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12. 30 <br /> Subd. 4 . General Provisions . <br /> A. Treatment Required. All sewage generated within <br /> the City shall be disposed of by connection to the City sewer <br /> system or shall be treated and disposed of in an on-site system <br /> according to the provisions of this Section. <br /> B. Jurisdiction. The pro visions of this Section <br /> shall apply to the method of sewage disposal from every building <br /> within the City intended for human use or habitation, whether such <br /> use is permanent, temporary or seasonal, regardless of the date of <br /> original construction or use. <br /> 1. The owners of a 11 bui ldings where City <br /> sewer is available or becomes available, s}iall connect the <br /> buildings to the City sewer within 16 montlls o� the availability of <br /> the sewer according to the provisions of the City Code. <br /> 2. At the time connection to city sewer is <br /> completed all existing septic tanks no longer in use shall be <br /> pumped out and filled with native soil . <br /> 3. The owners of those buildings which have <br /> been completely connected to City sewer shall be exempt from the <br /> maintenance and inspection provisions of this Section. <br /> C. Surface Discharge . Unless specifically <br /> permitted by MPCA and the City of Orono, sewage, sewage tank <br /> effluent, or seepage from a soil treatment system shall not be <br /> discharged to the ground surface, abandoned wells , or bodies of <br /> surface water, or into any rock or soil formation the structure of <br /> which is not conducive to puriiication of water by filtration, or <br /> into any well or other excavation in the ground. <br /> All new or existing systems which discharge to surface waters or <br /> the ground surface must obtain either a National Pollutant <br /> Discharge Elimina�ion System (NPDES ) or State Disposal Sys�em <br /> Permit from MPCA and shall comply with all federal, state, and City <br /> requirements pertaining thereto. <br /> D. Standard System Required. In areas not served <br /> by City sewer systems, sufficient open land of suitable soil <br /> characteristics shall be provided for each new or existing building <br /> to allow for the design, construction and use of a "standard" on- <br /> site system within the property or on which such building is <br /> located. Standard systems are the only new systems permitted by <br /> this Section without a variance thereto. <br /> l. "Alternative systems " shall not be <br /> permitted except by variance. <br /> Z • "Prohibited Systems " shall not be <br /> insta 1 led or used except as permitted elsewhere in this code. <br /> ORONO CC 493 � 2-1a-92 � <br />