SUNOL, CA-An advocacy group fighting construction of a 242-acre mining quarry in Sunol, Calif. are pinning their hopes on a recently passed local open-space measure. Measure D stipulates that no new quarries may be approved by Alameda County. However, county officials gave the green light to the proposed quarry, which would be built by developer Mission Valley Rock Co., back in 1994.

The issue will be discussed Wednesday at a public hearing of the San Francisco Board of Supervisors. Mission Valley sources say they are unworried by Measure D, since it affects only future quarry permits. However, members of the advocacy group Save our Sunol say differences between the 1994 permit and a quarry lease still under consideration by the city and county of San Francisco mean that the quarry falls under the auspices of Measure D.

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