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. will result in lower proportions ofdissolved constituentswhile conserving the total chemical load of <br />the water. <br />In order to investigate the significance of relationships among flow, TSS and TDS in streams <br />monitored at the New Horizon 2 area, simple linear regression correlation analyses were performed <br />on flow, TSS and TDS values collected simultaneously at each surface.water site. Using flow as <br />the independentvariable, dischargewas regressed againstTSS and TDS. Also, using TSS as the <br />independent variable, TSS was regressed against TDS. TSS showed little to no correlation with <br />flow. The range of correlation coefficients (r2 values) determined for flow versus TSS during the <br />irrigation season were from .000 to .298. For periods between the irrigation seasons, rz values <br />ranged from .000 to .447. These calculated correlation coefficients indicated that discharge <br />(instantaneous measurements) has no relationship with levels ofTSS in the monitored streams at <br />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 (r2 > .75) at sites SW-N 103 and at <br />SW-N7. However, the period of record forthe data sets analyzed for these two sites was less than <br />two years. During the irrigation seasons, flow correlated well with TDS (rz > .75) at Sites SW-N 102 <br />and SW-N105. Again, data analyzed for both these sites were limited (July, 1986 through <br />December, 1987). Considering the analyses performed on the large data sets for both seasons <br />collected at both SW-N1 and SW-N3 (1980 through 1987), it was concluded that flow had little <br />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 />(Revised 6/28/01) 2.04.7-33 <br />