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o ,'-) ) ~ a:l ... IMPACTS TO CAP WATER SUPPLY The study showed CAP to pump an average 1,494,000 acre-feet annually for 64 traces over the period 1986 through 2050. Average CAP pumping for each year from 1986 through 2050 is illustrated in figure E-3. Figure E-3 shows a consistently declining average CAP pumping from 1992 through about 2040. After 2040, the average pumping appears to stabilize through 2050. CAP does not experience a declared shortage until 2024 when one is declared among 64 traces. From 2024 through 2050, CAP experiences increasing occurrences of shortage (see figure E-4). CAP incurred declared shortages most frequently (12 times) in 2049. I I Occurrences of declared surpluses and of CAP pumping above its normal schedule behave similarly and are illustrated in figures E-5 and E-6. These frequencies generally decline from 1992 through about 2025. After about 2025, the frequencies remain at about 4 and 6, respectively, of 64 possible for declared surplus and pumping above the normal schedule. IMPACTS TO METROPOLITAN WATER SUPPLY The study showed Metropolitan annual pumping to average 634,000 acre-feet for 64 traces over the period 1986 through 2050. Average Metropolitan pumping may be seen in figure E-l to decline from 1986 through 2030. As it declines, the rate of decrease becomes less as 2030 is approached. After 2030, Metropolitan average annual pumping remains between 545,000 and 561,000 acre-feet through 2050. Figure E-2 illustrates the frequency of Metropolitan's pumping above its normal schedule. Similarly to the decline in average pumping, pumping above its normal schedule declines in a like pattern through 2028. After 2028, pumping above the normal schedule remains at roughly 6 occurrences of 64 possible. IMPACTS TO ROBERT B. GRIFFITH (SNWP) WATER SUPPLY The current study showed SNWP 64 traces 1986 through 2050. figure E-7. annual pumping to average 240,000 acre-feet for Average annual SNWP pumping is illustrated in