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Valley Aquifer Project

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* Regarding the recycling of water in the San Fernando Valley as discussed in the Dec. 5 Times, it certainly makes sense from a conservation point of view.

However, when considering earthquake safety measures, the recycled water increases the liquefaction potential in the Valley, resulting in significantly increased damage potential during earthquakes there. Thus it seems more appropriate to allow water recycling in geologically less sensitive areas, but refrain from doing it in the Valley.

C.R. BERGER

Professor of Geography, Geophysics

and Anthropology, UCLA

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