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Show LITTLE COTTONWOOD CREEK 1987 thru 1996 Chemistry Data Summary ANALYTE No. of Samples Average No. of less thans Assigned less than value Average with less than values Minimum Maximum T. Sus. Solids mg/ 1 50 5.36 44 4 8.88 < 4 215 T. K. N. mg/ 1 32 0.13 8 0.1 0.16 < 1 0.84 Ammonia as N, mg/ 1 50 0.05 37 0.05 0.08 <. 05 1.201 D- Arsenic, ug/ 1 24 0.00 26 0.05 0.05 <. 05 <. 05 D- Barium, ug/ 1 21 53.05 0 53.05 24 85 D- Cadmium, ug/ 1 22 0.05 21 1 1.00 < 1 1 D- Calcium, ug/ 1 48 23.58 0 23.58 10 36 D- Chromium, ug/ 1 23 0.00 27 5 5.87 < 5 0 D- Copper, ug/ 1 23 1.87 21 12 12.83 < 12 26 D- Iron, ug/ 1 23 10.50 19 20 27.02 < 20 111 D- Lead, ug/ 1 23 0.13 22 3 3.00 < 3 3.1 D- Magnesium, mg/ 1 49 5.36 0 5.36 2.7 8.26 D- Manganese, ug/ 1 23 2.26 18 5 6.17 < 5 33.6 D- Potassium, mg/ 1 50 0.78 17 1 1.12 < 1 1.8 D- Selenium, ug/ 1 23 0.04 22 1 1.00 < 1 1 D- Silver, ug/ 1 22 0.00 22 2 2.00 < 2 < 2 D- Sodium, mg/ 1 50 13.20 0 13.20 3.4 27.7 D- Zinc, ug/ 1 26 50.92 0 50.92 0 90 Bicarbonate, mg/ 1 49 69.86 0 69.86 41 294 Carbon dioxide, mg/ 1 50 4.18 0 4.18 1 44 Carbonate, mg/ 1 50 0.00 0 0.00 0 0 Chloride, mg/ 1 49 22.49 0 22.49 3.5 62.8 Hydroxide, mg/ 1 50 0.00 0 0.00 0 0 Sulfate, mg/ 1 49 23.35 3 10 23.96 < 10 43.9 T. Phosphorus, mg/ 1 48 0.01 39 0.01 0.02 <. 01 0.191 T. Alkalinity/ CaC03, mg/ 1 50 57.38 0 57.38 33 241 T. Hardness/ CaC03, mg/ 1 50 81.29 0 81.29 36.5 119.4 Turbidity, NTU 50 1.19 0 1.19 0.03 27 Sp. Cond. umhos/ cm. 49 234.92 0 234.92 105 407 TDS ® 180C, mg/ l 50 131.40 0 131.40 60 216 N02+ N03 dis 48 0.21 0 0.21 0.11 0.636 D- Mercury, ug/ 1 24 0.00 24 0.2 0.20 < 2 0 C03 Solids 49 34.47 0 34.47 20 145 D- T. Phos., mg/ 1 48 0.01 34 4 2.84 <. 01 0.095 Temp, C 50 5.49 0 5.49 0.5 13.2 pH 50 8.07 0 8.07 7.3 9.2 |