13.18.010 Costs—purpose

The purpose of this section shall be to generate sufficient revenue to pay all costs for the operation and maintenance of the complete wastewater system. The costs shall be distributed equitably to all users of the wastewater system. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.350).

13.18.020 Operation cost determination

The City, or its Director of Public Works, shall determine the total annual cost of operation and maintenance of the wastewater system. The total annual cost of operation and maintenance shall include, but need not be limited to, labor, repairs, equipment replacement, maintenance, necessary modifications, power, sampling, laboratory tests, and a reasonable contingency fund. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.400).

13.18.030 Customer classification

The classes of customers shall be residential, commercial, and industrial:

1. A residential customer is a user in a dwelling structure having not more than two living units.
2. A commercial customer is a user discharging primarily segregated domestic wastes or wastes from sanitary conveniences. These wastes must have concentrations equivalent to or less than the wastes from a residential user with respect to suspended solids and five-day twenty degrees centigrade biochemical oxygen demand.
3. An industrial customer is a user discharging any wastes requiring more treatment than wastes from sanitary conveniences. Any waste with a higher concentration than from a residential user with respect to suspended solids and five-day twenty degrees centigrade biochemical oxygen demand is classified as an industrial waste. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.430).

13.18.040 Residential rates

All residential customers of the City water system, discharging sewage into the sewer system, shall be charged a flat rate based upon a winter average for the months of December, January, February and March water meter reads. These fees will change annually in May. The exact rates shall be determined by resolution. (Ord. 2645, 1993; Ord. 2548 (part), 1989, §13.20.440; Ord. 2517 §1 (part), 1988; Ord. 2474 §1 (part), 1987; Ord. 2398 §2, 1985: Ord. 2386 Exh. A (part), 1985).

13.18.050 Commercial rates

1. All commercial customers of the City water system, discharging sewage into the sewer system, shall be charged a fee based upon monthly water meter reads. The exact rates shall be determined by resolution.
2. Commercial customers who choose not to install a separate meter to measure irrigation water and who have landscaped area of living plant material (inclusive of the boulevard area adjacent to their property) equivalent to twenty-five percent of the total square feet of their property area may apply to the City billing department for an averaged sewer rate. Areas covered by materials such as rock, gravel or bark and/or poly sheeting shall not be counted as landscaping. For those commercial customers who request the averaged sewer rate, the total annual volume of all sewage would be charged as a flat rate based upon a winter average for the months of December, January, February and March water meter reads. These fees will change annually in May. The exact rates shall be defined in City resolution.
3. For users having a water service line larger than three-fourths of an inch, the minimum monthly charge will be per City resolution. (Ord. 2645, 1993; Ord. 2548 (part), 1989, §13.20.450; Ord. 2517 §1 (part), 1988; Ord. 2474 §1 (part), 1987; Ord. 2398 §3, 1985; Ord. 2386 Exh. A (part), 1985).

13.18.060 Industrial rates

All industrial customers will be charged the same rates for volume usage as the commercial customers. The industrial users will be charged for the processing of extra strength sewage which the City agrees to accept and treat. Extra strength sewage is any sewage having an excess of two hundred ppm biochemical oxygen demand and/or two hundred fifty ppm suspended solids. The additional charges shall be defined by City resolution. (Ord. 2645, 1993; Ord. 2548 (part), 1989, §13.20.460; Ord. 2517 §1 (part), 1988: Ord. 2474 §1 (part), 1987; Ord. 2398 §4, 1985, Ord. 2386 Exh. A (part), 1985).

13.18.070 Black Eagle and Malmstrom Air Force Base water districts

The charges for the community of Black Eagle and Malmstrom Air Force Base shall be set by City resolution. (Ord. 2645, 1993; Ord. 2548 (part), 1989, §13.20.470; Ord. 2517 §1 (part), 1988; Ord. 2474 §1 (part), 1987; Odd. 2398 §4, 1985; Ord. 2386 Exh. A (part), 1985).

13.18.080 Wastewater discharges--charge basis

Any wastewater discharges into the City sewerage system from a source other than a City water tap shall be added to the sewerage charge based on a test flow for volume monitored by the City. The minimum monthly charge will not be less than three-fourths-inch size for a single-family unit or equivalent commercial use. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.490).

13.18.090 Charge for connection

Charges for connection of service line to sewer line, which does not include installation costs, are per City resolution. If one meter serves one multi-purpose development, either mobile home, local business, commercial, industrial, residential use zones, or variance, the connection charge will be based on the size of the water tap. If there is no water tap, the charges will be based on the sewage being discharged on the same ratio as for other sewer connections. If a tap is replaced and the tap size changed, only the difference in the fee between the existing tap and the new tap size will be charged. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.500 (part)).

13.18.100 Review of service charge

The City shall review the total annual cost of operation and maintenance, the financial plan and cost of service on an annual basis to assure equity of the service charge system established in the chapter. If a significant user, such as an industry, has completed in-plant modifications which could change the user's wastewater charges, the user can present to the City, in writing, such factual information to determine if the charges are to be changed. The City shall notify the user of its findings following action on the request. (Ord. 2645, 1993; Ord. 2386 Exh. A (part), 1985, §13.20.520).