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<br />FIGURE 15 - AMW-1 SPECIFIC CONDUCTANCE <br />1500 <br />V <br />A <br />L <br />U <br />E <br />• <br />Yearly Quarter <br />WATER QUALITY SAMPLING <br />1410 <br />D 1990 <br />O 1991 <br />~ 1es2 <br />1~7 1993 <br />1288 <br />afar <br />The following describes current sampling procedure. The order in which the <br />different wells are sampled is determined by the salinity of each well. The <br />well with the lowest salinity value is sampled first to protect against <br />contamination from higher salinity wells. After examining the condition of <br />the well, the cap is removed and the static water level is measured from the <br />top of the well casing and recorded. A one liter sample bailer is used to <br />remove five bailer volumes of water. The fifth bailer volume is used to rinse <br />the field sample containers. The sixth bailer volume is used to fill the <br />field sample containers. The seventh bailer volume is used to fill the sealed <br />bottle provided by the lab. The field samples are then analyzed and the <br />values recorded for temperature, pH and electrical conductivity. A <br />submersible pump is then used to evacuate the well of three well volumes as <br />calculated by the static water level and the total depth of the well. The <br />well is pumped the time needed then a grab sample is taken directly from the <br />pump discharge for field and lab analyses. Field analyses are again completed <br />. and recorded for temperature, pH and electrical conductivity as they were for <br />the first field sample. The lab Semple is stored in an insulated container <br />for transport. <br />PAGE 11 <br />