Curtis and Tompkins Laboratories is an industry–leading environmental test and measurement service. We offer a comprehensive portfolio of testing services with expertise encompassing all sample matrices including ambient and source air testing, ground and drinking water, wastewater, soil, sediments, and biota.

Founded more than 130 years ago, C&T’s longevity, stability and success are attributed to competent leadership, quality employees, and a relentless focus on our customers needs. Through the quality of our service and the loyalty of our clients, Curtis and Tompkins has grown to become one of the largest environmental testing laboratories in California.

Our goal is to meet and exceed expectations for responsiveness, quality, and service. We provide routine 5–day testing services with full level 4 data packages, comprehensive data management and reporting options, and personalized project management service.