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<br />.1 <br /> <br />Effects on Colorado River <br />(annual average) <br /> <br />New <br />Mexico <br /> <br />Total <br /> <br />Stream depletion (acre-feet) <br />Changes in salt load (tons) <br />Changes in salt concentration at Imperial <br />Dsm in milligrams per liter (mg!L) <br />From concentrating effects of stream <br />depletion--an increase <br />From change ln salt 10ad-a decrease <br />Net increase in salinity levels <br /> <br />Project Costs <br />(October 1985 priceg'in millions) <br /> <br />Estimated construction cost <br />Estimated annual operation & <br />maintenance cost <br /> <br />*509.3 <br /> <br />3.6 <br /> <br />Total Benefit-Cost latio <br /> <br />.' <br /> <br />030~ <br /> <br />. <br /> <br />10 <br /> <br />Colorado <br /> <br />120.700 <br />-14.720 <br /> <br />34.100 <br />8.250 <br /> <br />14.5 <br />-1.5 <br />13.0 <br /> <br />4.1 <br />0.8 <br />4.9 <br /> <br />Project Benefits <br />(in millions) <br /> <br />Estimated total <br />benefits <br />(average annual) <br /> <br />1.55:1 <br /> <br />*35.6 <br /> <br />154.800 <br />-6.470 <br /> <br />18.6 <br />-0.7 <br />17.9 <br />