Application for a Service Charge Adjustment – City of Bainbridge Island – Public Works
Decks: As long as a deck allows rain water to pass through it, to be readily absorbed by the ground below, it does not
need to be included as impervious surface. As soon as the ground under the deck is covered with an impervious
material, such as plastic sheeting or concrete for example, the deck would then be counted as impervious area. The
use of a pervious ‘weed block’ type of matte would allow the deck to remain excluded from calculations. Of course, if a
roof is erected over the deck, the roof area, out to the eaves, is impervious area.
Buildings or structures: Include all square footage of all roofed areas, including covered porches.
Driveways and Parking: Include all surfaces, including: gravel, asphalt, or concrete. Indicate type and sf of each surface.
Other: Include sport courts, swimming pools, or any other unroofed surface that sheds water.
“Low intensity development” means any development, excluding single-family, which creates or has existing impervious
surfaces that cover less than 15 percent of the parcel.
Attach the following to complete your application:
1. Maintenance Records
2. Engineered Drainage Report, Stormwater Schematic or Civil Plan.
The Application must be filed by November 15
, prior to the year in which the reduction will be applied.
Reduction shall not reduce the total fee for the property to less than 50 percent of the monthly fee calculated
for the impervious surface areas.
In order for Public Works to review the application and additional supporting information, the application must
be signed by:
● Property/parcel owner; or
● Person holding a written power of attorney from the property owner
Note: Reduction in Stormwater Fees can be revoked or denied if proper stormwater facility maintenance has
not been performed and documented. See COBI Private Stormwater Maintenance Program web page at:
Present this Application in Person or Mail the Application and Supporting Documents to:
City of Bainbridge Island
Attention: NPDES Permit Coordinator
280 Madison Avenue North
Bainbridge Island, WA 98110-1812
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