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No statement contained in this subchapter shall be construed as prohibiting any special agreement between the approving authority and any person, whereby an industrial waste of unusual strength or character may be admitted to the wastewater treatment works, either before or after pretreatment,
provided that there is no impairment of the functioning of the wastewater treatment works by reason of the admission of the wastes, and no extra costs are incurred by the city without recompense by the person, provided that all rates and provisions set forth herein.
(Ord. 170, passed 8-10-1981)
No person in the business of gathering and disposing of septic tank sludge or holding tank sewage shall transfer the material into any disposal area or sewer manhole located within the city.
(Ord. 170, passed 8-10-1981) Penalty, see § 10.99
(A) Disconnection. Before March 1, 2000, any person, firm or corporation having a roof surface, groundwater sump pump, footing tile or outdoor swimming pool now connected and/or discharging into the sanitary sewer system, shall disconnect and/or remove same. Any disconnections or openings in the sanitary sewer shall be closed or repaired in an effective, workmanlike manner, as approved by the Public Works Director or his or her designated agent.
(B) Inspection. Every person owning improved real estate that discharges into the city’s sanitary sewer system shall allow an employee of the city or their designated representative to inspect the buildings to confirm that there is no sump pump or other prohibited discharge into the sanitary sewer system. In lieu of having the city inspect their property, any person may furnish a certificate from a licensed plumber, certifying that their property is in compliance with this section. Any person refusing to allow their property to be inspected or refusing to furnish a plumber’s certificate within 14 days of the date city employees or their designated representatives are denied admittance to the property shall immediately become subject to the surcharge hereinafter provided for. Any property found to violate this section shall make the necessary changes to comply with this section and furnish proof of the changes to the city by March 1, 2000.
(C) Future inspections. Each sump pump connection identified may be reinspected on a yearly basis in conjunction with yearly water meter inspections.
(D) New home inspections. All new homes will be required to have their sump pump system inspected within 30 days of occupancy and certificate of compliance completed.
(E) Waivers.
(1) The Utility Commission shall have the power and duty of hearing and deciding requests for waivers from the applicability of the provisions of this section where strict enforcement would cause
undue hardship because of circumstances unique to the individual property under consideration, or would cause a safety problem. This would also include cases that would not be practical or feasible to correct the clear water discharge problem.
(2) Application for waivers pursuant to this division shall be addressed in writing to the City Administrator. The applications shall, at a minimum, identify the property for which the waiver is being applied, the name of the property owner/applicant, and describe in detail what characteristics of the subject property create an undue hardship. Within a reasonable time the Utility Commission shall make its order deciding on the matter and serve a copy of the order upon the applicant by mail. Upon approval of an application for a waiver, a property owner shall be allowed to temporarily discharge directly into the sanitary sewer system. The applicant will be asked to agree to pay an additional fee for the additional sewer service, along with the regular monthly charge. Fees for this service will be based on estimated yearly average amounts discharged to the sanitary sewer.
(Ord. 232, passed 11-15-1999) Penalty, see § 10.99
(A) Required connections.
(1) The owners of all houses, buildings, or properties used for human occupancy, employment, recreation, or other purposes, situated within the city and abutting on any street, alley, or right-of-way, in which there is now located or may in the future be located a sanitary sewer, shall be required, at the owner’s expense, to install suitable toilet facilities therein, and to connect the facilities directly with the proper public sewer in accordance with the provisions of this subchapter.
(2) No building sewer shall be connected to the public sewer without a permit issued by the city. All applications for connection permits shall be make to the City Administrator/Clerk-Treasurer and shall be accompanied by plans and drawings showing the proposed work. Before a permit is given, the city may inspect the premises and the proposed installation to verify that the installation is proper and in compliance with local and state laws, ordinances, and regulations. All plumbing installations shall comply with the State Plumbing Code. Issuance of permit shall be contingent on the capacity of downstream facilities to handle the increased flows.
(B) Connection-use charges; expenses. Connections to the public sewer system, connection-use fees therefor, standards for connection to the system, and the payment of expenses for the connection shall be governed by the provisions of §§ 51.25 through 51.29.
(C) Extensions to sanitary sewer system. No extensions or connections to the city sanitary sewer system shall be permitted without compliance with the provision of Preston City Ordinance No. 217, and in no event shall any extension of the system be permitted unless sufficient capacity exists downstream to handle the increased flows from the extension.
(D) Additional authority. The Council may at any time establish specific connection and lateral charges for any main not covered by any other provisions in this subchapter, or when the city has made an extension and the Council has failed to provide lateral or connection charges. It is further provided that the Council may amend or alter any connection or lateral charge after its establishment under the terms of this subchapter or previous ordinance or resolutions.
(Ord. 170, passed 8-10-1981) Penalty, see § 10.99
(A) Industrial discharges. If any waters or wastes are discharged, or proposed to be discharged, to the public sewers, which waters or wastes contain substances or possess the characteristics enumerated in §§ 51.02 through 51.05 and which, in the judgment of the approving authority, may have deleterious effects upon the wastewater treatment works, processes, equipment, or receiving waters, or which otherwise create a hazard to life, health, or constitute a public nuisance, the approving authority may do as follows.
(1) Reject the wastes.
(2) Require pretreatment to an acceptable condition for discharge to the public sewer consistent with 40 CFR 403.
(3) Require control over the quantities and rates of discharge.
(4) Require payment to cover the added costs of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of § 51.04.
(B) Control manholes.
