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<br />Q <br />Q <br />\,."j <br /> <br />,- <br />, <br /> <br />substftuted _!'lera judged appropriate. Detal1ed statements of assumptions <br />and prOCedures employed are proviced by Gardner. <br /> <br />4. <br /> <br />Tne model updates and extends the earlier analysts of Leathers and Young. <br /> <br /> <br />Cablegatfon is a new technology, consisting of a mo.....1ng plug 1n a gated <br /> <br />s. <br /> <br />pipe. <br /> <br />The plug 15 slowly released co." the pipe by a cable on an <br /> <br />automatic wfnch, permftting ....ater to no.. out the gates tnto furrows as <br /> <br />the gates are uncovered by the plug. <br />6. The capitalized impact of changes 1n net producer incomes. not explic1tly <br /> <br />displayed, would clearly be sfgnificant. <br /> <br />7. The technical options analyzed in table 1 and the contrel strategies in <br /> <br />tables 2, 3 and 4 are all allocathely efffcient. 1n that for each, net <br /> <br />sac fa' cost per ton of salt removed is less than dOlolnstream carnages <br /> <br />avoided. Ho_ever, priorities for a basln-wide policy shoula consider the <br /> <br />cost effectiveness of abatement strategfes elsewnere. <br /> <br />8. Carried to 1ts logfcal conclusion. a full Upper Basfn liatl1l1t)' for <br /> <br />dOlolnstream salfn1ty damages woulc: result in term1nation of irrfgatfon of <br /> <br />f1elc: crops on the hfgh salt-loading lands character1stic of the Upper <br /> <br />Colorado River Basin. <br /> <br />Thfs follows because, acceptfng our revised <br /> <br />estimates of Lo_er Basin Damages. the downstream carnages of 126 per ton <br /> <br />(S130 per upstream acre) are a.ocut 2.6 tfmes larger than the average <br /> <br />upstream net incomes of $50 per acre. <br /> <br />23 <br />