Meet Our Staff

Agustin Pierri

Agustin Pierri, Ph.D.

Laboratory Technical Director

Dr. Agustin Pierri obtained his BS in Chemistry from the University of Southern California and his Ph.D. in Chemistry from the University of California Santa Barbara. He has been an analyst in different sections of the laboratory and since 2007 has worked in the LC-MS/MS department developing all analytical methods by that technique. Prior to becoming Technical Director in July of 2016, he has been working as Methods Development Manager for all departments of the Laboratory.


Alan Ching

Alan Ching

Vice President/Director of Quality Assurance

Alan has experience in environmental analysis since 1990 when he joined Weck Laboratories and has a MS degree in analytical chemistry. He has been at Weck Laboratories performing tasks in a variety of roles: as an analyst, a supervisor, and as Technical Director. He is currently the QA Director for the Laboratory.


Joe Chau

Joe Chau

Vice President/General Manager

Joe has experience in the analytical environmental chemistry field since 1989. He has held many positions at Weck Laboratories: as an analyst, a supervisor, as a Technical Director, and is now the General Manager of Weck Laboratories. 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 and in the field of radiochemistry. He holds BS degrees in both Engineering and Chemistry and an MBA from the Claremont Colleges.


Kim S. Banks

Kim Banks

Director of Business Development

Cell: 626-764-8550

Kim has been working within the environmental laboratory business since 1983, holding various positions ranging from microbiologist to laboratory director. Her focus at Weck Laboratories is to provide new and current customers with technical and logistical information about our broad range of analytical and customer services.


Eydie H. Schwartz

Eydie Schwartz

Senior Business Development Manager

Cell: 626-641-4882

Eydie has widespread experience within the environmental laboratory testing industry, including business development, analytical chemistry, microbiology, and project management. She has a broad understanding of various environmental regulations that allow her to assist clients to ensure that the testing and reporting requirements of their testing programs are met. Her responsibilities include direct interface with clients to demonstrate the technical capabilities of the laboratory and provide review of technical documents to properly prepare quotes and proposals that encompass all aspects of the client's needs. Eydie holds a B.A in Microbiology and a Chemistry Minor as well as graduate studies in Microbiology


Marilyn Romero

Marilyn Romero

Customer Service Manager

Cell: 626-926-4105

Marilyn has been employed at Weck Labs since 1985 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. She is also the head of the Project Management at the Laboratory.


Kim Tu

Kim Tu

Senior Project Manager

Kim joined Weck Labs in 2007 and has gained experience in metal determinations for water and soil/solid samples as laboratory analyst and then as project manager. She is currently managing projects involving wastewater, potable water, and soil testing.


Valerie Ayo

Valerie Ayo

Senior Project Manager

Valerie has been employed at Weck Labs 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 a Project Manager responsible primarily for projects involving drinking water monitoring.


Rahul R. Nair

Rahul Nair

Project Manager

Rahul's passion for customer service along with his technical and regulatory knowledge make him a great fit as a Project Manager. His background includes years of experience in the environmental laboratory holding various positions including Project Management, Business Development, Quality Assurance, and Sample Management. He holds a B.S. in Biology from the University of California in Riverside, CA.


Carlos Navarro

Carlos Navarro

Field Sampling Coordinator

Mr. Navarro has worked with Weck Laboratories in 1991 for 14 years then returned in 2016. Through the years, he has been working in field services where he has met many of our customers face to face, assisted in sampling activities, field monitoring and analyses. He also assists Project Managers in preparing reports for wastewater clients. He coordinates field sampling activities with our water utilities and industrial wastewater clients.

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