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COLORADO LEGACY LAND <br /> TABLE 2B: SUMMARY OF GROUND WATER ANALYTICAL DATA <br /> Domestic Water Supply- Sample Location <br /> Parameter Units Drinking Water Standards MW-0 MW-00 MW-18 Raw Feed Sump Composite <br /> (CDPHE 2018) 10/16/2019 10/16/2019 10/23/2019 10/17/2019 10/17/2019 <br /> Physical Properties <br /> TDS- Total Dissolved Solids mg/L - _ 512 252 656 3,020 991 <br /> TSS-Total Suspended Solids mg/L - <5 <5 7.0 26.0 <5 <br /> Major Ions <br /> Alkalinity as CaCO3 mg/L - 167 127 187 687 271 <br /> Bicarbonate as CaCO3 mg/L - 167 127 187 687 271 <br /> Calcium- Dissolved mg/L - 91.7 47.1 95.7 316 155 <br /> Carbonate as CaCO3 mg/L - <2 <2 <2 <2 <2 <br /> Chloride mg/L 250 23.7 52.2 18.3 41.0 24.3 <br /> Fluoride mg/L 4.0 0.3 0.4 0.5 1.1 0.4 <br /> Hydroxide as CaCO3 mg/L - <2 <2 <2 <2 <2 <br /> Magnesium-Dissolved mg/L - 31.9 13.3 32.6 239 66.5 <br /> Potassium- Dissolved mg/L - 4.1 2.4 5.1 27.1 7.5 <br /> Sodium-Dissolved mg/L - 18.6 _ 17.4 63.3 _ 225 _ 48.0 <br /> Sulfate mg/L 250 188 23.4 260 1,440 459 <br /> Nutrients <br /> Cyanide-Weak Acid Dissociable mg/L 0.2 <0.003 <0.003 <0.003 <0.003 <0.003 <br /> Nitrate+Nitrite as N mg/L 10.0 1.4 0.08 <0.02 <0.02 1.45 <br /> Phosphate-Total mg/L - <0.03 <0.03 0.06 0.22 <0.03 <br /> Phosphorus-Total mg/L - <0.01 <0.01 0.02 0.07 <0.01 <br /> Metals-Dissolved <br /> Aluminum mg/L 5.0 <0.05 <0.05 <0.05 <0.1 <0.05 <br /> Antimony mg/L 0.006 <0.0004 <0.0004 <0.0004 <0.0008 0.0021 <br /> Arsenic mg/L 0.01 <0.0002 <0.0002 0.0018 0.0311 0.0005 <br /> Boron mg/L 0.75 0.05 0.04 0.10 0.34 0.10 <br /> Chromium mg/L 0.1 <0.01 <0.01 <0.01 <0.02 <0.01 <br /> Copper mg/L 1.0 <0.01 <0.01 <0.01 <0.02 <0.01 <br /> Iron mg/L 0.3 <0.03 <0.03 0.58 10.70 0.08 <br /> Lead mg/L 0.1 <0.0001 <0.0001 <0.0001 <0.0002 0.0001 <br /> Manganese mg/L 0.05 <0.01 <0.01 0.1 0.9 0.1 <br /> Mercury mg/L 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum mg/L 0.21 <0.02 <0.02 0.05 1.4 0.09 <br /> Silver mg/L 0.05 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Thallium mg/L 0.002 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Uranium mg/L 0.03 0.432 0.0026 0.475 14.3 2.45 <br /> Zinc mg/L 5.0 <0.01 I 0.01 <0.01 <0.02 0.02 <br /> Metals-Total <br /> Aluminum mg/L 5.0 <0.05 <0.05 1.16 <0.1 <0.05 <br /> Antimony mg/L 0.006 <0.0004 <0.0004 <0.0004 <0.0008 0.0025 <br /> Arsenic mg/L 0.01 <0.0002 <0.0002 0.0045 0.0344 0.002 <br /> Boron mg/L 0.75 0.03 0.02 0.13 0.32 0.09 <br /> Chromium mg/L 0.1 <0.01 <0.01 <0.01 <0.02 <0.01 <br /> Copper mg/L _ 1.0 <0.01 <0.01 <0.01 <0.02 <0.01 <br /> Iron mg/L 0.3 <0.03 <0.03 4.67 10.7 0.68 <br /> PAGE 8 OF 12 <br />