analysis showed specific conductance of about 80% that measured 

 for the DHES sample, lower pH and alkalinity, and lower (possibly 

 erroneous) cation concentrations. 



Sediments. The comparatively high extractable calcium 

 concentration probably reflects authigenic carbonate formation in 

 Turtle Lake. Most extractable trace element concentrations were 

 below reporting limits. Arsenic, iron and zinc concentrations were 

 comparatively low, while the selenium concentration reported ranked 

 toward the upper end of the range shown by this site class. 



