11-15-2019 Ord - Amending Title 19Proposed Ordinance Amending Title 19 of the FWRC to add Surface and Stormwater System Development Charges (SDCs)
Public Works Department
Surface Water Management Division
(presentation by Theresa Thurlow)
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Policy Question
Should City Council adopt a proposed ORDINANCE adding a new chapter to Title 19 FWRC relating to the assessment of
Surface and Stormwater Utility
System Development Charges (SDCs)?
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SWM Utility - What is it?
Storm and Surface Water (SWM) Utility authorized by Chapter 35.67 RCW
Established by City Federal Way Ordinance 90-32
Services
Flood reduction and control
Drainage system
Regional ponds
Clean Water Act Compliance
NPDES Permit
Water Quality
Habitat Conservation and Restoration
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Similar to sewer service, water service, power service, SWM Utility is a service to the residents of Federal Way. When established in 1990 the Service was to remove rainfall runoff
and reduce/prevent flooding.
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Drainage system – transports rainfall runoff from roads/structures to local waterways
Drainage system installed initially to reduce/prevent flooding
of pipes, catchbasins, ponds, vaults, and other structures that carry water from the street to nearby waterways.
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Impervious Surfaces affect System Capacity
For instance, the downtown core has pipes ~72” diameter, although most of the City is 18 to 36”
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Development creates more Impervious Surfaces
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2007
2017
Example of impacts to impervious surfaces. Picture on the left is 2007, picture on the right is 2017
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System Development Charge
One-time fee paid at the time of development / redevelopment
Provides equity between existing and new customers
Provide a source of capital funding as growth occurs
Equitable distribution of costs associated with a growing demand on the City’s SW system
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How an SDC would be applied
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How ESU works
1 unit = 3200 sf
13.75 ESUs
SDC = $13,489
Assume this property wants to add another building and expand it’s parking lot. If they increase the hard surfaces as shown, their SDC would be $15,441
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Comparison of 2019 SWM SDC Charges in the Region
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$981/ESU
$1,703/ESU
$1,320/ESU
$1,342/ESU
$1,787/ESU
Even after the 2021 rate increase we will be below most of the region’s SWM Charges. Renton !900/flat rate; Fed Way $1123/ESU; Des Moines $1703/ESU; Auburn $1320/ESU; Redmond $1342/ESU;
Kent $1787/ESU.
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Capacity changes impact SWM Rate Payers without an SDC
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An example of stormwater construction costs:
Open Cut
18”- 36” Pipe Installation Costs
~ 20 linear feet averages $15,000
Multiply that by all SWM has
Approximately 23 square miles of land
5 miles of marine shoreline
6 major streams
6 significant wetlands
13 lakes the function as part of system
228 miles of pipe
12,536 catch basins
441 detention and water quality facilities
Dry ponds
Wet ponds
Bioswales
Underground vaults
Filtera units
Modular wetlands
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Timeline
Consultant Study – July 2018 to December 2019
Notice of Planning Commission Public Hearing – September 27, 2019
Planning Commission staff report and discussions – October 2, 2019
SEPA – Non-project action determined to be exempt under WAC 197-11-800-19(b)
Planning Commission Public Hearing – October 16, 2019
Planning Commission Public Hearing Continued – October 30, 2019
Decision to recommend adoption
Land Use/Transportation Committee Public Meeting – November 4, 2019
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Timeline continued
21 Day Appeal Period Ends – November 6, 2019
City Council Public Meeting 1st Reading of Ordinance – November 19, 2019
City Council Public Meeting 2nd Reading of Ordinance – December 3, 2019
Notice in Newspaper – December 6, 2019
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OPTIONS
Forward the proposed ordinance to the December 3, 2019 City Council Meeting for second reading and enactment.
Do not forward the proposed ordinance and provide direction to Staff.
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Mayor’s Recommendation
The Mayor recommends Option 1.
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