DISCUSSION OF "Classification of Ground-Water Systems of the United States," by Ralph C. Heath, July-August 1982 issue, v. 20, no. 4, pp. 393-401

Ground Water ◽  
1982 ◽  
Vol 20 (6) ◽  
pp. 748-748
Author(s):  
Allen F. Agnew
2020 ◽  
Author(s):  
Janice Beecher ◽  
Kyle Redican ◽  
Megan Kolioupoulos

Fact Sheet ◽  
2000 ◽  
Author(s):  
Alan H. Welch ◽  
Sharon A. Watkins ◽  
Dennis R. Helsel ◽  
Michael J. Focazio

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