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§ 52.012 PROHIBITED DISCHARGES; STORMWATER, SURFACE WATER, GROUNDWATER, COOLING WATER, AND PROCESS WATER.
   (A)   No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, including interior and exterior foundation drains, uncontaminated cooling water, or unpolluted industrial waters to any sanitary sewer.
   (B)   Stormwater and all other unpolluted drainage shall be discharged to the sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the Director of Public Works. Industrial cooling water or unpolluted process water may be discharged, on approval of the Director of Public Works, to a storm sewer, combined sewer, or natural outlet.
(1973 Code, § 3-212) (Ord. 544, passed 11-10-1983) Penalty, see § 52.999
§ 52.013 SPECIAL EQUIPMENT.
   In the event a customer of the City Sewer Department discharges an unusually large amount of waste daily, an unusually large amount of grease or oil, or waste with an unusually high biochemical oxygen demand the Chief Sewer Official may require the customer to install interceptors or other preliminary treatment equipment to reduce the objectionable characteristics of the waste to within the maximum limits as he or she shall prescribe subject to the review of the City Council. All preliminary treatment facilities shall be purchased and maintained continuously in satisfactory and efficient operation at the customer's expense. Nothing herein shall be construed to prohibit a special agreement or arrangement between the City Council and an industrial concern whereby an industrial waste of unusual strength or character may be accepted by the city for treatment subject to additional rental fees or other charges.
(1973 Code, § 3-213)
§ 52.014 MANHOLES.
   Entrance into a manhole or opening for any purpose except by authorized persons is hereby prohibited. It shall be unlawful to deposit or cause to be deposited in any receptacle connected with the sewer system any substance which is not the usual and natural waste carried by the sewer system.
(1973 Code, § 3-214) Penalty, see § 52.999
§ 52.015 LIEN.
   In addition to all other remedies, if a customer shall for any reason remain indebted to the city for sewer service furnished, the amount due, together with any rents and charges in arrears shall be considered a delinquent sewer rent which is hereby declared to be a lien upon the real estate for which the same was furnished. The City Clerk/Treasurer shall notify in writing or cause to be notified in writing, all owners of premises or their agents whenever their tenants or lessees are 60 days or more delinquent in the payment of sewer rent. It shall be the duty of the Director of Public Works on June 1 of each year to report to the City Council a list of all unpaid accounts due for sewer service together with a description of the premise served. The report shall be examined, and if approved by the City Council, shall be certified by the City Clerk/Treasurer to the County Clerk to be collected as a special tax in the manner provided by law.
(Neb. RS 17-925.01) (1973 Code, § 3-215)
§ 52.016 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   BOD (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in milligrams per liter.
   BUILDING DRAIN. The part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, or other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning five feet (one and one-half meters) outside the inner face of the building wall.
   BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal.
   COMBINED SEWER. A sewer receiving both surface runoff and sewage.
   GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing of food, and from the handling, storage, and sale of produce.
   INDUSTRIAL WASTES. The liquid wastes from industrial manufacturing processes, trade, or business as distinct from sanitary sewage.
   NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake, or other body of surface or groundwater.
   NORMAL DOMESTIC WASTEWATER. Wastewater that has a BOD concentration of not more than 250 mg/l and a suspended solids concentration of not more than 250 mg/l.
   OPERATION AND MAINTENANCE. All expenditures during the useful life of the treatment works for materials, labor, utilities, and other items which are necessary for managing and maintaining the sewage works to achieve the capacity and performance for which the works were designed and constructed.
   PERSON. Any individual, firm, company, association, society, corporation, or group.
   pH. The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
   PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking, and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch (one and twenty-seven hundredths centimeters) in any dimension.
   PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights, and is controlled by public authority.
   REPLACEMENT. Expenditures for obtaining and installing equipment, accessories, or appurtenances which are necessary during the useful life of the treatment works to maintain the capacity and performance for which the works were designed and constructed. The term OPERATION AND MAINTENANCE includes replacement.
   RESIDENTIAL CONTRIBUTOR. Any contributor to the city's treatment works whose lot, parcel of real estate, or building is used for domestic dwelling purposes only.
   SANITARY SEWER. A sewer which carries sewage and to which storm, surface, and ground waters are not intentionally admitted.
   SEWAGE. A combination of the water-carried wastes from residences, business buildings, institutions, and industrial establishments together with the ground, surface, and storm waters as may be present.
