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Pacific Paperboard Products <br /> Page five <br /> material in the two containers is more than 99% by volume of the total nonwater <br /> wastes. The third storage container receives wastes from the poly-broke line. <br /> The wastes are predominantly plastics. It is estimated that plastics are more <br /> than 99% by volume of the total nonwater wastes. Pacific Paperboard Products <br /> reports that 3 to 4 loads of fibrous material and one load of plastics are hauled <br /> every day. <br /> Chemical composition; <br /> Limited tests were performed to determine if there were background levels of <br /> constituents which might contribute to a deterioration of groundwaters under <br /> the disposal site. The tests selected were related to drinking water standards <br /> because no other standards or discharge requirements have yet been set for the <br /> French Camp disposal site (see a later section for a description of the disposal <br /> site) . The constituents tested included cadmium, zinc, lead,_ mercury, and <br /> nitrate nitrogen. One set of samples was taken from a container on the centri- <br /> sorter line and one set was taken from a container on the poly-broke line (see <br /> Figure 1) . Samples of liquid were caught by gravity fall from weep holes along <br /> ,the bottom edge of each container. Samples were taken at 1:45 pm on October <br /> 31 , 1977 at which time each container was filled to approximately 1/2 of its full <br /> volume. The maximum possible contact time for the solids and liquid in the <br /> containers prior to sampling was 8 hours. Each sample was preserved and sealed <br /> according to standard procedures. The results of the analysis are presented in <br /> Table 1 . <br /> The drinking water standards for the selected constituents are: <br /> Cadmium - 01 mg/1 <br /> Zinc - 5.0 mg/l <br /> Lead - .05 mg/l <br /> Mercury - .002 mg/l <br /> Nitrate - 10.0 mg/l <br /> (a s nitrogen) <br /> All values except zinc are based on considerations of public health. The value <br /> for zinc is based on considerations of aesthetics. <br /> A comparison of the chemical analyses displayed in Table 1 with the values listed <br /> for drinking water standards results in the conclusion that the waste liquids do not <br /> contain sufficient concentrations to exceed comparable chemical drinking water <br /> standards. Therefore, the solid wastes from Pacific Paperboard Products do not <br />