2007-11-23_HYDROLOGY - M1977300 (7)

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Cotter Schwartzwalder Mine Hydrology Study All Analytes-- Surface Water Analytical Results Whetstone Associates Parameter 5117199 6114/99 7/14199 9113199 9113199 9114199 12/21100 1129101 2/28101 3127/01 4118101 5129/01 pH (Std. Units) -_--_-- 7.3------- ------- 7.6D----- -------- 8 D - ------- --------------- ----------- - - - Conductivity,specific(uS/cm) 143 - - - - - - - ------- - - - - - - 177 D - - - - - - - - - - - 444 D ------ --------- - - --------------- - ----------------------- - ------- ------------------- - ---------- ------------ - - --------------- --- - ----------- Total dissolved solids (mg/L) 112 132 D 308 D Total suspended solids (mg/L) - - - - - - - - - 5 -B - - - -- -- - - - - <10-D - - - - - ---- - - - - - - <1013 ---------- ------ - ----------- - ---- Alkalinity, Dissolved (mg/L) 38-D 47-D 100 D Ailudinity,total(mg/L) 38 ------------ ---------------------------- -------------------------- Nitrate Nitrogen (mg/L) <0-. --------1 --U ----- ----------------- ------- 0-.8 --D ------- <0.5 D ------------------------------ --------------------------------- ------------------------------- ---------------- --------------- ---------------- Ammonia, total (mg/L) <113 <113 --------------- <1 D ----------------- ----- Calcium, total (mg/L) 14.2 ---------------- 17.3 ----------------- ----------------- 33.5 ------------------------------ --------------------------------- ---------------'--------------- ---------------- --------------- ---------------- Sodium, dissolved(mg/L) 8.9 10.7 ....... ................. .................... 32. Potassium,dissolved(mg(L) 1.2 --------------- <2 ---------------- -------------- --------------<2 ------ -------- ------------------------------- ------------------------------- ------------- -------------- ---------------- Sulfate (mg/L) 17 17D 99 D Chloride (mg/L) 9 --------------- 13 D ---------------- 16 D ---------------- ----------------------------- -------------------------- --- ----------------------------- ---------------- --------------- --------------- Aluminum, dissolved (mg/L) 0.2 Antimony, dissolved (mg/L) <0.006 <0.006 <0.006 Arsenic, dissolved (mg/L) <0.005 <0.005 - - - - <0.005 --- ----------- ----- Barium, dissolved (mg(L) <0.1 <0.1 <0. I BeryWum, dissolved (mg/L) - - - - <0.001 ------ ------ ----- <0.001 ----------- ----------------- <0.001 ------------------- ------ -------------------- ---------- ------------------------------ --- ----------- --------------- ---------------- Boron,total(mg/L) ----<0.05------ ----- -<-0.05 ------ ----------------- --------------------- 0.06------ ----------------- Cadmium, dissolved (mg/L) <0.001 Chromium, dissolved (mg(L) <0.005 Cyanide,total(mg(L) ---------------- ---------------- ----------------- -------------------------- <0-.Ol ---------------- ---------------------------- --------------- -------------- -------------- Copper, dissolved (mg(L) <0.005 <0.005 <0.005 Iron, dissolved (mg/L) 0.2 0.1 Lead, dissolved (mg/L) <0.005 <0.005 0.005 Magnesium, dissolved (mg/I,) 4--------- -------- ,.5 ------ -- ----------------- ---------------------- .4... - --- ----------- Manganese, dissolved (mg/L) <0.01 Molybdenum, dissolved (mg/L) 0.014 0.018 0.09 Nickel, dissolved (mg/L) <0.01 ---- - - - - - ------- <0.01 ---------------- ----------------- - - - - - - <0.01 ------------- ------ - -------------------- - --------- ------------------------------ ---------------- --------------- --------- ----- dissolved (mg/L) Selenium, m.01 ---------------- <0.01 ---------------- -------- <0.01 ------ ------------------ --------------------------------- ------------------------------- ---------------- --------------- ---------------- Silver, dissolved (mg/L) <0.01 Thallium, dissolved (mg/L) --- -x.001 ------ ----- ----- <0.001 ----------- - - -------------- <0.001 -- -- - ------------------------ ------------------------------- - ----------------------------- ---------------- -- ----------- --------------- Vanadium, dissolved (mg/L) <0.01 ---------------- -------------- --------------- Zinc, dissolved (mg/L) <0.01 <0 .01 <0. <0.01 - - - - - - - - <0.01 ------ ------------------' ------- - ----- ' ------ - ----- ----- --- ----- -- --- , dissolved (pCi/L) Uranium - ------ ----- - - - 0.0027D - - - ------ 0.0025 - - - - - D --- '--- 0-.0147 ------ D ----- ------------------------------ ------------ ------- 0------.0275 ------' ---- 0.0336 -------------- 0-.----0265 ------- .01 ------ 0- -------- ----- 0----.004 ------ ---- 0-----.0103 ....... Uranium, suspended (pCi/L) --- <0-.002-D -- ------- <0.002-D - <0-.002-D 0.002B 0.002 B 0.002 B 0.00213 0.0004 B 0.0007 B Thorium-228, dissolved (pCi/L) 0.1 D -------- ------ ----- --------- ----------------------------- -- ---------------------------- -------------------------------- --------------- Thorium-230, dissolved (pCi/L) OA D Thorium-232, dissolved (pCi/L) 0 D Radium-226, dissolved(PCi/L) 0.5 D 0.1-D ---- -------3.9D----- ------------------------------- ------------------------ -6------ -------'-6-------------1------- ------- 1.2------ ------- 0.6------ ------- 0.9------- Radium-226, suspended (PC?L) - ---- ------- 0.1-D ---- ------- ------ OD ---------------- ----- -------- ----------------------------- 0.1------ - --------0-------------- 0------ ------ 0.1------ -------0------ ----- 0.1 Gross Alpha Particles, dissolved(pCi/L) 3.1D ----- -------------- 30D ----------------- -------------------------'----- -------------------------------- ------------------------ - - - - - - - - - - - - - - - - Gross Beta Particles, dissolved (pCVL) <5-D 27D Printed 11/ 7 5:28:36 AM 4F 49 age 2 of 74