Blasting Information

BLASTING AT MISSION GORGE: HOW IT WORKS

As a hard-rock operation, Mission Gorge occasionally uses controlled blasting to break rock into manageable sizes. Blasting is permitted only during designated daytime hours. Neighbors can sign up for blast notifications on our contact page.


STANDARDS WE FOLLOW

Blasting at Mission Gorge follows our internal blasting standards that meet or exceed industry standards, including those recognized by Caltrans and drawn from U.S. Bureau of Mines research on ground vibration and air overpressure. Blast data is recorded and reported for every event.


WHAT’S DIFFERENT ABOUT OUR APPROACH

Since taking over the facility, Vulcan’s blasting engineers have applied modern technologies to improve blast design. 


FREQUENTLY ASKED QUESTIONS
ABOUT BLASTING

  • During designated daytime hours only. 


  • Although we are allowed to blast approximately 275 feet from structures on the northeast property line, we will not blast within 500 feet of existing homes in Tierransanta or Allied Gardens. 


  • No explosives are stored on site.


  • We are committed to providing timely information about blasting activities. If you want to sign up for advance blast notifications, or if you have questions regarding collected blasting data and what it means, please reach out to us on our contact page.