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HomeMy WebLinkAbout1786Ordinance No. 1786 (Amending or Repealing Ordinances) CFN=162 — Side Sewer Code — 1972 Edition Passed — 8/21/1972 Adopting Side Sewer Code -1972 Edition and Repealing Sec 10 of Ord. 874 Amended by Ord. 3745 Ord. 3927 Repeals Ch. 7.08 t) 7k67 ORDINANCE NO. AN ORDINANCE of the City of Kent, Wash- ington, adopting by reference that Code known as Kent Side Sewer Code -1972 Edition"; and repealing Section 10 of Ordinance 874. THE CITY COUNCIL OF THE CITY OF KENT, WASHINGTON, DO ORDAIN AS FOLLOWS: Section 1. There is adopted upon the effective date of this Ordinance and upon the filing of copies of the following de- scribed code in the office of the Kent City Clerk, that certain code known as the Kent Side Sewer Code -1972 Edition. Section 2. Section 10 of Ordinance 874 be and the same hereby is repealed. Section 3. This Ordinance shall take effect and be in force five (5) days from and after its passage, approval and pub- lication as provided by law. ATTEST: ISABEL HOGAN,IMAY MARIE JENS City Clerk A PROVED AS TO FORM: - E k"_ DONALD E. MIRK, City Attorney I PASSED the day of August, 1972. APPROVED the day of August, 1972. PUBLISHED the day of August, 1972. I hereby certify that this is a true copy of Ordinance No. $ passed by the City Council of the City of Kent, Washington, and approved by the Mayor of the City of Kent as here- on indicated. (SEAL) MARIE JENSEN(, ity Clerk '49" L 1 TFL CITY OF KENT SIDE SEWER CODE 1972 EDITION •7�- CITY OF KENT SIDE SEWER CODE SECTION 100 Side Sewer Shall be Installed in Accordance with the Following Specifications: A. Materials. 1. Pipe: Approved pipe materials shall be cast iron, con- crete, vitrified clay or asbestos -cement. Pipe material other than these shall not be used, unless otherwise authorized by the Superintendent. 2. Joints: All sanitary sewer pipe shall have flexible gasketed joints unless otherwise specified by the Superintendent. "Flexible gasketing" shall be construed to include rubber, synthetic rubberlike and plastic materials spe- cially manufactured for the joint, pipe size, and use in- tended and shall be furnished by the manufacturer of the pipe to be used. 3. Fittings: Toes, wyes, bends, couplers, adapters, hubs, and transition section shall conform to the above Sec- tions A and B. All fittings shall be factory -produced and shall be designed for installation on the pipe to be used. Fit- tings shall be of the same quality and material as the pipe used except that tees, wyes, and bends for use with asbestos -cement pipe may be cast-iron. 4. Manholes: Manholes shall conform to 1969 edition APWA's Standard Specification for Municipal Public Work Con- struction Section 63, Type lAl, except manhole steps shall be safety type. 0C B. CONSTRUCTION DETAILS. 1. Excavation and Backfill: a. Excavation: In all cases trenches must be of sufficient width to permit proper jointing of the pipe and back- filling 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. All material excavated from trenches and piled adjacent to the trench or in a roadway or public thorough- fare 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 clear- ance 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 Superintendent unless it is approved for backfill by the Superintendent. All excavations required for the installation of a building sewer shall be open trench work, unless other- wise approved by the Superintendent. No backfill shall be placed until. the work has been inspected by the Sewer Superintendent. b. Dewatering: Pipe trenches shall be kept free from water during pipe laying and jointing by such method as the con- tractor may elect, providing the method is acceptable to the Superintendent. The contractor shall be responsible for damages of any nature resulting from the dewatering operation. -2- C. Foundations and Bedding: Proper preparation of founda- tions, placement of foundation material where required, and placement of bedding material shall precede the in- stallation 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 com- pacted 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 mat- erial except where specifically excluded by the Super- intendent in the field. Minimum thickness of the bedding under any portion of pipe shall be four (4) inches. The sewer pipe shall be completely enclosed within the bedding material and minimum cover over the pipe shall be two (2) inches. e. Cribbing and Sheeting: The contractor shall provide all cribbing and sheeting needed to protect the work, exist- ing 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 -3- 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 com- pleted to adequately hold the pipe in place. The sewer pipe, unless otherwise approved by the Superintendent, 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: 4" 2.0 % 6" 1.0 % 8" 0.4 a 10" 0.25% 12„ 0.20% 15" 0.150 18" 0.125% 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 deflect- ing 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 ex- ceed 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. -4- Changes in grade or alignment for eight (8) inch pipe or larger shall be by the use of an approved man- hole. Side sewers shall be connected to the tee, wye, or stub provided in the public sewer where such is avail- able 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 Superin- tendent. All side sewers shall be tested full length in compliance with the City standard air or hydrostatic test and in the presence of the Superintendent 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 mini- mum 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 riot be laid in the same trench. Paral- lel 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 approxi- mately 90° and the sewer shall be located 3 or more feet below the water line or be constructed of cast iron pipe with water tight joints, or equal construction, as ap- proved by the Superintendent, for a distance of 10 feet on both sides of the water lines. (Refer to Washington Pollution Control Commission Guide "Sewage Works De- sign", April, 1953). -5- 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 (2') 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 cast iron pipe with approved joints. If installed in filled or unstable ground, the building sewer shall be of cast iron pipe, except that non-metallic material may be accepted if laid on a suit- able concrete bed or cradle as approved by the Super- intendent. 