Laserfiche WebLink
<br />" <br /> <br />River, San Rafael River, ~~Elmo Creek, and the Big Sancly River. Measures by <br />which the indiviclual program goals should be obtainecl were specified only for <br />the authorizecl construction projects. All of the authorized and potential <br />projects are located in Figure 13. <br /> <br />.:::.. <br />N <br />...... <br />l\.) <br /> <br />According to a U.S. Government Accounting Office (GAO) Report in 1979, it <br />is doubtful that the Salinity Control Program as defined in PL 93-320 will <br />reduce the sslt in tha Coloraclo River as much as predicted. Furthermore, at <br />least six of the seventeen projects are questionable economically. For <br />example, Crystal Geyser ancl Las Vegas Wash, as formulated, have very high <br />costs and will have a "minor impact in reclucing the river's salinity . . ." <br />However, the GAO analysis only 8Xaminecl the projects in aggregate as formu- <br />.lated by the U.S. Department of the Interior,ancl did not adclress the fact <br />thai:'.inclividual 'c.omponents,.of.a 'Salinity cOntr,oJ.. pl:oject msy.incle.ell, be very... ,'. . <br />. ...,cost-effective while a total programiilay.tiot ..beeconamically viable.; 'There- . <br />.. .fofe, the -J:ogica>l- conclusion is that perhaps only selectecl portions of various <br />salinity control projects slloulcl '&econstr.uc.ted.- '., <br /> <br />. <br /> <br />t <br /> <br />The primary question left unanswered by PL 93-320 is to what extent shall. <br />salinity control programs be constructed or how much effort should be expended <br />in pursuit of the goals of this legislation. For example, without regard to <br />benefits and costs, the WPRS (USDI, BR, 1979a) presents data illustrated in <br />Figure 14 that inclicate the c1ifficulty of maintaining the 1972 salinity levels <br />at Impel:ial Dam. Preliminary analyses has clearly shown that several of the <br />pl:ojects noted in PL 93-320 have benefit cost ratios much less than one basecl <br />on annual damages of $450,000 per mg/l increase at Imperial Dam. <br /> <br />Appenclix B c1escribes each of the significant projects in the Upper Basin <br />which were specifiecl in PL 93-320. This discussion has been c1ividecl into <br />nonpoint ancl point source control projects. A summary of .the salt loacling <br />from the respective area ancl the currently estimatecl potentially controllable <br />salinity is given in Table 3. <br /> <br />~ <br /> <br />. <br />'. <br /> <br />~ <br /> <br />35 <br /> <br />..< <br /> <br />,',,'l.' <br />, ~ ~ <br /> <br />." <br /> <br />'. <br />