Our Commitments
When Vulcan Materials Company acquired the Mission Gorge facility, the commitments outlined below had been made by Superior Ready Mix which we will continue to honor. If neighbors have questions about any item, we welcome the feedback and the opportunity to hear from you.
Rubberized Asphalt
Prohibit manufacturing and use of rubberized asphalt at the facility.
Rubberized asphalt has not been manufactured or used at this facility since prior to Vulcan Material Company's acquisition of Superior Ready Mix in 2024.
Water Sprays and Stockpile Watering
Water sprays at conveyor transfer points with weekly inspections; active stockpile areas watered by truck at two-hour intervals during loading.
This work continues today and logs track progress.
Street Sweeping
Street sweeper on the north side quarry entrance to 7198 Mission Gorge Rd., three times daily during plant operations, with written log.
A full-time team member operates the sweeper during operations.
Vegetative Barrier
Maintain vegetative barrier on property boundary.
We have planted native trees, filled gaps, and maintain them regularly.
Equipment Inspections
Inspection and maintenance schedule for equipment with capacity to create dust or odor, with written log.
Community Communications
Consistent communications with the community.
Please contact us at
wed-commrel@vulcanmaterials.com
or (619) 909-8752.
Blasting Compliance
Compliance with federal, state, and local rules on blasting.
We follow our internal blasting standards that exceed industry standards, including those recognized by Caltrans and the former U.S. Bureau of Mines research. Although not required to, we produce Community Monitoring Blast Reports and make those available upon request.
Noise Compliance
Compliance with local noise ordinances.
We comply with local noise ordinances at Vulcan Materials Company.
Explosives Handling
Comply with explosives use rules, including State of Calfornia Department of Industrial Relations. Explosives handling is performed by licensed third-parties. No explosives are ever stored at the Mission Gorge facility.
Air Quality Compliance
Compliance with federal, state, and local air quality regulations, including SDAPCD rules.
Dust Control Measures
Compliance with dust control provisions.
Measures include treatments on unpaved areas, paved high-traffic areas, regular watering, a full-time street sweeper operator, and a wheel wash to prevent track-out.
Excavation Fencing and Buffers
Fencing at excavation areas and buffer between the facility and Tierrasanta residences.
The entire site is fenced, and perimeter checks occur regularly.
Operating Hours
Compliance with weekday and weekend operating hours.
We comply with operating hours as outlined in our CUP.
Quarry Slope Access
Permanent fencing prevents public access to quarry slopes.
Fencing and gating are in place, including added protection near the northern trail.
Northern Boundary Landscaping
Northern boundary trees (eucalyptus or similar) for sound and screening; oleander or similar on north side of Mission Gorge Rd. between Princess View and Margerum.
The landscape and vegetation has been in place for years and is maintained regularly.
Site Housekeeping
Neat, orderly, tidy operations free of junk, litter, and debris.
Housekeeping is a standing part of how we operate — the Vulcan Way.
What’s changed since Vulcan Materials Company became the site operator
Since 2024, we have invested in upgrades across the facility, including:
Air Quality Practices
Air quality practices aligned with SDAPCD requirements.
Quieter Equipment
Quieter equipment — broadband ("quacker") back-up alarms replacing traditional beepers for night maintenance.
Baghouse Dust-Collection Upgrade
Baghouse dust-collection upgrade at ready-mix concrete facility.
Dust Control
Enhanced dust control at aggregate facility transfer points.
Traffic Dust Treatment
Improved traffic dust suppressant treatment.
Blast Oversight
New seismic monitoring infrastructure with Community Monitoring Blast Reports added to the website after each blast.
Improved Blast Design
Applied modern technologies to improve blast design.
Community Partnerships
Enhanced community partnerships with neighborhood outreach.
Safety Programs
Improved safety programs and workforce training — the Vulcan Way.