The basin configuration and climatic setting imply wide variability 

 in salinity at this site; late summer and fall dissolved solids 

 concentrations may be several times that observed at the time of 

 sampling. 



Sediments. Extractable arsenic, copper, nickel and zinc 

 concentrations ranked mid-range or below in comparison to other 

 unglaciated plains sites. Boron, chromium, iron and vanadium 

 concentrations ranked relatively high, and the selenium 

 concentration was among the three highest reported for the entire 

 data set. 



The selenium concentration exceeded the mean concentration for 

 soils of the western United States by a factor of 3, and the boron 

 concentration exceeded the regional mean soil concentration by a 

 factor of 2.4. The extractable nickel and zinc concentrations 

 exceeded regional mean soils concentrations by small factors. 



