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Office of Criminal Investigations <br /> Photographic Log <br /> Thatcher Chemical of California, Stockton <br /> Photo#: 43 Photo#: 44 <br /> Photographer: Bonny Lew Date: 1112812018 Photographer: Bonny Lew Date: 11/28/2018 <br /> Ayy <br /> o _ <br /> �'•". <br /> t . t <br /> DSCN 1936 DSCN 1937 <br /> View of open-top, blue rectangular container placed under piping View of the area and container prior to collecting Sample TCS-08. <br /> attached to Sodium Hypochlorite tank in the Powell The sodium hypochlorite tank is the large white container on the <br /> Machine/Bleach Manufacturing Room in the warehouse. right in the photo. <br /> This view shows pH strips used to measure the pH of the solution <br /> in the blue container, which was collected as Sample TCS-08. <br /> The pH strips measured the pH of the solution to be approximately <br /> 14. In the laboratory, the pH was measured as 12.87. <br />