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<br />TABLE: 80 <br />TWENTYMILE COAL COMPANY <br />PERIOD OF RECORD WATER QUALITY DATA <br />SITE: AVFl3 (WELL AVM-13, FISH CREEK ALLUVIUM) <br />DATUM = 6685.68 Well installed in August 2001 <br />CATEGORY T PARAMETER ANALYSIS TYPE UNITS ~ AUG T AUG SEP OCT MAR MAY <br />~ AUG <br />~ NOV FEB APR <br />(FIELD PARAMETERS DATE 8/23/2001 8/27/2001 9/26/2001 r 0/16/2 3/5 <br />5/2002 /2002 11/!1/2002 2/5/20034/15/2003 <br /> WATER ELEVATION <br /> <br />WATERLEVEL --- <br /> <br />---~----- - FT ABOVE MSL ~ 6678.35 <br />-= - <br />FT--_-- ~ 7.35 6678.31 <br /> <br />-- 7.39 6678.32 <br /> <br />7.38 6670.92 <br /> <br />7.4 6681.2 6679.07 <br /> <br />4.48 6.61 6678.32 6679.09 <br /> <br />7.361 6.59 6680.321 6682.2' <br /> <br />6.36r ~ - 3.48 <br />PHYSICAL PROPERTIES TEMPERATURE FIELD DEGREES C I 13.6 14' 12.9 8.6 2.8 8.1 13.4 7.2 5.1 ~ 8 <br /> CONDUCTIVITY FIELD UMHOS/CM 1123 11501 1111 IlIO 1100 1340 1150 1070 1050, 795 <br /> <br /> <br />--- _-- - LAB UMHOS/CM 1145 950 1300' 860 <br />__ <br />_ IIOOi <br /> PH FIELD PH --- 733 7.28 <br />L 7.38 7.41 7.67 7.65 <br />~ 7.7 7.36 <br />~ 7.4~ 7.81 <br /> ' ~ <br />~ <br /> - LAB PH 7.36 <br />I __-_ - _ 7.36 <br />~ 722 <br />7.36 7.33 <br />~ <br /> _ <br />SOLIDS TOTAL-DISS ___ <br />MG/L ~ 830 _ <br />670 I _- <br />} 830' 820 730 <br />~ <br />CATIONS CALCIUM DISSOLVED MG/L <br />L 113 100 I 2401 100 56 <br />, <br /> MAGNESIUM DISSOLVED _ <br />_ <br />MG2 ~ 50.2 13 ~ 63~ 52 r j <br /> <br />~~ SODIUM DISSOLVED MG/L '' 69.1 __ <br />_ <br />100' t 100 100 87 ~ <br />ANIONS -- O <br />TE O ~ ~-- r <br />~~ 410 <br />- ~ <br /> I <br />~O <br />A ~ O <br />~ . <br />- -- - - F _ <br />1 - <br />I 1 <br />~ <br /> SU <br />____ NOT <br />A <br />PPLICABLE MG/L <br />_ 230 t 290 330 330 <br />1 <br />~ <br />PRIMARY CADMIUM DISSOLVED _ _ <br />UG/L I <5 <2 <2 <2 _ <br />, <br />_ _ <br />_ <br /><2 <br /> LEAD DISSOLVED UG/L <50 <60 <SO L <60 <601 <br /> <br /> MERCURY DISSOLVED UG/L <0.2 <0.2 <0.2 <br />~ <0.2 <0.2 <br />r <br />_ __ SELENIUM ___ DISSOLVED UG/L __~-~ < <br />, <2 __ _ __ <2 <2 <2 <br />__ <br />__ <br />SECONDARY (IRON DISSOLVED UG/L ~ <br />20 < 10 ~ 11 1 14 - <br /><51 <br /> rMANGANESE - <br />DISSOLVED UGIL <br />I -- <br /><5 _ <br />~-- _-- - <br />1200 - 1500 -- 1900 1800 <br />TRACE METALS MOLYBDENUM DISSOLVED _ - <br />UG/L - ~ <60 <50~ <50 <60 - <br /><60 <br />NUTRIENTS 'NITROGEN AMMIA-FREE MG/L 0.22 O.II ~ 0.27 11- <br />' 0.13 0.12 <br />~ <br /> NITRATE MG/L } <0.02 0.04' 0.02 <br />~ <0.02 0.11 <br />I <br /> NITRITE MG/L ~ c0.02 <0.02 <br />~-_ <0.02 <0.02 <0.02. <br /> <br />--- N03+N02 MG2 <0.02 <br />~ 0.04 0.02 <0.02 O.li <br /> PHOSPHATE <br />-_ ORTHO-DISS <br />___-_.- MG/L <br />I I <0.01 <br />_ __ _____-- <br />____ <br />__ _- 0.02 <br />_ ___- _-. <0.01 <0.01 <0.01' <br />____~.___ J <br />EXCEL: I:\Envimnmental\DMG\PR6\Water Dara\New AlWviel Well Data <br />