Bulletin 1.pdf - California Department of Water Resources - State of ...

28 WATER RESOURCES OF CALIFORNIA
reclamation is necessary for planning and designing the various features
of the reclamation process. Domestic sewage may be of snfficiently good
mineral quality to be reclaimable for irrigation and industrial uses. By
contrast, sewage containing certain industrial wastes may be highly
mineralized and not acceptable for irrigation. Mineral solubles from
industrial sources are especially harmful when composed of high salt
concentrations.
Investigation of the feasibility of reclaiming and utilizing sewage
is recognized as a phase in planning for complete or ultimate development
of the water resources of California. However, because of presently
unsolved problems in the reclamation and utilization process, and lack
of reliable data on quantity of sewage available and its quality, sewage
has not been considered in this bulletin as a primary water resource of
the State.
Tentative evaluations of potential sources of reclaimable sewage
and waste waters in the San Francisco Bay and South Coastal Areas,
with respect to both quantity and quality, are included in this bulletin
as Appendix A, "Reclamation of Sewage and Waste Waters." Flow data
presented are limited to total quantities measured or estimated at points
of outfall to San Francisco Bay Or the Pacific Ocean, and in all cases pertain
to dry weather flow exclusive of storm waters.
Disposal of sewage onto lands overlying underground basins and
into inland streams augments ground water replenishment and stream
flow. Sewage so disposed of is generally recoverable for re-use by natural
processes of reclamation, and is not considered in Appendix A.