Jacobs, James

James A. Jacobs (San Francisco, CA) is chief hydrogeologist at Environmental Bio-Systems, Inc., has more than 20 years of environmental geology experience. He is the co-author, with Stephen Testa, of "Oil Spills and Gas Leaks".

Stephen M. Testa (Sacramento, CA) is executive officer of the California State Mining and Geology Board and past-president of both the American Institute of Professional Geologists and the American Geological Institute.