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HomeMy WebLinkAbout11813RESOLUTION NO. 11813 A RESOLUTION APPROVING REVISIONS TO THE SANITARY SEWER DESIGN CRITERIA AND POLICIES MANUAL FOR THE CITY OF PUEBLO BE IT RESOLVED BY THE CITY COUNCIL OF PUEBLO, COLORADO, that: (brackets indicate matter being omitted; underscoring indicates new matter being added) SFrTinN 1 Chapter 1 of the Sanitary Sewer Design Criteria and Policies for City of Pueblo, Colorado is hereby amended to read as follows: CHAPTER 1. GENERAL PROVISIONS 1.1 JURISDICTION All of the policies and design criteria set forth in this manual are adopted pursuant to the authority of Sections 4- 2 -2(i), 12- 4 -2(7), 12 -4 -5, 12- 4- 6(b)(3)(b) of the Pueblo Municipal Code, as amended, and shall apply to all land within the incorporated areas of the City, and all facilities constructed on City right -of -way (ROW), easements dedicated for public use, and to all privately owned and maintained sanitary sewer facilities. 1.2 PURPOSE AND INTENT These regulations are adopted for the purposes of assuring safe, efficient operation of the wastewater system and are intended to prevent wastewater discharges to the system in concentrations or quantities which have the potential to harm or adversely affect the wastewater system, wastewater treatment process or equipment, or any receiving water. These regulations are adopted generally for the purpose of promoting public health and safety and preventing the occurrence of nuisance conditions. These regulations are not intended, nor should they be construed, to create any new rights, remedies, or benefits for any person, firm, corporation or entity. All Master Development Plans, Subdivisions, Resubdivisions, Planned Unit Developments, Special Area Plans, or other proposed construction submitted for approval under the provisions of Title 12, Chapter 4 of the Pueblo Municipal Code shall include provisions for connection of such development to the City's sanitary sewer system, provisions to ensure adequate sewerage collection, and also, shall comply with the sanitary sewer design criteria and policies set forth in this manual. All designs, analyses, and reports shall be prepared under the supervision of a Professional Engineer (Engineer), licensed as such in the State of Colorado. 1.3 DEFINITIONS "Backbone System" means that system of major wastewater collection interceptor sewer mains, typically including those greater than 12 inches in diameter (unless otherwise identified by the City), in addition to the wastewater treatment facilities. "Backup" means the flow of sewage from a sanitary sewer owned and operated by the City into a private residence or business by means of the building sewer or service line, resulting from a blockage in the sanitary sewer owned by the City. "Branch Sewer" means a sewer that receives wastewater from a relatively small area and discharges into a trunk sewer serving more than one branch -sewer area. Branch sewers are typically eight (8) inches to ten (10) inches in diameter. In plumbing, a branch sewer is the sewer to which an individual building sewer is connected. "Building Drain" means that part of the lowest piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning two (2) feet outside the building wall. "Building Sewer" or "Service Line" means that part of the horizontal piping of a drainage system which extends from the end of the building drain and which receives the discharge of the building drain and conveys it to a public sewer, private sewer, individual sewage disposal system, or other point of disposal. "Campus" means a physically contiguous association of locations such as school or university buildings, several adjacent office buildings, warehouse buildings, manufacturing facilities, retail or wholesale stores, or a combination of buildings and open space under common ownership and /or management of a corporation, association, or group. "CIRSK means the Colorado Intergovernmental Risk Sharing Agency in which the City of Pueblo participates with other municipal governments within Colorado for certain risk management services. "Collector Sewer" means a sewer located in the public way which collects the wastewater discharged through building sewers and conducts such flows into larger interceptor sewers and pumping and treatment works. "Concrete Arch" is a bedding method as follows: The pipe is embedded in a compacted granular material having a minimum thickness of Y4 the outside diameter or 4 inches minimum between barrel and bottom of trench excavation and extending half way up the sides of the pipe. The top half of the pipe is covered with reinforced concrete arch having a minimum thickness of Y4 of the outside diameter or 4 inches minimum measured at the crown of the pipe and having a minimum width equal to the outside pipe diameter plus 8 