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5.1.4 Copper <br /> Table 8 presents the copper summary statistics by well for the Squaw Gulch data. <br /> Table 8. Squaw Gulch copper statistics. <br /> SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- <br /> IA 1B 2A 3B 4A 4B 6B 7B <br /> Geomean 0.008 0.007 0.007 0.006 N.D. N.D. 0.057 0.008 <br /> S.D. 0.000 0.003 0.000 0.001 0.000 0.001 <br /> Max 0.008 0.012 0.007 0.007 0.057 0.009 <br /> Min 0.008 0.005 0.007 0.005 1 0.057 0.007 <br /> n 1 6 1 5 1 2 <br /> Reg 41 TVS 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 <br /> None of the data recorded for monitoring wells in Squaw Gulch wells returned any results above the Reg <br /> 41 value. <br /> 5.1.5 WAD Cyanide <br /> Table 9 presents WAD cyanide summary statistics by well for the Squaw Gulch data. <br /> Table 9. Squaw Gulch WAD cyanide statistics. <br /> SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- SGMW- <br /> IA 1B 2A 3B 4A 4B 6B 7B <br /> Geoinean N.D. 0.006 N.D. N.D. N.D. N.D. N.D. N.D. <br /> S.D. 0 <br /> Max 0.006 <br /> Min 0.006 <br /> n 1 <br /> Reg 41 TVS* 0.2 0.2 0.2 0.2 0.2 0.2 1 0.2 1 0.2 <br /> *Reg 41 Table Standard Value I of 0.2 mg/L is for Free Cyanide <br /> All WAD cyanide data recorded within Squaw Gulch is significantly below the applicable standard of 0.2 <br /> mg/L. Only well SGMW-1B has recorded a data point above the reporting limit for this parameter within <br /> this drainage. This anomalous data point is suspect due to the lack of any other data which demonstrates <br /> a WAD cyanide concentration above the detection limit of 0.005 mg/L. It is also of note that elevated <br /> dissolved concentrations of sulfate can have an effect on WAD cyanide analysis and could cause false <br /> positive results. <br /> 14 <br />