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Purpose and Scope

The purpose of this report is to quantify and identify the principal sources

of metal loads to Daisy Creek and to examine the downstream transport of metals into the Stillwater River during August 24-27, 1999. Phys­ical and chemical data were collected at 25 mainstem and 29 inflow sites. The study reach included almost the entire length of Daisy Creek and an 850-ft reach of the Stillwater River downstream from the confluence of Daisy Creek (fig. 2). The total length of the study reach was 12,410 ft. This study was conducted in cooperation with the USDA-Forest Service.  

Metal loads in the mainstem were quantified from streamflow data determined by tracer injection and water-quality data obtained from analysis of synoptic samples. Loads contributed by surface inflows were determined from these data as well as from supplemental streamflow measurements made by conventional methods. Downstream profiles of metal loads provided the information needed to identify the principal sources of metals to Daisy Creek and the Stillwater River.

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