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HomeMy WebLinkAboutCorrespondence PWE 5/3/2012 • • Memorandum City of Springfield Date: 5/3/2012 To: Mark Metzger, Urban Planner From: Clayton McEachern, Civil Engineer • Subject: TYP212-0000x Prosper Park I have reviewed the materials provided with the subject application. The recommended findings and conditions outlined below are provided for your use in preparing the land-use decision. SANITARY SEWER Finding: Section 4.3-105.A of the SDC requires that sanitary sewers shall be installed to serve each new development and to connect developments to existing mains. Additionally, installation of sanitary sewers shall provide sufficient access for maintenance activities. Finding: Section 4.3-105.0 of the SDC requires that proposed sewer systems shall include design consideration of additional development within the area as projected by the Metro Plan. Finding: The proposed plan shows a building being constructed above an existing sanitary sewer line. Condition: This line must conform to all applicable building code requirement for construction of a wastewater lateral line underneath a building or be relocated to a location outside of any building footprint. Finding: Pursuant to Chapter 3.03.4.A of the City's Engineering Design Standards and Procedures Manual and Section 4.4 of the City of Eugene Stormwater Management Manual, solid waste storage areas shall be covered and hydraulically isolated from potential stormwater runoff, and directed to the sanitary sewer system. Finding: Section 5.17-155 and 5.17-120 of the SDC, All private businesses are required to provide access and infrastructure for all utility services, including refuse removal. Self storage facilities tend to generate a high level of dry, solid waste due to their business model of providing safe long term storage of material goods. Condition: The applicant shall provide a covered solid waste storage area large enough o accept a standard sized dumpster that is covered, hydraulically isolated, plumbed to sanitary sewer and screened to current city standards. 53��a Date Received:■— _-- Planner: Work oi'q STORMWATER MANAGEMENT Finding: Section 4.3-110.B of the SDC requires that the Approval Authority shall grant development approval only where adequate public and/or private stormwater management systems provisions have been made as determined by the Public Works Director, consistent with the Engineering Design Standards and Procedures Manual (EDSPM). Finding: Section 4.3-110.D of the SDC requires that run-off from a development shall be directed to an approved stormwater management system with sufficient capacity to accept the discharge. Finding: Section 4.3-1 10.E of the SDC requires new developments to employ drainage management practices, which minimize the amount and rate of surface water run-off into receiving streams, and which promote water quality. Finding: The proposed plans show a new connection from the development to an existing 24" public line along the northern property boundary. Finding: No utility easement is shown for the existing 24" storm drain line that runs along the southern boundary of the adjacent parcel to the north (TL #1702310001000). Condition:Prior to being issued building permits an easement will need to be recorded for the extension of the private line to the existing public line across the adjoining parcel. If a public utility easement does exist for this line, or is dedicated as part of this development this condition is also satisfied. Condition: The applicant will need to obtain an encroachment permit for the proposed connection to the existing 24" storm drain line. WATER QUALITY Finding: Under Federal regulation of the Clean Water Act (CWA), Endangered Species Act (ESA), and National Pollutant Discharge Elimination System (NPDES), the City of Springfield has obtained a Municipal Separate Storm Sewer System (MS4) permit. A provision of this permit requires the City demonstrate efforts to reduce the pollution in urban stormwater to the Maximum Extent Practicable (MEP). Finding: Federal and Oregon Department of Environmental Quality (ODEQ) rules require the City's MS4 plan address six "Minimum Control Measures." Minimum Control Measure 5, "Post-Construction Stormwater Management for New Development and Redevelopment," applies to the proposed development. Finding: Minimum Control Measure 5 requires the City of Springfield to develop, implement and enforce a program to ensure the reduction of pollutants in stormwater runoff to the MEP. The City must also develop and implement strategies that include a combination of structural or non-structural Best Management Practices (BMPs) appropriate for the community. • • Finding: Minimum Control Measure 5 requires the City of Springfield use an ordinance or other regulatory mechanism to address post construction runoff from new and re- development projects to the extent allowable under State law. Regulatory mechanisms used by the City include the Springfield Development Code (SDC), the City's Engineering Design Standards and Procedures Manual (EDSPM) and the Stormwater Facilities Master Plan(SFMP). Finding: Section 3.02 of the City's EDSPM states the Public Works Department will accept, as interim design standards for stormwater quality, water quality facilities designed pursuant to the policies and procedures of either the City of Eugene Stormwater Management Manual. Finding: Section 3.03.3.B of the City's EDSPM states all public and private development and redevelopment projects shall employ a system of one or more post-developed BMPs that in combination are designed to achieve at least a 70 percent reduction in the total suspended solids in the runoff generated by that development. Section 3.03.4.E of the manual requires a minimum of 50 percent of the non-building rooftop impervious area on a site shall be treated for stormwater quality improvement using vegetative methods. Finding: To meet the requirements of the City's MS4 permit, the Springfield Development Code, and the City's EDSPM, the applicant has not proposed any stormwater treatment facilities. Finding: Due to the nature of the proposed redevelopment the City will allow catch basin filter inserts to be used in lieu of a dedicated vegetative storm water treatment facility. Condition: The applicant will provide a drop in catch basin filter for all existing and proposed stormwater catch basins. These filters will meet the Cities above requirement for reduction in stormwater pollutants. Condition: Any new catch basins installed or replacement of existing catch basin will be of the double chambered type and also have a drop in filter insert. Condition: Prior to approval of the final site plan, the applicant shall provide an operations and maintenance plan to the City for review to ensure the long-term maintenance and operation of the proposed catch basin filters. The plan should designate maintenance responsibility for operating and maintaining the system, and should be distributed to all property owners and tenants of the site. The applicant will supply the information from the manufacturer of the drop in filters as part of this maintenance agreement. A blank copy of the maintenance agreement is provided with this response. UTILITIES, EASEMENTS AND RIGHTS OF WAY Finding: Section 4.3-130.A of the Springfield Development Code requires each development area to be provided with a water system having sufficiently sized mains and lesser lines to furnish adequate supply to the development and sufficient access for • • maintenance. Springfield Utility Board coordinates the design of the water system within Springfield city limits. The current plan proposal does not show locations or sizes of proposed water lines. Finding: Section 4.3-140.A of the SDC requires applicants proposing developments make arrangements with the City and each utility provider for the dedication of utility easements necessary to fully service the development or land beyond the development area. The minimum width for public utility easements adjacent to street rights of ways shall be 7 feet. The minimum width for all other public utility easements shall be 7 feet. The Public Works Director may require a larger easement to allow for adequate maintenance. OTHER NOTE: The intent of this list is to give a developer insight about requirements that may apply before they develop their property. FEES AND PERMITS SYSTEMS DEVELOPMENT CHARGE: Pay applicable Systems Development Charges when building permits are issued for developments within the City limits or within the Springfield Urban Growth Boundary. (The cost relates to the amount of increase in impervious surface area, transportation trip rates, and plumbing fixture units. Some exceptions apply to Springfield Urban Growth areas.) [Springfield Code Chapter II, Article II] Systems Development Charges (SDC's) will apply to the construction of buildings and site improvements within the subject site. The Charges will be based upon the rates in effect at the time of permit submittal for buildings or site improvements on each portion or phase of the development. OTHER PUBLIC WORKS PERMITS: Encroachment Permit (working within right-of-way or public easements) Curbcut permit Driveway permit Sidewalk permit Land & Drainage Alteration Permits (LDAP). [Contact the Springfield Public Works Department @ 726-5849 for appropriate applications/requirements]