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V <br />Table 14. -- Trend - analysis results of selected water - quality properties and constituents for water - quality station <br />07103780 Monument Creek above North Gate Boulevard at U.S. Air Force Academy <br />[ft /s, cubic feet per second; pS /cm, microsiemens per centimeter at 25 degrees Celsius; °C, degree Celsius; <br />mg /L, milligrams per liter; pg /L, micrograms per liter;. /100 mL, colonies per 100 milliliters; - , insufficient <br />data; *, moderately significant trend, the significance level is less than or equal to 0.1 and greater than 0.05; <br />**, significant trend, the significance level is less than or equal to 0.05 and greater than 0.01; ***, very <br />significant trend, the significance level is less than or equal to 0.011 <br />Number Period Significance level Trend <br />Number of of Number Adjusted slope <br />Property or constituent Units of censored record of Unadjusted for serial (units <br />values values (water year), years correlation per year) <br />C) <br />- <br />us <br />4-b <br />Instantaneous streamflow <br />ft /s <br />93 <br />0 <br />1984 -88 <br />5 <br />5 <br />0.0002 -- <br />0.0002 <br />-3*** <br />11*** <br />Specific conductance <br />NS /cm <br />87 <br />0 <br />0 <br />1984 -88 <br />1984 -88 <br />5 <br />0.0015 <br />0.1**^' <br />pH <br />standard <br />°C <br />58 <br />88 <br />0 <br />1984 -88 <br />5 <br />0.0708 -- <br />0.5* <br />Water temperature <br />mg /L <br />59 <br />0 <br />1984 -88 <br />5 <br />0.0906 -- <br />-0.2* <br />Dissolved oxygen <br />Dissolved chloride <br />mg /L <br />61 <br />0 <br />1984 -88 <br />5 <br />0.0002 <br />0.0430 <br />1.2*** <br />1.0** <br />Dissolved sulfate <br />mg /L <br />56 <br />0 <br />1 <br />1984 -88 <br />1984 -88 <br />5 <br />5 <br />0.0053 -_ <br />-7* "" <br />Suspended solids <br />m 8/ L <br />mg /L <br />56 <br />61 <br />0 <br />1984 -88 <br />5 <br />0.0137 -- <br />0.058** <br />Nitrite plus nitrate as nitrogen <br />/L <br />61 <br />3 <br />1984 -88 <br />5 <br />0.5869 -- <br />0.014 <br />Total ammonia as nitrogen <br />mg <br />Un- ionized ammonia as nitrogen <br />mg /L <br />55 <br />0 <br />1984 -88 <br />5 <br />0.0025 =_ <br />0.1347 <br />0.0022' <br />0.10 <br />Total ammonia plus organic <br />mg /L <br />56 <br />0 <br />1984 -88 <br />5 <br />ni tro g en <br />mg /L <br />i <br />54 <br />0 <br />1984 -88 <br />5 <br />__ <br />0.0296 <br />0.11 <br />Total organic nitrogen as <br />nitrogen <br />Total recoverable copper <br />Ng /L <br />56 <br />0 <br />1984 -88 <br />5 <br />-- <br />0.5676 -_ <br />0.4306 <br />0.0 <br />- 3 <br />Dissolved iron <br />Ng /L <br />56 <br />1 <br />1984 -88 <br />5 <br />Total recoverable iron <br />pg /L <br />56 <br />0 <br />1984 -88 <br />5 <br />5 <br />0.0303 =_ -180^* <br />0.5223 <br />0.0 <br />Dissolved manganese <br />N8/ L <br />56 <br />0 <br />0 <br />1984 -88 <br />1984 -88 <br />5 <br />__ <br />0.8735 <br />0.0 <br />Total recoverable manganese <br />demand <br />Ng /L <br />mg /L <br />56 <br />44 <br />0 <br />1984 -88 <br />5 <br />0.0959 __ <br />0.3* <br />5 -day biochemical oxygen <br />44 <br />3 <br />1985 -88 <br />4 <br />0.7173 -- <br />-0.06 <br />Fecal coliforml <br />/100 ML <br />47 <br />0 <br />1985 -88 <br />4 <br />0.6397 -- <br />-0.09 <br />Fecal streptococcus) <br />/100 ML <br />1 Trend slope is slope of logarithms. <br />