HomeMy WebLinkAboutComments PWE 6/15/2009
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Memorandum
City of Springfield
Date:
To:
From:
Subject:
June 16,2009
Andy Limbird, Planner
Clayton McEachern, Civil Engineer
DRC 2009-00017 Chan Commercial Building 1815 Main St
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.
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SANITARY SEWER
Finding: Section 4.3-l05.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.
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STORMW ATER MANAGEMENT
Finding: Section 4.3-ll0.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-llO.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.
Finding: Section 4.3-11 O.E of the SDC requires new developments to employ drainage
j management practices, which minimize the amount and rate of surface water run-off into
receiving streams, and which promote water quality.
WATEROUALITY
Finding: Under Federal regulation of the Clean Water Act (CW A), Endangered Species
j 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).
j 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.
Date r'<0ceived: 0~/~7
Planner: AL
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Finding: Minimum Control Measure 5 requires the City of Springfield to develop,
j 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.
j 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 4.3-1 i 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."
Finding: Section 3.02 of the City's EDSPM states the Public Works Department will
j 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 ofthe City's EDSPM states all public and private development
and redevelopment projects shall employ a system of one or more post-developed BMPs
j 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
Development Code, and the City's-EDSPM, the applicant has proposed two private
vegetative water quality swales with a planting plan.
Finding: The vegetation proposed for use in the swales will serve as the primary pollutant
J 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.
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Condition: Prior to Final Plat approval, the applicant shall add a note to the grading plan
and the landscape plan that the vegetated swale areas will be scarified/roto-tilled to remove
any compaction of the soil prior to planting of the swale(s).
j 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 private vegetative water quality swale shall be fully vegetated with all
Date !1eCeived:-0~/~,1
Planner: .AL
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vegetation species established prior to approval of Final Plat. Alternatively, if this
condition cannot be met, the applicant shall provide and maintain additional interim
erosion controllwater quality measures acceptable to the Public Works Department that
will suffice until such time as the swale vegetation becomes fully established.
UTILITIES. EASEMENTS AND RIGHTS OF WAY
) 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
shall be 7 feet. The minimum width for all other public utility easements shall be 7 feet.
j Condition: The applicant will provide 7 foot public utility easements along the frontage
of Main Street, satisfying Section 4.3-140.A of the SDC. The proposed vegetated swale
that is in this area is an acceptable use within the easement.
OTHER
Finding: The City of Springfield Building Department has reviewed the plans and
Jidentified potential problem areas with the grading plan as submitted. The submitted
plans still show 1-2' offill against an existing retaining wall and existing convenience
store. This fill will be supporting a building and required parking for the proposyd use.
Condition: The applicant will need to supply fully engineered plans for the building arid
yretaining wall to proceed with the current grading plan. City staff has reviewed the
grading plan and has identified potential alternatives to the proposed plan that may
eliminate this condition if adopted by the client.
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
or phase of the development.
PUBLIC INFRASTRUCTURE FEES:
It is the responsibility of the private developer to fund the public infrastructure.
Date Received:
Planner: AL
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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:
. Oregon Department of Transportation (If the project is within ODOT jurisdiction)
Date f'{0ceived:
Planner: AL
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