HomeMy WebLinkAboutITEM V-DTo: Planning and Community Development Committee
Mayor
From: Ingrid Gaub, Assistant City Engineer
Memorandum
Engineering Division
CC: Dennis Dowdy, Public Works Director
Dennis Selle, City Engineer
Kevin Snyder, Acting Planning & Development Director
Darcie Hanson, Permits Center Manager
Date: January 20, 2010
Re: Proposed Revisions to the Storm Permit Fee structure related to the
implementation of the NPDES requirements
Please find attached the following documents:
1. An excerpt from the City's current Fee Schedule for Storm Permits
2. The proposed storm permit fee schedule related to NPDES implementation
3. Summary of Minimum Requirements for Stormwater Management
With the implementation of the NPDES Phase 2 permit requirements, effective Feb. 16,
2010, staff is proposing a revision to the current fee structure to address the additional
requirements needed to satisfy the NPDES permit requirements for private
development. A storm permit is issued for all storm improvements on private property
associated with development regardless of whether there is a connection to the City's
storm system or not.
Under the NPDES requirements, the amount of new impervious area and the amount of
area disturbed by a development can trigger widely different requirements for the storm
water quality and quantity for a site. (See the Summary of Minimum Requirements for
Stormwater Management for details). Therefore, staff is proposing a permit with three
levels to allow a lesser fee for those permits that will not require significant effort.
However, for larger developments a sliding scale would be used based on the size of
the development due to the increased amount of requirements.
This proposed fee schedule was discussed at the January 19, 2010 Public Works
Committee meeting and will be discussed at the January 25, 2010 Planning and
Community Development Committee.
Page 1 of 5
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Current Storm Permit Fee Structure:
Storm Drainage Utility
Connection fees are comprised of a Permit Fee and the System Development Charge as follows:
Type
Permit Fee
System Development Charge (SDC)
Single Family Residence & Duplexes (on
Individual Parcels)
$26.00 Per
Parcel*
$1,162.00 per Parcel
Other Parcels
$207.00
$1,162.00 per ESU**
*More than one single-family residence or one duplexes per parcel will be charged at the Other
Parcel rate.
**ESU, Equivalent Service Unit - A configuration of development of impervious surfaces
estimated to contribute an amount of runoff to the City's storm drainage system which is
approximately equal to that created by the average single family residential parcel. One
ESU is considered equal to 2,600 square feet of parcel coverage by impervious surfaces.
When calculating the total SDC, a credit will be applied for the existing impervious area.
Page 2 of 5
Proposed Storm Permit Fee Structure Related to NPDES Ph. 2:
Storm Drainage Utility
Connection fees are comprised of a Permit Fee and the System Development Charge as follows:
SYSTEM DEVELOPMENT CHARGE (SDC)
Type
System Development Charge (SDC)
Single Family Residence & Duplexes (on
Individual Parcels)
$1,162.00 per Parcel
Other Parcels
$1,162.00 per ESU*
*ESU, Equivalent Service Unit - A configuration of development of impervious surfaces
estimated to contribute an amount of runoff to the City's storm drainage system which is
approximately equal to that created by the average single family residential parcel. One
ESU is considered equal to 2,600 square feet of parcel coverage by impervious surfaces.
Per ACC 13.48.010.
When calculating the total SDC, a credit will be applied for the existing impervious area (New total
SDC minus calculated SDC for existing impervious area using the new definition of impervious
surface as given in ACC 13.41.010).
STORM PERMIT FEE
Permit Level**
Permit Fee
Level 1
$210.00
Level 2
$400.00
Level 3
Base Fee + the Cumulative Additional Fees as indicated below:
• Base Fee = $1,440.00 for up to 10,000 SF of disturbed area
• Cumulative Additional Fee #1 = Base Fee + $400.00 for 10,001 SF
up to 43,560 SF (1 Acre) of disturbed area
• Cumulative Additional Fee #2 = Cumulative Additional Fee #1 +
$100.00 per Acre for each additional disturbed Acre over 1 Acre
**Permit levels are determined as follows:
Level 1 permits are for all projects that
• are not located in a Critical Area and
• add or replace less than 2,000 square feet of impervious surface area; and/or
• disturb less than 7,000 square feet of land.
Level 2 permits are for all projects that:
• add or replace 2,000 to 4,999 square feet of impervious surface area; or
• disturb 7,000 square feet or more of land.
Level 3 permits are for all projects that:
• add 5,000 square feet or more of impervious surface area, or
• convert 3/ acres or more of native vegetation to lawn/landscaped area, or
• convert 2.5 acres or more of native vegetation to pasture, or
• the new plus replaced impervious surface area is 5,000 square feet or more and
the value of improvements exceeds 50% of the assessed value of existing
improvements.
Page 3 of 5
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Summary of Minimum Requirements for Stormwater Management (Cont.)
12 Elements of Construction Stormwater Pollution Prevention
1. Mark the clearing limits
2. Establish construction access
3. Control flow rates
4. Install sediment controls
5. Stabilize soils
6. Protect slopes
Protect drain inlets
8. Stabilize channels and outlets
9. Control pollutants
10. Control de-watering
11. Maintain BMPs
12. Manage the project
Construction Stormwater Pollution Prevention Plan (SWPPP) Requirements
Project
SWPPP
Not in a Critical Area and
No written construction stormwater pollution
• adds less than 2,000 square feet of
prevention plan required
impervious surface or
• disturbs less than 7,000 square feet of
land
In a Critical Area and
May use SWPPP short form
• adds less than 2,000 square feet of
(see SWMM Vol. 1 Appendix C)
impervious surface or
• disturbs less than 7,000 square feet of
land
• adds between 2,000 and 5,000 square
May use SWPPP short form
feet of impervious surface or
(see SWMM Vol. 1 Appendix C)
• disturbs between 7,000 square feet
and 1 acre of land
• adds or replaces more than 5,000
A complete SWPPP is required
square feet of impervious surface or
(see SWMM Vol. 1 chapter 2)
• disturb more that 1 acre of land
• or grade or fill greater than 500 cubic
yards of material
Page 5 of 5