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Idaho Mine,Mayday CO Water <br /> Analysis Samples Collected <br /> January 30,2007 <br /> pH TDS As Ba Cd Cr Pb Hg Se Ag <br /> (S.U.) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) <br /> Mine Water 8.4 165 <0.10 0.08 <0.01 <0.01 <0.05 <0.0002 <0.20 <0.01 <br /> standards2. 6.5-9.0 0.150 0.0083' 0.00053. 0.0046 0.1453. <br /> Notes <br /> 1. Hardness(Calculated)_(Dissolved Ca x 2.5)+(Dissolved Mg x 4.1) <br /> 2. CDPHE/CWQCC Regulation No.31:The Basic Standards and Methodologies for Surface Water(5 CCR 1022-31) <br /> 3, Table VI:Table Value Standards for Selected Hardnesses(Hardness=25 mg/L as CaCO3) <br />