Mr. Johnson has more than fifteen years of experience with Firestone Specialty Products Company’s geomembranes and geomembrane applications. Mr. Johnson instructs geomembrane installers in the installation techniques for use with Firestone EPDM and thermoplastic geomembrane . He works with decorative and golf course water feature engineers, designers and installers. Mr. Johnson is a member of the Geosynthetics committee of the American Society for Testing Materials. Mr. Johnson is a Certified Golf Course Superintendent with
