(a) Normal Concentrations of Wastes.
(1) Charges for waste treatment pursuant to Section 927.05(c) shall apply to wastes not exceeding normal concentrations as follows:
A. BOD - 260 milligrams per liter;
B. Suspended solids - 260 milligrams per liter;
C. Phosphorus - 7 milligrams per liter.
(2) Applicable concentrations shall be based on average concentrations, weighted in proportion to volume of flow, determined during each billing period by the most practicable method possible. Should the average concentration of any constituent exceed the normal concentration provided in this section, a user charge - extra strength surcharge shall be collected by the City as subsequently outlined in Section 927.05.
(b) Authority for Control of Wastewater Discharges. If any wastes are discharged, or are proposed to be discharged, to the wastewater treatment works which contain pollutants in excess of normal concentrations as defined above and/or possess characteristics which, in the judgment of the City, may have a deleterious effect upon the wastewater treatment works or receiving waters, including violation of applicable NPDES permit, or which otherwise create a hazard to life or constitute a public nuisance, the City shall:
(1) Reject the wastes; or
(2) Require pretreatment to an acceptable condition for discharge to the wastewater treatment works; and/or
(3) Require control over the quantities and rates of discharge; and/or
(4) Require payment of surcharges as provided previously to cover the added cost of handling and treating the wastes.
Roof drains, foundation drains and all other clear water connections to the sanitary sewers are prohibited.
(d) Submission of Basic Data. Within ninety days after passage of this chapter, each person whose operation entails the discharge of industrial wastes to a public sewer shall prepare and file with the City, a written statement setting forth the nature of the operation contemplated or presently carried on, the amount and source of water required for use, the proposed point of discharge of said wastes into the waterwater collection system of the City, the estimated amount to be so discharged and a fair statement setting forth the expected bacterial, physical, chemical and other known characteristics of such wastes. Within a reasonable time of receipt of such statement, it shall be the duty of the City to make an order stating such minimum restrictions as in the judgment of the City may be necessary to adequately guard against unlawful uses of the wastewater system. When it can be demonstrated that circumstances exist which would create an unreasonable burden on the person to comply with this time schedule, a request for extension of time may be presented for consideration of the City. All requests for extension of time shall be submitted in writing, stating the reasons for such a request. Under no circumstances shall the extension of time exceed sixty days after approval of the extension by the City.
(e) Oil and Grease.
(1) If oils and grease are biodegradable and in a physical state that does not cause clogging or undue maintenance problems in the wastewater facilities, the discharge of these substances can be accepted in a wastewater treatment system. Animal and vegetable oils and greases (polar substances) are readily degradable in aerobic and anaerobic biological treatment systems provided that the physical states of the oils and grease do not prevent the necessary contact with the biological suspensions responsible for treatment. However, oils and grease of mineral origin (primarily nonpolar substances) are essentially nonbiodegradable either in aerobic or anaerobic processes and should be removed from industrial wastes to the maximum degree practical before discharge. The discharge of these oils and greases of mineral origin shall be limited to the regulation of the City. Grease separators are required for all meat packing plants and on building sewers serving hotels, restaurants, and institutions in which large numbers of meals are served.
(2) However, the use of garbage grinders precludes the use of gravity grease separators. Flammmable waste and grit intercepting facilities must be provided on all building sewers from garages, filling stations, cleaning establishments and other concerns using volatile oils or solvents. Special pretreatment methods are required for the removal of soluble cutting oils. All grease and oil removal facilities must be approved by the City.
(f) Wastewater Volume Determination.
(1) In all cases, volume to be charged for shall be one hundred percent (100%) of the volume that is recorded on the meters used to measure water from the water system of the City, unless the user is supplied with water from a source other than the water system of the City or unless a substantial volume of water supplied to the user is not discharged to the wastewater treatment works, in which case, the volume of water discharged to the wastewater treatment works shall be determined by a meter installed to measure wastewater discharged, or by other means approved by the City. In the event a sewer user shall elect at his own cost and expense to install a meter to register the exact volume of wastewater that enters the wastewater treatment works, the volume to be charged for such metered shall be based upon one hundred percent (100%) of the actual meter reading and the rates established by the City shall apply. Meters installed other than the meter used to record consumption from the water system of the City shall be approved by the City and installed and maintained at the expense of the user.
