Control Laboratory, located in the heartland of California agricultural community, has 7 decades of experience in analyzing & solving a wide spectrum of complex soil, soil-related, compost, & water-borne or effluent problems. Equipped with the finest state-of-the-art instrumentation & lab facilities, we provide analytical services across the nation. Control Laboratory, & its partner companies keep abreast of new methods, & obtain the latest instrumentation. Including the most precise results possible in line with accepted industry procedures compliant with the official directives & applicable protocols of the EPA, U.S. Composting Council, Department of Health Services, USDA, AOAC, American Society of Agronomy & the Soil Sciences of America