inches. "Cost Recovery" means the system established in Title 16, Chapter 5 of the Municipal Code that provides a mechanism for developers to partially recover the costs of installing excess capacity in sanitary sewer construction where oversize, off -site, or perimeter sewer improvements are required to ensure that construction of the sanitary sewer system proceeds in a planned and organized fashion and provides facilities that are adequately sized to serve reasonably anticipated future development. "Depth of Sewer" means the vertical distance from the ground surface over the sewer to the top of the sewer pipe. "Developer" means an owner or owners of one or more parcels of property intending to undertake a development of same. "Development" means the entire development within the Property Master Plan (PMP). Individual subdivisions within the PMP are considered phasing of the development. Development means any one (1) or more of the following activities: a. Subdivision or resubdivision of one (1) or more parcels of property into distinct or revised lots or parcels, or any other activity defined as a subdivision in Section 12 -4 -3 of this Code; b. Procurement of any building or plumbing permit to construct improvements upon property which are intended for a use or occupancy likely to generate an increased volume of wastewater or produce wastewater with an increase in concentration of suspended solids, biological oxygen demand, metals or other pollutants; or c. A rezoning of property which would permit a higher density use or other new use which would foreseeably generate an increased volume of wastewater over the use or uses of the property permitted by the existing zoning classification. "Director of Public Works" is the manager of the Bureau of Public Works, or a designated representative. "Hydrocleaning" means the process of cleaning sanitary sewer lines using high - pressure water jets that dislodges accumulated materials via the mechanical action of the water spray. "Infiltration" is groundwater flow entering the sewer system, seeping in through defective pipe joints and cracks in manholes and sewer pipe. Infiltration does not include, and is distinguished from, inflow. "Inflow" is flow entering the sewer system in the form of direct connections such as roof and area drains. Inflow does not include, and is distinguished from, infiltration. "Intercepting Sewer" means a sewer that receives flow from a number of collector sewers or outlets and conducts such waters to the outfall sewer for treatment or disposal. "Inverted siphon" is a depressed sewer that drops below the hydraulic gradient to avoid an obstruction such as a stream or drainage way. "W" means any combination of infiltration and inflow, without regard to the source(s). "Line" means a pipeline constructed for the purpose of conveying wastewater to the outfall sewer. "Line size" means the interior diameter of a round pipe. "Low tap" means a service line not constructed in accordance with the requirements of Sheet SD 21, Sanitary Sewer Trench Detail, of the Standard Construction Specifications and Standard Details for the City of Pueblo, Colorado, in that it connects to the sanitary sewer line so that the flow line of the service line is below the spring line of the public sewer pipe for 8 -inch and 10- inch sewer mains, or below the top one - quarter of the public sewer pipe for 12- inch and larger sewer mains. "Master Development Plan" means a plan prepared in accordance with the requirements of Section 12- 4 -6(a) of the Pueblo Municipal Code. "Non uniform flow" means a flow regime where the water surface varies non - uniformly over a horizontal distance due to a change in pipe size or grade. "Off -site sewer collection system improvements" means sewer collection system improvements required to be constructed outside the boundaries of the property which is the subject of the development, and which, in addition to serving all foreseeable needs of the property which is the subject of the development, is also specifically intended and designed to be capable of providing sewer service to property other than the subject of the development. " Outfall Sewer" means a sewer that receives wastewater from a collection systems or from a treatment plant and carries it to a point of final discharge. Peak flow" is the peak hourly flow. "PMP" means a Property Master Plan which consists of Land Use Plan, Drainage Plan, Sanitary Sewer Master Plan, and Transportation Plan as required by City of Pueblo Annexation Agreement for the development. "Private sewer" means a sanitary sewer main, pipe, or piece of equipment in a right -of -way or easement to which title has not been conveyed to the City of Pueblo, but which connects to the sanitary sewer collection system owned and operated by the City of Pueblo for the purpose of conveying sanitary