We are located in the heart of the California agricultural community and provide services to clients across the nation. We have accumulated six decades of experience in analyzing and solving a wide spectrum of complex problems involving soil, leaf tissue, compost, drinking water, surface water, and wastewater. Additionally, we have developed testing programs for new fields such as biodegradable and compostable products, biofuels, and biochars. Soil Control Laboratory, located in Watsonville, CA, is a division of Control Labs.