concentrations ranked mid-range for sample sites in this class. 

 Other trace elements were below detection limits. 



Chenical history. No other chemical data are known for this site. 



Sediments. Extractable trace element concentrations showed a 

 similar pattern to that for WET15. Copper and selenium 

 concentrations ranked toward the high end for the site 

 classification; arsenic and zinc concentrations ranked in the mid- 

 range. Selenium and copper concentrations exceeded mean soil 

 concentrations for the western U.S. by factors of 2, while arsenic 

 and zinc concentrations were less than the regional soil means. 



