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Main Basin Groundwater Capacity <br /> 250 —Total SIQraLf SavalltY= _ <br /> 254,000 acre-feet <br /> 200 \. . <br /> m Zone 7 Operational Storage= <br /> 126,000 acre-feet <br /> m 150 <br /> a <br /> c <br /> Historical Low= <br /> 5• 100• '.. 128,000 acre-feet <br /> ti <br /> Of <br /> `o <br /> ▪ 50 <br /> critical <br /> Recent <br /> dry year 6-year drought Droyght <br /> Vl \O I", 00 01 0 c1 N M a Vl 10 I", 00 01 0 rl N 00 Ill 10 N CO 01 0 - N on .4 N 10 N 00 01 0 <br /> N. N IN IN N CO CO 00 CO 03 CO CO 00 00 CO 01 01 01 01 01 01 CO 01 01 01 0 0 0 0 0 0 0 0 0 0 NI <br /> N 01 01 01 01 01 01 01 01 01 01 001 01 01 CO 01 N 01 01 01 01 01 01 01 01 0 0 0 0 0 0 0 0 0 0 0 <br /> Water Year <br /> —Inventory Method —Nodal Method — — High Used for Seasonal Storage — — Historical Low <br /> Operational Groundwater Storage, % of Capacity <br /> 100% 126,000 Acre-FT <br /> 95% I _. ... <br /> 90% Recent Historical Max, 1983 <br /> 85% <br /> 80% 76% <br /> 75% 72% 71% <br /> 68% <br /> 70% 67% 63% 67% 6 '0 <br /> 65% 84,307 Acre-FT <br /> 60% ! 56% <br /> 55% 59% <br /> 50% 53-0 <br /> 45% <br /> 40% Recent Historical Min, 1992 <br /> 35% <br /> 30% <br /> 25% <br /> 20% <br /> 15% <br /> 10% <br /> 5% <br /> 0% <br /> 0 Acre-FT <br /> 2000 2001 2002 2003 2004 IVA 2006 2007 2008 2009 2010 <br /> Page 6 of 10 <br />