Controlled Blast Scheduled for North Shaft on Thursday, June 11
Controlled blasting is scheduled for Thursday, June 11th at the North Shaft, located on Crystal Springs Road near the intersection of Polhemus Road. Controlled blasting can take place between 7am and 6pm Monday through Friday. All safety and noise control measures are in effect and the work is performed in accordance with California Occupational Safety and Health (OSHA) and environmental regulations. All indicators for vibration, noise and air particulates are below the thresholds and are measured constantly.