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West Coast Aggregates Proposes 100-Year Plan

Pilarcitos Quarry, Half Moon Bay, Calif., is seeking approval for a 100-year plan to extract as many as a million tons of aggregate from canyon walls surrounding its current quarry operation, pending approval by the San Mateo County Planning Commission. The expansion would incorporate another 117 acres of steep forested land surrounding the floor of the quarry, which has been in operation since 1933.

The Planning Department recently released an environmental-impact report on the project and is accepting public comments. Company President Dick DeAtley told the local media that the quarry is the “last source for local aggregates in San Mateo County." West Coast Aggregates supplies all the sand, rock and concrete aggregate used by the city of San Francisco. Without it, project backers and local environmentalists agree, importing all that material would create more truck traffic, pollution and cost for the city.

The project's most powerful prospective opponent, the Committee for Green Foothills, reportedly supports West Coast Aggregates proposal because it will set aside more than 200 acres for wildlife protection.