California,Arizona Investigate Hazardous Waste in Colorado

摘要

Local governments must take precautions to prevent chromium 6 from entering the Colorado River and contaminating water supplies.California and Arizona officials found the chemical seeping toward the Colorado River earlier this year.This ground water plume originated from the Pacific Gas & Electric(PG&E)Topock pumping station.The contaminated water has undergone treatment in Needles,Calif.