Loading...
HomeMy WebLinkAbout3745Ordinance No. 3745 (Amending or Repealing Ordinances) CFN=162-Sewer Service - Side Sewer Code - 2005 Edition Passed - 4/19/2005 Adopt 2005 Edition of the Side Sewer Code Amending Ord. 1786 Ord. 3927 Repeals Ch. 7.08 ORDINANCE NO. �7yS AN ORDINANCE of the City Council of the City of Kent, Washington, amending Chapter 7.08 of the Kent City Code, entitled "Side Sewer Code." RECITALS A. The City originally adopted its Side Sewer Code in 1972. This code was adopted by reference into the Kent City Code and placed on file in the City Clerk's Office. B. The current 1972 edition of the Side Sewer Code is no longer current as Is and construction practices have changed over time. In order to amend the Side Sewer Code, however, Council approval is needed to revise the Kent City Code ision to reference the updated 2005 edition in place of the outdated 1972 edition. copy of the 2005 edition of the Side Sewer Code is attached and incorporated as hibit A. C. As a result, the City's Public Works Department would like to amend 1972 Side Sewer Code in order to align it with current standards and practices. NOW THEREFORE, THE CITY COUNCIL OF THE CITY OF KENT, ASHINGTON, DOES HEREBY ORDAIN AS FOLLOWS: 1 Adopt 2005 Edition of the Side Sewer Code ORDINANCE SECTION 1. —Amendment Chapter 7.08 of the Kent City Code, entitled "Side Sewer Code," is amended as follows: Chapter 7.08 SIDE SEWER CODE See. 7.08.010. Adopted. The City adopts, upon the effective date of this ordinance,rze is adopted .pen the filing of that ,.o..t." weed kn .,% ,.s o its Kef4 Side Sewer Code, 20052 Edition, which shall remain is -on file in the city clerk's office. SECTION 2. — Severability If any one or more section, subsections, or sentences of this ordinance are held to be unconstitutional or invalid, such decision shall not affect the validity of the remaining portion of this ordinance and the same shall remain in full force and effect. SECTION 3. — Effective Date. This ordinance shall take effect and be in force (30) days from and after its passage a I by law. MAYOR P9D TEM TTEST: JACOBER, ITY CLERK - 2 Adopt 2005 Edition of the Side Sewer Code APPROVED AS TO FORM: TOM BRUBAKER, CITY ATTORNEY PASSED: /% day of April, 2005. APPROVED: l `% day of April, 2005. 2�-4 day of April, 2005. I hereby certify that this is a true copy of Ordinance No. 37'V5 by the City Council of the City of Kent, Washington, and approved by the of the City of Kent as hereon indicated. C.dbMXq CDS.d.&wuC &tlm (SEAL) RENDA JACOBER, &hY CLERK 3 Adopt 2005 Edition of the Side Sewer Code EXHIBIT A CITY OF KENT SIDE SEWER CODE 2005 EDITION CITY OF KENT SIDE SEWER CODE SECTION 100 - Side Sewer Shall be Installed in Accordance with the Following Specifications: A. MATERIALS. L Pipe: Approved pipe materials shall be PVC (Polyvinyl Chloride), SDR 35, conforming to ASTM 3034 or 3035 specifications or ductile iron pipe, Class 50. Pipe material other than these shall not be used, unless otherwise authorized by the public works director, or his or her designee. 2 Joints: All sanitary sewer pipe shall have flexible gasketed joints unless otherwise specified by the public works director, or his or her designee. "Flexible gasketing" shall be construed to include rubber, synthetic rubberlike and plastic materials specially manufactured for the joint, pipe size, and use intended and shall be furnished by the manufacturer of the pipe to be used 3. Fittings: Tees, wyes, bends, couplers, adapters, hubs, and transition section shall conform to the above Sections A and B. All fittings shall be factory -produced and shall be designed for installation on the pipe to be used. Fittings shall be of the same quality and material as the pipe used. 4 Manholes: Manholes shall conform to City of Kent Construction Standards, Section 4: Standards for Sanitary Sewer Systems, subsection 4.7: Sanitary Sewer System Materials, subsection 4.7.4: Manholes and Covers. B. CONSTRUCTION DETAILS. Excavation and Backfill: a. Excavation: In all cases trenches must be of sufficient width to permit proper jointing of the pipe and backfilling of materials along the side of the pipe. Trench width at the surface of the ground shall be kept to a minimum amount necessary to install the pipe in a safe manner. 1r7 All material excavated from trenches and piled adjacent to the trench or in a roadway or public thoroughfare shall be piled and maintained so that the toe of the slope of the material is at least two (2) feet from the edge of the trench. It shall be piled in such manner as will cause minimum of inconvenience to public travel, and provisions shall be made for merging traffic where such is necessary. Free access shall be provided to all fire hydrants, water valves and meters, and clearance shall be left to enable free flow of storm water in all gutters, other conduits, and natural water courses. All material taken from excavation in the public right-of-way shall be immediately removed from the site and disposed of in a manner acceptable to the public works director, or his or her designee unless it is approved for backfill by the public works director, or his or her designee. All excavations required for the installation of a building sewer shall be open trench work, unless otherwise approved by the public works director, or his or her designee. No backfill shall be placed until the work has been inspected by the public works director, or his or her designee. b. Dewatering: Pipe trenches shall be kept fine from water during pipe laying and jointing by such method as the contractor may elect, providing the method is acceptable to the public works director, or his or her designee. The contractor shall be responsible