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• 5.0 SURFACE-WATER QUALITY <br /> Samples were collected from active sites 001, 002, 011, 013, 017 and S-1 during <br /> 1999. Analytical results for these surface water samples are presented in Table C-1 (page <br /> C-25). The more frequently measured parameters are presented with the first series of <br /> values with the less frequent measured parameters being in two separate groups at the <br /> end of Table C-1. NPDES sites 003, 005, 006, 008, 009, 010, 012, 014, 015, 016, 019 and <br /> 020 had no discharge during 1999 and, therefore, no data are presented. <br /> 5.1 TSS <br /> Figures C-5, C-7, C-9, C-11 and C-13 present plots of total suspended solids (TSS) <br /> versus time for the sites 001, 002, 011, 013, 017 and S-1, respectively. Some sites were <br /> grouped together on the same plot if they are located in the same area. The 1999 TSS <br /> values are similar to those previously observed from sites NPDES 001 and NPDES 002, <br /> except that there were no high values due to the reduced peak flows. Figure C-9 shows <br /> small TSS values for sites 011 and 013 in 1999. The TSS concentrations for sites 017 and <br /> S-1 were also small in 1999. Plots of flow versus TSS for the same sites are presented in <br /> Figures C-6, C-8, C-10, C-12 and C-14. As expected, a general increase in TSS for an <br /> increase in flow is seen in these plots for the historical data from these sites with the 1999 <br /> data plotting on the lower left portion of the graph due to low flows. <br /> 5.2 CONDUC7IMY <br /> The conductivity versus time plot for site NPDES 001 shows a similar, but slightly <br /> • higher, range of conductivity in 1998 and 1999 to the range observed over the previous <br /> 5-1 <br />