   SEWAGE TREATMENT PLANT. Any arrangement of devices and structures used for treating sewage.
   SEWAGE WORKS. All facilities for collecting, pumping, treating, and disposing of sewage.
   SEWER. A pipe or conduit for carrying sewage.
   SHALL. Is mandatory; MAY is permissive.
   SLUG. Any discharge of water, sewage, or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than five times the average 24-hour concentration or flows during normal operation.
   SS (SUSPENDED SOLIDS). Solids that either float on the surface of or are in suspension in water, sewage, or other liquids and which are removable by laboratory filtering.
   STORM DRAIN. Sometimes termed STORM SEWER, shall mean a drain or sewer for conveying water, groundwater, subsurface water, or unpolluted water from any source.
   TREATMENT WORKS. Any devices and systems for the storage, treatment, recycling, and reclamation of city sewage, domestic sewage, or liquid industrial wastes. These include intercepting sewers, outfall sewers, sewage collection systems, individual systems, pumping, power, and other equipment and their appurtenances; extensions improvement, remodeling, additions and alterations thereof; elements essential to provide a reliable recycled supply such as standby treatment units and clear well facilities; and any works, including site acquisition of the land that will be an integral part of the treatment process or is used for ultimate disposal of residues resulting from the treatment including land used for the storage of treated wastewater in land treatment systems before land application; or any other method of system for preventing, abating, reducing, storing, treating, separating, or disposing of city waste or industrial waste, including waste in combined storm water and sanitary sewer systems.
   USEFUL LIFE. The estimated period during which a treatment works will be operated.
   USER CHARGE. The portion of the total wastewater service charge which is levied in a proportional and adequate manner for the cost of operation, maintenance, and replacement of the wastewater treatment works.
   WATER METER. A volume measuring and recording device, furnished and/or installed by the city and furnished and/or installed by a user and approved by the city.
   WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1973 Code, § 3-217) (Ord. 543, passed 11-10-1983; Ord. 544, passed 11-10-1983)
§ 52.017 OPERATION, MAINTENANCE, AND REPLACEMENT FUND.
   (A)   It is determined and declared to be necessary and conducive to the protection of the public health, safety, welfare, and convenience of the city to collect charges from all users who contribute wastewater to the city's treatment works. The proceeds of the charges so derived will be used for the purpose of operating and maintaining the public wastewater treatment works.
   (B)   The user charge system shall generate adequate annual revenues to pay costs of annual operation and maintenance including replacement which the city may by ordinance designate to be paid by the user charge system. The portion of the total user charge which is designated for operation and maintenance, including replacement of the treatment works, shall be established by this subchapter.
   (C)   The city will review the charge system at least every two years, and revise user charge rates as necessary to ensure that the system generates adequate revenues to pay the costs of operation and maintenance including replacement and that the system continues to provide for the proportional distribution of operation and maintenance including replacement costs users and user classes.
   (D)   The city will notify each user at least annually, in conjunction with a regular bill, of the rate being charged for operation, maintenance including replacement of the treatment works.
   (E)   The portion of the total user charge collected which is designated for operation and maintenance including replacement purposes as established in § 52.018 shall be deposited in a separate non-lapsing fund known as the Operation, Maintenance, and Replacement Fund and will be kept in two primary accounts as follows:
      (1)   An account designated for the specific purpose of defraying operation and maintenance costs (excluding replacement) of the treatment works (Operation and Maintenance Account); and
      (2)   An account designated for the specific purpose of ensuring replacement needs over the useful life of the treatment works (Replacement Account). Deposits in the Replacement Account shall be made at least annually, the operation, maintenance and replacement revenue in the amount of $1,250 annually.
   (F)   Fiscal year-end balances in the Operation and Maintenance Account and the Replacement Account shall be carried over to the same accounts in the subsequent fiscal year, and shall be used for no other purposes than those designated for these accounts. Monies which have been transferred from other sources to meet temporary shortages in the Operation, Maintenance, and Replacement Fund shall be returned to their respective accounts upon appropriate adjustment of the user charge rates for operation, maintenance, and replacement. The user charge rate(s) shall be adjusted such that the transferred monies will be returned to their respective accounts within the fiscal year following the fiscal year in which the moneys were borrowed.
(1973 Code, § 3-218) (Ord. 543, passed 11-10-1983; Ord. 547, passed 3-8-1984)
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