for damages of any nature resulting from the dewatering operation. C. Foundations and Bedding: Proper preparation of foundations, placement of foundation material where required, and placement of bedding material shall precede the installation of all sewer pipe. This shall include necessary leveling of the native trench bottom prior to placement of foundation material as well as placement and compaction of required bedding material to a uniform grade so that the entire length of pipe will rest firmly on a well compacted material, so the backfill material around the pipe will be placed in a manner to meet requirement specified hereinafter. d. Bedding: All sewer pipe shall be bedded in 5/8 inch minus crushed gravel or other previously approved material except where specifically excluded by the public works director, or his or her designee in the field. 3 Minimum thickness of the bedding under any portion of pipe shall be six (6) inches. The sewer pipe shall be completely enclosed within the bedding material and minimum cover over the pipe shall be six (6) inches. e. Cribbing and Sheeting: The contractor shall provide all cribbing and sheeting needed to protect the work, existing property, utilities, pavement, etc. and to provide safe working conditions in the trench. Such cribbing and sheeting shall comply with all applicable Federal, State, and local safety codes. Removal of any cribbing and sheeting from the trench shall be in such a manner as to prevent damage to the installation and surrounding property. Damages resulting from improper cribbing or failure to crib shall be the sole responsibility of the contractor. f. Pipe Laying and Jointing: Laying of sewer pipe shall be accomplished to line and grade in the trench only after it has been dewatered and the foundation and/or bedding has been prepared. Mud, silt, and gravel and other foreign materials shall be kept out of the pipe and off the jointing surfaces. All pipe laid shall be retained in position so as to maintain alignment and joint closure until sufficient backfill has been completed to adequately hold the pipe in place. The sewer pipe, unless otherwise approved by the public works director, or his or her designee, shall be laid up grade from the point of connection on the existing sewer or from a designated starting point. The sewer pipe shall be installed with the bell forward or upgrade unless otherwise approved. When pipe laying is not in progress the forward end of the pipe shall be kept tightly closed with an approved temporary plug. The following are minimum grades for each pipe diameters: 41 2.0% 61 1.0% S' 0.4% 10" 0.25% 12" 0.20% 15" 0.15% IT, 0.125% 4 Four (4) and six (6) inch pipe shall be laid in a straight line at a uniform grade between filling or on a uniform or vertical curvature achieved by deflecting the pipe joints within the limits recommended by the manufacturer of the pipe being used. The maximum deflection for four (4) and six (6) inch pipe permissible at any one fitting shall not exceed 45 degrees (45°) (one- eighth (1/8) bend) unless straight pipe of not less than two and one half (2-1/2) feet in length be installed between adjacent fittings, or unless one such fitting be a wye branch with a clean-out provided on the straight leg. Changes in grade or alignment for eight (8) inch pipe or larger shall be by the use of an approved manhole. Side sewers shall be connected to the tee, wye, or stub provided in the public sewer where such is available utilizing approved fittings or adapters. Where no tee, wye, or stub is provided or available, connection shall be made by machine made tap and a suitable saddle or approved manhole installed over the public sewer. All side sewers will be inspected by the public works director, or his or her designee, All side sewers shall be tested full length in compliance with the City standard air or hydrostatic test and in the presence of the public works director, or his or her designee and shall meet or exceed acceptable City of Kent Standards before acceptance. Pipe and Connection Side Sewers shall not be less than six (6) inches in diameter except single family residence shall be not less than four (4) inches minimum diameter from property line to building. Sewers located in the vicinity of public water supply wells or other sources or structures shall be constructed in conformance with regulations governing public water supplies. Sanitary sewers and domestic water lines shall not be laid in the same trench. Parallel water and sewer lines wherever possible shall be laid at least 10 feet apart horizontally. Wherever it is necessary for sewer and water lines to cross each other, the crossing should be at an angle of approximately 90° and the top of the sewer pipe shall be located at least eighteen (18) inches below the bottom of the water line or 5 be constructed with a minimum of Class 50 ductile iron pipe with water tight joints, or equal construction, as approval by the public works director, or his or her designee. The ductile iron pipe shall be one continuous nominal eighteen (18) foot pipe placed symmetrically across the water line. Side sewers, where possible, shall not be less than thirty inches (30") from any building, have four feet six inches (4'6") cover at the curb line, three feet six inches (3'6") cover at the property line, and two feet (21) of cover on private property. Joints shall be tight and waterproof. Any part of the building sewer that is located within 10 feet of a water service pipe shall be constructed of Class 50 ductile iron pipe with approved joints. If installed in filled or unstable ground, the building sewer shall be of Class 50 ductile iron pipe, except that non-metallic material