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<br />, <br /> <br />r - - - <br />, ., <br />~ U 1/ ~: <br /> <br />. <br /> <br />P R I N C I P L E S <br /> <br />. <br /> <br />S TAN D A R D S - G U IDE L I N E S <br /> <br />March I. 1967 <br /> <br />WESTERN STATES WATER COUNCIL <br />7000 N_ E. Airport Way <br />Portland, Oregon 97218 <br />