PSM Hazard Analysis
Structured PSM and hazard analysis services including HAZOP, LOPA, PHA, What-If/Checklist reviews, incident investigation support, EPA RMP support, and OSHA 1910.119 program development.
Hixson helps California food, beverage, cold storage, and cGMP facilities manage ammonia refrigeration risk with PSM-centered engineering, hazard analysis, and compliance support. From PHA and HAZOP studies to OSHA 1910.119 documentation and refrigeration system design integration, our team brings practical process expertise for operations facing California’s rigorous safety and environmental expectations.

Integrated engineering, compliance, and hazard analysis support for safer, better-documented refrigeration systems.
Structured PSM and hazard analysis services including HAZOP, LOPA, PHA, What-If/Checklist reviews, incident investigation support, EPA RMP support, and OSHA 1910.119 program development.
Engineering for ammonia and freon-based refrigeration systems, including refrigerated coolers, freezers, cold rooms, controls integration, and PSM-compliant ammonia system documentation.
Design support for refrigerated warehouses, blast and IQF freezing, AS/RS cold environments, dock seals, refrigerated docks, and cold chain logistics infrastructure.
Workplace safety engineering covering OSHA 1910.119 PSM, lockout/tagout program support, machine guarding review, confined space, fall protection, and NFPA 70E electrical safety.
Environmental, health, and safety compliance services integrated with facility design, including hazardous materials, combustible dust, OSHA workplace safety, and process safety management requirements.
Manufacturing engineering support for P&IDs, equipment layouts, utility requirements, HAZOP review, equipment specifications, FAT/SAT, startup, and commissioning for complex regulated facilities.

Hixson begins by reviewing the ammonia refrigeration system, process boundaries, P&IDs, utility interfaces, equipment lists, and operating context to define which assets, chemicals, and facility areas fall within the PSM program.
Hixson supports complex regulated facilities for leading food, beverage, pharma, biotech, and industrial clients.
Hixson brings integrated engineering depth to refrigeration safety and compliance challenges.
Deep facility engineering experience since 1948 supports high-stakes refrigeration and process safety decisions.
Twenty in-house technical disciplines coordinate PSM with refrigeration, controls, utilities, and facility design.
Experience with OSHA 1910.119 helps California operators address rigorous safety documentation expectations.
Food, beverage, pharma, and cold chain expertise fits California’s diverse production and storage operations.
Specialized leaders supporting complex refrigeration and safety programs.

Manager, Plumbing Systems & Fire Protection Engineering
John oversees the department responsible for the design and engineering of plumbing systems and fire protection engineering for a variety of project types, including new construction, building utility upgrades, utility capacity analyses, and process line additions. John and his team work with a range of systems, including domestic water, process water, hot water production, direct contact water heaters, high pressure/rinse water, compressed air, natural gas, sanitary drainage, process drainage, central sanitation systems, fire pumps, and fire sprinkler systems.

Manager, Controls & Automation Engineering
As the Manager of Hixson's Controls & Automation department, Craig guides the team responsible for designing, implementing, and commissioning advanced control systems and automation solutions. His responsibilities include overseeing the development of automation strategies that streamline manufacturing processes, enhance operational efficiency, and ensure seamless integration of new and existing systems.

Manager, Process Engineering
Warren leads the team providing processing design services, process optimization studies, and process commissioning and FAT, SAT, and IQ activities. He advises on waste, energy, and GHG emissions reductions, and conducts safety and dust evaluations, including PSM/HAZOP. His expertise spans all food and beverage sectors including fluid, dried and cultured dairy products, processed meat, flavors, and prepared foods. Warren is also on the IDFA Food Safety Committee and actively participates in the 3A, SSI steering committee, and work groups.

Manager, Civil Engineering
In his role as Manager of Civil Engineering, Steve leads the team responsible for the planning, design, and engineering of roads, stormwater hydraulics and modeling, and onsite utilities. On project work, Steve is responsible for civil site project design, specifications, technical design, and project coordination with the client, government regulatory bodies, outside consultants, and contractors. As a senior staff member with our firm, Steve also serves as a mentor to newer associates.

