Our Staff

Name Title Credentials Years of Experience Years with DHL
Derhsing Luu President / Technical Director Ph.D. in Analytical Chemistry 33 26
John DuPont General Manager B.S. in Chemistry 39 20
Sherri Herschmann QA Manager B.S. in Chemistry & English 30 15
Ryan Wehler Systems Administrator A.S. in Computer Science 18 16
Angie O’Donnell QA/QC Specialist B.A. in Environmental Resource Management 27 10
Janice Whitt QA/QC Specialist B.S in Biology, Minor in Chemistry 18 15
Carlos Castro QA/QC Specialist / H&S Officer B.S. in Biology, Minor in Chemistry 28 19
Don Winston Senior Chemist B.S. in Chemistry 31 26
Andrew Hartford Lab Analyst B.S. in Chemistry 2 2
Billy Jenkins Lab Analyst HS Graduate 15 3
Cassie Collins Lab Analyst B.S. in Chemistry 2 2
Duston Bezner Lab Analyst B.S. in Biology 3 3
Lauren Garcia Lab Analyst B.S. in Biochemistry 3 3
Ryan Oliver Lab Analyst B.S. in Business Administration 9 4
Alex Hughes Lab Technician HS Graduate 4 4
Jade Wines Lab Technician HS Graduate 2 1
John Luu Lab Technician HS Graduate 8 8
Sydney Powers Lab Analyst B.S in Communications 10 2
Michael Payne Lab Technician College Student – Engineering 1 1
Alice Dacic Lab Analyst B.S in Biology 1 1
Eric Lau Log-In Specialist ACC – Medical Technician Training 1 1
Misty Wehler HR & Accounting B.A in Psychology 21 7
Jayne Wieland Administrative Assistant HS Graduate 21 1
Anna Loers Administrative Assistant B.S in French Linguistics 7 2