Project Cornerstone Forms to Educate Community about the Importance of Construction Aggregates Industry

A group of local San Diego construction aggregate producers decided to form Project Cornerstone, Inc., a grassroots organization dedicated to educating the public about the importance of local construction aggregates (i.e., sand, gravel and crushed stone), at a meeting where they gathered to learn about the history of the Surface Mining and Reclamation Act of 1975 (SMARA), at the King’s Inn on March 25, 2014.

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