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Table C-7 <br /> Mayday Idaho Mine Complex Water Analysis Mine Adits <br /> GAL Reports 604-085, 610-103,701-057 <br /> Sample I.D. Sample Date PH TDS N032- 5042' Ca Mg Hardness" As Cd Cr Cu Fe Pb Mn Hg Ni Se Ag Zn <br /> (S.U.) (mg/L) /NO: (mg/L) (mg/L) (mg/L) (Calculated) OWL) OWL) (mg/0 ("WL) (ff9M (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) <br /> Idaho Mine 4/18/2006 -- - -- - 0.279 8.403 35 0.0015 <0.000 <0.000 0.0016 0.059 0.0026 0.020 <0.000 0.0007 <0.000 0.0001 0.020 <br /> Mine Water 9/30/2006 8.4 16S - - -- -- -- <0.10 <0.01 <0.01 -- -- <0.05 -- <0.0002 -- <0.20 <0.01 - <br /> Idaho Mine 1/10/2007 8.2 1692' 0.21 30 37.9 9.S 134 - -- - - <0.05 - - - 0.0012 -- - - <br /> Standards3' 65-9.0 - 10 -- -- 0.020 0.008' -- 0.0027' 1,000 0.0005"' 1.040"' -- 0.016" 0.0046 0.14S4' 0.1454' <br /> Notes <br /> 1. Hardness(Calculated)=(Dissolved Ca x 2.S)+(Dissolved Mg x 4.1) <br /> 2.TDS=Conductivity x O.S9(Hem,1.D.(1985)USGS Water-Supply Paper 2254) <br /> 3. Water Quality Standards,Mainstem of the La Plata River from the source to the Hay Gulch diversion south of Hesperus. <br /> 4.Table VI:Table Value Standards for Selected Hardnesses(Hardness=25 mg/L as CaCO3),SCCR 1002-31. <br />