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Lower Dry Fork Surface Water duality and Field Parameters ,/ 1I u 1r, u i• Monitorin Location L. D Fork Flume Baseline 2001 Water Year Descri lion Units Minimum Maximum Mean 4/262001 6/24/2001 9/29/2001 Field Parameters Flow cfs Electrical Condudivl umhos/cm 1210 130 ~ 150 H SU 8.5 6.2 9.1 Tem erature oC 15 15.6 13S Comment O.G: <0.01 O.G.-0.90 O.G: 1.28 Laborato Parameters ACZ Name of Certified Lab L32666-08 Lab Reference # 6x24/'2001 Sam le Date 627-7109 Lab Test Date R.H. Sam led B Alkalini Total CaC03 m Aluminum, dissolved m Anions me I Arsenic, dissolved m Arsenic, total m Bicarbonate m 118 324 220 Boron, dissolved m Cadmium, dissolved m Calcium, dissolved m 87.9 87.9 87.9 Carbonate m Cation -Anion Balance m Cations me Chlodde m 8.4 4.2 Conductivi umhos/cm 207 1920 755 169 Co er, dissolved m Hardness m 125 726 360 H roxide m Iron, dissolved m 0.178 0.049 0.07 Iron, total m 0.02 84 5.fi 1.19 Lead, dissolved m Ma neSium, tliaSOlvetl m 9.8 a9 29 Man anese, dissolved m I 0.008 0.013 0.011 Man anese, total m I 46.4 f.4 Mercu ,total m Mol bdenum, dissolved m Nitrate as N , dissolved m Nitrate/Nitrite as N m 0.1 0.3 0.2 Nitrite as N dissolved m H SU 6.9 9.00 8.2 7.9 Phos hate m I Phos horns Ortho ,dissolved m I 0.763 0.048 Potassium, dissolved m Selenium, total m Sodium Absor lion Ratio SAR talc. 0.71 1.48 1.11 Sotlium, dissolved m /t 69 69 69 Sulfate m 35 613 249 TDS Ralio talc. TDS Calc. . m TDS TSS Zinc, dissoivetl m m m 158 1.2 1388 1098 581 144 110 32 ACZ Labs, Steamboat S rin s, Colorado ' Standard is for reference u ses onl NA • not a liceble NM -not measured NR -not re orted West Elk Mine C-6 2001 Annual Hydrology Report HydroGeo, lne.