New sanitary system installation requires a soils evaluation completed by a certified soils tester for sanitary systems other than holding tanks. The soils evaluation will determine the type of system to be installed. The certified soils tester will record his findings on a soil evaluation report and provide this report to the Zoning office. The plumber will design the sanitary system based on the soils evaluation and submit the sanitary permit application to the Zoning office. Plans for holding tanks, mound systems, and systems for public buildings must be approved by the Wisconsin Department of Commerce. The plumber submits these plans to the Department of Commerce for approval. It is required by Wisconsin Administrative Code that a master plumber install the sanitary system. Prior to the new sanitary system installation completion, the master plumber will contact the Douglas County Zoning office to schedule an inspection of the system during installation.
Use of an existing sanitary system for a replacement dwelling requires the completion of a sanitary inspection report by a master plumber. The sanitary inspection report must be submitted with the land use permit.