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Home My WebLink AboutComments PWE 2/13/2007 ...{v . Memorandum City of Sprin.gfield Date: To: From: Subject: February 13,2007 , Dave Re'esor, Urban Planner Jesse Jones, EIT, Civil Engineer-in- Training' DRC2007-00009 Site Plan Tent (OR Urology Institute) 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: The applicant has propo'sed to connect to the existing sanitary sewer system on . the south side ofthe proposed building. . STORMW ATER MANAGEMENT Finding. Section 32.110 (2) of tl)e SDC requires'that the Approval Authority shall grant development approval only where adequate public and/or private storn1water management systems provisions have been made as determined by the Public Works . Director, consistent with'the Engineering Design Standards and Procedures Milnual . (EDSPM). Finding: Section 32.110 (4) 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 32.110 (5) of the Springfield Development Code (SDq 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: To comply with Sections 32.110 (4) & (5), stormwater runoff from the site will be directed into a pair of vegetative water quality swales, before discharge through 'curb weep holes into the gutter system. The runoff will then enter curb inlets along G and F Streets. . .' Finding: The existing public storm water system, to which the applicant proposes connection,ha.s limited capacity. The applicant has turned in hydrologic stomiwater . calculations consistent with the City's EDSPM 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 StJrm 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 Storm water 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 ill stormwater runoff to the MEP. The City must also develop and implement strategies t,hat 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 otherreglilatory 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). Finding: As required,in Section 3"1.050 (5) 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." Finding: Section 3.02 of the City's EDSPM states the Pubic Works Department will accept, as interim design standards for stormwater quality, water quality facilities designed pursuant to tbe policies an<J procedures of either the City of Portland (BES), or the Clean Water Services (CWS). 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., Section3.03.4.E of the manual requires a minimum of 50 percent of the noncbuilding rooftop impervious (!Tea 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 ED~PM, the applicant has proposed a pair of vegetative water quality swales. Finding: The vegetation proposed for use in the swales will serve as the primary pollutant removal mechanism for. the stormwater runoff, and will remove suspended soljds and . pollutants through the processes of sedimentation and filtration. Satisfactory pollutant removal will occur only when the vegetation has been fully establisqed. ., Condition: To ensure a fully functioning water quality system and meet objectives of Springfield's MS4 permit, the Springfield Development Cod~ and the EDSPM, the . proposed private vegetative water quality swale s~all be shall be fully vegetated With all vegetation species established prior to approval of a temporary occupancy permit, while Alternatively, is this condition cannot be met, the 'applicant shall provide and maintain additional interim erosion control/water quality nieasures acceptable to the Public Works Department that will suffice until such time as th~ swale vegetation becomes fully established. . . PUBLIC STREETS. SIDEWALKS & IMPROVEMENT ARGEEMENTS I UTILITIES. EASEMENTS AND RIGHTS OF, WAY Finding: Section.32.120 (3) of the Springfield De~elopment 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. Finding: Section 32.120 (5) 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 ~e 14 feet. OTHER PERMITS NOTE: The intent of this list is to give a developer U;sight about requirements related to public improvements before they develop theiiproperty. 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 if the property or portions of the 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 if In-Lieu-of-Assessment charge is applicable. [Ord 5584] PUBLIC INFRASTRUCTURE FEES: It is the responsibility of the private developer to fund the public infrastructure. OTHER CITY PERMITS: 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 $\30 for processing plus applicable fees and deposits] Land & Drainage Alteration Permits (LDAP). [Contact the Springfield Public Works Department @ 726-5849 for appropriate applications/requirements] ADDITIONAL PERMITS/ APPROVALS 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) . Railroad. (If the project crosses a railroad) . Oregon Department of Transportation (If the project is within ODOT jurisdiction) . Division of State Lands (StOrn1 water discharge, wetlands) . Oregon DepartIDent of Environmental Quality (Erosion control (5 acres or greater), pump station, storm water discharge, wetlands) . U.S. Army Corps of Engineers (Storm wate(discharge, wetlands)