Twin Ports Testing
Testing Services
Management
Jim Johnson, PE Joe Berger, ICCBrett Carlson, PEKaty Jahr
President/Geotechnical Engineer
bcarlson@twinportstesting.com
Geotechnical Team Lead/Vice President
jjohnson@twinportstesting.com
Construction Materials Testing Team Lead/Vice President
jberger@twinportstesting.com
Chemistry Laboratory Department Manager
kjahr@twinportstesting.com
Brandon Carl, ASNT Level II
Nondestructive Testing Department Manager
bcarl@twinportstesting.com
Tracy Jacobs, CHMM
Industrial Hygiene Department Manager
tjacobs@twinportstesting.com