Impact of seawater intrusion control on the liquefaction susceptibility of the coastal plain, Ventura County, California

Ground water degradation due to the intrusion of sweater is an ever-present threat to the numerous consumers who pump from aquifers underlying the coastal plain of Ventura County. The executive use of ground water for municipal, industrial, and agricultural purposes has resulted in a serious overdraft condition that has allowed seawater to flow inland to replace the extracted ground water. Because of this situation, the Governor of California has designated the coastal plain as an area with substantial water quality control problems, in conformation with the Federal Water Pollution Control Act Amendments of 1972. Since 1975,, preliminary planning studies have been conducted by the County of Ventura in an attempt to formulate an effective solution to the problem. (See more in text.)