§ 51.178 RATES; DETERMINATION.
   (A)   Usage. The customers and customers of the city-owned public sewer shall be charged per 1,000 gallons or portion thereof as set by resolution.
   (B)   Service charge. Sewer customers of the city shall continue to pay a monthly service charge in addition to the sewer rates as set forth in division (A) above in the amount as set by resolution.
      (1)   For residential customers, the charge from the sewer rate table shall be based on the average water usage for that property for the three months during the preceding winter. Until consumptive history is properly established for previously unoccupied residential properties, or if metering does allow establishment of usage of individual residences and unmetered properties, the monthly charge shall be the average charge of all other residential customers per month.
      (2)   Commercial and industrial establishments that discharge wastewater with an average daily five-day biochemical oxygen demand (BOD) not exceeding 250 mg/l or average daily total suspended solids (TSS) not exceeding 250 mg/l shall be charged per the sewer rate table.
   (C)   Surcharge rate.
      (1)   If the concentration of wastes from any user exceeds 250 mg/l of BOD, 250 mg/l of TSS or 100 mg/l of grease, the customer shall be subject to a surcharge. The charge shall be at the rate as set by resolution.
      (2)   If any customer discharges wastes which are in violation of the sewer use ordinance including sludge loads or incompatible wastes, said user will be subject to a surcharge rate of up to twice the surcharge rates. The enforcement of this surcharge clause shall be at the discretion of the city.
   (D)   Rate determination; penalty. Any customer discharging toxic pollutants into the system shall pay for such increased costs of managing the effluent or sludge by the wastewater treatment facility.
      (1)   Charges shall be as deemed necessary by the city to recover the increased costs.
      (2)   For the purpose of determining the proper sewer charge for each customer, the following shall be considered.
         (a)   For the use of the city sanitary sewage system, each customer shall pay a charge which shall be computed and based upon that customer’s contribution of sewage to such system.
         (b)   The contribution of sewage from a commercial use shall be considered equal to the amount of water consumed as shown by the current water billing, plus any water used from other than the municipal water system as estimated or determined as provided by this section.
         (c)   Commercial customers without municipal water service or using additional water from other than municipal water service shall be charged based on the amount of contribution to the sewer system. This shall be determined by a sewage flow meter or a water meter on the private well. The sewage flow meter or water meter shall be installed and maintained by the customer.
         (d)   Commercial customers without water meters or sewage flow meters shall be billed as follows: Car washes; grocery stores; radiator shops; restaurants; manufacturing plants; and bars shall be charged the average of all commercial customers. Other commercial accounts without water meters and sewage flow meters shall be charged the average residential rate.
         (e)   A commercial customer who, because of extensive lawn watering or loss of water in the establishment due to evaporation or use in the product and desiring separate water and sewer usage quantities shall, at the customer’s expense, install and maintain a sewage flow meter or separate water meters.
         (f)   Property owners will be required to install and maintain all service lines from the main to the building.
         (g)   In the case of a commercial customer and a residential customer occupying a single building and using the same water meter, the sewer charge shall be based on the commercial customer rate.
         (h)   The service charge for all customers shall be based on the number of water meters in each establishment.
         (i)   There shall be a charge to dispose septic tank or portable toilet waste at the wastewater treatment facility at a per gallon rate as set by resolution.
(Prior Code, § 51.178)