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<br />TABLE: 15 <br />COLORADO YAMPA COAL COMPANY: MINE 1, 2 AND ECKMAN PARK MINE <br />1999 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE:26SP2 <br /> <br />DATUM = 7013.76 <br />CATEGORY PARAMETER ANALYSIS TYPE UNITS OCT NOV DEC JAN FEB MAR APR MAY JUN I J <br />U <br />L AUG SEP <br />FIELD MEASURES DATE 11/6/96 I 3/18/99 5/11/99 _ <br />_ <br />_ <br />__ 8/19/99 <br /> <br />WATER ELEVATION <br />FT <br />6967.87 <br />I <br />6967.63 <br />6970.37 ____ <br />6968.24 <br /> WATER LEVEL FT __ 45.89 46.13 __ 43.39 45.52 <br />PHYSICAL PROPERTIES TEMPERATURE FIELD DEGREES C 11.6 10.6 11.3 __ 13.3; <br /> CONDUCTIVITY ;FIELD <br />SLAB <br />_ <br />PH 'FIELD <br />_ LAr B UMHOSlCM <br />UMHOS/CM <br />_ <br />PH <br />PH <br /> <br /> <br />I 3340 <br />I <br /> <br />fi.95 _ <br /> <br />__- __ <br /> <br /> <br />_ 2570 <br /> <br /> <br />681 <br /> <br /> <br /> <br />_ 2700 <br />2910 <br /> <br />6.71 <br />6.7 1, <br />~ <br /> <br /> <br />____ 3730 <br />3680 ___ <br /> <br />6.76 <br />6.6 <br /> ALKALINITY TOTAL MG/L _ <br />__ 721 <br />0 <br />__ 721 <br /> HARDNESS AS CAC03 MG/L ___ _ 2450 2380 <br /> SOLIDS TOTAL-DISS MG/L 3310 ~ 3710 <br />CATIONS CALCIUM DISSOLVED MG/L 483 ; 453 <br /> MAGNESIUM DISSOLVED MG/L _ 302 y <br />j <br />303 <br /> SODIUM <br />__ DISSOLVED <br />__. MG/L ~ 10.9 37 <br /> <br />SAR <br />N_OT APPLICABLE <br />UNDEFINED __ <br />I <br />0.36 _ <br />}T- _ <br />0.33 <br />ANIONS BICARBONATE AS HC03 MG/L ; ___ I ___ 880 879 _ <br /> CARBONATE AS C03 MG/L ~ < 2 1 < 21 <br /> HYDROXIDE AS OH MG/L _ <2 <2i <br /> SULFATE NOT APPLICABLE MG/L __ 1830 <br />- 2060 <br />PRIMARY CADMIUM DISSOLVED UG/L __ _ <.5 ~ <.5 <br /> LEAD DISSOLVED UG/L ; < q0 t- _ <br />< 80 <br /> MERCURY _ DISSOLVED UG/L c 2 , <,2 <br /> SELENIUM DISSOLVED UG/L ! <1 _ __<i. <br /> <br />SECONDARY <br />IRON _ _ <br />DISSOLVED <br />UG1L <br />) ___ <br />i ___ <br />280 <br />_ <br />80 <br /> MANGANESE DISSOLVED UG/L I _ 2160 _ 1900 <br />TRACE METALS MOLYBDENUM DISSOLVED G/L <br />U ! I < 10 < 20 <br />NUTRIENTS NITROGEN ;AMMIUM-TOTAL _ <br />MG/L __ <br />I ~ _ __ <br /><.p1 ___ <br />T - < 01 <br /> IAMMIA-FREE <br />.N TI ROTE MG/L <br />MG/L <br />I _ I <.05 <br />0.06 _ <br />_ <.O5 <br /><.02 _ <br /> NITRITE MG/L <,01 c.011 <br />- ~ <br />PHOSPHATE N03+N02 <br />ORTHO-DISS MG/L <br />MG/L <br />I _ 0.06 <br />0.013 _ <br />_ _ <.02 <br /><,005~ <br />L~EN\p1MRONMENi~E W 1R\\999\LYLC\TnBlES\99 Wella.tla <br />ll'09 PM - MSNO ,/ <br />