(A) Standards adopted by reference. The city hereby adopts by this reference Minnesota Rules Chapters 7080 and 7081 in their entirety as now constituted and from time to time amended. This adoption does not supersede the city's right or ability to adopt local standards that are in compliance with M.S. § 115.55.
(B) List of adopted standards. All new and upgraded subsurface sewage treatment systems for individual dwelling shall be sized for Type I dwelling
(C) Determination of hydraulic loading rate and SSTS sizing. Either Table IX or Table IXa from Minnesota Rules 7080.2150, Subp. 3(E) and herein adopted by reference shall be used to determine the hydraulic loading rate and infiltration area for all SSTS permitted under this chapter.
(D) Compliance criteria for existing SSTS. SSTS built after March 31, 1996 or SSTS located in a shoreland area, wellhead protection area, or serving a food, beverage, or lodging establishment as defined under Minnesota Rules 7080.1100, Subp. 84 shall have a three (3)-foot vertical separation between the bottom soil infiltrative surface and the periodically saturated soil and/or bedrock. Existing systems that have no more than a fifteen percent (15%) reduction in this separation distance (a separation distance no less than 30.6 inches) to account for settling of sand or soil, normal variation of separation distance measurements and interpretation of limiting layer characteristics may be considered compliant under this ordinance. The vertical separation measurement shall be made outside the area of system influence but in an area of similar soil, Minnesota Rules 7080.1500, Subp. 4. All other system compliance shall be as defined in Minnesota Rules 7080.1500, Subp. 1-6.
(E) Holding tanks. Holding tanks may be used for single-family homes and other buildings with limited water use under the following conditions:
(1) The owner shall install a holding tank in accordance with Minnesota Rules 7080.2290.
(2) The owner shall maintain a valid contract with a licensed liquid waste hauler to pump and haul the holding tank to a licensed wastewater treatment facility.
(3) The holding tank shall be regularly pumped per a schedule agreed upon by the permitting entity and the licensed liquid waste hauler.
(4) The pumper shall certify each date the tank is pumped and the volume of the liquid waste removed and report to the permitting entity.
A property owner may request a variance from the standards as specified in this chapter pursuant to city policies and procedures.
(F) Variance requests. A property owner may request a variance from the standards as specified in this ordinance pursuant to city policies and procedures.
(G) Affected agency. Variances that pertain to the standards and requirements of the State of Minnesota must be approved by the affected state agency pursuant to the requirements of the state agency.
(H) Board of Adjustment. The City Council shall have the authority only to consider variances to horizontal setbacks from property lines, rights-of-way, structures, or buildings.
(Ord. 426, passed 11-18-2014)