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HomeMy WebLinkAboutComments PWE 5/13/2008 . . - Memorandum City of Springfield Date: To: From: Subject: May 13, 2008 Andy Limbird, Urban Planner Jesse Jones, Civil Engineer DRC2008-0002S, East and West Coast Auto 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 jFinding: Section 4.3-IOS.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. j Finding: The applicant has proposed to connect to the existing sanitary sewer lateral located in Smith Way along the north side of the parcel, as shown on plan sheet C4. Finding: Pursuant to Chapter 3.03.4.A ofthe City's Engineering Design Standards and J Procedures Manual and Section 4.4 of Portland's Stormwater Management Manual, solid waste storage areas shall be. covered and hydraulically isolated from potential stormwater runoff, and directed to the sanitary sewer system. The applicant has complied with this section of the code as shown on plan sheet C4. ) STORMWATER MANAGEMENT Finding: Section 4.3-1 IO.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. Section 4.3-11O.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. ) Date Received: Planner: AL 1> /;;I:Jobt / j j j . . vegetated swale is 3:1 and the maximum side slope for grassy swale is 4:1. Condition: Per the Portland BES Stormwater Management Manual (page 2-65 through 2-72) the maximum side slope a vegetated swale is 3:1 and the maximum side slope for grassy swale is 4:1. Adjustthe side slopes of the proposed swales in accordance with the Portland BES Stormwater Management Manual. j Finding: The proposed vegetated swales are located in the proposed 7.0' P.D.E. Per 3.03.6 of the Engineering Design Standards Manual, the flow path (swale bottom) and structural components (flow control, pipes, etc) must be located outside of the P.D.E. j Condition: Per 3.03.6 ofthe Engineering Design Standards Manual, relocate the structural components and flow path of the proposed vegetated swale outside the P.D.E. Alternatively, obtain concurrence from the affected utility providers for the placement of swales in the P.D.E. j Finding: Per the Portland BES Stormwater Management Manual (page 2-65 through 2- 72) the required setback from the centerline of the swale to the building foundation is to.O' unless lined with impermeable fabric. / Condition: Per the Portland BES Stormwater Management Manual (page 2-65 through 2-72), provide a 10.0' setback from the building foundation to the swale centerline or line the swale with impermeable fabric. jFinding: The applicant proposes to extend an 8" stormwater line from the southwest comer of the property to tie into the existing stormwater system, as depicted on sheet C4. This extension is in the public right-of-way and will require a Public Improvement Proj ect. Condition: The applicant shall construct the proposed public storm line as a Public Improvement Project. Alternatively, the applicant can relocate the proposed stormwater line onto T.L 400 and obtain a private easement. The capacity at the proposed point of connection must be verified. j Finding: The vegetation proposed for use in the vegetative swale will serve as the primary pollutant removal mechanism for the storm water runoff, and will remove suspended solids and pollutants through the processes of sedimentation and filtration. Satisfactory pollutant removal will occur only when the vegetation has been fully established. Condition: To ensure a fully functioning water quality system and meet objectives of Springfield's MS4 permit, the Springfield Development Code and the EDSPM, the proposed vegetative swales, shall be fully vegetated with all vegetation species established prior to issuance of the tentative occupancy building permit. Alternatively, is this condition cannot be met, the applicant shall provide and maintain additional interim erosion controVwater quality measures acceptable to the Public Works Department that will suffice until such time as the swale Date Received: ,j,l/,uW Planner: AL 'I , j . . vegetation becomes fully established. ,j WATEROUALITY Finding: Under Federal regulation of the Clean Water Act (CW A), 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) appropriated 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 future Stormwater Facilities Master Plan (SFMP). j Finding: As required in Section 4.3-110.E of the SDC, "a development shall be required to employ drainage management practices approved by the Public Works Director and consistent with Metro Plan policies and the Engineering Design Standards and Procedures Manual." , j 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 Portland (BES), or the Clean Water Services (CWS). PUBLIC STREETS. SInEW ALKS & IMPROVEMENT AGREEMENTS UTILITIES. EASEMENTS AND RIGHTS OF WAY Finding: Section 4.3-J.30.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. Date Received: s:I;/.J-k1 Planner: AL . . . Finding: Section 4.3-l40.A ofthe SDC requires applicants proposing developments make arrangements with the City and each utility provider for the dedication of utility I 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. I;inding: The applicant proposes 7.0' P.U.E. along the frontage of 42nd St. and Smith J Way as shown on sheet Cl. OTHER PERMITS OTHER NOTE: The intent ofthis list is to give a developer insight about requirements related to public improvements 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 11] 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. SANITARY SEWER IN-LIEU-OF -ASSESSMENT CHARGE: Pay a Sanitary Sewer In-Lieu-of-Assessment charge in addition to the regular connection fees ifthe property or portions ofthe property being developed have not previously been assessed or otherwise participated in the cost of a public sanitary sewer. Contact the Engineering Division to determine ifln-Lieu-of-Assessment charge is applicable. lOrd 5584] PUBLIC INFRASTRUCTURE FEES: It is the responsibility of the private developer to fund the public infrastructure. OTHER CITY PERMITS: Date Received: .Jj/)P()f I / Planner: AL . . . . Encroachment Permit or Sewer Hookup Permit (working within right-of-way or public easements) example: new tap to the public storm or sanitary sewer, or adjusting a manhole. [The current rate is $135 for processing plus applicable fees and deposits] Land & Drainage Alteration Permits (LDAP). [Contact the Springfield Public Works Department @ 726-5849 for appropriate applicationslrequirements] ADDITIONAL PERMITS/APPROV ALS MAYBE NECESSARY: . Metropolitan Wastewater Management Commission (Pump station, sanitary sewers 24 inches or larger) . Lane County Facilities Permit (If the project is within Lane County jurisdiction) . RaiIfoad (If the project crosses a railroad) . Oregon Department of Transportation (If the project is within ODOT jurisdiction) . Division of State Lands (Storm water discharge, wetlands) . Oregon Department of EnvironmentaJ Quality (Erosion control (5 acres or greater), pump station, storm water discharge, wetlands) . U.S. Army Corps of Engineers (Storm water discharge, wetlands) Date Received: '//).1pf Planner: Al