§ 50.055 SERVICE CHARGE; SURCHARGE.
   (A)   For the purpose of this section the following definitions shall apply unless the context clearly indicates or requires a different meaning.
      B.O.D. (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matters as determined by approved laboratory procedures.
      BUILDING DRAIN. The part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the walls of a building and conveys it to the building sewer beginning three feet outside the building wall.
      BUILDING SEWER. The extension from the building drain to the public sewer or other places of disposal.
      CITY. The City of Hillsboro, Ohio acting through its duly authorized officials and employees.
      COMBINED SEWER. The extension from the building drain to the public sewer or other places of disposal.
      COMMERCIAL. Retail or wholesale business establishments that discharge wastewater into the public wastewater treatment system, works and facility.
      DOMESTIC/NORMAL SEWAGE. Sewage which when analyzed shows by weight a daily average of not more than 300 parts per million of suspended solids, and not more than 250 parts per million of B.O.D.
      FOUNDATION DRAINS. Subsurface drains laid around the foundation of a building, either within or outside the building foundation, for the purpose of carrying ground or subsurface water to some point of disposal.
      GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing of food and from the commercial handling, storage, and sale of produce.
      INDUSTRIAL. Includes users discharging waste resulting from manufacturing activities involving the mechanical for chemical transformation of materials or substance into other products. These activities occur in establishments usually described as plants, factories, or mills and characteristically use power-driven machines and material-handling equipment.
      INDUSTRIAL WASTES. Waste resulting from manufacturing activities involving the mechanical or chemical transformation of materials or substances into other products. These activities occur in establishments, usually described as plants, factories, mills, characteristically use power-driven machines and materials-handling equipment.
      INSTITUTIONAL/GOVERNMENTAL. Hospitals, nursing homes, schools, city, county, state and federal buildings or facilities that discharge wastewater into the public wastewater treatment system, works and facility.
      MAY. Is permissive.
      NATURAL OUTLET. Outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake, or other body of surface or groundwater.
      NPDES or NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT. Means the same as such is defined in 40 C.F.R. Part 125, and in § 402 of the Clean Water Act, being 33 U.S.C. § 1342.
      NONSANITARY FLOW. Stormwater originating from downspouts, storm, and groundwater drains, and foundation drains.
      NORMAL DOMESTIC SEWAGE. Wastewater collected from dwelling units, commercial and institutional buildings. It consists primarily of spent water from building water supply to which have been added waste materials from bathroom, kitchen, and laundry.
      PERSON. Any individual, firm, company, association, society, corporation, or group.
      PUBLIC SEWER. Any sewer owned by the city, including storm, sanitary, or combined sewers.
      RESIDENTIAL. A principal family residence or habitation classified as a single-family, multi-family, or apartment dwelling, that discharges domestic sanitary wastewater having characteristics of 250 milligrams per liter biochemical oxygen demand and 200 milligrams per liter suspended solids into the public wastewater treatment system, works and facility.
      SANITARY SEWER. A sewer which carries sanitary and industrial wastes, and to which storm, surface, and groundwater are not intentionally admitted.
      SEWAGE. The combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions, including polluted cooling water.
      SEWAGE SYSTEM. The structures, equipment, and process required to collect, transport, and treat domestic and industrial wastes and dispose of the effluent and accumulated residual solids, and shall be synonymous with WASTEWATER TREATMENT SYSTEM.
      SHALL. Is mandatory.
      SLUG. Any discharge of water or wastewater 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 hours concentration of flows during normal operation.
      STORM SEWER. A pipe or conduit designed for the purpose of carrying storm, surface, cooling, and drainage water from the point of origin to some point of disposal, but which is not intended to carry domestic or industrial sewage.
      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.
      USER. Any person who discharges, causes, or permits the discharge of wastewater into the wastewater treatment system.
      WASTEWATER. The liquid and water-carried waste from dwellings, commercial buildings, industrial facilities, and institutions, together with any groundwater, surface water, or stormwater that may be present, whether treated or untreated system.