(2) Wastewater meters may be tested by the City for accuracy at the expense of the owner once each year.
(3) The City shall have the authority to remove the meter on its initiative to undertake to test and correct any meter which in its judgment is registering incorrectly without the consent of the owner. Should the wastewater meter be found to be registering outside of the accuracy of the specifications published for such meter, the owner shall bear the cost for shipping, testing, repair and replacement. Should the wastewater meter be found to be registering within the accuracy of the specifications published for such meter, the City shall bear the cost for shipping, testing, repair and replacement. During the period the meter is not in service, the volume of wastewater discharged shall be determined by the Director.
(g) Sampling and Monitoring.
(1) Industrial wastes discharged to the wastewater treatment works shall be subject to periodic inspection with a determination of character and concentration of such wastes. The determination shall be made as often as may be deemed necessary by the City. The user shall be responsible for the cost of collection and testing of the aforementioned samples.
(2) Samples shall be collected in such a manner as to be representative of the composition of the wastes. The sampling shall preferably be accomplished by the use of automatic sampling equipment capable of collecting composite samples. Every care shall be exercised in the collection of samples to insure their preservation in a state comparable to that at the time the sample was taken.
(h) Control Manhole. When required by the City, a user shall install one or more suitable structures, together with such necessary meters and other appurtenances, in the building sewer(s) to facilitate observation, sampling and measurement of the wastes. Such structure(s), when required, shall be accessible and safely located and shall be constructed in accordance with plans approved by the City. The structure(s) and appurtenances shall be installed by the user at its expense and shall be maintained by the user so as to be safe and accessible at all times.
(i) Testing.
(1) All measurements, tests and analyses of the characteristics of wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of "Standard Methods for Examination of Water and Wastewater", published by the American Public Health Association, unless such standards conflict with regulations promulgated by the U.S. Environmental Protection Agency under 40 CFR 136 - "Guidelines Establishing Test Procedures for the Analysis of Pollutants", in which case, the regulations promulgated by the Environmental Protection Agency shall govern. Sampling methods, location, times, duration and frequencies shall be determined on an individual basis subject to approval by the City or its duly authorized representative.
(2) All costs incident to sampling and analyses shall be borne by the user. Such costs incurred by the City on behalf of the user shall be billed annually to the user, based on the actual cost to the City, plus reasonable overhead. Such billing shall be billed with, and be considered a part of, the sewer service charge for the period billed.
(j) Discharge of Wastes to Storm Sewers. Wastes shall not be discharged into a storm sewer unless the waste is of such character as would permit the waste to be discharged directly to the body of water to which the storm sewer discharges and be in compliance with all criteria and standards of discharge established by regulatory agencies.
(k) Substances Limited. The following described substances, materials, waters or wastes shall be limited in discharges to City system to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment, will not have an adverse effect on the receiving stream, or will not otherwise endanger lives, limb, public property, or constitute a nuisance. The City may set limitations lower than the limitations established in the regulations below if in its opinion more severe limitations are necessary to meet the above objectives. Deliberate dilution with unpolluted water to meet the concentrations established in the regulations below shall not be acceptable. In forming its opinion as to the acceptability, the City will give consideration to such facts as the quantity of such waste in relation to flows and velocities in the sewers, materials of construction of the sewers, the wastewater treatment process employed, capacity of the wastewater treatment plant, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or water discharged to the sanitary sewer which shall not be violated without approval of the City are as follows:
(1) Wastewater having a temperature higher than 104oF.
(2) Wastewater containing more than 100 milligrams per liter of petroleum oil, nonbiodegradable cutting oils, products of mineral oil origin, floatable oils, fat, wax and grease.
(3) Any garbage that has not been properly shredded.
(4) All Dischargers that discharge Priority Pollutants to the City are required to meet the Local Limit concentrations set forth in the most recent Technical Justification as approved by the Ohio Environmental Protection Agency.
