This is a work in progress. At the present time the tables are not readable and we are missing figure 14 and some text.
Since Sonoma County was first settled, ground water has played an important role in domestic, agricultural, and urban water development. Because ground water will continue to be important to the future development of Sonoma County, a cooperative study of the ground water resources of the County was begun in 1971 to provide the County Planning Department with information needed to prepare pertinent elements of its General Plan and also to provide the State with information on the ground water resources needed for statewide planning.
This bulletin provides basic information on the geology and hydrology of the ground water systems underlying Sonoma County as well as information on rural septic tank systems. This information will be useful to those involved in all phases of planning and to those interested in the development of water wells and the placement of septic systems in rural areas.
As part of the continuing effort to integrate the use of surface water, ground water, and reclaimed waste water, the Department and the Sonoma County Water Agency will start the second phase of this study in late 1975. As part of the second phase, mathematical models will be developed for the mayor ground water basins underlying the Santa Rosa Plain and the Petaluma and Sonoma Valleys. The models developed will represent the ground water basin's reaction to rainfall, runoff, irrigation, and man's alteration of the earth's surface and resources. Once verified by historic events, the model is used to predict reactions to future conditions.
The second phase will evaluate the probable future water demands of Sonoma County and several alternative mixes of Russian River water, reclaimed waste water, ground water, and water conservation measures. Each of the alternatives will be tested on the ground water model to determine its effect on the ground water resource. The product of the study will be an evaluation of each of the alternative management plans and recommendations on which of the alternatives appear superior from economic, engineering, and environmental bases.
Ronald B. Robie, Director, Department of Water Resources, The Resources Agency, State of California
Table of Contents
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Chapter I Introduction and Summary
Chapter II Geology and Hydrology
Chapter III Water Supply Systems
Chapter IV Sanitary Waste Disposal Systems
Chapter V Ground Water Resources
Chapter VI Water Quality Hazards
Appendix C English Metric Equivalents
Appendix D Ground Water Geology
Appendix E Soil Percolation Testing Criteria
Appendix F Water Quality Criteria
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