(A) Residential equivalent factor. Rates and charges for the use and availability of the system are to be determined through the use of a "residential equivalent factor" ("REF"). For the purposes of this section, one REF is defined as the ratio of the average volume of surface water runoff coming from one acre of land and subjected to a particular use, to the average volume of runoff coming from one acre of land subjected to typical single-family residential use within the city during a standard one-year rainfall event.
(B) Determination of REFs for land uses.
(1) The REFs for the following land uses within the city and the billing classifications for those land uses are as follows.
Listed as Land Uses | REF | Classification |
Single-family and two-family residential | 1.00 | Classification 1 |
(2) Public and private schools and institutional uses, airport, churches, multiple-family residential, commercial and industrial uses, Classification 2, REF according to the chart below.
2 acres or less | REF 2 |
2.1 to 4.99 acres | REF 3 |
5 acres or more | 1 REF/acre of impervious surface, with a minimum of 2 REF |
(C) Other land uses. Other land uses not listed in the foregoing table are to be classified by the City Administrator by assigning them to the classes most nearly like the listed uses, from the standpoint of probable hydrologic response. Appeals from the City Administrator’s determination of the proper classifications may be made to the City Council in the same manner as other appeals from administrative determinations.
(D) Establishing basic rate. In determining charges, the Council may by resolution establish a basic system rate to be charged for each REF. The charge to be made against each parcel of land will then be determined by multiplying the REF for the parcel's land use classification times the basic system rate.
(Prior Code, § 28.2-3) (Ord. 808, passed - -)