HomeMy WebLinkAboutComments PWE 1/17/2008
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Memorandum
,City of Springfield
Date:
To:
January 17, 2008
Steve Hopkins, Urban Planner
Jesse Jones, Civil Engineer
DRC2007-0007S,'Maple Elementary School
From:
Subject:
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,
GENERAL
Finding: The subject property is a 9.4 acre parcel located at the south east comer of 21st
Street and 'J' Street (Map 17-03-36-12, Tax Lot #00100), The existing use is an
elementary school. Approval of this proposal would allow construction of a replacement
school on the site and demolition of the existing buildings,
SAmTARYSEWER ,
Finding: 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,
Finding: The applicant has proposed to connect to the existing 8" sanitary sewer line at
the manhole located in 23rd Street, as shown on plan sheet C~I13-M,
Finding: Pursuant to Chapter 3,03.4.A of the City's Engineering Design Standards and
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 by isolating the trash/recycle area as shown on plan sheet C-I13-M.
STORMW ATER MANAGEMENT
Finding: Section 4.3-IIO,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 4,3-11 O,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 4.3-11 O,E of the SDC requires new developments to
employ drainage management practices, which IJlinimi7e the amount and rate of surface
Date Received: 1- 17-08
Planner: SH
water run-off into receiving streams, and which promote water quality,
Finding: To comply with Sections 4,3-llO,D & E, stormwater runoff from the site will
be directed into a series of vegetative swales and filtered catch basins prior to discharge
into the public system, The connections to the public system will be around the perimeter
of the site as shown on sheets C-lll-M through C-ll4-M,
WATER OUALITY
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),
Finding: As required in Section 4.3-ll0,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,"
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),
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
Date Received: 1-17-08
Planner: SH
manual requires a minimum.of 50 percent .of the nQn-building roQftQP imperviQus area .on
a site shall be treated fQr stQrmwater quality improvement using vegetative methQds,
Finding: TQ meet the requirements .of the City's MS4 permit, the Springfield
DevelQpment CQde, and the City's EDSPM, the applicant has proPQsed several
vegetative swales, The planting plan is cQnsistent with the requirements .of the City .of
pQrtland's StQrmwater Management Manual. '
Finding: The vegetatiQn prQPQsed fQr use in the vegetative swales and infiltratiQn basins
will serve as the primary PQllutant remQval mechanism fQr the stQrmwater runQff, and
will remQve suspended SQlids and PQllutants thrQugh the processes .of sedimentatiQn and
filtratiQn, SatisfactQry PQllutant remQval will .occur .only when the vegetatiQn 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 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
UTILITIES. EASEMENTS AND RIGHTS OF WAY
Finding: SectiQn 4.3-\'30,A .of the Springfield DevelQpment CQde requires each
develQpment area tQ be provided with a water system having sufficiently sized mains and
lesser lines tQ furnish adequate supply tQ'the develQpment and sufficient access fQr
maintenance, Springfield Utility BQard cQQrdinates the design .of the water system within
'Springfield city limits,
Finding: SectiQn 4,3-140,A .of the SDC requires applicants proPQsing develQpments
make arrangements with the City and each utility prQvider for the'dedicatiQn .of utility
easements necessary tQ fully service the develQpment .or land beYQnd the develQpment
area,
Finding: The applicant proPQses 7,0' P,U,E, alQng the 21st St. and the J St. frQntage .of
the parcel.
OTHER PERMITS
OTHER
NOTE: The intent .of this list is tQ give a develQper insight abQut requirements related tQ
public improvements befQre they develQP their property,
Date Received: 1-17-08
Planner: SH
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 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/APPROVALS MAY BE NECESSARY:
· Metropolitan Wastewater Management Commission (Pump station, sanitary
sewers 24 inches or larger)
· Lane County Facilities Permit (lfthe project is within Lane County jurisdiction)
· Railroad (lfthe project crosses a railroad)
Date Received: 1- 17-08
Planner: SH
. Oregon Department of Transportation (If the 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)
. V.S, Army Corps of Engineers (Storm water discharge, wetlands)
Date Received: 1-17-08
Planner: SH