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TWENTYMILE COALCOMPANY <br />PERIOD OF RECORD WATER QUALITY DATA <br />SITE: AVFi4 (WELL AVF•14, FISH CREEK ALLUVIUM) DATUM = 6650.39 Well installed in August 2001 <br />CATEGORY PARAMETER ANALYSTS TYPE UNITS T -AUG T AUG SEP <br />~OCT TMAR MAY AUG r NOV FEB MAY <br />~ <br />iFIELD PARAMETERS DATE _ __ _ _ 8/23/2007/2001 _ <br />9/26/2001 10/16/2001 3/5/2002 <br />1 5/15/2002 8/12/2002 i Il/I 112002 <br />~ 2/SR003~5/IZ/2003 <br /> <br />WATER ELEVATION <br />FT ABOVE MSL <br />6641.87, 6641.91 ~.__ __ <br />_ _ <br />6641.88 664L84' 6644.2 __ <br />6642.55 6640.341 6642.27 _~ _ _ <br />6645.08 6645.59 <br /> <br />WATERLEVEL <br />FT <br />8. 3- 8.49 -+-- <br />8.52 8.55! 6,19 ~- <br />- 7.84 DRY 8.12 <br />31 - 4 <br />5 <br />8 <br />Y_--____ .. <br />PHYSICAL PROPERTIES - <br />TEMPERATURE - -_- <br />FIELD - <br />DEGREES C __-r-.~_ <br />13.5 13.9 -.. ~_-__- <br />13', 8 2.7 -__ _ <br />7.41 ~- 6.8 . <br />. <br />__ <br />- 6.~ 7 <br /> CONDUCTIVITY FIELD <br />-_-- --- <br />I UMHOS/CM 955 970 965 988 1020 980( -+ 1140 <br />I 960 861 <br /> <br />LAB <br />UMHOS/CM <br />- _+--927 <br />~ -~--~ ~-- { ~ - 990 _ <br />- <br />I --- ~~-~- 730 <br />-- <br />980 ~ --- <br /> PH FIELD PH <br />-__ 7_34 <br />7.28 7.38 <br />7.45 8.24 { <br />8.011- - - 7.57 7.51 ' - 7.53 <br /> <br />LAB <br />PH _ <br />~ - 7.57 + _ _ <br />7.4] _ <br />- --- 7.68 <br />7.34 --- <br />. _ __.___.. _. SOLIDS <br />___--__ __ TOTAL-DISS <br />___ ._ MG/L <br />-____ i 650 <br />-____. __ ~ <br />~ <br />710 <br />- -~- 680 670 <br /> <br /> <br />CATIONS <br /> <br />CALCIUM <br /> <br />DISSOLVED <br /> <br />MG/L <br /> <br />93.5 _ <br />_ _ _ <br />~ 130 <br />__ <br />__ __ <br />~ 110 - <br />____ _ <br />100 <br /> <br /> <br />' <br />MAGNESIUM <br />~_- ___ <br />DISSOLVED <br />_ _ <br />MG/L <br />_- <br />35.4 <br />____~___ __ <br />~ 14 <br />__... _ __1__-__ <br />~ <br />__ <br />46 <br />_. _ <br />+ _t._ __._ <br />52, <br />__ _ _ <br />t <br /> SODIUM DISSOLVED MG/L 54.2 i 94 64 61 <br />ANIONS (BICARBONATE <br />CARBONATE - ~ AS HC03 <br />AS C03 MGIL <br />MG/L ______ -~ 350 <br />_.__t___ <1 ~, 350 <br />_ _-+_ _..r __<I <br />____ 350 <br />___._ _. <1 350, <br />-__<I ______ <br /> <br />-- SULFATE NOT APPLICABLE MGIL -~ 220 330 -r 300 260~- <br />PRIMARY- <br />i CADMIUM <br />~- DISSOLVED UG/L -- --1~ -- <$ _ ~--- --~ - ~y ---- - - _--<2 <br />~ <2~----_- <br /> <br />P <br />LEAD <br />DISSOLVED <br />UO/L <br /><50 _ <br />~ ~ <60 _ _ <br />_ <br /><50 _ <br /><50' <br /> <br />--_- <br /> <br />MERCURY <br />__- <br /> <br />DISSOLVED <br />~_-__- <br /> <br />UG/L <br />_ __. + <br /> <br /><0.2 <br />-_ _t- <br /> <br />< 2 <br />0. <br />~ <br /> <br />____ <br /> <br />-____ - <br /><0.2 __ <br /> <br />~-.__• <br />_ SELENIUM <br />_ -~ <br />--- DISSOLVED <br />~ UG/L 13 <br />_~__- --_- <br /><2 - <br />I <y <y <br />(IRON <br />SECONDARY DISSOLVE _ <br />G/L_ __ __ <br /><10 -.___ <br />0 <br />~ _<S <br />- ~ <br />- _ _ <br />MANGANESE <br />_ - _ DISSOLVED <br />_ UG/L <br />_ -_ c5 <br />_ 92 <br />, <br />__ _ _ _ <br />__-_ 110 <br />_ _ <br />__ <br />~ <br />~ _310 <br />_ <br />TRACE METALS MOLYBDENUM _ <br />- <br />DISSOLVED UG/L _ <br /><60 <50 < <60 <br />__ <br />_ '-_ .._ __- _ _ __ -__ <br />~ _-_ <br />_ _ <br />-;-_-_ <br />~ f . <br /> <br />NITROGEN <br />NUTRIENTS <br />AMMIA-FREE - <br />MG/L -' <br /><0.65 <br /><0.05 _. -_- <br /><O.OSI . _. <br />0.06 <br />( NITRATE MG/L - <br /><0.02 J 0,02 _ __~ _ <br /><0.02 <0.02~ <br /> NITRITE MG/L '- _ <0.02 __ <br />~ <br />~ -! ~ <0.02 ~- 0.02 <002~~ <br /> N03+N02 MG/L ~ <0.02 _ <br />_ <br />~ <br />1 0.02 002 <br />~ <002' <br />______ -_ _ PHOSPHATE '~ ORTHO-DISS_ MG/L__ _ _ _ __ L <0.01 _ <br />__ __ _l_ <0,01 __ <br />~ __ _ _ <br />_<O.OI I <0.01 _ <br />EXCEL: 19EnvironmenUllDNGlpR6lW'aler DaraWew Alluvial Well Da[a <br />