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coefficients indicated that discharge (instantaneous measurements) has no relationship with levels <br />of TSS in the monitored streams at the New Horizon 2 mining area. <br />Flow correlated with TDS fairly well at some sites, but the variability of the correlation results at all <br />sites indicated that the relationship between these two parameters was not strong. For instance, <br />during periods of no irrigation, flow correlated strongly with TDS (rz > .75) at sites SW-N103 and <br />at SW-N7. However, the period of record for the data sets analyzed for these two sites was less <br />than two years. During the irrigation seasons, flow correlated well with TDS (rz > .75) at Sites <br />SW-N102 and SW-N105. Again, data analyzed for both these sites were limited (July, 1986 <br />through December, 1987). Considering the analyses performed on the large data sets for both <br />seasons collected at both SW-N1 and SW-N3 (1980 through 1987), it was concluded that flow had <br />little correlation with TDS. <br />Finally, TSS did not correlated with TDS. A negative value for the correlation coefficient (rz) that <br />approaches 1.0 (>.750) would indicate that TDS is inversely related to TSS. For each site during <br />both seasons, the correlation coefficient determined using the simple regression and correlation <br />technique were not negative as expected, never exceeded .600, and ranged from .007 (SW-NI, <br />irrigation season) up to .593 (SW-N6, non-irrigation season). <br />Based on the aforementioned results, it was concluded that discharge (flow) had no relationship <br />with TSS. It should be noted that TSS values were determined by an outside laboratory using a <br />small yet proportionally divided portion of each water sample taken at each site. However, <br />considering the magnitudes of TSS determined for sites at the New Horizon 2 mining area (10 to <br />100 mg/I), the laboratory analyses were well within reason. <br />Discharge probably had some influence (relationship) on TDS concentration, but the regression <br />analyses for all sites during both seasons indicated that the relationship was inconsistent and still <br />inconclusive. Finally, there appeared to be no relationship between TSS and TDS. TSS values <br />have only occasionally exceeded 500 mg/I at any monitored site, likely resulting in very few <br />instances where the suspended solids in the flow influence TDS by adsorbing ions and reducing <br />the dissolved chemical load. <br />(Revised 25 Jul 2002) 2.04.7-35 <br />