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October 20, 1982 <br /> Project 116-1.3 <br /> - 3 - <br /> a water laboratory certified by the California Department of Health <br /> Services. Table 3 summarizes all groundwater observations and analyses <br /> at Monitoring Wells #7 and #9. <br /> 5 <br /> TABLE,3 WELL AND ANALYTICAL, DATA <br /> Well Number <br /> r <br /> #7 #9 <br /> Total Depth 125' 121' <br /> Well Elevation 43' 41' <br /> Groundwater Elevation -30.3' -28.1' <br /> PH 7.6 7,7 <br /> Electrical Conductivity 800 790 <br /> Total Hardness as CaCO3 (mg/1) 288 338 <br /> Bicarbonate Alkalinity as CaCO3 293 202 293 <br /> Iron (mg/1) 6.1 .5.4 <br /> Barium (mg/1) 0.6 0.6 <br /> Strontium (mg/1) 0.75 0.88 <br /> Arsenic (mg/1) <0.O1 <0.01 <br /> Sulfate (mg/1) 52 39 <br /> Chromium (mg/1) <0.05 <0.05 <br /> Zinc (mg/1) 0.09 0.06 <br /> Nickel (mg/1) 0.07 0.05 <br /> Cadmium (mg/1) - <0.05'. <0.05 <br /> Chloride (mg/1) 72 56 <br /> Calcium (mg/1) 66; 76 <br /> Magnesium (mg/1) 30 36 <br /> Total Dissolved Solids (mg/1) 450 4004 <br /> Note: < = less than <br /> Soil samples were ,dollected approximately 500 feet from all four s <br /> of the active working face of Group 1 Disposal Trench #3- Table ,4 <br /> summarizes the analytical results obtained from extraction tests- on _ <br /> these samples. <br /> TABLE 4 - SOIL ;ANALYSIS <br /> 500' North South 500' East 500' West <br /> Strontium (mg/1) 0.3 0.3 0.8 0.6 <br /> Barium (mg/1) <0.5 < .5 <0.5 <6.5 <br /> Note: < = less than <br /> GBetacAssociates ��,/ <br />