Our Staff

Name Title Credentials Years of Experience Years with DHL
Derhsing Luu President / Technical Director PhD in Analytical Chemistry 33 26
John DuPont General Manager BS in Chemistry 39 20
Sherri Herschmann QA Manager BS in Chemistry & English 30 15
Ryan Wehler Systems Administrator AS in Computer Science 18 16
Angie O’Donnell QA/QC Specialist BA in Environmental Resource Management 27 10
Janice Whitt QA/QC Specialist BS in Biology, Minor in Chemistry 18 15
Carlos Castro QA/QC Specialist / H&S Officer BS in Biology, Minor in Chemistry 28 19
Don Winston Senior Chemist BS in Chemistry 31 26
Billy Jenkins Lab Analyst HS Graduate 15 3
Cassie Collins Lab Analyst BS in Chemistry 2 2
Lauren Garcia Lab Analyst BS in Biochemistry 3 3
Ryan Oliver Lab Analyst BS 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 BS in Communications 10 2
Alice Dacic Lab Analyst BS in Biology 1 1
Justin Ramey Lab Analyst BS in Biochemistry 1 0
Eric Lau Log-In Specialist ACC – Medical Technician Training 1 1
Misty Wehler HR & Accounting BA in Psychology 21 7
Jayne Wieland Administrative Assistant HS Graduate 21 1