(A) Generally.
(1) The following schedule of rates shall apply to each user of the sewer treatment system.
(2) This schedule includes the rate for user charges as established herein based on the volume of metered water consumption unless otherwise noted.
(B) Sewer rate schedule.
(1) Zero to 2,0000 gallons: $14; and
(2) All next: prorated at $8.50 per 1,000 gallons.
(C) Determination of service charges.
(1) Sewer rates provided in division (B) above are based on the underlying assumption that all metered water consumption is eventually returned to the sewage treatment works system.
(2) Where it can be evidenced that the proportion of water actually returned to the treatment works system by an individual customer is significantly different from the metered consumption, service charges shall be determined on the basis of measured or estimated wastewater discharge.
(3) The city reserves the right to determine by whatever means and methods it may find practicable, the amount of water consumption and/or wastewater discharge that shall be used to compute sewer service charges.
(D) Surcharge for excessive strength.
(1) Users having a discharge over the normal domestic wastewater of an average biochemical oxygen demand (BOD) content in excess of 250 mg/l, and/or an average suspended solids (SS) content in excess of 250 mg/l, and/or an average ammonia-nitrogen (NH3-N) content in excess of 25 mg/l, the user shall pay a surcharge based upon the excess strength of its wastes as follows.
Surcharge Rates
| |
BOD | $0.25 per pound |
NH3-N | $0.50 per pound |
SS | $0.25 per pound |
(2) The excessive strength surcharge shall be based on the following formula, with the total applied to the monthly bill of affected users.
A (D-250) + B (E-250) + C (F-25) .00834 X G = surcharge permit (at/mo) Where formula components ore as follows: A. Surcharge rate for BOD, in $/pound B. Surcharge rate for SS, in $/pound C. Surcharge rate for NH3-N in $/pound D. User’s average BOD concentration, in mg/l E. User’s average SS concentration, in mg/l F. User’s average NH3-N concentration, in mg/l G. User’s monthly flow to sewage works in 1,000 gallons |
(Ord. 1994-6, passed 1-11-1994; Ord. 2006-04, passed 8-15-2006; Ord. 2021-04, passed 7-20-2021)