may be accepted if laid on a suitable concrete bed or cradle as approved by the public works director, or his or her designee. Not less than one clean-out shall be provided for each side sewer six (6) inches or smaller and/or each total change of 90 degrees (900) of grade or alignment, except that no clean-out will be required at the connection of the side sewer to a riser on the public sewer. A suitably located clean-out in the house piping or plumbing may be considered as a clean-out for the side sews. Clean -outs for six inch or smaller pipe shall be placed at intervals of not more than 100 feet in a straight run. Clean -outs in the line shall utilize a wye branch at the side sewer. Maximum distance between manholes on eight (8) inch or larger sewers shall not exceed 400 feet. In the event that conditions render the enforcement of the above provisions impractical, the public works director, or his or her designee may issue a special permit for the installation of a side sewer requiring compliance with the above conditions only as far as practical, but such special permit shall be issued only upon the condition that the permittee will save the City harmless from any damage by reason of such installation. 6 Each legally defined property or building shall be serviced by a separate side sewer stub connected to the City main unless otherwise approved by the public works director. Old building sewers may be used in connection with new building only when they are found, on examination and test by the public works director, or his or her designee, to meet all requirements of this code. In buildings in which any building drain is too low to permit gravity flow to the public sewer the sanitary sewage carried by such drain shall be lifted by approved artificial means and discharged to the building sewer. g. Backfilling: As the pipe is installed it shall be backfilled by hand with proper bedding material and selected native material up to an elevation six (6) inches above the crown, taking care that the backfill is in contact with the entire periphery of the pipe. The backfill shall be so carefully placed that subsequent backfilling operations will not disturb the pipe in any way. Temporary cribbing, sheeting, or other timbering shall be removed unless specific permission is given by the Superintendent to leave it in place. In backfilling the pipe, the contractor shall take all necessary precautions to protect the pipe from any damage or shifting of the pipe. In general, backfilling shall be performed by pushing the material from the end of the trench into, along, and directly over the pipe so that the material will be applied in a form of a rolling slop rather than by side filling which might damage the pipe. Pipe placed below the water table shall be kept from floating by placing backfill material upon it, or by controlling the water level at the bottom of the trench. During all phases of the backfilling operations and testing as outlined herein, the contractor shall protect the sewer installation, provide for the maintenance of traffic as may be necessary, and provide for the safety of property and persons. h h. Compaction of Trench Backfill: Where compaction of trench backfill is required as in public rights-of-way either water settling or mechanical temping shall be used. Method shall be determined by the public works director, or his or her designee. Wherever a trench is excavated in a paved roadway, sidewalk, or other area where minor settlement would be detrimental, the trench shall be backfilled with sand or bank run gravel to such a depth as the public works director, or his or her designee may direct. Such material shall be approved by the public works director, or his or her designee. SECTION 200 - Call for Inspection. Notice of Defects: Any person performing work under permit pursuant to the provisions of this code shall notify the public works director, or his or her designee when the connection to the public sewer is made and when the building sewer is ready for inspection and shall specify in such notice the location of the premises. The connection shall be under the supervision of the public works director, or his or her designee. All excavation for building sewer installation shall be adequately guarded with barricades and light so as to protect the public from hazard. Streets, sidewalks, parkways, and other public property disturbed in the course of work shall be restored in a manner satisfactory to the City. Restoration and clean up shall be completed to the satisfaction of the public works director, or his or her designee before final acceptance is granted. Any pipe or appurtenance which inadvertently or otherwise has been laid or jointed not in accordance with this section shall, upon direction of the public works director, or his or her designee at any time before final acceptance or before expiration of the guaranty period, be repaired or be removed and replaced to the satisfaction of the public works director, or his or her designee within five (5) days. If the inspector finds the work or material used is not in accordance with the provisions of this code, he shall notify the person doing the work and also the owner of the premises by posting a written notice upon the premises, and such posted notice shall be ail the notice that is required to be given of the defects in the work or material found in such inspection, and a copy of such notice shall be kept on file in the office of the public works director, or his or her designee. SECTION 300 - his Ngon Before Trenches are Filled: No trench shall be filled or any connecting sewer covered, until the work from the point where the same connects with the public