      WASTEWATER TREATMENT SYSTEM. The structures, equipment, and process required to collect, transport, and treat domestic and industrial wastes and dispose of the effluent and accumulated residual solids, and shall be synonymous with SEWAGE SYSTEM.
   (B)   The service charge on all industrial wastes discharged to the sewage system for sewage treatment service by the city shall be the charge specified in § 50.040. In addition, all industrial users shall pay all applicable surcharges as stated and defined in this section and follow any NPDES permit issued by the OEPA.
   (C)   Sewage or industrial wastes above normal sewage strength but acceptable for discharge into the sanitary sewerage system shall be subject to a surcharge. The surcharge shall be determined on the basis of either or both of the two following constituents of the water or wastes:
      (1)   Total suspended solids; and/or
      (2)   Five day B.O.D. at 20°C and as herein provided.
   (D)   When either or both the total suspended solids and the B.O.D. of a water or waste accepted for admission to the system exceeds the values of these constituents for normal sewage, the excess concentration in either or both as the case may be, shall be subject to a surcharge as follows:
      (1)   Pounds of excess suspended solids per day x $0.09/lb. = s.s. surcharge; and
      (2)   Pounds of excess B.O.D. per day x $.07/lb. = B.O.D. surcharge.
   (E)   In addition to the surcharge, the user will pay the sewer service charge as specified in division (B) of this section on the entire volume of sewage discharged to the sewerage system.
   (F)   The pounds of B.O.D. per day or pounds of suspended solids per day, above the concentrations described in this section, for normal strength sewage that are discharged to the sewerage system shall be determined by the city or its authorized representative.
   (G)   Authorized city employees bearing proper credentials and identification shall be permitted to enter upon all properties for the purpose of inspection, observation, measurement, sampling, and testing of the wastewater in accordance with the provisions of §§ 50.055 through 50.059. They shall have no authority to inquire into any processes beyond that point having a direct bearing on the nature and source of wastewaters and their volume and points of entry into the municipal wastewater collection systems. They shall observe all safety regulations which are applicable to the premises.
   (H)   Each industrial user shall file discharge reports and strength analysis reports with the Safety and Service Director and to any other regulatory agency (OEPA).
      (1)   Discharge report. The information on the discharge report shall be current information, and whenever the user’s process changes the information shall be revised. The information to be submitted in January of each year shall be as follows:
         (a)   Name, address, and standard industrial classification number of user;
         (b)   Site plan showing size, elevation, and location of all connections to public sanitary sewers;
         (c)   General description of inspection and sampling facilities;
         (d)   Description of inspection and sampling facilities;
         (e)   Description of pretreatment facilities; and
         (f)   Explanation of all surcharges of strengths and flow rates.
      (2)   Strength and analysis report. The information to be submitted by the fifteenth of each month following the test month on each strength analysis report shall be as follows:
         (a)   Name and address of user;
         (b)   Date and time the sample was collected; and
         (c)   Results of laboratory analysis in milligrams per liter of the strength of B.O.D., and suspended solids in the user’s discharge to sanitary sewers. The analysis shall be in accordance with the requirements of § 50.080(C).
   (I)   One 24-hour composite sample shall be collected and analyzed weekly. If the strength of discharge is inconsistent, additional tests may be required to establish the mass emission rate, including, but not limited to, the requirement of use of a composite sampler.
   (J)   The average strengths, in milligram per liter, of B.O.D. and suspended solids for each strength surcharge billing period shall be determined from the information submitted in the strength analysis reports for samples collected during the billing period in question.
   (K)   The city shall periodically collect and test samples of the discharge. If the information is substantially different from that on the strength analysis reports, the values obtained from such city collected samples may be used to determine surcharge strengths in place of the values in the strength analysis reports.
(1982 Code, § 50.30) (Ord. 1974-26, passed 10-10-1974; Ord. 1989-12, passed 6-5-1989; Ord. 1992-15, passed 11-2-1992; Ord. 1993-3, passed 1-4-1993; Ord. 1993-9, passed 8-2-1993; Ord. 2004-10, passed 6-7-2004; Ord. 2013-2, passed 2-11-2013) Penalty, see § 50.999