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<br />001337 <br /> <br />impact of authorized and proposed projects. In terms of that memo- <br />randum, conditions are designated as: <br /> <br />la - No additional Federal developments after projects now <br />under construction are completed. <br /> <br />Ib - Construction of Federally authorized and known private <br />developments. <br /> <br />lc - Full utilization of the basin water supply. <br /> <br />3b - Add salinity control measureS and augmentation from weather <br />modification, desalting, vegetation management, and geo- <br />thermal development to condition Ib above. <br /> <br />3c - Add salinity control measures and augmentation,to condi- <br />tion lc above. <br /> <br />Various levels of development corresponding to the years 1980, 1990, <br />and 2000 were used with the appropriate conditions. In addition, <br />runs were made to evaluate the impact of initial salinity control <br />projects and weather modification. <br /> <br />Inputs for projects involving newly irrigated lands are given for <br />a zero and 2-tons-per-acre annual pickup rate of dissolved solids. <br />All runs were made using the 2-tons-per-acre rate and in some caSeS <br />were replicated at the zero rate. Future developments included in <br />the model runs are given in Table IX. <br /> <br />~~D is included since it is treated as a specified export. Only <br />two levels are used: <br /> <br />Until CAP is built and operational, ~~D withdrawals correspond <br />to the 1970 historic level of 1.2 million acre-feet/year, <br />Table C-21. <br /> <br />\~en CAP is operational, ~n'/D is reduced to 550,000 acre-feet/ <br />year using the same monthly distribution as 1970, Table XV. <br /> <br />The CAP is also treated as an export. Annual values are selected <br />on the basis of the zero change in storage concept previously <br />described. Monthly distributions are assumed identical to those <br />used for r~'/D. The maximum annual diversion is 2,172,000 acre-feet <br />based on a 3,000-cfs canal capacity. [1, p 52] <br /> <br />Imperial target flows are never allowed to go below 5.7 million <br />acre-feet/year. \~en this level is used, the 1970 present modified <br />values are used. l~len target flows are greater, annual values are <br /> <br />27 <br />