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<br />TABLE: 8r <br />TWENTYMILE COAL COMPANY <br />PERIOD OF RECORD WATER QUALITY DATA <br />SITE: AVF15 (WELL AVMdS, FISH CREEK ALLUVIUM) DATUM= 6628.4 Well installed in June 2002 <br />CATEGORY PARAMETER ANALYSLS TYPE UNITS JUN ~ JUNE JUL AUG NOV FEB MAY <br />FIELD PARAMETERS _ <br />DATE _ 6/13/2002 ~ 6/18/2002 7/3/2002 8/12/2002 11/12/2002 2/6/2003 5/12/2003 <br /> WATER ELEVATION FT ABOVE MSL 6621.2 662 L3' 6621.5 6616.96 6621.18 6622.35 6623.62 <br /> WATER LEVEL _ FT 7.24 7.12 ~, 6.95 DRY 7.22 6.05 4.78 <br />PHYSICAL PROPERTIES TEMPERATURE F[ELD DEGREES C 11.7 11.8T 12.3 9.4+ 4.6 6.5 <br /> CONDUCTIVITY FIELD UMHOS/CM 700' 710' 722 520 590, 573 <br /> <br />- ~-- LAB UMHOS/CM 780 <br />_- <br />~ 370 620 <br /> <br />PH <br />FIELD <br />LAB * <br />PH <br />PH---- <br />8.13 -_ <br />- <br />8.15 <br />~7. 8 <br />- <br />--- 8.65 <br />8.441 <br />_ - 8.32 <br />8.36 <br />7.74 <br />-- <br /> SOLIDS TOTAL-DISS MG/L 5301 300 380 <br />CATIONS CALCIUM DISSOLVED MG/L 100 <br />} 43 58 <br /> <br />MAGNESIUM -~ <br />DISSOLVED ~ <br />MG/L _ ___._- <br />24~ <br />28~ <br />38 <br /> <br />_ _ _ -- -- SODIUM DISSOLVED MG/L SI _37 ~ 43 '' <br />ANIONS O <br />TE O3 94 00 3 <br /> CARBON <br />ATE <br />_ ___ <br />SULFATE AS C03 <br />~~~ <br />NOT APPLICABLE I MG/L/L - <br />MG/L ~ ; _ _ _ _ _ <br />t_ - <br />130, _ _ < <br />~ ._ _ _ <br />75 <br />PRIMARY CADMIUM DISSOLVED 1 UG/L <S <5 <5 <br /> LEAD DISSOLVED UG/L <SY <60 <50 <br /> MERCURY <br />SELENIUM DISSOLVED <br />DISSOLVED UG/L <br />UG/L <0.2 ~~ <br /><2i <0.2 <br /><2 <0.2 <br /><2 <br />SECONDARY IRON DISSOLVED UG/L <10' <5 <5 <br /> <br />_ <br />TRACE METALS MANGANESE <br /> <br />MOLYBDENUM DISSOLVED UG/L <br />-~__ -___ <br />DISSOLVED UG/L <br />___rt 8601 <br />-__ a_- __ <br /><50~ 37 <br /> <br />t <SO , 130 <br /> <br /><50 <br />__ <br />NUTRIENTS NITROGEN AMMIA-FREE IMG/L <br />NITRATE MG/L 0.421 <br />0.0~ _ <O.OSj <br />0.03 0.06 <br />` <0.02 <br /> NITRITE MG/L _ 0.04, <0.02 <br />I <0.02 <br /> <br />N03+N02 _--~ <br />.-__ _ +- _ <br />< <br />- - <br />PHOSPHATE <br />__- ___ - MG/L_ <br />ORTHO-DISS - _ -_ _0 Il - _- _ <0.OI 0.02 _- <br />EXCEL: I:\Envimnmental\DMG\PR6\Water Data\New Alluvial Well Data <br />