2007-11-23_HYDROLOGY - M1977300 (7)

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• 0 0 Cotter Schwartzwalder Mine Hydrology Study All Analytes-- Surface Water Analytical Results Whetstone Associates 46 Parameter 10120/98 10120198 11119198 11119198 12117198 12117198 1119199 1119199 2115199 2115199 3115199 4/19199 pH (Std. Units) 8 8.7 7.6 7.6 8.4 7.8 7.7 Conductivity, specific (uS/cm) 479 478 453 406 ------------ ------599----- ---------------- ------412------ -----196 ------ Total dissolved solids (mg/L) ---------------- 310 ---- ------------ ------- ------ 322 ------------'- ----. ----- 324 --------------- - ------ ------ 242 - -- ------ - ---------------- 385 -------------- -------------'--- 299 --------- ---- 126 -------------- Total suspended solids (mg/L) ---------------- 6-B ---------------- ---- -------- 3 B ---------------- ---------------- <1 U -------------- -- --- 3 B <1 U 1 B 4 B Hardness, total (mg/L) 150 150 120 120 Alkalinity, Dissolved (mg/L) 85D Afimlinity,total (mg/L) 120 100 110 98 - 110------ ---------------- -------85------ -------85- Nitrate Nitrogen (mg/L) ----- ------ 0.4 B -------------- ------- ------ 1.8 ---------------- ------- ------ 1.3 ------------ - - ------- ------ 0.8 ---------------- --- 1.7 0.8 <0.1 U Ammonia, total (mg/L) OU OB o u o u - - - - - - - - - - - - - - - - - - -- o u - O U 0 U Calcium, dissolved (mg2) --------35------ --------------- ---' 35 32 28 41 Sodium, dissolved (mg/L) 44 38 - ------ --------------- 38 ---------------- ----------------- 34 -------------- ---------------- 40 -------------- ----------------- ------ ----- ------- ------ Potassium, dissolved (mg/L) ---------------- 2.8 ---------------- ---- --- 2.5 2.3 2.1 - - ----- ---------------- 3------ --------- ----------------- --------------- ------------- Solfate(mg/L) ---------------- 120 ---------------- ----- -------- 120 --------------- ---- ----------- Ito ----------------- -- ----- - 91 --------------- ------- ------ 160 ------------- -------- ----- 91 ------ 27 Fluoride, total(mg/L) ---------'---- ---------------- ----- --- -------- 0--.6 ------ - ---------------- -------- 0'-.5 ------ ---------------- -------- 0--.5 ------ ---------------- 0.5 -------- .5------ --------------- 0.7 --------- ------ --------------- ---------------- Chloride (mg/L) 19 15 14 13 15 14 12 Aluminum, dissolved (mg/L) U <0.5 U -- ----- <0.5 U -- - -- - ----- -- ------------- <0.5 U ---------------- ---- --------- --------------- ---------------- --------------- ---------------- Antimony, dissolved (mg/L) ----- - - ---- - ---------------- <0.03 U ---------------- ------------- ---- - - <0-.008-U ---------------- - ---------------- 0.003 ---------------- ---------------- <0.003 U ---------------- --------------- 0.009 ----------------- --------------- --- Arsenic, dissolved (mg/L) ---------------- --- <0.05 U ------------- --- - --- -- - --- <0.003 U ---------------- ---------------- ------------ ----------- --------------- ---------------- Arsenic,total(mg/L) -------------- ---------------- ---------------- ---------------- ---------------- <0.003-U -------------- ---------------- <0.003 U ---------------- ----- - - - - - - - - - - <0.003 U .... - - - - - ............... ................ Barium, dissolved (mg/L) 0.04------ -------------- ------ 0.03 Barium, total (mg1L) 0.03 0.02 0.04 Beryllium, dissolved (mg/L) ---------------- <0.001 U ---------------- -------------- <0.002 U -------- ----- --------- - ----- <0.002 U ---------------- ---------- - -- <0.002 U ---------------- --------------- <0.002 U ----------------- ----------- - --------------- Cadmium, dissolved (mg/1L) <0.002 U <0.0002U <0.0002U <0.001 U <0.0002 U Chromium, dissolved (mg/L) <0.005 U <0.005 U <0.005 U ---- --------------- ---------------- Copper, dissolved (mg/L) <0.02 U ---------------- ---------------- <0.02 U -- <0.02 U <0.02 U Iron, dissolved (mg/L) <0.03 U ---------------- ---------------- <0.03 U ---------------- ---------------- <0.03 U ---------------- ---------------- <0.03 U ---------------- ---------------- --------------- ----------------- --------------- ---------------- Lead, dissolved (mg/L) <0.05 U <0-.002-U Lead,total(mg/L) ----- ---------------- ------- <0.002U ---- ------ -------------- ---- <0.002U ---- --------------- ----- <0.002 U---- -------------- Magnesium,dissolved (mg/L) 15 ---------------- ---------------- 16 ---------------- ---------------- 10 ---------------- ---------------- 13 ---------------- ---------------- 140 --------'------ ----------------- --------------- ---------------- Manganese, dissolved (mg/L) -----<0.01 U ---- --------------- ------ 0.01 <0.01 U <0.01 U ---- ---------------- --------------- ----------------- --------------- --------- ----- Mercury, dissolved (mg/L) ---------------- --- -<-0.0002U ----- ---------------- ---- <-0-.0-002 U ----- -------- <0.0002U <0.0002 U <0.0002 U Molybdenum, dissolved (mg/L) 0.204 0.22 0.17 0.13 0.33 Nickel, dissolved (mg/L) <0.02 U <0.04 U <0.04 U <0.04 U <0.04 U Selenium, dissolved (mg/L) <0.05 U <0.005 U <0.005 U <0.005 U <0.005 U Silver, dissolved (mg/L) <0.005 U <0.001 U <0.0002U <0.0002 U <0.0002 U Thallium, dissolved (mg/L) <0.05 U <0.001 U <0.001 U <0.001-U <0.001 U Vanadium, dissolved (mg(L) ------------'--- <0.005 U '-------"----' --- <0.01 U ---------------- ---------------- <0.01 U -------------- <0.01 U - <0.01 U ------------- ------------ Zinc, dissolved (mg/L) <0.005 U <0-.005-U <0-.005-U <0.005 U Uranium, dissolved(pCi/L) ---- 0.0142 -- ---- 0.0062------ ---------------- ----- 0.0042 ...... ................ .... 0.0047------ ---------------- ---- 0.0048 ...... ................. ... 0.0037------ ---- 0.0034 Uranium, suspended (pCi/L) ---------------- ------------ --- 0.0003 B ---- ---------------- ---------------- --------------- ---- 0.0001 B---- ---------------- --- 0.0001 B ---- --------------- --- 0.0001 B ---- --- 0.0003 B Thorium-228, dissolved (pCi/L) 0 Thorium-230, dissolved (pCi/L) 0 Thorium-232, dissolved (pCi/L) 0 Radium-226, dissolved(pCi/L) 0.3 ---------------- ---------------- ----- 0.6------ -- ---------------- -------- 0.5------ ---------------- ------- ----- --------------- ----------------- --------------- ------- 0.2D..... Radium-226, suspended (pCi/L) 0 0 - O -D Gross Alpha Particles, dissolved(pCi/L) ------- 9.4------ ---------------- -------- 7.1...... ................ ....... 5.1----- --------------- '-'--'----- ------------ --- --------------- --'- Beta Particles, dissolved (pCi/L) Gross 9 3.6 B 0.2B Printed 11/15/2007 5:28:38 AM Page 23 of 74