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Bath Process Safety Management Company was created in 2012 to more effectively market the common sense approach to conducting hazardous area classifications (electrical area classifications) developed by Mr. Jim Johnston.  This initial focus has expanded into services including:

  • Hazardous area classifications (electrical area classifications) assessment
  • Process electrical compliance assessment (findings and remediation)
  • Gas monitoring detection design
  • HAZOP and process safety review support
  • Safety shutdown/process control system review
  • Vessel over-pressure protection review
  • Building/equipment siting recommendations
  • Work process redesign to maintain ‘evergreen” process safety information
  • Area Classification Subject Matter Expert (SME) via professional services contract

Bath Group, Inc. was founded in 1957 by Mr. Kenneth A. Bath to provide professional mechanical, electrical, process safety management, and instrumentation engineering services for industrial and governmental clients.  In 2012, Bath Process Safety Management was formed to more effectively market the firm’s common sense approach for conducting hazardous area classifications (electrical area classifications).  Since then, the services offered by Bath PSM have expanded to include electrical compliance assessment (findings and remediation), gas monitoring detection design, HAZOP and process safety review support and work process redesign, safety shutdown/process control system review, vessel over-pressure protection review, and building/equipment siting recommendations.

Mission Statement – Bath PSM

The mission of the Bath Process Safety Management team is to apply a “common-sense” approach in the application of codes, recommended practices, and standards as we perform the various studies and evaluations for our clients.

Vision Statement – Bath PSM

Achieve national recognition for our expertise in process electrical safety compliance.

  • Work responsibly with our client’s employees and surrounding community in mind
  • Safety enhanced by our quality of work
  • Ethics in place for all financial transactions
  • Operate with a team approach within Bath PSM and Bath Group
  • Clear communication
  • Work performed with the best interests of our clients in mind

Mr. James Johnston, P.E.

Jim Johnston

Principal Process Electrical Safety Engineer

Education and Certifications:
Bachelor of Science Electrical Engineering, University of Houston
Licensed Professional Engineer, Texas

Employment History:

Previously with Houston Lighting & Power Co. (Houston, Texas) assigned as a Power Engineer and Hoechst Celanese (Bishop, Texas) as a lead Electrical and Instrumentation Engineer.  His experience in petrochemical and petroleum industries covered design of process safety shutdown systems, conducting electrical safety reviews, compliance design solutions implementation, participation in process safety reviews, and installed field instrumentation application and control system designs.  Currently with Bath Engineering Corp. where he has become nationally recognized through his expertise on site Hazardous Area Classification evaluation and  compliance auditing regarding issues of electrical safety in hazardous locations.

Published in:

Hydrocarbon Processing November 2008 Article is titled “A Common Sense Approach to Hazardous Area Classification”.

ISA 2003

National Research Council of Canada

Committee Service Includes:

Process Instrumentation Symposium:

Texas A&M University, College Station, Texas

API RP-500 – Subcommittee on Appendix D

ISA – Subcommittee on Instrumentation in Hazardous Locations

NFPA 497 – Subcommittee on referenced publications

Carol Ann Eccleston

Position:  Senior Chemical Engineer in Bath Process Safety Management

Bachelor of Science Chemical Engineering, Iowa State University, Ames IA
Master of Business Administration, Texas A&M University, Corpus Christi TX

Key strengths based on background in:

  • Unit operations with focus on process control and safety shutdown logic
  • Process Safety Hazard Analysis and Management of Change technical teams
  • Turnaround planning and scheduling
  • Process improvement and maintenance reliability in production units


John Williamson

Position:  Safety Instrumented Systems (SIS) Subject Matter Expert (SME)

BS Electrical Engineering, University of Texas at El Paso, TX
Registered PE State of Texas

Key strengths based on background in:

  • Process control logic and safety shutdown logic modeling and verification
  • Subject Matter Expert in the implementation of ANSI/ISA 84.00.01
  • Resource to Process Safety Hazard Analysis and MOC technical teams


Brian M. Rudacil

Position:  Mechanical Engineer in Bath Process Safety Management

Associate of Applied Science, North Harris Montgomery Community College, Houston TX
Bachelor of Science Mechanical Engineering, Texas A&M University, Corpus Christi TX

Key strengths based on background in:

  • Design HVAC system for control building to achieve adequate ventilation
  • Remediate HAC Compliance findings in the area of HVAC
  • CAD protocol for documentation of Hazardous Area Classification results


Mark R. Dailey

Position:  Senior Electrical Designer, Area Classification Specialist

Education/Certification: Fluor Engineers Advanced Training, Advanced Control System Design, Electrical/Instrument and Control

Key strengths based on background in:

  • Electrical designer support for new and existing production units
  • Preparation of drawing packages in support of major projects
  • Updates to existing designs in support of client specifications
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