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between the flow and conductivity (Figure C-13). No long-term trend seems to be occurring in <br />Johnson Gulch (001) runoff water quality. <br />Figure C-14 presents conductivity concentrations versus time for NPDES site 002. As <br />seen in previous years, there is a decrease in conductivity in spring due to increased runoff, and then <br />conductivity rises sharply when the flow decreases. Figure C-15 shows a good inverse relationship <br />between flow and conductivit)~ for this site. <br />The conductivity values for NPDES site 006 for 1994 range from 335 to 1510 umhos/cm <br />(Figure C-16). Conductivity values indicate a rising trend from March through June as would be <br />expected. Flow versus conductivity for site 006 is presented in Figure C-17 and illustrates the <br />inverse relationship between flow and conductivity. <br />TDS, conductivity and major constituents increased as the ground water contribution <br />became a lazger pomon of the flow. The values were all within natural ranges. No long-term trends • <br />are indicated by the major constituents. <br />5.3 OTHER CONSTITUENTS <br />Field pH values for all sites were very similaz. Values ranged from slightly below neutral <br />to a pH of 9.0. These values were consistent throughout 1994. Other constituents analyzed showed <br />little change with all minor constituents within their natural ranges. Al] values addressed in this <br />report above permitted discharge levels have been addressed in the quarterly NPDES discharge <br />reports (DMA's) and justifications for those values, i.e. storm water, snow cover melt-out, etc., have <br />been submitted to the proper regulatory authorities. <br />The iron concentrations observed in 1994 in the surface water for this readily available <br />constituent are all within the natural range for these sites. • <br />TR-6 S <br />5-2 (Revised 09/2 ] /95) <br />