2007-11-23_HYDROLOGY - M1977300 (7)

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Cotter Schwartzwalder Mine Hydrology Study All Analytes-- Surface Water Analytical Results Whetstone Associates Parameter 8130106 10/26106 11130106 12127/06 1131107 3129107 6127/07 915107 pH (Std. Units) Conductivity, specific (uS/cm) Total dissolved solids (mg(L) Bicarbonate (mg/L) Alkalinity, total (mg/L) Calcium, dissolved (mg/L) Sodium, dissolved (mg/L) Potassium, dissolved (mg/L) Sulfate (mg/L) Chloride (mg/L) Aluminum, dissolved (mg/L) Aluminum, total (mg/L) Antimony, dissolved (mg/L) Antimony, total (mg/L) Arsenic, total (mg/L) Copper, dissolved (mg/L) Copper, total (mg/L) Iron, dissolved (mg/L) Iron, total (mg/L) Iron, Ferrous (Fe2+) (mg/L) Lead, total (mg/L) Magnesium, dissolved (mg/L) Manganese, dissolved (mg/L) Manganese, total (mg/L) Mercury, total (mg/L) Molybdenum, dissolved (mg/L) Silver, total (mg/L) Thallium, dissolved (mg/L) Thallium, total (mg/L) Zinc, total (mg/L) Uranium, dissolved (pCi/L) Uranium, suspended (pCi/L) Uranium, total (pCi/L) Radium-226, dissolved (pCi/L) Radium-226, suspended (pCVL) Radium-226, total (pCVL) 7.94 266 176 ------------------------------------------------------------ ------- --------------- ---------------- ----------------- --------------- ----------------- --------------- - 85 70 ------ --------------------------------------------------- 28.9 - - -- '- ' - ------------ 10.7 ----------------------------------------------------------- ------- --------------- ---------------- ----------------- -------- -- -- ---- -- - - -- 1.8 - - - - - - - ---- ----- ---------23 --------------------------------------------------------------- ----------'----- - ------- -------------- ---------------- ----------------- --------------- ----------------- ------- 23 ------------------------------ ------------------- - ------------ <0.2 --------------- <0.2 --------- <0.2 <0.2 ------- <0.2 --------------- ------------------- - <0.2 --------------- ---------------- ----------------- --------------- ---------------- ---------------- <0.2 -'--"------------------------------------------'----' <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 ------------------------------------------------------------------------------------------ ------------- -------------- ----------------- - --------------- - -- -- ---------------- - - - - - ---------------- - ------- -- - ------ <0.1 -- -- -- -- --------- ------------------------------------------------------------------------- ------------- <0.001 -------------- 0.001 -- --- --- -- ---- <0.001 - - ---- - <0.001 --- - - - <0.001 <0.005 ---------- <0.005 ------------------------------------ - --- - - ------ ------------------------------------------------------------------------------------- --------------- ---------------- - - ----------------- - --------- - --------------- --------------- -------- ---------------- - -- - ---------------- 0.08 -------------- --- ---- ----------------------------------------------------------------------- --------------- <0.03 --------------- ----------- - 0.04 ---------------- - -- <0.03 ----------------- <0.03 --------------- <0.03 ----- ---------- ------------ - <0.03 -- - -' ---- - -------------- ---------------- <0.005 ----- ------------------------------ --------------- ---- ---------- ------ -- - 8.1 ---------- -------------------- --------------------------------------------- _.'--- ------- ' -- <0.01 --------------- 0.02 ----- - -- --- --- <0.01 -- ---- -------- <0.01 - --------------- <0.01 -- -- ---- ---- - - <0.01 - - --- - - --- ----- ---- -- - -- ----- ---- -------- -- -- ------- --- -- -- ----- - -- ---- - ---- --- -- <0.0001 - -- - ---- --- --------------------------------------------------------------------------- - ---- ----- 0.018 -- - 0.012 0.015 0.018 0.014 <0.005 <0.001 - ------- --------' ----- --- ---------------------------- --------------- <0.001 ------ ------ <0.001 <0.001 ---------------- <0.001 ---------------- <0.001 ---------------- ----- - - <0.001 <0.001 - - - -- -' - --------------- ------ ---- - -- - ------- ----- - -- <0.005 0.138 0.0995 0.15 0.17 0.117 0.0074 0.031 0.215 --- --------- <0.0003 ---------------- ---------------- --------- ------- 0.0024 ---------------- 0.0007 ------ --------------- -- - - - - - - ---- -- 0.0098 -- --- ----- -- - - ----- ---- --- ----------------- ------------------------- ------------------------------------- --------------- ---------------- --------- ' --- --- -- -- -- ------- ---- ---- - ---- - --------------- - - - <0.2 <0.2 0.6 -------------- -- - <0.2 0.6 <0.2 --------------- ---------------- ---------------- ---------------- ---------------- 0.6 ---------------- ------------------------------------------------------------------------------------------------ Printed 11/15/2007 5:28:38 AM Page 21 of 74