A. Class 1 consists of all single-family residential properties, parcels and buildings including all duplexes, outbuildings, appurtenant structures or detached buildings on a single tract where the primary use of the property is residential. Unmetered duplexes in Class 1 shall pay twice the rate as unmetered stand-alone single-family residences. Duplexes with living units served by water meters shall be billed at the standard rate.

B. Class 2 consists of all multifamily residential properties, condominiums, apartments, residence halls, parcels and buildings or portions thereof on a single tract that are not considered Class 1 but where the primary use is residential.

C. Class 3 consists of all commercial and industrial properties, buildings, mixed use developments where separate meters are not provided, and any other non-residential use, such as restaurants, dry cleaners, hotels, laundry facilities, swimming pools or other similar uses, where the strength of the wastewater has a five-day BOD less than 235 mg/L and a TSS less than 270 mg/L.

D. Class 4 consists of all commercial and industrial properties, buildings, mixed use developments where separate meters are not provided, and any other non-residential use, such as restaurants, dry cleaners, hotels, laundry facilities, swimming pools or other similar uses, where the strength of the wastewater has a five-day BOD greater than or equal to 235 mg/L but less than 500 mg/L or a TSS greater than or equal to 270 mg/L, but less than 500 mg/L.

E. Class 5 consists of (1) all significant industrial users (as defined in Chapter 15.14 BMC), (2) all commercial and industrial properties, buildings, mixed use developments where separate meters are not provided, and (3) any other non-residential use, such as restaurants, dry cleaners, hotels, laundry facilities, swimming pools or other similar uses, where the strength of the wastewater has a five-day BOD greater than 500 mg/L or a TSS greater than 500 mg/L.

F. Wholesale service is service provided by a utility service contract outside of city limits for sewer treatment, collection or conveyance. Contracts for wholesale services shall be limited to governmental entities or special purpose districts and shall specify the method of payment, means of measurement and service limitations as may be appropriate. [Ord. 2019-11-032 § 2; Ord. 2012-12-061 § 2; Ord. 10093 § 11, 1990; Ord. 8982 § 40, 1981].