51-81 New Chpt 913 - Streets - Muni & private sewers & drains

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(d) A separate and independent building sewer shall be provided for ever7 building; except under exceptional circumstances the Building Co.~.~issioner may waive the provisions of this secitom. (e) Old building sewers may be used in connection with new buildings only when ~hey are found, on examination and test to meet all require- ments of City codes and ordinances. (f) The alignment and materials of construction of building sewer, and the methods to be used in excavating', placing of the pipe jointing, test i~ ~ ~Gkfilling the trench, shall all conform to the require- m~nts of the building and plumbing code or other applicable rules amd regulations of the City of Lakewood. (g) The size and slope of the building sewer shall be subject to the approval of the City Engineer but in no event shall the diameter be less than four (4) inches. The slope of such 4-inch pipe shall not be less than one-fourtk (1/4) inch per foot. It shall be required that the service stub or wye connection and the building drain shall be un- covered and the differential elevation be determined before construction is begun. Where practicable, the building connection shall be laid on a uniform grade between those two points. (h) %rnenever possible the building sewer shall be brought to the building at an elevation below the basement floor. No building sewer shall be laid parallel to and within three (3) feet of any bearing wall, which might thereby be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid at uniform grade and in straight alignment insofar as possible. Changes in direction shall be made only with properly curved pipe and fittings. (i) In all buildings in which any building drain is too low to permit gravity flow to the municipal sewer, wastewater carried by such drain shall be lifted by approved artificial means and discharged to the building sewer. (j) ~:o person shall make connection of roof downspouts, exterior founda- tion drains, areaway drains, or other sources of surface rUnoff or ground- water to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer. (k) All building sewer connections must be made to the wye or riser provided for that purpose. If wye or riser is not available, connection shall be made suitable to the City Engineer. (1) The applicant for the building sewer permi~ shall notify the Building Cor~nlssioner when =he building sewer is. ready for inspection and connec- tion To the municipal sewer. The connection shall be made under the supervision of the Director of Public Works or his representative. (m) All excavations for building sewer installations shall be adequately guarded with barricades and lights so as to ~protect the public from hazard. Streets, sidewalks, parkways and other public property dis- turbed in the course of the work shall be restored in a manner satis- factory To ~he municipality by the person making the installation. SECTION 913.96: USE OF THE }~NICIPAL SEI.~RS. (a) No person shall discharge or cause to be discharged any storm water, surface wa~er, groundwater, roof runoff, subsurface drainage, uncon- taminated cooling water, or unpolluted industrial process waters to any sanitary sewer. (b) Storm_ water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers, or to a na=ural outlet approved by =he City Engineer. Industrial cooling water or unpolluted process waters shall be discharged, on approval of the City Engineer to a storm sewer or natural outlet. (c) ~:o surface wa~er or ground water drainage system shall be connected to any public sewers without prior approval of the City Engineer. Such approval shall require the submittal of drawings to define the piping plans, critical elevations, surface contours, where applicable, and details of piping and drainage appurtenances. -6-