Expert Chemical Analysis, Inc. Roselle Street, San Diego, San Diego County, California, United States Member since August 1, 2024
Harrens Lab Inc. Breakwater Avenue, Hayward, Alameda County, California, United States Member since July 24, 2024
Prime Analytical Laboratories, LLC Nelson Avenue, Concord, Contra Costa County, California, United States Member since April 27, 2025
IRIS ENVIRONMENTAL LABORATORIES LLC US Highway 22 And 3, Union, Union County, New Jersey, United States Member since February 12, 2025
Environmental Processes Aqua Solutions Inc. Chicago, Cook County, Illinois, United States Member since June 3, 2025
Advanced Terra Testing Parfet Street, Lakewood, Jefferson County, Colorado, United States Member since May 27, 2024