[1]
Editor's Note: Copies of Appendix A, B, and C referred to herein can be found on file in the office of the city auditor.
[Ord. No. 594, § 1, 5-11-1982]
The purpose of this article 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 to all users of the wastewater system in proportion to each user's contribution to the total loading of the treatment works. Factors such as strength (BOD and SS), volume and delivery flow rate characteristics shall be considered and included as the basis for the user's contribution to ensure a proportional distribution of operation and maintenance costs to each user (or user class).
[Ord. No. 594, § 2, 5-11-1982]
The city or its city engineer shall determine the total annual costs of operation and maintenance of the wastewater system which are necessary to maintain the capacity and performance, during the service life of the treatment works, for which such works were designed and constructed. 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. No. 594, § 3, 5-11-1982]
The city or its city engineer shall determine each user's average daily volume of wastewater which has been discharged to the wastewater system, which shall then be divided by the average daily volume of all wastewater discharged to the wastewater system, to determine each user's volume contribution percentage. The amount used as the total average daily volume of wastewater shall exclude infiltration and inflow. The city or its city engineer shall determine each user's average daily poundage of five-day 20° C. bio-chemical oxygen demand (DOB) which has been discharged by the average daily poundage of all five-day BOD discharged to the wastewater system to determine each user's BOD contribution percentage.
The city or its city engineer shall determine each user's average suspended solids (SS) poundage which has been discharged to the wastewater system which shall then be divided by the average daily poundage of all suspended solids discharged to the wastewater system, to determine the user's suspended solids contribution percentage. Each user volume contribution percentage, BOD contribution percentage and suspended solids contribution percentage shall be multiplied by the annual operation and maintenance costs for wastewater treatment of the total volume flow, of the total five-day 20° C. BOD and of the suspended solids, respectively.
[Ord. No. 594, § 4, 5-11-1982]
The City or its city engineer will determine the average suspended solids (SS) and biochemical oxygen demand (BOD) daily loadings for the average residential user. The city or its city engineer will assess a surcharge rate for all nonresidential users discharging wastes with BOD and SS strengths greater than the average residential user. Such users will be assessed a surcharge sufficient to cover the costs of treating such users' above-normal strength wastes. Normal strength wastes are considered to be 200 p.p.m. BOD and 250 p.p.m. SS. The surcharge rate structure for such above-normal strength waste dischargers is attached. (Appendix A, adopted herein by reference.)
[Ord. No. 594, § 5, 5-11-1982]
Each nonresidential user's wastewater treatment cost contribution as determined in sections 17-100 and 17-101 shall be added together to determine such user's annual wastewater service charge. Residential users may be considered to be one class of user and an equitable service charge may be determined for each user based upon an estimate of the total wastewater contribution of this class of user. The governing body may classify industrial, commercial and other nonresidential establishments as a residential user, provided that the wastes from these establishments are equivalent to the wastes from the average residential user with respect to volume, suspended solids and BOD. Each user's wastewater treatment cost contribution will be assessed in accordance with the attached rate schedule. (Appendix B, adopted herein by reference.)
[Ord. No. 594, § 6, 5-11-1982]
The city shall submit an annual statement to the user for the user's annual wastewater service charge or 1/12 of the user's annual wastewater service charge may be included with the monthly water and/or wastewater utility billing. The city shall add a penalty of 1 1/2% per month if the payment is not received by the city within 15 days. Should any user fail to pay the user wastewater service charge and penalty within three months of the due date, the city may stop the wastewater service to the property.
[Ord. No. 594, § 7, 5-11-1982]
The city shall review the total annual cost of operation and maintenance, as well as each user's wastewater contribution percentage not less often than every two years and will revise the system as necessary to assure equity of the service charge system established herein and to assure that sufficient funds are obtained to adequately operate and maintain the wastewater treatment works. If a significant user, such as an industry, has completed in-plant modifications which would change that user's wastewater contribution percentage, the user can present at a regularly scheduled meeting of the governing body, such factual information and the city shall then determine if the user's wastewater contribution percentage is to be changed. The city shall notify the user of its findings as soon as possible.
[Ord. No. 594, § 8, 5-11-1982]
Each user will be notified, at least annually, in conjunction with a regular bill, of the rate and that portion of the user charges which are attributable to wastewater treatment services.
[Ord. No. 594, § 9, 5-11-1982]
The discharge of any waters containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to contaminate the sludge of any municipal system or to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in or have an adverse effect on the waters receiving any discharge from the treatment is hereby prohibited. Article V of this chapter contains additional requirements covering the use of the city's public sewers.
[Ord. No. 594, § 10, 5-11-1982]
No person shall make connection of roof downspouts, exterior foundation drains, areaway drains or other sources of surface runoff or groundwater to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer.
[Ord. No. 594, § 11, 5-11-1982]
The size, slope, alignment, materials of construction of all sanitary sewers and sewer connections, and the methods to be used in excavating, placing of the pipe, jointing, testing and backfilling the trench, shall all conform to the requirements of the building and plumbing code or other applicable rules and regulations to the city and the state. In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the A.S.T.M. and W.P.C.F. Manual of Practice No. 9 shall apply.