Chapman Engineering Protecting assets and the environment since 1989


Protecting Assets and the Environment since 1989


Chapman Engineering is a professional environmental engineering and services company headquartered in Boerne, Texas. Originally formed in 1988 by Mr. Cal Chapman, PE (environmental engineer), Mr. Bill Hayes, a research chemist (44 patents), and Mr. Jim Velvin, a gasoline retailer and engineer (over 130 credited patents). The trio pooled their talent and expertise to launch initial operations. In 1989, they introduced the company's first benchmark process, a UST release detection system called the Chapman Engineering Fuel Finder®. Mr. Chapman and Mr. Hayes continued to develop the company until 1995 when Mr. Chapman assumed full responsibility as owner of the corporation.  Chapman Engineering began to diversify service offerings to include environmental site assessments, tank system removal, and contamination clean-up for chlorinated solvents, heavy metals, and petroleum. Chapman Engineering has provided corrosion protection services since the mid-1990s.





Cal Chapman

Mr. Cal Chapman has performed environmental, civil and corrosion engineering projects in Texas, Alaska, New Mexico, and North Dakota since 1981. Beginning in 1988-89, he co-founded EFSI dba Chapman Engineering, and started the first of three U. S. patent applications for UST leak detection.

  • Texas PE #81268

  • New Mexico PE #19169

  • North Dakota PE #8286

  • Oklahoma PE #26056

  • Model Law Engineer #35248

  • National Council of Examiners for Engineering & Surveying

  • Nace-Certified Cathodic Protection Specialist #23357







Mike Ames

Mr. Ames has worked in pipeline corrosion control and operations for 40 years, creating internal and external corrosion management programs for multiple operators over that time.  He served with Northern Natural Gas in the Liberal, Kansas area for more than 15 years, before joining a major Houston-based natural gas production, transmission and distribution company.  Mike has worked with U.S. DOT, PHMSA and many state agencies in rule making, guidance document preparation, and regulatory audit protocols since the 1990’s.

  • Current Treasurer of NAC International- Term 2017-2019

  • NACE Cathodic Protection Specialist #4343

  • NACE Senior Corrosion Technologist #4343

  • Pipeline Corrosion Integrity Manager







Eric Frechette

Mr. Eric Frechette brings more than 22 years of experience in all phases of corrosion engineering including pre-design, cathodic protection design, field testing, failure analysis, construction inspection services, and construction management.  Eric is a Certified Cathodic Protection Specialist through NACE.  He is a Licensed Professional Civil Engineer in California, and is also a Licensed Professional Engineer in the provinces of Ontario and Quebec, Canada.  He has, for the last ten years, been a NACE instructor for cathodic protection training courses.



  • Registered Professional Civil Engineer, State of California (#70527)

  • Registered Professional Engineer, Quebec, Canada (#110477)

  • NACE International certified Cathodic Protection Specialist (#7511)