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<br /> 20:';1
<br />Tabla 1, Statistical summaI)' of water-quality data for station 07097000. Arl<ansas River at Portland, 1986 through 1989
<br />(ft3/S. cubic feet per second: oC. degrees Celsius; J.1SIcm. microsiemens per centimeter at 2S degrees Celsius; mgIL. miUigrarns per liler; N11J, nephelometric
<br />twbidity units; IlgIL. micrograms per liter; <, less than; NA. statistic not applicable)
<br /> Number
<br /> Number of
<br /> 01 mealure- SlBndlnl Twenty- Seventy_
<br /> Constituent meelUl'&- ment8 Meen devlallon IIl1h Median IIl1h
<br /> menta or I... than percentile percentile
<br /> InllYM8 detection
<br /> level1
<br /> Streamflow, instantaneous (ft'Is) 130 0 1,228 874 608 1.120 1.525
<br /> Temperature (OC) 135 0 16,1 5,6 13.9 17,0 21.0
<br /> Specific conductance (liSlcm) 89 0 363 133 230 369 493
<br /> Oxygen, dissolved (mgIL) 122 0 9.4 2,1 7.9 8,6 11.0
<br /> pH (standard unilS) 129 0 NA NA 8,1 8.4 8,8
<br /> Thrbidity (NTIJ) 80 0 42 126 4,2 7,1 27
<br /> Nitrogen, IOtaI (mgIL) 19 0 .97 2.4 .23 .37 ,62
<br /> Nitrite plus nitrate as nitrogen, 35 7 .22 .19 ,10 .16 .33
<br /> dissolved (mgIL)
<br /> Nitrite plus nitrate as nitrogen, 19 0 .22 ,14 ,II ,18 .30
<br /> IOtaI (mgIL)
<br /> Ammonia as nitrogen, dissolved 35 10 ,03 .03 .01 .03 ,04
<br /> (mgIL)
<br /> Anunonia as nitrogen, total (mgIL) 44 9 .04 .04 .02 .03 ,04
<br /> Ammonia plus organic nitrogen as 44 2 .61 1.5 .20 .30 50
<br /> nitrogen. dissolved (mgIL)
<br /> Phosphorus, orthophosphate, as 33 0.03 0.02 0.02 0.03 0,05
<br /> phosphorus, dissolved (mgIL)
<br /> Phosphorus, dissolved (mgIL) 34 0 .05 ,02 ,03 ,04 Jl6
<br /> Phosphorus, lotal (mgIL) 41 0 .14 .15 .06 .08 .14
<br /> Hardness (mgIL) 42 0 174 53 135 190 213
<br /> Calcium, dissolved (mgIL) 42 0 47 13 38 51 57
<br /> Magnesium, dissolved (mgIL) 42 0 13.7 5,1 9.7 15,5 18,0
<br /> Potassium, dissolved (mgIL) 42 0 2,3 ,69 1.8 2.5 2.7
<br /> Sodium, dissolved (mgIL) 42 0 19.7 8.1 14.8 22,7 26,0
<br /> Chloride, dissolved (mgIL) 41 0 7.6 3.0 5.0 8.3 10,0
<br /> Fluoride, dissolved (mgIL) 41 0 .50 .13 .42 .5 ,6
<br />Sulfate, dissolved (mgIL) 55 0 82 31 60 86 110
<br />Alkalinity, laboratory (mgIL) 15 0 128 28 113 132 154
<br />Carbonate, as calcium carbonate 8 0 2.4 3,0 0 1 4,8
<br /> (mgIL)
<br /> Bicarbonate, as caJciwn carbonate 8 0 142 43 102 143 183
<br /> (mgIL)
<br />Dissolved solids al 180 oC (mgIL) 23 0 277 83 200 306 335
<br />8 PhY8lcal, Chemlcll, end Biological Characteristics of Pueblo Re8ervolr, Colorado, 1985-89
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