Quarry Supervisor at CalPortland Oro Grande, CA
Job Summary
The Quarry Supervisor oversees daily operations at the quarry, ensuring efficient and safe extraction, processing, and delivery of raw materials to meet production targets. This role is responsible for supervising quarry crews, managing equipment and resources, enforcing safety standards, and coordinating with plant management to ensure alignment with operational and quality requirements.
Benefits
CalPortland is proud to offer a comprehensive, competitive benefits package that provides health and financial support to our most important resources: our employees. Your benefits are an important part of your overall compensation at CalPortland. That’s why we give you a wide range of benefits to choose from.
Medical, Dental, Vision
low-cost premiums even for family coverage
Company-paid life/AD&D insurance
Company-paid short-term disability
Paid sick/vacation/holiday
401k/Company Funded Pension Program (program is dependent upon location and job type)
Employee Assistance Program (EAP)
Additional voluntary benefits
Compensation
$85,000 - $100,000 is the associated range, depending on experience.
Responsibilities
Supervise and coordinate daily quarry production activities, including drilling, blasting, loading, hauling, and crushing
Ensure compliance with all MSHA/OSHA, environmental, and company safety policies and procedures
Monitor production metrics, report on performance, and implement improvements to optimize efficiency and reduce downtime
Oversee the maintenance and safe operation of quarry equipment, ensuring adherence to preventative maintenance schedules
Support mine planning activities by coordinating extraction sequences and aligning production with long-term quarry plans
Manage stockpiles, inventory, and raw material flow to ensure consistent quality and supply for downstream operations
Coordinate and supervise blasting operations, ensuring proper handling of explosives and compliance with regulations
Conduct inspections of work areas, equipment, and processes to ensure quality standards and identify hazards
Provide leadership, training, and performance feedback to quarry employees to develop skills and maintain high morale
Collaborate with plant, quality, and maintenance teams to ensure operational goals are achieved
Responsible for creating shift schedules, managing crew overtime assignments, arranging for vacation coverage, and approving employee timesheets
Fills in for the Mobile Equipment Maintenance Manager when that employee is on vacation
May be required to work extended hours, weekends, and holidays as production demands dictate
Education
Bachelor’s degree in mining engineering, geology, or related field preferred; equivalent experience may be considered
Requirements/Qualifications
5+ years of experience in quarry, aggregates, or mining operations, with at least 2 years in a supervisory role
Comprehensive knowledge of quarry equipment, production methods, and safety regulations
Strong leadership, communication, and problem-solving skills
Proficiency in quarry management software, MS Office Suite, and data reporting toolsRequires regular presence in outdoor and industrial environments - Ability to work with exposure to dust, noise, and weather conditions
Quarry Operations Management – Knowledge of quarrying processes, blasting, crushing, screening, and material handling
Equipment Operation & Maintenance – Proficiency with heavy equipment and knowledge of preventative maintenance
Mine Planning & Scheduling – Ability to interpret quarry plans and align daily production with long-term strategies
Safety & Regulatory Compliance – Strong knowledge of MSHA/OSHA and environmental safety requirements
Quality Control & Material Specifications – Understanding raw material testing and compliance standards
Drilling & Blasting Fundamentals – Knowledge of blast design, drilling techniques, and vibration control
Production Reporting & Data Analysis – Skills in using quarry management systems and performance reporting
Environmental Management – Knowledge of dust suppression, water management, and reclamation requirements
Inventory & Stockpile Management – Ability to manage stockpiles and ensure proper material flow
Team Leadership & Training – Strong leadership and crew development skills
Conditions of Employment
Successful candidate must submit to a post-offer pre-employment physical examination, drug/alcohol screen, and background check. Some positions require Federal Motor Carrier Safety Administration (FMCSA) registration/clearance as well as ongoing alcohol and drug testing.
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