sewage to Pueblo's water reclamation facility for treatment and disposition. A private sewer receives the discharge from one or more building drains and conveys it to a public sewer, private sewage disposal system, or other point of disposal. "Protruding tap" means a service line not constructed in accordance with the requirements of Section 12.3.15 of the Standard Construction Specifications and Standard Details for the City of Pueblo, Colorado, in that it protrudes into a sanitary sewer line in such a manner that it can block the passage of cleaning equipment and can cause a blockage in the sewer line by providing a point at materials carried in sewage can accumulate to block normal sewage flow. "Public or Public Use" means all buildings or structures that are not defined as private or private use. "Public Sewer" means a common sewer directly controlled by the City of Pueblo. "Pueblo Municipal Code" means Charter and Code of the City of Pueblo, Colorado. "Relief Sewer" means (a) a sewer built to carry the flows in excess of the capacity of an existing sewer, (b) a sewer intended to carry a portion of the flow from a district in which the existing sewers are of insufficient capacity, and thus prevent overtaxing the latter, or (c) replacement of the existing sewer in place with a larger sewer main. "Reimbursement" means payments made to persons to partially compensate for the costs of removing sewage and cleaning fouled structures in private homes or businesses resulting from a blockage in a sanitary sewer owned by the City. "Sanitary Sewer" means a sewer that carries liquid and water - carried wastes from residences, commercial buildings, industrial plants, and institutions, together with minor quantities of storm, surface, and groundwaters that are not admitted intentionally. "Sanitary Sewer System" means the collective public sewer system and treatment facilities. "Service Line" or "Building Sewer" means that part of the horizontal piping of a drainage system which extends from the end of the building drain and which receives the discharge of the building drain and conveys it to a public sewer, private sewer, individual sewage disposal system, or other point of disposal. "Service Stub" means a portion of a future building sewer running from the sewer main to approximately the property line. "Sewer" means a pipe or conduit that carries wastewater or drainage water. "Sewer Main" or "Collection Line" means any portion of the wastewater treatment system which collects and transmits wastewater from the outfall of building sewers to the wastewater treatment plant, excluding service lines. "Shallow Sanitary Sewer Service" means any sewer service too shallow to accommodate a basement by means of gravity flow. "Springline" means the horizontal mid - height line of a pipe with a circular cross section, or a horizontal line at half the height of the minor axis for a pipe with a non - linear cross section. "Standard Construction Specifications and Standard Details for the City of Pueblo, Colorado" means the manual developed by the City of Pueblo's Bureau of Public Works related to construction specifications and standard details, dated March 28, 2005, and as same may be amended. "Tap" means the physical connection point where a building sewer or service line connects to a public sewer. "Trunk Sewer" means the principal sewer to which branch sewers are tributary. Trunk sewers are typically ten (10) inches to twelve (12) inches in diameter. "UPC" means the that edition of the Uniform Plumbing Code produced by the International Association of Plumbing and Mechanical Officials specified in Title IV, Chapter 4, Article 1 of the Municipal Code, and as same may hereafter be amended. "Wastewater" means the spent water of a community. From the standpoint of source, it may be a combination of the liquid and water - carried waste from residences, commercial buildings, industrial plants, and institutions, together with any groundwater, surface water, and any lawfully or unlawfully contributed stormwater that may be present. Formerly referred to as sewage. 1.4 MODIFICATIONS To the extent applicable, requests for modifications to the design standards and criteria set forth herein shall be submitted in accordance with Section 12 -4 -10 of the Pueblo Municipal Code, or as same may be amended. 1.5 RELATIONSHIP TO OTHER STANDARDS Included in this manual are approved design methods, charts and tables, which when used will enable the City to perform its review in a more efficient and expeditious manner. If the Developer and /or land owner prefers to use other methods, charts or tables, prior approval shall be obtained from the Director of Public Works before submittal. 