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 (901) of grade or alignment, except that no clean-out will be required at the con- nection 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 sewer. 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 Superintendent of Sewers may issue a special permit for the installa- tion 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 C� by reason of such installation. Two adjacent single family lots may be connected to a single side sewer stub at the common lot line. All other property shall have an individual side sewer. Old building sewers may be used in connection with new building only when they are found, on examination and test by the Superintendent, 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 subse- quent 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. -7- During all phases of the backfilling operations and testing as outlined herein, the contractor shall protect the sewer installation, provide for the mainte- nance of traffic as may be necessary, and provide for the safety of property and persons. 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 Superintendent. 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 Superintendent may direct. Such material shall be approved by the Superintendent. SECTION 200 Call for Inspection, Notice of Defects: Any per- son performing work under permit pursuant to the provisions of this code shall notify the Superintendent 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 con- nection shall be under the supervision of the Superintendent or his representative. 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 man- ner satisfactory to the City. Restoration and clean up shall be completed to the satisfaction of the Superintendent 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 Superintendent at any time before final acceptance or before ex- piration of the guaranty period, be repaired or be removed and re- placed to the satisfaction of the Superintendent within five (5) days. If the inspector finds the work or material used is not in ac- cordance 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 all 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 Superintendent. SECTION 300 Inspection 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 out- let to the point where it connects with the iron pipe or other plumb- ing of the building or premises to be connected, shall have been in- spected and approved by or under the direction of the Superintendent, 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 will be accomplished after backfill has been placed to a suitable depth. SECTION 400 Excavation in Streets to be Guarded: All exca- vations 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 con- tractor 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 pro- secuted to completion with due diligence, and if any excavation is left open beyond a reasonable time, the Superintendent of Sewers shall cause the same to be refilled and the street restored.forth- with, and any cost incurred in such work shall be charged to the con- tractor in charge of such work, and must be paid before he shall receive any future permit from the Superintendent of Sewers. SECTION 600 Improper Work; City Map Complete, Assess Cost: If any work done in pursuance of a permit is not constructed and com- pleted in accordance with the provisions of this code and the plans and specifications as approved by the Superintendent of Sewers, and if the contractor or person doing the work shall refuse 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 Superintendent of Sewers 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 Superintendent stating the name of the owner or occupant of the premises to be connected, giving lot, block and ad- dition, 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 Superin- tendent for approval. The Superintendent 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 con- necting sewer, and shall endorse his approval on such plans and spe- cifications as heretofore provided, the Superintendent shall issue a permit as provided by ordinance and it shall be unlawful for any -10- 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 Superintendent 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 con- nected 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 de- termined by any Health Officer of the Superintendent 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 Super- intendent 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 ob- struction of said side sewer, within the time specified in such no- tice, the Superintendent 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 Superintendent shall be assessed against such property, or collected from the person responsible for such con- dition, and the amount thereof shall become a lien upon the said pro- perty, 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 com- petent jurisdiction. -11-