CEMEX’s proposed Rockfield Expansion Project near Friant is drawing criticism from environmental advocates who say it could threaten the San Joaquin River, and nearby homes. The company wants to expand its existing quarry using explosive blasting to mine rock for construction materials. The proposal has raised concerns about wildlife, water quality, and families living near the site. … The conservation group American Rivers ranked the San Joaquin second on its 2026 list of America’s Most Endangered Rivers, citing the proposed expansion. But supporters say the project is important for the valley’s economy. The Central Valley Business Federation, which counts CEMEX as a member, says the quarry supports 100 union jobs and an estimated 750 indirect jobs. 

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• KVPR (Fresno, Calif.): Vote on CEMEX blast mine set for this week. Why is a lame-duck body making the decision?