Vice President & Director, Project Management Services
Chris, a Hixson officer and member of the Board of Directors, oversees Hixson’s Project Management, Cost Estimating, and Construction Administration departments. Chris also serves in a project management role, leading teams consisting of representatives from the client, Hixson, contractors, and vendors to effective project completion. Chris assumes overall responsibility for development of project delivery strategies, coordination of all Hixson disciplines, and facilitating effective communication and management to focus resources on delivering high-quality projects on time and within budget.

Manager, Mechanical Engineering
Dave brings more than three decades of experience to his role as the Manager of Hixson’s Mechanical Engineering Department. His work has included the design and project management of new facilities, as well as modification of existing facilities for high technology and food processing industries. At a corporate level, Dave is a member of Hixson’s Dairy and Beverage Industry team, which works to continuously improve the value Hixson offers to the dairy industry through development of our knowledge base, services and capabilities.

Manager, Electrical Engineering
Kyle serves as the Manager of Hixson’s Electrical Engineering department. In this role, he oversees the team responsible for the creation and delivery of electrical designs. This includes the design of high, medium, and low voltage power distribution, lighting, telecommunications, and fire alarm systems. Kyle brings more than 15 years of experience in electrical consulting and design to his role. Areas in which Kyle specializes include electrically hazardous area classification, high- and medium-voltage power distribution, protective relaying, arc flash studies, harmonics analysis, cogeneration design, emergency systems design, and complex laboratory designs.

Senior Vice President, and Director, Mechanical & Electrical Engineering
Scott, an officer of the firm, leads the teams responsible for mechanical and electrical project tasks and design, specifications, technical content, consultation during equipment selection and installation and systems start-up assistance. In addition, Scott also serves as the Quality Assurance Manager, overseeing the firm’s commitment to quality. Over Scott’s more than three decades of experience, he has worked on greenfield, brownfield, and renovation projects for food & beverage plants in all sectors, labs, pharma & biotech facilities, and workplace projects.

Manager, Manufacturing Engineering
In his role as Manager of Hixson’s Manufacturing Engineering department, Scott leads the team responsible for project consulting and coordination between client, vendor, and internal disciplines within Hixson for overall manufacturing processes, functionality, equipment, and layouts. These team members develop process flow diagrams, equipment lists, and preliminary utility requirements, as well as develop equipment layouts that range from high level master planning to detailed construction documents. In addition to this role, Scott is a member of Hixson’s Meat Industry advisory team, focusing on technologies related to the meat and plant protein industry.

Director of Architecture
Derek is the Director of Hixson’s Architecture department. In this role, Derek leads the teams who design projects for our Food & Beverage, Pharma & Biotech, Laboratory, and Workplace clients. Previously, Derek served as the Manager of Hixson’s Process Layout department, where he directed the team that plays a critical coordination role in the overall development of process models and the 3D equipment model management process. Prior to these management roles, Derek, who began his career with Hixson in 2008, served as a Project Architect.
PSM, or Process Safety Management, is a structured OSHA 1910.119 framework for managing highly hazardous chemicals such as ammonia used in industrial refrigeration. In refrigeration, PSM typically addresses process safety information, hazard analysis, operating procedures, training, mechanical integrity, management of change, incident investigation, and emergency planning. The goal is to reduce release risks and improve operational readiness.
Talk with Hixson’s engineering team about your facility’s requirements.
Certified workplace with strong associate culture.
Ranked No. 178 by Interior Design magazine.
Recognized in core architecture and engineering sectors.
Share your facility goals, ammonia refrigeration scope, and compliance needs. Hixson will help identify the right engineering, hazard analysis, and documentation support for your project.
For immediate assistance, feel free to give us a direct call at +1 513-241-1230. You can also send us a quick email at info@hixson-inc.com.
For immediate assistance, feel free to give us a direct call at +1 513-241-1230. You can also send us a quick email at info@hixson-inc.com.