Corrosion Probe, Inc. (CPI) is a specialized consulting firm designing engineering solutions for clients throughout the United States and Canada. Founded in 1984, CPI has built an international reputation for providing consulting, engineering design and technical support for equipment repairs and structural rehabilitation, corrosion control and prevention, construction management, condition assessment, and specialty nondestructive testing services to clients in the pulp and paper, chemical, pharmaceutical industries and municipal water and waste water industries. Our extensive experience and multi-disciplinary capabilities also bring solid forensic expertise in failure analysis and accident investigation. We routinely provide comprehensive inspection and quality control/quality assurance services in all the technical areas listed above and in other construction areas, including piping, pressure vessels, tanks, FRP and other plastics, protective coatings, roofing, grouting (equipment), and waterproofing. Our experienced, knowledgeable engineers and technicians successfully combine civil/structural, mechanical, metallurgical, electrical, and corrosion engineering disciplines with our extensive practical knowledge of equipment and related damage mechanisms to help our clients solve their corrosion and materials problems as practically, reliably and cost-effectively as possible.


Jason Hinely is presenting Overview of Non-Metals in Pulp & Paper Fixed Equipment Applications during the 27th session of the TAPPI 2016 PEERS Technical Program which will be held in Jacksonville, FL on September 26th.

The Water Infrastructure Conference & Exposition of the American Water Works Association will be held in Phoenix, AZ from October 30th thru November 2nd and CPI has two presentations.

  • Steve Roetter is presenting Coating Terminations on Concrete: The Devil is in the Details on November 1st.
  • Kevin Krawiec and Cristina Ponte are presenting Graphitic Corrosion of Buried Iron Water Pipe: Laboratory Examination and Service Life Prediction on November 3rd.

Doug Sherman presented Assessing the Extent of Biogenic Sulfide Corrosion in Concrete and Selecting Coatings to Prevent it: Inspection and Testing Principles at the Odors and Air Pollutants 2016 Conference of the Water Environment Federation.

Randy Nixon presented a session entitled, "Assessing The Extent of Biogenic Sulfide Corrosion and Selecting Coatings to Prevent It: Inspection and Testing Principles" at the workshop, Combating Hydrogen Sulfide Corrosion in Wastewater Systems: Infrastructure at Risk!, held at WEFTEC in September in Chicago.

Randy Nixon wrote three articles for the ASM Handbook, Vol. 5B, Protective Organic Coatings, published in 2015: "Guidance for the Use of Protective Coatings in Municipal Potable Water Systems", "Protective Coatings for Corrosion Control in Municipal Wastewater Systems", and "Guidelines for Maintenance Coating of Steel Structures in Pulp and Paper Mills".

Randy Nixon co-authored the 3rd Edition of Corrosion and Materials Fundamentals for Engineers in Wastewater Treatment Plants & Collection Systems. This book will be available from NACE.


Professional Licensure and Certifications


Kevin Schrader, Senior Engineer recently obtained his Professional Engineering licensure in the province of Manitoba, Canada.


Steve Roetter, Senior Consultant recently obtained his certification from SSPC as a Protective Coating Specialist.

Dave Bennett, Principal Consultant, Retires

After almost 12 years of assisting CPI's customers with corrosion and materials issues, in addition to many previous years in consulting and end-user roles, Dave Bennett has retired. A Technical Association of teh Pulp and Paper Industry (TAPPI)Fellow, Dave authored over 70 technical papaers (including several awarded "Best Paper") and journal articles on corrosion and materials topics; chaired and participated in numerous committees and work groups; and co-instructed the award-winning TAPPI Short Course on Solving Corrosion Problems in Pulp and Paper Mills. Dave is listed as a contributor to most Technical Information Papers (TIPs) developed by TAPPI's Corrosion and Materials Engineering Committee. Dave also authored or co-authored paper industry handbooks and guidelines, including Concrete Handbook: A Practical Guide for Protecting and Improving the Durability of Concrete in Pulp and Paper Mills (TAPPI Press); Guidelines for Maintenance Painting of Steel Structures in Pulp and Paper Mills - A Program Approach for Maximum Cost-Effectiveness (TAPPI Press); Handbook for Inspection and Repair of Brick and Tile-lined Equipment in Pulp and Paper Mills (Published by CPI); and Welding Essentials for Engineers in Pulp and Paper Mills (CPI). Additionally, Dave was a pioneer in the use of risk-and damage mechanism-based approaches to mill inspection and reliability programs, and in the application of fitness-for-service principals to the evaluation and repair of paper mill fixed equipment.

Toward the latter part of his career, Dave was able to apply his vast knowledge and experience of damage mechanisms and materials solutions to the municipal water and wastewater industries. He co-authored with CPI's Randy Nixon the recently published (by NACE International) 3rd edition of Corrosion and Materials Fundamentals for Engineers in Wastewater Treatment Plants & Collection Systems.

In the near-term, Dave will be available to handle transition issues and help maintain continuity for the customers with whom he has worked most closely. Beyond that, we wish Dave all the best in his retirement, and sincerely appreciate all that he has done to assist and educate the staff of CPI and the customers he has served.

Testing Lab - CTL


Service Areas

  • Corrosion and Materials Engineering
    • Corrosion Control/Protection Design
    • Corrosion Analysis and Material Selection Consulting
    • Failure Analysis - Mode and Root Cause Analysis
    • Cathodic Protection System Design and Evaluation
  • Structural and Mechanical Rehabilitation Services
    • Structural Design Engineering
    • Mechanical Design Engineering
    • Condition Assessment Evaluations
    • Structural Evaluation and Analysis
    • Shop and Field QC Inspection and Support
  • Mechanical Integrity and Inspection Design Services
    • Pressure Vessel and Tank Program Development and Implementation
    • Systematic Inspection Design (SID)
    • Risk-Based Inspection
    • Integrity Evaluation and Analysis
    • Fitness-for-Service Evaluations
    • Welding Consulting and Inspection
  • Coatings and Linings Engineering
    • Consulting
    • Failure Analysis
    • Project Management
    • Quality Control and Inspections
  • Project and Quality Management Services
    • Cost Estimating Services for all Construction Disciplines
    • Project Management Services, Including Planning, Scheduling, and Project Controls
    • Quality Control Inspection and Testing Services
    • Quality Assurance Program Development for New and Rehabilitation Construction
    • Quality Assurance Program Auditing and Oversight Services
  • Training Services
    • Alloy Selection for Corrosive Environments
    • Solving Corrosion and Materials Problems for Plant Engineers
    • Welding Essentials for Plant Engineers
    • Brick and Tile-Lined Equipment Inspection and Repair
    • FRP Essentials for Pulp and Paper Mills
    • Concrete Restoration and Protection
    • Quality Assurance for Capital Projects

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