Laserfiche WebLink
<br />-. <br />. <br />I <br />I <br />. <br />I <br />I <br />. <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I. <br />I <br />I. <br />I. <br /> <br />3672 <br /> <br />MEMOMNDUM <br /> <br />COLORADO WATER CONSERVATION BOARD <br />,. William McDonald <br />Director <br /> <br />TO: <br /> <br />Dan Law <br /> <br />FROM: <br /> <br />Dean Stindt tl'J <br />V <br /> <br />DATE: November 2, 1981 <br /> <br />SUBJECT: Cumulative Cost-Effectiveness Analysis for Various <br />Salinity Control Proposals <br /> <br />The subject analysis is presented in two parts. The first <br />part lists all salinity control proposals for which cost-effective- <br />ness determinations have been made. Many of these determinations are <br />very preliminary and subject to change as proposals are modified or <br />more information becomes available. The various proposals are listed <br />in order as they decrease in cost-effectiveness. The agency respon- <br />sible for developing individual proposals has been identified and, <br />where applicable, the title and date of the source document has been <br />included. Since planning on many of the projects was initiated <br />several years ago, the cost estimates used are now outdated. All <br />costs, for the purpose of this analysis, have been updated to <br />July 1981 levels using the Bureau of Labor Statistics-Consumer Price <br />Index Historical Table (1967=1.00). <br /> <br />The second part of the analysis graphically depicts the cumulative <br />cost~effectiveness ($lOOO/mg/L/gr) for all proposals and the resultant <br />cumulative reduction in salt concentration (mg/L) at Imperial Dam. <br />It should be noted that several of the less cost-effective proposals <br />represented on the graph have been temporarily deferred due to pbor <br />cost~effectiveness. <br /> <br />Salinity control projects have been considered by the Bureau <br />of Reclamation for the Crystal-Geyser Unit and the Colorado River <br />Indian Reservation. The proposal for the Crystal-Geyser Unit is no <br />longer being considered due to poor cost-effectiveness. It has also <br />been determined that irrigation return flows from the Colorado River <br />Indian Reservation do not contribute to the salt load in the Colorado <br />River so that further consideration for this project has been dis- <br />continued (USBR-Concluding Report-October 1979). Neither of these <br />Units was considered in this analysis. <br /> <br />DS:cs <br /> <br />-5- <br />