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<br />j <br /> <br />. <br /> <br />. <br /> <br />Evan D. Dildine, P.E., Technical Secretary <br />Water Quality Control Commission <br />May 22, 1979 <br /> <br />-3- <br /> <br />~ <br />...... <br />~ Federal Clean Water Act, the facts are that at the concentrations actually <br />found in the Colorado River at present or those contemplated as maximum <br /> <br />limits have minimal effect on the general accepted goals of the Federal <br /> <br />Act, i.e., fishable, swimmable streams which are suitable for domestic <br /> <br />water supply. <br /> <br />The Colorado River Salinity Control Forum was organized to allow the <br /> <br />seven states in the Colorado River Basin to work together to reduce the <br /> <br />TDS in the river system. The seven states are Arizona, California, <br /> <br />Colorado, Nevada, New Mexico, Utah, and l,yoming. An additional and <br /> <br />certainly not silent partner is the Federal Government. The Federals <br /> <br />involve the Depat'tment of Inter'ior, Department of AgricuHurc" and <br /> <br />Environmental Protection Agency. In 1944 a treaty was signed vlith <br /> <br />nexico agreeing to del'iver 1.5 acre feet of vlater each year. No <br /> <br />minimum level of sal'inity \Vas contained in that treaty. <br /> <br />The Bureau of Reclamation in the Department of Intey'ior 'is re- <br /> <br />sponsible for structural solutions proposed to minimize salt contribu- <br /> <br />tion to the River. There are a number of projects proposed for study <br /> <br />which wi 11 assist in lIIeeting the standards which \'iere developed by the <br /> <br />1'01'1.1111. One of the structural solutions nOVI under construct-ion is a de- <br /> <br />salting plant at YUllla, Arizona. Other structural so'/uUons are either <br /> <br />under construction or close to starting, one of which is the canal <br />