A. Required: Any premises used for human occupancy must be provided with an adequate method of sewage treatment, as follows:
1. Public System: Publicly-owned sewer systems must be used where available.
2. Private System: All private sewage treatment systems must meet or exceed the Minnesota Pollution Control Agency's standards for individual sewage treatment systems contained in the document titled, "Individual Sewage Treatment Systems Standards", chapter 7080, a copy of which is hereby adopted by reference and declared to be a part of this Title.
3. On-Site System: On-site sewage treatment systems must be set back from the ordinary high water level in accordance with the setbacks contained in subsection 8-3G-4A of this Article.
4. Evaluation Of Site For Individual System: All proposed sites for individual sewage treatment systems shall be evaluated in accordance with the criteria in subsections B1 through B4 of this Section. If the determination of a site's suitability cannot be made with publicly available, existing information, it shall then be the responsibility of the applicant to provide sufficient soil borings and percolation tests from on-site field investigations.
B. Evaluation Criteria:
1. Depth to the highest known or calculated ground water table or bedrock;
2. Soil conditions, properties, and permeability;
3. Slope;
4. The existence of lowlands, local surface depressions, and rock outcrops;
5. Nonconforming sewage treatment systems shall be regulated and upgraded in accordance with Section 8-1-10 of this Title. (Amd. Ord., 5-25-1993)