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Meet Our Staff

You may contact the following staff for questions regarding your project or to obtain general information about environmental testing or laboratory services.

Marilyn RomeroMarilyn Romero

Customer Service Manager

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Email: marilyn.romero@wecklabs.com

Marilyn has been employed Weck Laboratories since 1985, mostly in the customer service and project management fields. Her duties include facilitating the interaction between clients and laboratory personnel for the successful performance of projects, identifying and setting up new projects, and helping existing and potential customers with technical issues.

Leo RaabLeo Raab

Business Development Manager

Cell: 805-760-4548
Fax: 805-435-1654
vCard: LeoRaab.vcf
Email: leo.raab@wecklabs.com

Leo has over 30 years of analytical and environmental chemistry experience, ranging from chemist to laboratory director. His focus at Weck Laboratories is to provide new customers with technical and logistical information about our broad range of analytical and customer services.

Alfredo PierriAlfredo Pierri

President/CEO

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Email: alfredo.pierri@wecklabs.com

Alfredo has over 30 years of experience in analytical chemistry.  He joined Weck Laboratories in 1987 as Lab Director

Alan ChingAlan Ching

Director of Quality Assurance

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Email: alan.ching@wecklabs.com

Alan has over 22 years of experience in environmental analysis and has a MS degree in analytical chemistry. He has been at Weck Laboratories since 1990 performing tasks in different positions, as analyst, supervisor, and Technical Director. Currently is the QA Manager for the Laboratory.

Joe ChauJoe Chau

Technical Director/Inorganic Department

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Email: joe.chau@wecklabs.com

Joe has over 20 years of experience in the analytical environmental chemistry field and has been employed at Weck Labs since 1989.  He is currently the Technical Director for the Inorganic Section, including the sub-sections of Metal Analyses, Wet chemistry, Sample preparation and Radiochemistry. He is also an expert in spectrometric analytical methods for trace metals such as ICP-MS and ICP-AES, metal speciation and low level mercury analysis.

Haivan NguyenHai-Van Nguyen

Senior Project Manager/Technical Director of Microbiology

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Email: haivan.nguyen@wecklabs.com

Hai-Van has been employed at Weck Labs since 2000, where she has gained extensive experience in Microbiology , Inorganic analyses and GC/MS including determinations for water, wastewater, soil and hazardous waste samples. She is currently in charge of the Project Management section, manages large projects and she is also the Technical Director for Microbiology.

Kim TuKim Tu

Project Manager

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Email: kim.tu@wecklabs.com

Kim has experience in metal determinations for water, wastewater, soil and hazardous waste samples. She is currently managing projects involving wastewater, potable water, and soil testing.

Brandon GeeBrandon Gee

Project Manager

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Email: brandon.gee@wecklabs.com

Brandon has several years of experience in the analytical field. He joined Weck Labs in 2006, where he has gained experience in extractions and analysis by GC & GCMS for water, wastewater, soil and hazardous waste samples. He is currently managing projects involving wastewater and potable water testing.

Valerie RejusoValerie Rejuso
Project Manager Assistant

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Email: valerie.rejuso@wecklabs.com

Valerie has been employed since 2005 assisting project managers with daily activities where she gained experience reviewing Chain of Custodies, preparing bottle orders, and managing small projects.  She is currently responsible for projects involving drinking water monitoring.

Bryan DinhBryan Dinh

IT/LIMS Manager

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Email: bryan.dinh@wecklabs.com

Bryan is responsible for the maintenance and proper operation of all information systems. Contact Bryan to obtain access to our web based laboratory data review system and for information on our wide variety of Electronic Data Deliverables (EDDs).

Accounting

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Email: accounting@wecklabs.com

Contact Accounting for questions regarding invoices.

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