See journals under US Geological survey. Prof. paper 1401-A.

Excerpt from Character and Evolution of the Ground-Water Flow System in the Central Part of the Western San Joaquin Valley, California Most recently, Williamson Diamond and Williamson and Williamson and others (1985) conducted a comprehensive investigation of the flow system for the entire Central Valley. That study, which was part of the Regional Aquifer System Analysis (rasa) program of the o.s. Geological Survey, provides an assessment of the flow system in the Central Valley under natural conditions and for 1961 - 77. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.