Non destructive testing & Geotechnical engineering | Twin Ports Testing 
 
  Management

Sherry Holtketter
Office Manager
sherry.holtketter@twinportstesting.com

Mike Haapala
Geotechnical Engineering & Construction Materials Manager
mike.haapala@twinportstesting.com

Tracy Jacobs
Industrial Hygiene & Environmental Services Manager
tracy.jacobs@twinportstesting.com

Mike Olson
Non-Destructive Testing Department Manager
mike.olson@twinportstesting.com

Stephen Sundeen
Chemistry Lab Manager
stephen.sundeen@twinportstesting.com






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