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Municode Page ll of 12 b. Maintenance pumping. No sewage tank shall remain in service without being pumped at least once every three years, whether or not measurement indicates a sludge buildup. Each existing septic tank shall be pumped at least once within 36 months of the effective date of the ordinance from which this article is derived and thereafter at least once within 36 months of each succeeding pumping. In order to be considered a maintenance pumpout, the manhole or cover section (20-inch diameter minimum) must be removed to allow the complete extraction of the solid materials within the sewage tank. The contractor must also determine whether the tanks are watertight and report this information on the pumpout notification. Failure to adhere to these requirements will result in the city's rejection of the pumpout notification as a bona fide maintenance pumpout. �� System failure. A noncompliant ISTS discharging pollutants shall have the sewage tanks regularly pumped to limit or eliminate effluent discharge until satisfactory repairs have been completed. d• Holding tanks. Holding tanks shall be pumped on a regular basis and in all cases shall be pumped before overflowing occurs. All new holding tank installations will require review by the onsite septic manager. Holding tanks shall be provided with a sight and sound alarm to warn of possible overflow. �2) Contractorrequired. All sewage and holding tank pumpings, shall be performed by licensed contractors. �3) Off-site disposal required. All septage removed from sewage tanks or holding tanks shall be removed from the site in sealed containers and shall be disposed of in a sanitary location and manner according to the requirements of the Metropolitan Council. �4) Registration required. Each pumping of every sewage tank and holding tank shall be registered with the city on forms provided for that purpose, within 30 days of the pumping. The contractor shall certify to the city the owners of the property, property address, date of pumping, gallons removed and location of sanitary disposal. Failure to register any pumping with the city may result in the city inspection report's classifying the ISTS as noncompliant. (Code 1984, § 12.30(6); Ord. No. 100 2nd senes, §4, 2-10-1992; Ord. No. 147 2nd series, §§ 16, 17, 5-13-1996; Ord. No. 199 2nd se�es, § 1(12.30(6)), 5-8-2000; Ord. No. 38 3rd senes, § 1, 9-24-2007) Sec. 58-52. Special provisions for Lake Minnetonka Islands. All lots, properties, buildings and structures on Big Island, Mahpiyata Island and Deering Island, Lake Minnetonka, shall be provided with ISTS's which comply with the requirements of this article, as amended by the following special provisions and specific exceptions pertaining to island properties: (1) Systems not required. Vacant property or property used solely for one-family seasonal recreational use of land without structures, or with accessory structures only, as permitted in the RS zoning district, need not be provided with an ISTS, provided that, at any time such property is actually in use by one or more persons for overnight or longer stays, an approved marine toilet or portable holding tank toilet shall be available on the property or within a watercraft docked or moored at the property. �2) ISTS required. Each building or structure within the RS zoning district must be connected to an ISTS according to the provisions of this article as follows: https://I ibrary.municode.com/print.aspx?h=&clientID=13094&HTMRequest=https%3 a%2f%2flibrary.municode.com%2fNT... 6/24/2014