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<br />r10T <br /> <br />Table 5. - Significant long-term trends in concentration (mg/(L .a)) by log regression. Associated trends (kg/(s'a)) for <br />solute loads are in parentheses - Continued <br /> <br />PERlOD <br /> <br />SE~SO" <br /> <br />CALCIUM <br /> <br />MAGNESIUM <br /> <br />SODIUM <br /> <br />CHLORIDE <br /> <br />SUlFAT'E <br /> <br />BICARBONATE <br /> <br />SUM OF SI X IONS <br /> <br />---------------.-------.---~---------------------------._--._--------------.---.-----------------.--.--------.--._---------------. <br /> <br />SAN JUAN BASIN <br /> <br />'" <br />~ <br /> <br />STATION 9379500 <br />1929-61 DEe-MAR <br />MAY-';UNE <br />AUG-NQV <br /> <br />SAN JUAN RIVER NEAR BLUFF, UTAH <br />,09( .003) <br />-.07 ( -.(12) <br /> <br />.3 t( <br />.06( <br />.221 <br />lOW~R COLORADO BASIN <br /> <br />.0(9) <br />.0101 <br />.009) <br /> <br />.471 -.086) <br /> <br />.361 -.(15) <br /> <br />- I .38 ( -. 056) <br /> <br />STATtON 9380000 - COLORADO R AT lEES FERRY, AZ. <br /> <br />t927-61 DEO-MAR -.29( -,056) -.38! -.072} -,.S9( -.305) <br /> MAY-JUNE .4 J( .539) .92( t .2091 <br /> AUG-NOV .57( , 16t I -.22( -.OS4} - .52 t -.124 ) 1.09f .260) <br />STATION 9402500 - COLORADO R. NEAR GRAND CANYON, <br />1925-61 DEe-MAR . 11( .022 ) - It( -.0221 ,29( -.060) -t.01( -.209) .3S( .079) <br /> MAY-.JUNE .50( .659) t .64 ( 2,178) <br /> AUG-NOV ,54\ -.141 ) .9S( .250) <br /> <br />-1.80( -,3411 <br /> <br />'2..07< 2.748) <br /> <br />