Water Issues Handout

Water Issues Handout - BRAE 340 Irrigation Water Management...

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BRAE 340 1 Water Issues BRAE 340 - Irrigation Water Management Water Issues Population Growth Year California Population • Most growth will be in So. & Central Calif. - both arid areas • Increased population means increases many demands - Urban water use - Industrial water use - Recreation & the environment become more important - More food needed, which requires water to grow it Sets up competition: Urban vs. Ag vs. Environment 1990 22.9 million 2000 34.7 million 2010 40.0 million 2020 45.4 million 2030 51.9 million 2040 58.7 million Year SLO County Population Average Growth rate in SLO County (1990 to 2000): 14% Highest growth rate areas in SLO County (1990-2000): 77% Nipomo 62% Templeton 30% Paso Robles 26% Santa Maria 15% Cambria 1990 217,944 2000 254,818 2010 331,361 2020 329,329 2030 461,839 2040 535,901 Sources: Rand Corporation ( http://ca.rand.org/stats/popdemo/popproj.html ), SLO Tribune Urban Water Supplies 20 million + get at least some water from the SWP SWP has contracts to deliver 4 million acre-feet SWP can only deliver 2.4 MAF in a wet year and 1.1 MAF in a dry year More storage is needed o Los Banos Grande @ 1.75 MAF o
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