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<br /> <br />STATE OF CALIFORNIA-RESOURCES AGENCY <br /> <br />DEPARTMENT OF WATER RESOURCES <br />P,O,60x6598 ' <br />LOS ANGELES <br />90055 <br /> <br />GEORGE OEUKMEJIAN, Gov8mo, <br /> <br />Q,. <br />-.. <br />, ., <br /> <br />JUN 2 7 1984 <br /> <br />~~ Colorado River Basin <br />~ Salinity Control Forum <br />~ 106 West 500 South, Suite 101 <br />~ Bountiful, Utah 84010 <br /> <br />Attention: Mr. Jack A. Barnett <br />Executive Director <br /> <br />As requested in the June 7, 1984, letter to the Department from <br />the Colorado River Basin Salinity Control Forum, we have <br />reviewed the "Proposed Report on the 1984 Review - Water Quality <br />Standards for Salinity Colorado River System". We find the <br />report to be comprehensive and informative. <br /> <br />We support the Forum's plan of retaining the sal~nity numeric <br />criteria, and continuing to use them during the next three-year <br />period. These numeric criteria consist of total dissolved <br />solids concentrations for the COlorado River of: <br /> <br />Below Hoover Dam <br />Below Parker Dam <br />Imperial Dam <br /> <br />723 mgjL <br />747 mgjL <br />879 mgjL <br /> <br />Concerning the LaVerkin Springs Unit (page 47) and the diversion <br />of saline waters from these springs into evaporation pondS, we <br />question the use of clay liners. Because of the potential for <br />base exchange between saline waters and clays, the integrity of <br />the liners could be threatened. Therefore careful consideration <br />should be given to selecting the appropriate type of liner <br />material to mitigate this potential problem. <br /> <br />For further information, you may wish to contact Sanford L. <br />Werner at (213) 620-4836. <br /> <br />Sincerely, <br /> <br />, {1iS~t:f <br /> <br />~Ck J. Coe, Chief <br />Southern District <br /> <br />8 <br />