1.6 PERMITS AND OTHER REQUIREMENTS The Developer and /or land owner shall be required to obtain all permits required by Federal, State, or Local Agencies in conjunction with work covered under this manual, and shall be required to comply with requirements which may be imposed directly by such agencies or which may be indirectly necessitated in order for the City to comply with any permit which may be issued to the City. 1.7 LIABILITY The adoption of this manual shall not create any duty to any person, firm, corporation, or other entity with regard to the application, enforcement or nonenforcement of this manual. No person, firm, corporation, or other entity shall have a private right of action, claim or civil liability remedy against the City of Pueblo, or its officers, employees or agents, for any damage arising out of or in any way connected with the adoption, application, enforcement, or nonenforcement of this manual. Nothing in this manual shall be construed to create any liability under, or to waive any of the immunities, limitations on liability, or other provisions of, the Governmental Immunity Act, C.R.S. 24 -10 -101 et. seq., or to waive any immunities or limitations on liability otherwise available to the City of Pueblo or its officers, employees or agents. Review and approval by the City of sanitary sewer improvements proposed in submittals does not relieve the engineer who designed such improvements from his professional responsibilities for the adequacy of the design of said improvements. 1.8 PRIVATE SEWERS AND PRIVATE PUMP STATIONS All sanitary sewers constructed within the City of Pueblo, whether designed as private sewers or as public sewers, shall conform to all the design specifications set forth in this manual. All sanitary sewers constructed within the City of Pueblo shall be considered public sewer mains unless specifically designated as private by the Pueblo City Council. This includes any sanitary sewer system that is extended beneath private roads, and sanitary sewers serving developments comprised of separate land parcels of record. Developers are required to provide adequate access to all sanitary sewer manholes regardless of their location in private roadways or parking lots. Sanitary sewers underlying private property where all lots are under common ownership (i.e., shopping centers, business parks, campuses, golf courses, special area plans, condominium developments, subdivisions where the subdivision approval process includes special permission from the City Council for the sanitary sewer system within the subdivision to remain private, etc.) shall be considered private sanitary sewer service lines. Maintaining private sanitary sewer service lines shall be the sole responsibility of the property owner. The Pueblo Wastewater Department may respond in emergency situation (i.e., when a sanitary sewer overflow is in progress) to contain sewage spills and clear private mains. In such situations, the cost of emergency response shall be billed to the property owner at a rate of 150% of the actual cost of the response. In addition, the Wastewater Department will make telephonic reports of sanitary sewer overflows to the Colorado Department of Health and Environment ( CDPHE). The Wastewater Department will advise CDPHE that the sanitary sewer overflow is the responsibility of the property owner, and will refer the name and address of the property owner to CDPHE for action. Private sewers and pump stations are intended to serve only site specific developments, (i.e., shopping centers, business parks, campuses, golf courses, special area plans, condominium developments, subdivisions where the subdivision approval process includes special permission from the City Council for the sanitary sewer system within the subdivision to remain private, etc.) and shall not serve any area beyond the development or become part of the Sanitary Sewer System. The City of Pueblo is not responsible for operating or maintaining private sewers or private pump stations. 1.9 OWNERSHIP, SEWER AND APPURTENANCES 1.9.1 Connection with system, when required. All vaults, water closets and privies, together with all drainage from bathtubs, sinks and basins, situated on premises located on the line of any street, alley or avenue in the City, through which there is a public or district sewer, shall be connected by the owner of the property, or his or her agent, with such public or district sewer, when required so to do by order of the Director of Public Health. 1.9.2. Extension of system; necessity. Whenever in the opinion of the City Council declared by resolution an immediate necessity exists for the preservation of public health by extension of existing sewer lines as part of the sewerage system owned by the City, the City Council may order the construction of such extension. 