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TABLE 29 TWENTYMILE COAL COMPANY PERIOD OF RECORD WATER QUALITY DATA SITE: AVF13 (WELL AVM-13, FISH CREEK ALLUVIUM) DATUM - ......... .................................. ................................... .................................... ATEGORY PARAMETER ............ 'ANALYSIS TYPE ............................... UNITS ;FIELD PARAMETERS ;:DATE WATER ELEVATION FT ABOVE MSL ,."WATER LEVEL :.......................................................... .. .. .. . ............... ............................. :PHYSICAL PRO :TEMPERAT. URE. PERTIES ........................ :FIELD :DEGREES C :CONDUCTIVITY ':FIELD :UMHOS/CM AB UMHOS/CM PH FIELD PH ..... LAB ............................. PH---............................ > ;SOLIDS TOTAL-DISS 'MG/L :CATIONS CALCIUM :DISSOLVED €MG/L MAGNESIUM ................................. ;DISSOLVED Mc ....... ;SODIUM .. .......... ................................... :DISSOLVED .. ........ ............................... :MG/L ANIONS :BICARBONATE :AS HC03 :MG/L 'CARBONATE AS C03 MG/L :SULFATE . :NOT APPLICABLE . :MG/L ....... .................................................... :PRIMARY 'CADMIUM .. ............................................. ;DISSOLVED ................... ..................... UG/L LEAD DISSOLVED UG/I MERCUR Y ::DISSOLVED ?UG/L ELENNM ................................................................>................... :DISSOLVED ; ......................... :UG/L ................................. :SECONDARY ?IRON . ............................. `DISSOLVED ........................................ :UG/L :'MANGANESE :DISSOLVED UG/L :TRACE METALS 'MOLYBDENUM DISSOLVED UG/L ;NUTRIENTS ::NITROGEN :AMMIA-FREE :MG/L ::. .................: ............................................... N03+NO2 . .................... .................... : MG/L ;PHOSPHATE :,. . ......,.............. ORTHO-DISS >MG/1. 0 6685.68 ............ ................. OV ....................... : . FEB € .......................:.. APR .......................:... MAY .....................:. AUG ........................ ` . OCT ....................... R 11/11/02 2/5/03 4/15/03 5/12/03 8/8/03 10/15/03 3/30/04 6679.09: 6680.32; 6682.2;: 6682.7 6681.38: 6679.08: 6682.1 59 ......................... ... 5.36 ...... ................ .. 3.48, . .................... 3.02. : 4.3.,, ........:.... , ..............6.6::: :...........:.3.52 7.2: 5.1 :.......::.:.. ... ... 8.0 ....:.::.,.... ...... .:; ... ..................: 6.5 .. 14.2: ............................ 12.3: ....................... 7.4 1070; : - 1050' .. : , 795 :::::..... .: ...,.: ,....,..........:,.. 896; ............. .......;... 1080:: .. ..... .............:.:..;:.. 991; ..,..................: 725 .. 860 :. 1100: ::::: > ... . ......-. : ........... .: .........::...: ...-.-.. -- 1200 ......-- ----... --- :...::........... - 7.36: ........... .................... 7.40: ....................... .. ........ 7.81: .................... 7.80; 7.41; 7.45 7.90 7.36 7.33 : :. .. ... .... .............. ............. ..... ...............::... 7.30; ............................ ..... 820 .. . 730' ..................... .: ..... :, 820. ..,................ 100 : ;:::: 100::: ::.:.::......._-...::.. ::.:..:..........:.. _ ......... -:..:...:......... -. ..:... 120 :.....-.:..... - - ... :.:....... 52 ......................... .... 56 .....................::.. ....._. : 65 100: 87, ;... .....•----............. ......................... ....................... 94€ .....................--- ... ................---... 480 420: 460- ..........:..,,. : <V 330??• - ............ ........ :.... --... ...:::330': : ......... ......... ... ................... . . . ... .............:..... . ......... . 270:: . ::::....:..:..,:..::. . . ........::::....:.. , <2 <2 . . ............... .... ............... ............. .................... .... < 2 ............. _ < 50' --- - - -- - < 2 ...................... < 2? ...................... - -- - ..... : < 2> 4 ......::........... 5 ;... ....... ----...... ...................... ; ... ...................... < 5; ......... ................. ..................... < 1900 1800, 2000; < 50' :......:...:.. ::... < 50 .......::: :. . < 50%, 0.13 ...... . 0.12 ...................:;... .................. .. .....................;... ..............:... .: .. ....:.. .. 0.15; ..:..........:....:: . .................-- € < 0.02 :... 0.1 ........................ = ................. ..... 0.06 . .................. ..... .... .............. < 0.01 < 0.01 : :...... :0.01: EXCEL: G:\Envirojuuental\CDMG - CDRMS\AHR\2008\Tables\New Alluvial Well 2009.xls