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Table 12.-- Summary statistics for streamflow and selected water - quality properties and constituents at <br />water - quality station 07106500 Fountain Creek at Pueblo <br />[ft /s, cubic feet per second; NS /cm, microsiemens per centimeter at 25 degrees Celsius; °C, degree Celsius; mg /L, milligrams per liter; <br />Ng /L, micrograms per liter; /100 mL, colonies per 100 milliliters; - - -, no stream standard; E, estimated using methods described by <br />Helsel and Cohn (1988); <, less than] <br />Number Number Period <br />Property or constituent Units of of of Standard Lower <br />censored record Mean minimum Median Upper <br />values deviation quartile quartile Maximum <br />values <br />(water year) <br />Instantaneous streamflow <br />ft /s <br />266 <br />0 <br />1976 -88 <br />125 <br />162 <br />Specific conductance <br />NS /cm <br />265 <br />0 <br />1976 -88 <br />1,590 <br />796 <br />0.1 <br />24 <br />74 <br />149 <br />1,100 <br />pH <br />standard 89 <br />0 <br />1981 -88 <br />8.1 <br />0.3 <br />566 <br />1,180 <br />1,410 <br />1,800 <br />6,000 <br />Water temperature <br />°C <br />225 <br />0 <br />1976 -88 <br />15.6 <br />8.5 <br />7.3 <br />8.0 <br />8.2 <br />8.3 <br />8.7 <br />Dissolved oxygen <br />mg /L <br />92 <br />0 <br />1981 -88 <br />9.2 <br />0.0 <br />8.5 <br />16.0 <br />22.5 <br />33.0 <br />Hardness as calcium <br />mg /L <br />11 <br />0 <br />1981 -82 <br />520 <br />2.1 <br />140 <br />4.5 <br />7.8 <br />9:0 <br />11.0 <br />15.2 <br />carbonate <br />320 <br />400 <br />520 <br />610 <br />770 <br />Dissolved calcium <br />mg /L <br />11 <br />0 <br />1981 -82 <br />130 <br />31 <br />Dissolved magnesium <br />mg /L <br />11 <br />0 <br />1981 -82 <br />48 <br />83 <br />100 <br />130 <br />150 <br />180 <br />Suspended solids <br />mg /L <br />88 <br />p <br />1981 -88 <br />576 <br />17 <br />1,060 <br />28 <br />6 <br />36 <br />4 7 <br />58 <br />78 <br />Nitrite plus nitrate as <br />m 8/ L <br />90 <br />1 <br />1981 -88 <br />4.7 E <br />124 <br />264 <br />486 <br />6,760 <br />nitrogen <br />1.5 E <br /><0.10 <br />3.6 <br />4.6 <br />5.4 <br />11 <br />Total ammonia as nitrogen <br />Un- ionized ammonia as <br />mg /L <br />mg /L <br />88 <br />84 <br />1 <br />1981 -88 <br />0.41 E <br />0.77 E <br /><0.01 <br />0.06 <br />0.08 <br />0.32 <br />4.1 <br />nitrogen <br />0 <br />1981 -88 <br />0.0089 <br />0.012 <br />0.00050 0.00240 0.0040 0.0090 0.070 <br />Total ammonia plus organic <br />nitrogen <br />mg /L <br />87 <br />1 <br />1981 -88 <br />2.3 E <br />1.8 E <br />0.20 <br />1.1 <br />1.8 <br />Total organic nitrogen as <br />nitrogen <br />mg /L <br />86 <br />0 <br />1981 -88 <br />1.9 <br />1.5 <br />0.13 <br />0.92 <br />1.5 <br />3 <br />12 <br />2.1 <br />8.5 <br />Total phosphorus <br />Total cadmium <br />mg /L <br />Ng /L <br />10 <br />20 <br />0 <br />1981 -83 <br />1.0 <br />0.66 <br />0.24 <br />0.43 <br />0.93 <br />1.8 <br />2.0 <br />Total recoverable copper <br />Ng /L <br />20 <br />13 <br />0 <br />1981 -83 <br />1981 -83 <br />0.75 E <br />0.90 E <br /><1 <br />0.47 <br />E 0.74 <br />E 1.2 <br />4 <br />Dissolved iron <br />Ng /L <br />11 <br />4 <br />1981 -82 <br />23 <br />17 E <br />19 <br />4.00 <br />12 <br />19 <br />24 <br />80 <br />Total recoverable iron <br />Total recoverable lead <br />Ng /L <br />Ng /L <br />20 <br />20 <br />0 <br />1 <br />1981 -83 <br />15,000 <br />14 E <br />16,000 <br /><3 <br />80 <br />6 <br />3,900 <br />15 <br />9,800 <br />23 <br />21,800 <br />50 <br />55,000 <br />Dissolved manganese <br />Ng /L <br />11 <br />0 <br />1981 -83 <br />1981 -82 <br />14 E <br />24 <br />15 E <br /><1 <br />6 <br />12 <br />18 <br />69 <br />Total recoverable manganese <br />pg /L <br />20 <br />p <br />1981 -83 <br />450 <br />43 <br />460 <br />3 <br />6 <br />9 <br />20 <br />150 <br />Total recoverable nickel <br />Ng /L <br />20 <br />0 <br />1981 -83 <br />20 <br />30 <br />140 <br />315 <br />610 <br />1,700 <br />Total selenium <br />Ng /L <br />20 <br />0 <br />1981 -83 <br />32 <br />15 <br />45 <br />2 <br />10 <br />14 <br />24 <br />60 <br />Total recoverable zinc <br />pg /L <br />20 <br />0 <br />1981 -83 <br />120 <br />90 <br />1 <br />14 <br />18 <br />27 <br />200 <br />5 -day biochemical oxygen <br />en <br />m L <br />8/ <br />75 <br />0 <br />1981 -88 <br />9.0 <br />7.3 <br />10 <br />60 <br />100 <br />140 <br />370 <br />demand <br />1.0 <br />3.8 <br />6.6 <br />12 <br />34 <br />Total coliform bacteria <br />Fecal coliform bacteria <br />/100mL <br />/100mL <br />12 <br />43 <br />0 <br />1985 <br />4,800 <br />5,100 <br />540 <br />1,200 <br />2,200 <br />7,900 <br />15,000 <br />Fecal streptococcus bacteria <br />/100mL <br />43 <br />4 <br />1 <br />1985 -88 <br />1985 -88 <br />670 E <br />2,100 E <br /><4 <br />37 <br />130 <br />320 <br />13,000 <br />1,700 E <br />4,200 E <br />29 <br />210 <br />390 <br />1,000 <br />24,000 <br />'For stream segment 2 (Colorado <br />Department <br />of Health, <br />1989). <br />Water - <br />quality <br />stand - <br />ardl <br />6.5_9.0 <br />5.0 <br />10 <br />10 <br />200 <br />300 <br />50 <br />150 <br />200 <br />10 <br />2,000 <br />2,000- <br />