HomeMy WebLinkAboutComments ENC 4/29/2008
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Memorandum
City of Springfield
Subject:
April 29, 2008
Andy Limbird, Urban Planner
Jesse Jones, Civil Engineer
DRC2008-00024 City of Springfield Justice Center (Major Mod)
Date:
To:
From:
1 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 4.3-1 05.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 line located
along the north edge of the development, as shown on plan sheet C2.0.
STORMW ATER MANAGEMENT
Finding: Section 4.3-1 10.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 Pulilic Works
Director, consistent with the Engineering Design Standards and Procedures Manual
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J Finding: Section 4.3-1 lO.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. Jsection 4.3- 1 1 O.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.
j Finding: To comply with Sections 4.3-11O.D & E, storrilwater runoff from the site will
be directed into several vegetative swales and filtered catch basins prior to' discharge into
t1i.e public system. The applicant proposes to connect to the public system,as shown on
sheet C2.0.
WATER UALITY
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 thepolluticin in
urban stormwater to the Maximum Extent Practicable (MEP).
Date Received: pYJPI'
Planner: AL
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Finding: Federal and Oregon Department of Environmental Quality (ODEQ) rules
j'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.
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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.
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, 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).
Finding: As required in Section 4.3-11 O.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).
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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
j Development Code, and the City's EDSPM, the applicant has proposed several
vegetative swales. The planting plan is consistent with the requirements of the
Springfield Development Code. Per SDC 5.17-120, where plants are proposed as part of
the stormwater management system, an Oregon licensed Landscape Architect is required.
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Finding: The vegetation proposed for use in the vegetative swale will serve as the
primary pollutant removal mechanism for the stormwater 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.
DatCl Received: P (Jeff?
Planner: AL
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Condition: To ensure a fuUy 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 fuUy vegetated with aU vegetation species
established prior to issuance ofthe tentative occupancy building permit.
Alternatively, is this condition cannot be met, the applicant shall provide and
maintain additional interim erosion control/water quality measures acceptable to
the Public Works Department that will suffice until such time as the swale
vegetation becomes fully established.
PUBLIC STREETS, SInEW ALKS & IMPROVEMENT AGREEMENTS
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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 ofthe water system within
Springfield citY limits. .
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
V 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 PERMITS.
OTHER
NOTE: The intent of this 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 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
Dat€l f~eceived:-p~
Planner: AL
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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 ifIn-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:
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 applications/requirements]
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)
. Railroad (If the project crosses a railroad)
. Oregon Department of Transportation (lfthe project is within ODOT jurisdiction)
. Division of State Lands (Storm water discharge, wetlands)
. Oregon Department of Environmental 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:_pyl~.f"_
Planner: AL