Robert M. Gailey, PG, CHG
Consulting Hydrogeologist PC

rob@rmgailey.com | (415) 407-8407

© 2019 Robert M. Gailey Consulting Hydrogeologist PC, All rights reserved

Background graphic modified from R.W. Page, Geology of the Fresh Ground-Water Basin of the Central Valley, California with Texture Maps and Sections, U.S. Geological Survey Professioal Paper 1401-C (Figure 3, Page C6)