(1) Establishment. The equivalent residential unit (ERU) is hereby established for purposes of calculating the stormwater user’s fee.

The ERU is the approximate average square footage of impervious surface area on a single-family residential parcel.

(2) Setting the ERU. The ERU shall be set by the City Council from time to time by ordinance. The ERU is hereby set as 3,500 square feet. This value was determined through the measurement of impervious surface on a random sampling (average) of single-family residential parcels.

(3) Source of ERU. The impervious surface area of developed property shall be determined through property tax assessor’s rolls or site examination, mapping information, aerial photographs, and other reliable information.

(4) Minimum Service Charge. Unless otherwise waived, the minimum charge for a developed property shall be based on 1.0 ERU. (Ord. 09-2 §10, 2009).