Chapter 4.06
MAINTENANCE AND OPERATION OF STORM WATER DRAINAGE

Sections:

4.06.010    Definitions.

4.06.020    User Surcharge for Connection to Public Drainage System.

4.06.030    Computation of Surcharge.

4.06.040    Disconnection.

4.06.050    Repealed.

4.06.010 Definitions.

The following definitions apply to sections 4.06.010 through 4.07.090 of this code:

A. Connect or Connection. The act of causing or allowing impervious surfaces or other storm and surface water drainage facilities on private property to drain directly or indirectly to the public storm and surface water drainage system including open channels, creeks and rivers.

B. Equivalent Dwelling Unit (EDU). A unit of measurement of impervious surface area that is equivalent to the average such area for property improved with a single family dwelling as determined by the Unified Sewerage Agency of Washington County, namely, 2640 square feet.

C. Impervious Surface Area. Land area altered from its natural state so as not to allow infiltration and retention of water equivalent to undisturbed soil and improvements lying over that land area, including but not limited to pavement, structures, decks and compacted gravel but not including any area lying within public right-of-way or railroad trackage.

D. User. The legal owner (as shown by property tax records) or the purchaser under land sale contract of unoccupied property or the occupant of property that is occupied. [BC 4.06.010, added by Ordinance No. 3687, 7/17/89; BC 4.06.010(e), amended by Ordinance No. 3758, 11/19/90; BC 4.06.010 amended by Ordinance No. 3933, 6/26/95]

4.06.020 User Surcharge for Connection to Public Drainage System.

A user of property connected to the public storm drainage system shall pay a monthly surcharge determined by the Council to be an equitable share of the city’s actual cost of operating and maintaining the system. The surcharge shall be in addition to and not in lieu of any similar charge imposed by any other public entity for operation and maintenance of a similar system [BC 4.06.020, added by Ordinance No. 3687, 7/17/89; BC 4.06.020 amended by Ordinance No. 3933, 6/26/95]

4.06.030 Computation of Surcharge.

The user surcharge for public storm drainage shall be $2/month/EDU. Effective February 1, 2008 and on February 1 of each calendar year thereafter, the charge shall be adjusted to reflect annual inflation in the cost to construct storm drainage facilities as is shown in the construction cost index for Seattle, Washington, published in the ENR Engineering News-Record in January of each year. Measurement of EDU as to property other than improved single family dwellings shall be according to the method employed by the Unified Sewerage Agency of Washington County and shall be rounded to the nearest whole number. [BC 4.06.030, added by Ordinance No. 3687, 7/17/89; BC 4.06.030 amended by Ordinance No. 3933, 6/26/95; Ordinance No. 3986, 7/15/97; Ordinance No. 4371, 11/7/05]

4.06.040 Disconnection.

An owner or purchaser under land sale contract of property may apply to disconnect the property from the public drainage system by submitting proof satisfactory to the City Engineer that:

A. All impervious surface area of the property has been demolished and removed; or,

B. There exists on the property a storm and surface water retention and infiltration system designed and operated so as to dispose of all such water in any foreseeable storm event without use of the public drainage system. By its application the owner or purchaser shall be deemed to have given consent to the city’s entry onto the property to verify the matters stated in the application. Disconnection shall not be effective to allow the user of the property to avoid the charge unless and until the City Engineer confirms in writing that the disconnection meets the criteria of this section. [BC 4.06.040, added by Ordinance No 3687, 7/17/89; amended by Ordinance No. 3758, 11/19/90; Ordinance No. 3933, 6/26/95]

4.06.050 Repealed.

[BC 4.06.050, repealed by Ordinance No. 3986, 7/15/97]