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Private Property, No Trespassing. Water Rights on the Santa Cruz. Julia Fonseca. BA from Rice University Master’s degree in geology at the University of Arizona. 14 years with Pima County Flood Control District Hydrologist, geomorphologist and land manager Sonoran Desert Conservation Plan
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Private Property, No Trespassing Water Rights on the Santa Cruz
Julia Fonseca • BA from Rice University • Master’s degree in geology at the University of Arizona. • 14 years with Pima County Flood Control District • Hydrologist, geomorphologist and land manager • Sonoran Desert Conservation Plan • Membership: • The Arizona Native Plant Society • Arizona Riparian Council • Arizona Hydrological Society
The West Branch • Location • Silverlake Road and Ajo way • Mission Road and Cottonwood Lane History 1915 West Branch - East Branch Prevent destroyed the farmland Habitat intact
6 species of fishes originally including: Desert pupfish Gila topminnow Gila chub. None of these native fish remain. Potential for re-introduction Preservation Desert Pupfish Gila Topminnow Gila Chub
History • Mostly Farmland Until the 1960’s • Enchanted Hills wash • major drainage of the floodplain • “Bus barn" property owned by the county • Regeneration of mesquite and Blue Palo Verde Bosques
Plants • Relatively untouched species remain • Mesquites almost three feet across at the base • Rare AZ plant species • amaranth • Desert seepweed • Little barley • Tumamoc globeberry • Ruellia • Crucifixion thorn Ruellia Crucifixition Thorn
Flora Plant species in the West Branch Most plant growth is native.
Water Table Mesquite Trees - Good Indicator Water tables: *1920 – 30 feet *1990 – 130 feet Constantly Dropping Water Table
Water flows here about 30 days of the year Rainy season in June and July – Monsoon Season Most surface water diverted to main riverbed Flowing Water
Restoration • Riparian Restoration • Floodplain Saved • Park Development • Hydro-riparian restoration • Water doesn’t flow in the West Branch often
Works Cited • http://www.co.pima.az.us/cmo/sdcp/sdcp2/reports/WB/pflora.htm#anchor1283111 (Biological Values of the West Branch of the Santa Cruz River,With an Outline for a Potential Park or Reserve) • Philip C. Rosen • Julia Fonseca • Dr. Riley