Conclusions 



The high saHnities achieved at Pryse pond through evapoconcentration of drainage 

 waters presents extremely high concentrations of B and Mo in the environment. Arsenic seems 

 to maintain a level concentration in the pond waters independent of the degree of salinization. 

 Selenium was not detectable at Barbizon pond, and did not rise significantly in highly 

 concentrated waters at Peck or Pryse ponds. The degree to which these trace elements 

 accumulate in the pond waters may be calculated and the results are presented in the section on 

 evapoconcentration factors elsewhere in this report. Furthermore, the accumulation of certain 

 trace elements depends on the location of the ponds in the San Joaquin Valley relative to the 

 geologic setting. 



Whether these levels of trace elements pose substantial risks to wildlife and waterfowl 

 needs to be answered by those researchers studying the toxicological effects and concentrations 

 in the biological components. 



page 2.4 