sewer or other outlet to the point where it connects with the iron pipe or other plumbing of the building or premises to be connected, shall have been inspected and approved by or under the direction of the public works director, or his or her designee, and until the same shall have been made in all respects to conform to the provisions of this code with the exception of testing which 8 will be accomplished after backfill has been placed to a suitable depth. SECTION 400 - Excavation in Streets to be Guarded: All excavations made by any licensed contractor within the limits of any street, alley, avenue or other public place shall be protected and guarded by fencing or covering by said contractor both by night and by day, by the display of proper signals and lights, and the contractor shall be liable for all accidents caused by negligence in this respect. SECTION 500 - Delayed Work: City May Restore Streets: All work within the limits of any street or public place must be prosecuted to completion with due diligence, and if any excavation is left open beyond a reasonable time, the public works director, or his or her designee shall cause the same to be refilled and the street restored forthwith, and any cost incurred in such work shall be charged to the contractor in charge of such work, and must be paid before he shall receive any future permit from the public works director, or his or her designee. SECTION 600 - Improper Work: City Map Complete. Assess Cost: If any work done in pursuance of a permit is not constructed and completed in accordance with the provisions of this code and the plans and specifications as approved by the public works director, or his or her designee and if the contractor or person doing the work shall refine to properly construct and complete such work, notice of such failure or refusal shall be given to the owner of the property, for whom said work is being done, as herein provided, and the public works director, or his or her designee shall cause said work to be completed and said sewer connected in the proper manner, and the full cost of such work and any materials necessary therefore shall be changed and become a lien against said property, and shall be collected in the manner provided by ordinance. SECTION 700- Permits: Applications: Plans and Specifications: In order to obtain the permit provided for by ordinance, the licensed contractor or his agent or property owner shall file an application therefore with the Public Works Engineering Department stating the name of the owner or occupant of the premises to be cormected, giving lot, block and addition, or other legal description, the number of buildings on said premises, and the purposes for which they are, or are to be, used, together with plans and specifications showing the whole course of the side sewer from the public sewer or other outlet to its connection with the building or premises and all branches, connected therewith, which plans and specifications shall be submitted to the public works director, or his or her designee for approval. The public works director, or his or her designee may change or modify the same and designate the manner in which such connecting sewers shall be connected with the building, the place where such connections with the public sewer shall be made, and specify the material, size and grade of such connecting sewer, and shall endorse his approval on such plans and specifications as 9 heretofore provided, the public works director, or his or her designee shall issue a permit as provided by ordinance and it shall be unlawful for any person to alter the approved plans and specifications or to do any work other than as provided for in the permit, or to repair, extend, remove of connect to any private sewer, without first obtaining a permit as provided in this ordinance. The public works director, or his or her designee shall prepare and keep on file in his office all cards and records of buildings connected to sewers, showing the size of the lot, location of the building or buildings, and the whole course of the side sewer from the public sewer or other outlet to its connection within the building or premises and all branches connected therewith. SECTION 800 - Side Sewer Construction Must Comply with Code: When any side sewer is constructed, laid, connected, or repaired, and does not comply with the provisions of this code, or where it is determined by any Health Officer of the public works director, or his or her designee that a side sewer is obstructed, broken or inadequate and is a menace to health, or is liable to cause damage to public or private property, the public works director, or his or her designee shall give notice to the owner, agent, or occupant of the property in which such condition exists, of such condition, and if he shall refuse to construct, relay, reconstruct, or remove the obstruction of said side sewer, within the time specified in such notice, the public works director, or his or her designee may perform or cause to be performed such work as may be necessary to comply with this ordinance, and the cost of such work as done by the public works director, or his or her designee shall be assessed against such property, or collected from the person responsible for such condition, and the amount thereof shall become a lien upon the said property, and the City Attorney is hereby authorized, empowered and directed to collect such cost, either by the foreclosure of said lien or by a suit against the owner or occupant of such property, or other person responsible for such condition, which suit shall be maintained in the name of the City of Kent, as plaintiff, in any court of competent jurisdiction. Ito]