael K. Saiki, Barbara Martin, et al., Effects of an Agricultural Drainwater Bypass on Fishes Inhabiting the Grassland Water District and the Lower San Joaquin River, California, North American Journal of Fisheries Management, vol. 21, issue 3 pp 624-635 (2001)
- Phase I Environmental Site Assessment, Clovis Towne Center, Clovis, California, Earth Metrics Inc report 10283, October, 1989
- U.S. Geological Survey, Clovis, California, 7.5 Minute Quadrangle, 1964, photorevised 1972) and groundwater generally flows to the southwest
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