1.9.3 City property; assessment. The extension provided for in the preceding Section hereof when completed shall be the property of the City and the cost of the same when incurred pursuant to the terms of this Chapter shall be paid by the City from the general fund; and the City shall be reimbursed, in whole or in part, by the proceeds and returns of special assessments upon the property, if any, especially benefited; and the returns and proceeds of such assessments made pursuant to this Chapter shall be paid into the general fund. 1.9.4 Construction procedure. When cost of such protect is to be in whole or in part charged against property benefited, the proceedings for the construction of sewer protects authorized herein shall be in accordance with Title XII of the Pueblo Municipal Code, as amended." 1.9.5 Costs; apportioned; installments; waiver; cumulative provision. (a) The cost of sanitary sewers shall be paid for by the lot or lots or owners thereof abutting upon the alleys or streets where laid, in proportion to the benefited frontage of such lot or lots on same. Where benefits are derived by property not abutting on the line of such sewer, the City Council shall cause such cost to be zoned in such manner as to include all benefited property according to the benefits derived. The cost to be charged to the City, if any, shall be determined by the City Council according to the extent and use of such extension as a part of the principal sewer lines of the City sewerage system, its capacity and availability to serve such purpose and the location thereof in the streets of the City. (b) Installments of assessments under this Chapter shall not exceed the term of three (3) annual installments for the whole amount assessed. (c) Owners of property to be benefited, or any of them, may in writing waive all proceedings preliminary to assessment and consent that such assessment be made by resolution of the Citv Council. (d) The provisions of this Chapter shall be cumulative with all other powers of the City Council, or procedures for the exercise thereof with respect to sewers. 1.9.6 Sewer and water fee in lieu of assessment Within ten (10) years after the complete installation of any water or sewer system financed in whole or in part by special improvement district bonds, an owner of property which was not included within the District shall, if at the time the ordinance creating the District was enacted the property was not within the City or if the property was in the City and within two hundred (200) feet from the boundary of the District, be required to pay the City a fee prior to connecting onto said system. The fee, to be computed by the Director of Public Works, shall be equivalent to the amount and based upon the method of assessment for property within said District plus interest thereon at six percent (6 %) per annum from the date of complete installation. 1.9.7. Ownership and Responsibility. Owners of properties served by sanitary sewers shall own all of the service lines or building sewers that connect structures on the property to the Public Sewer, including the tap itself. Property owners shall be responsible for maintaining, repairing, or replacing service lines and building sewers at their sole expense. SECTION 2. After adoption of this Resolution, a true copy of the Sanitary Sewer Design Criteria and Policies Manual for the City of Pueblo, as revised, shall be maintained on file in the office of the City Clerk for public inspection. Copies shall be made available through the City's Department of Public Works for purchase by the public at a moderate price. SFOTin i This Resolution shall become effective upon final passage and approval; however, the revision to the Sanitary Sewer Design Criteria and Policies Manual for the City of Pueblo adopted hereby shall become effective thirty days after passage of this Resolution. INTRODUCED: February 22, 2010 BY: Vera Ortegon COUNCILPERSON APPROVED: RESIDENT CF CITY CC) UNCIL ATTESTED BY: GIB' Y CLERK L) 4 Background Paper for Proposed Resolution AGENDA ITEM # M -10 DATE: FEBRUARY 22, 2010 DEPARTMENT: WASTEWATER DIRECTOR —GENE MICHAEL TITLE A RESOLUTION APPROVING REVISIONS TO THE SANITARY SEWER DESIGN CRITERIA AND POLICIES MANUAL FOR THE CITY OF PUEBLO ISSUE Should the City Council approve various revisions to the Sanitary Sewer Design Criteria and Policies Manual for the City of Pueblo? RECOMMENDATION Approval of this Resolution BACKGROUND The City's Sanitary Sewer Design Criteria and Policies Manual, which was adopted by City Council in May of 1999 and revised December 2003, May 2006, June 2007, and April 2008, governs the design of sanitary sewers, master planning for development, and operation and maintenance of sanitary sewers. The language added by this resolution clarifies ownership and responsibility for maintenance and repairs on private sewer service lines, and incorporates existing language from the Municipal Code. FINANCIAL IMPACT The proposed revisions will have no impact on City costs.