HomeMy WebLinkAboutComments PWE 5/13/2008
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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.
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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). '
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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.
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Date Received:
Planner: AL
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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.
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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.
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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.
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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.
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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.
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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
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vegetation becomes fully established.
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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).
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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." ,
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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
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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
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Planner: AL
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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