(1) Each person discharging industrial wastes into a public sewer shall construct and maintain one or more control manholes or access points to facilitate observation, measurement, and sampling of his or her wastes, including domestic sewage.
(2) Control manholes or access facilities shall be located and built in a manner acceptable to the approving authority. If measuring devices are to be permanently installed, they shall be of a type acceptable to the approving authority.
(3) Control manholes, access facilities, and related equipment shall be installed by the person discharging the waste, at his or her expense, and shall be maintained by him or her so as to be in safe condition, accessible, and in proper operating condition at all times. Plans for installation of the control manholes or access facilities and related equipment shall be approved by the approving authority prior to the beginning of construction.
(C) Measurement of flow. The volume of flow used for computing the sewer service and cost recovery charges shall be based upon the water consumption of the person as shown in the records of meter readings maintained by the Public Utilities Commission, or as determined by other methods revealing accurate water consumption of the person involved.
(D) Provision for deductions. In the event that a person discharging industrial waste into the public sewers produces evidence satisfactory to the approving authority that more than 10% of the total annual volume of water used for all purposes does not reach the public sewer, then the determination of the water consumption to be used in computing the waste volume discharged into the public sewer may be made a matter of agreement between the approving authority and the person.
(E) Metering of waste. Devices for measuring the volume of waste discharged may be required by the approving authority if this volume cannot otherwise be determined from the metered water consumption records. Metering devices for determining the volume of waste shall be installed, owned, and maintained by the person. Following approval and installation, meters may not be removed without the consent of the approving authority.
(F) Waste sampling.
(1) Industrial wastes discharged into the public sewers shall be subject to periodic inspection and a determination of character and concentration of the wastes. The determinations shall be made by the industry as often as may be deemed necessary by the approving authority.
(2) Samples shall be collected in such a manner as to be representative of the composition of the wastes. The sampling may be accomplished either manually or by the use of mechanical equipment acceptable to the approving authority.
(3) Testing facilities shall be the responsibility of the person discharging the waste and shall be subject to the approval of the approving authority. Access to sampling locations shall be granted to the approving authority or its duly authorized representatives at all times. 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.
(G) Pretreatment. Where required, in the opinion of the approving authority, to modify or eliminate wastes that are harmful to the structures, processes, or operation of the wastewater treatment works, the person shall provide, at his or her expense, such preliminary treatment or processing facilities as may be required to render his or her wastes acceptable for admission to the public sewers.
(H) Grease and/or sand interceptors. Grease, oil, and sand interceptors shall be provided when, in the opinion of the approving authority, they are necessary for the proper handling of liquid wastes, containing floatable grease in excessive amounts, as specified in § 51.03(B), or any flammable wastes, sand or other harmful ingredients. All interceptors shall be of a type and capacity approved by the approving authority, and shall be located so as to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner(s) shall be responsible for the proper removal and disposal by appropriate means of the captured material, and shall maintain records of the dates and means of disposal which are subject to review by the approving authority. Any removal and hauling of the collected materials not performed by the owner’s personnel must be performed by currently licensed waste disposal firms.
(I) Analysis.
(1) All measurements, tests, and analysis of the characteristics of waters and waste to which reference is made in this subchapter shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association and Guidelines Establishing Test Procedures for Analysis of Pollutants (1978, 40 CFR 136). Sampling methods, locations, times, durations, and frequencies are to be determined on an individual basis subject to approval by the approving authority.
(2) Determination of the character and concentration of the industrial wastes shall be made by the person discharging them, or his or her agent, as designated and required by the approving authority. The approving authority may also make its own analysis of the wastes, and these determinations shall be used as a basis for charges. If the person discharging the waste contests the determination, the approving authority may elect to have an independent laboratory determine the character and concentration of the waste. The independent laboratory, in making determination, shall be assumed by the discharger.
(J) Submission of information. Plans, specifications, and other pertinent information relating to proposed flow equalization, pretreatment, or processing facilities shall be submitted for review by the approving authority prior to the start of their construction if the effluent from the facilities is to be discharged into the public sewers.
(K) Submission of basic data. Within three months after passage of this subchapter, each person who discharges industrial wastes to a public sewer shall prepare and file with the approving authority a report that shall include pertinent data relating to the quantity and characteristics of the waste discharged to the wastewater works. Similarly, each person desiring to make a new connection to a public sewer for the purpose of discharging wastes shall prepare and file with the approving authority a report that shall include actual or predicted data relating to the quantity and characteristics of the waste to be discharged.
(L) Extension of time. When it can be demonstrated that circumstances exist which would create an unreasonable burden on the person to comply with the time schedule imposed herein, a request for extension of time may be presented for consideration by the approving authority.
(Ord. 170, passed 8-10-1981) Penalty, see § 10.99
The Director of Public Works, Superintendent of the wastewater treatment plant, or other duly authorized employee of the approving authority bearing proper credentials and identification, shall be permitted to enter all properties for the purpose of inspection, observation and testing, all in accordance with the provisions of this subchapter.
(Ord. 170, passed 8-10-1981) Penalty, see § 10.99
The cost of installation of extensions to sanitary sewer mains of the city shall be paid from the general fund of the city, or, at the discretion of the City Council, some portion or all of the cost of any extensions may be assessed to the parcel or parcels specially benefitted by the installation of the extensions, all in accordance with the terms and provisions of M.S. Chapter 429, as it may be amended from time to time, and amendments thereto. However, no extensions shall be permitted unless sufficient capacity exists downstream to handle the expected increased flows from any extensions.
(Ord. 170, passed 8-10-1981)
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