The California Groundwater Association (CGA) is a non-profit organization that has promoted protection of groundwater since 1948. Our members include water well drilling and pump contractors, suppliers and manufacturers, geologists, engineers, hydrologists, government employees and others working in the groundwater field.

We represent over 40,000 groundwater professionals working with water well owners throughout California. Beyond maintaining high standards in the groundwater industry, the CGA is devoted to providing continuing education to its members and furnishing accurate information to the public regarding the quantity, quality and availability of California’s groundwater resources.