These are systems that regularly serve 15 or more residential connections or 25 or more people per day for 60 or more days per year. They are regulated by the Washington State Department of Health (DOH). If you are interested in developing a new Group A system or replacing an existing source, contact DOH at 360-236-3030. Then, when you’re ready to request a well site inspection, fill out and submit a Well Site Inspection form to the County Permit Center, along with the applicable fees (link to specific section of fee schedule).
Learn more about the regulations for Group A Systems.