Sediments. The reported zinc, nickel, lead and selenium 

 concentrations ranked this site toward the upper end of the ranges 

 shown by this site classification. Reported arsenic, boron and 

 copper concentrations ranked low to intermediate within the site 

 classification. The reported selenium concentration exceeded the 

 mean soil concentration for the western U.S. by a factor of 1.7; 

 the zinc concentration exceeded the western U.S. mean by a factor 

 of less than 1.2. 



