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Ordinance No. 129 64F Municipal Water and Sanitary Sewer System Page 7 of 11 full support to the lower third (1/3) of the pipe. Bell holes shall be dug to provide sample space for bells. Care must be exercised in back filling below the center line of the pipe in order to give it proper support. Back filling shall be placed in layers and solidly tamped or packed to two (2') feet above the pipe. Back filling shall not be done until the section to be back filled has been inspected by the City Engineer, his representative and the Plumbing Inspector. 7. Use Of Old House Sewers. Old house sewers or portions thereof may be approved for use by the City Engineer. The City Engineer may request that the old sewer be excavated for the purpose of facilitating inspection. 8. Existing Individual Sewage Treatment System. No house sewer shall be laid across or over any existing cesspool or septic tank unless the existing cesspool or septic tank shall first be pumped clean and filled with earth to the surrounding ground level. Where a sewer connection is laid across or over an existing cesspool or septic tank, only cast iron solid pipe, confirming to ASTM Standard Specifications shall be used for that portion of the connecting sewer. 9. The contents of the existing cesspool or septic tank shall not be discharged into the City of Gem Lake Municipal Sanitary Sewer Systemmunicipal sewer system, but must be disposed of outside the City Limits. 10. Every connecting sewer shall be connected to the Municipal Sanitary Sewer Systemmunicipal sewer system at the wye designated for the property served by the connection, except where otherwise expressly authorized by the City Engineer. All connections made at point other than the designated wye shall be made only under the direct supervision o fof the City Engineer and in such a manner as he may direct. 11. Tunneling for a distance of not more than six (6) feet is permissible in yards, courts or driveways of any building site. When pipes are driven, the drive pipe shall be at least one size larger than the pipe to be laid. 12. Independent System Required. Drainage and plumbing system of each new building and of new work installed in an existing building shall be separate from and independent of that of any other building except where provide for in Section 10.11 of this Ordinance . Every Building shall have an independent connection with the sanitary sewer system when such is available, or as approved by the City Engineer. Exception To Requirement Of Independent System. Where one building stands to the rear of another building on an interior lot, and no private sewer is available or can be constructed to the rear building through an adjoining alley, court, yard or driveway, the building drain from the front building may be extended to the rear building and the whole will be considered as one building drain. Where such a building is extended, a clean out shall be provided immediately inside the rear wall of the front building. 13. Repair Of Public Right-Of-Way. For each connection permit issued, a deposit as indicated in the City’s fee schedule as adopted from time to time, shall be paid to the City Clerk, for restoration of public right -of-way before starting of the project. This deposit will be returned upon satisfactory completion of the connection. Forfeiture of the deposit does not exonerate the permit holder from satisfactory completion of the work. 14. Costs And Expenses For Installation And Connection. eMunicipal sewer system shall be borne by the owner. The owner shall indemnify the City of Gem Lake for any loss or damage that may directly or indirectly be occasioned by the installation of the sewer connection, including the restoring of streets and street surface. Section 18. Treatment of Prohibited Wastes. Where it is determined that any waste discharged or to be discharged has certain characteristics or elements which are or may be harmful to the structures, processes, or operation of the sanitary sewer system or persons operating it, such discharge shall be discontinued or the waste shall be treated prior to its discharge into the system in a manner which will eliminate such characteristics or elements , in accordance with MN Statute, Chapter 473 and MN Rules, Chapter 7049.