A. Prohibited Discharges: It is unlawful for any person to construct, maintain or use any SSTS regulated under this chapter that results in raw or partially treated wastewater seeping to the ground surface or flowing into any surface water. Any surface discharging system must be permitted under the National Pollution Discharge Elimination System (NPDES) Program by the MPCA.
B. Location In Floodplain: SSTS shall not be located in a floodway, and whenever possible, location in a floodplain shall be avoided. If no option exists to locate an SSTS outside of a floodplain, location within the flood fringe is allowed if the requirements in Minnesota Rules 7080.2270 and the requirements of the zoning ordinance are met.
C. Management Plans:
1. Management plans are required for all new or replacement SSTS. The management plan shall be submitted by the designer to the building official before issuance of an SSTS permit. Management plans shall include requirements as listed in Minnesota Rules 7080.0600, subparagraph 1(B), and any other requirements as determined by the building official.
2. SSTS specified in Minnesota Rules 7080.2290, 7080.2350, 7080.2400 and 7081 require an operating permit and shall include Minnesota Rules 7082.0600, subparagraph 2, and other requirements as determined by the building official. The operating permit for new SSTS and MSTS will be issued in tandem with the construction permit for the new system. Operating permits, when needed for existing systems and/or system repair, will be issued as separate permits.
3. SSTS not operated under a management permit or operating permit must have treatment tanks inspected every three (3) years. Solids must be removed when their accumulations exceed the limits described in Minnesota Rules 7080.2450.
4. Septage shall be pumped, managed, land applied and disposed of in accordance with applicable State and Federal laws.
5. With septic tank pumping, the service manhole(s) shall be brought to within one foot (1') of finished grade and secured as needed. With the pumping, maintaining or certification of a lift tank, the pump riser must be brought to grade.
D. Holding Tanks:
1. The use of holding tanks for new residential dwellings is prohibited.
2. Use of holding tank(s) may be approved by the City Council for existing structures or uses other than new residential dwellings only when:
a. Physical conditions upon the property make construction of an SSTS meeting the requirements of this chapter not possible.
b. The property does not have access to Municipal sewer as determined by the City.
c. For residential structures, the property owner shall agree that the existing structure shall not be expanded or altered by way of kitchen, bathrooms, bedrooms or other improvements in such a way as to require additional holding tank capacity.
3. When allowed, holding tanks shall be subject to the following requirements:
a. A level alarm shall be installed within the tank that includes an audible horn and strobe light visible from a public street.
b. The property owner shall maintain a contract on file with the building official for pumping the holding tank(s) with a licensed maintenance business and shall submit to the building official records of required pumping and other maintenance.
E. New Systems: All lots shall have a minimum of two (2) soil treatment and dispersal areas that can support trenches, seepage beds, mounds and at grade systems as defined by Minnesota Rules 7080.2200 through 7080.2300 or site conditions described in 7081.0270, subparagraphs 3 through 7.
F. Point Of Sale: No owner of a tract of land on which a structure that is required to have an SSTS is located shall sell or transfer to another party said tract of land unless the requirements as stated in the Wright County Point of Sale Certification Ordinance for On-Site Septic Systems are met.
G. Abandonment: SSTS must be properly abandoned in accordance with Minnesota Rules 7080.2500:
1. If the individual abandoning an SSTS is not a licensed SSTS professional, the abandonment must be inspected by a licensed SSTS inspector.
2. A State abandonment document must be submitted to the building official within ninety (90) days of abandonment. (Prior Code § 4-3-2)