Any waters or wastes discharged by nonindustrial users, and non-permitted industrial users (as per Municipal pretreatment ordinance for the City) containing solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the Wastewater Treatment Plant including but not limited to cyanides, hexavalent chromium, copper, zinc, cadmium, nickel and phenols in the wastes as discharged to the public sewer. Any discharger not issued a permit by the Director shall not discharge any Priority Pollutant in concentrations greater than those normally found in residential and/or commercial wastewater in the City. If a discharger discharges any of the Priority Pollutants evaluated in current Technical Justification approved by the Ohio Environmental Protection Agency in concentrations exceeding background concentrations, the discharger shall submit a wastewater discharge permit application to the Director.
The Priority Pollutants may be changed as necessary by the City or State regulatory agencies based on new information concerning inhibitory substances or to protect treatment plant processes. Industrial discharges covered by Federal pretreatment requirements shall meet those limitations required in Chapter 933.
(5) Any waters or wastes containing odor-producing substances exceeding limits which may be established by the Board or any local or State regulatory agencies.
(6) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits in compliance with applicable State or Federal regulations.
(7) Quantities of flow, concentrations or both which constitute "slug" as defined herein.
(8) Waters or wastes containing substances which are not amenable to treatment or reduction by the wastewater treatment processes employed, or are amenable only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(9) Any water or wastes which by interaction with other water or wastes in the public sewer system, release noxious gases, form suspended solids which interfere with the collection system, or create a condition deleterious to structures and treatment processes.
(l) Substances Prohibited. No person shall discharge or cause to be discharged any of the following described materials into any public sewers (or treatment works):
(1) Any gasoline, benzene, naphtha, fuel oil, cleaning solvents, paint vehicles or other flammable or explosive liquid, solid or gas.
(2) Any waters or wastes having a pH lower than six or higher than nine or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the wastewater treatment works.
(3) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interferences with the proper operation of the wastewater facilities such as, but not limited to, ashes, bones, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders. Direct discharges of such materials as tar, asphalt, paint, and waxes shall also be prohibited because they may adhere to sewers and thus reduce the effective size of the pipe.
(4) Any garbage which has not been properly shredded.
(5) Any noxious or malodorous gas or substance capable of creating a public nuisance.
(m) Connections Required. The owner of all houses, buildings or properties used for human occupancy, employment, recreation or other purpose, situated within the City and abutting on any street, alley, right-of-way, or sewer easement in which there is now located or may in the future be located a public sanitary sewer of the City is hereby required to connect such building directly with the proper public sewer in accordance with present City law.
(n) When Preliminary Treatment Required. The admission into the public sewers of any waters or wastes having characteristics which vary from normal sewage shall be subject to the review and approval of the City. When necessary, in the opinion of the City, such preliminary treatment facilities as may be needed to control the quantities and rates of discharge or reduce objectionable characteristics or constitutents shall be constructed according to plans approved by the City. Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation, by the owner at his expense.
(o) When Private System Required. Where a public sanitary sewer is not available, the building sewer shall be connected to a private sewage disposal system complying with the requirements of the State of Ohio Environmental Protection Agency.
No statement contained in this section shall be construed to interfere with any additional requirements that may be imposed by the Ohio Environmental Protection Agency, or Chapter 933.
(p) Owner's Responsibility. All costs and expenses incidental to the installation, connection and maintenance of a building sewer lateral shall be borne by the owner. The owner, and/or contractor shall indemnify the City from any loss, damage or costs that may directly or indirectly be occasioned by the installation and/or maintenance and operation of any building sewer.
(q) Notification of Accidental Spills. When a user of the sewer system discharges substances in violation of subsection (j) and (k) covering limited and prohibited substances, the discharger shall immediately notify the City and Ohio EPA of the time, location, type, quantity and concentration of the discharge. Also, advise of what corrective actions are being taken. Notification shall not relieve the violator of legal responsibilities regarding the discharge.
(Ord. 5-2012. Passed 2-6-12.)