Surface Water Management (Title 13) | Environment & Sustainability
5. Rate adjustments and appeals
b. The rates and service charges shall be based on the service provided and the relative contribution of stormwater runoff from a given parcel to the
a. Any person billed for service charges may file a request for rate adjustment with the division within three years of the date from which the bill was sent. However, filing of such a request does not extend the period for payment of the charge. b. Requests for rate adjustment may be granted or approved by the director only when one of the following conditions exists: i. The parcel is owned and is the personal residence of a person or persons determined by the City as qualified for a low income senior citizen property tax exemption authorized under RCW 84.36.381. Parcels qualifying under this subsection 3.a. shall be exempt from all charges imposed in this chapter; ii. The actual impervious surface coverage of the parcel charges is in error; iii. Non-single-family residential parcel is served by one or more flow control or water quality treatment facilities required under SDC 21.03.050D., or can be demonstrated by the property owner to provide flow control or water quality treatment of surface and stormwater to the standards in SDC 21.03.050D., and any such facility is maintained at the expense of the parcel owner to the standards required by the department. In addition to the previous requirement, any source control best management practices applicable to the facilities or activities occurring on the parcel must be implemented
stormwater control facilities. The estimated or measured impervious surface area will be used to determine the relative contribution of stormwater runoff from the parcel.
c. Service charges shall be determined as follows:
i. Undeveloped Parcels. Undeveloped parcels shall not be charged.
ii. Roads. Roads shall not be charged.
iii. Single-Family Residences. The monthly service charge for each single-family residence shall be the unit rate for one equivalent service unit. iv. Other Developed Parcels. The monthly service charge for all other developed parcels, including publicly owned properties, shall be computed by multiplying the unit rate times the number of equivalent service units applicable to the parcel less any approved rate adjustment for the parcel as determined under SDC 21.03.050E.5. v. Minimum Charge. There shall be a minimum monthly service charge for all developed properties equal to the unit rate. vi. Equivalent Service Unit. For the purpose of computation of non-single-family residential service charges, the number of equivalent service units shall be rounded to the nearest tenth (0.10).
Effective | January 1, 2022 Revisions | June 29, 2022
Title 21: Sammamish Development Code | 155
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