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PLANNING COMMISSION TOWN OF LOS ALTOS HILLS MINUTES OF A REGULAR MEETING Preceded by a Study Session April II, 1973 Study Session Reel PC 14; Side 2; Track 1 000-279 The Study Session of the Planning Commission of the Town of Los Altos Hills met at 8:00 PM, with Vice Chal man James Mueller presiding. A. ITEMS FOR DISCUSSION I. Report from Committee to discuss preparation of a study of geological faults and earthquake hazards in the Town. Commissioner Lachenbruch reviewed the purposes and history of the Committee's formation, pointing out that some similarities exist between the fault system involved in the San Fernando earthquake, and that which runs through Los Altos Hills, so that a study of such faults within the Town Is extremely Important. Town Planner George Mader referred to a fault hazard study carried E. out by the Town of Portola Valley which resulted in zoning ordinance changes for that community, forbidding, for Instance, construction of buildings for human habitation within 100 feet of the fault line established by the study. Mr. Mader further reported that the Committee had considered a pro- posal prepared by Bill Dickinson, outlining a two-stage fault study, to be completed in two annual phases, each covered by pro- gress reports on November I and March 1, plus annual reports on July I. The first annual stage, with an estimated cost of $5500, would involve a general geologic map and a preliminary fault - trace map of the half of the Town traversed by the Black Moun- tain fault complex. The second annual stage, with an estimated cost of $7500, would Involve a specific evaluation of the potential for rift hazard for each fault trace mapped. The Report further offered the name of Mr. Kerry Sieh, a graduate student at Stanford University, as an appropriate investigator for carrying out such a study. Follow Ing discussion, the Planning Commission agreed to consider further the budgeting and planning of a geological fault study following a general consideration, at its next Study Session, of the Planning portion of the Town's proposed budget for Fiscal '73 - '74.