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TABLE 8 <br />ANALYTICAL RESULTS OF DISSOLVED ARSENIC <br />FORMER PILKINGTON NORTH AMERICA - LATHROP FACILITY <br />17100 MURPHY PARKWAY, LATHROP, CALIFORNIA <br />Sample ID or Type <br />Sample Date(s) <br />Sample Type <br />Result (mg/1) <br />J.R. Simplot Arsenic Detections (North Pond) <br />North Pond <br />01/17/13 <br />Surface <br />0.207 <br />North Pond <br />01/16/14 <br />Surface <br />0.200 <br />North Pond <br />01/15/15 <br />Surface <br />0.066 <br />North Pond <br />01/21/16 <br />Surface <br />0.130 <br />North Pond <br />01/19/17 <br />Surface <br />ND <br />J.R. Simplot Arsenic Detections (South Pond) <br />South Pond <br />01/17/13 <br />Surface <br />0.055 <br />South Pond <br />01/16/14 <br />Surface <br />0.130 <br />South Pond <br />01/15/15 <br />Surface <br />0.162 <br />South Pond <br />01/21/16 <br />Surface <br />0.179 <br />South Pond <br />01/19/17 <br />Surface <br />0.090 <br />J.R. Simplot Arsenic <br />Detections (West Pond) <br />West Pond <br />01/17/13 <br />Surface <br />0.080 <br />West Pond <br />01/16/14 <br />Surface <br />0.080 <br />West Pond <br />01/15/15 <br />Surface <br />0.025 <br />West Pond <br />01/21/16 <br />Surface <br />0.027 <br />West Pond <br />01/19/17 <br />Surface <br />0.042 <br />Rough & Ready Island Established Background Dissolved Arsenic Concentration <br />Calculated <br />06/19/05 <br />Wells <br />0.095 <br />MCL <br />- <br />- <br />0.01 <br />Notes: <br />concentrations reported in milligrams per liter (mg/1) <br />