Loading...
HomeMy WebLinkAbout1059ORDINANCE NO. 1059 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF UKIAH RENUMBERING ARTICLE 17 OF CHAPTER 2 OF DIVISION 3 OF THE UKIAH CITY CODE, AS ARTICLE 18, AND ADOPTING A NEW ARTICLE 17, ENTITLED: GREASE INTERCEPTORS, INSTALLATION AND DISPOSAL OF WASTE The City Council of the City of Ukiah hereby ordains as follows: SECTION ONE. Article 17 of Chapter 2, Division 3 of the Ukiah City Code is hereby renumbered as Article 18. SECTION TWO. A new Article 17 is hereby added to Chapter 2, Division 3 of the Ukiah City Code to read as follows: ARTICLE 17. GREASE INTERCEPTORS, INSTALLATION AND DISPOSAL OF WASTE SECTION: {3798A {3798B {3798C {3798D {3798E {3798F {3798G {3798H {37981 {3798J {3798K {3798L {3798M {3798N {378NO {3798P {3798Q {3798R {3798S {3798T {3798U {3798V {3798W Purpose, Policy and Administration Administration Definitions Specialized Definitions Applicability Compliance date Discharge criteria Requirements of Grease Interceptors Grease Interceptor Construction Service/Inspection Ports and Monitoring Ports Under the Sink Grease Interceptors Interceptor Maintenance Permit Requirements Required Reporting Grease Interceptor Treatment Products Mobile Treatment Processes Facility Closure Monitoring, Inspection and Entry Timing Fees Violation Authorization Severability ORDINANCE NO. 1059 PAGE 1 OF 2,5 §3798A: PURPOSE, POLICY, AND ADMINISTRATION: (a) The purpose of this Article is the regulation of the generation and disposal of grease interceptor waste for the protection of the City of Ukiah Sewage Treatment Plant ("Plant") and the environment. (b) The objective of this Article is to reduce the operational and maintenance costs of maintaining the PLANT and ensure compliance of its' NPDES permit by preventing the accumulation of grease within the collection system lines. (c) This Article shall apply to the City of Ukiah and to persons outside the City who, by contract or agreement with the City, are users of the City's PLANT. §3798B: ADMINISTRATION: (a) Except as otherwise provided herein, the Superintendent under the authority and supervision of the Director shall administer, implement, and enforce the provisions of this Article. (b) The Superintendent, the City Manager, the Director, and the Director of Planning, and persons designated and under the instruction and supervision of any of them, may investigate compliance with this Article. §3798C: DEFINITIONS: Unless a provision explicitly states otherwise, terms and phrases as defined in Section 3700.0 of this Code shall apply to the extent that they are not in conflict with the provisions of this Article. §3798D: SPECIALIZED DEFINITIONS: Unless otherwise expressly stated or the context clearly indicates a different intention, the following terms shall, for the purpose of this Article, have the meanings indicated in this section: "Adequately sized grease interceptor" shall mean an interceptor that does not allow a discharge of Oil and Grease, or otherwise has not been found by the Director to be contributing grease in quantities sufficient to cause PLANT line stoppages or necessitate increased maintenance on the PLANT in order to keep line stoppages from occurring. "Approved" shall mean accepted as satisfactory under the terms of this Article and given formal and official sanction by the Director. "Biological pretreatment service" shall mean the application of any additive or enzyme or the use of any other biological means to digest waste in an interceptor that discharges into ORDINANCE NO. 1059 PAGE 2 OF 25 a public sewer system within the City. "Director" shall mean the Director of the Public Utilities Department, his duly authorized deputy, agent or representative, or another person designated by the City Manager. "Discharge" shall mean the introduction of waste into a PLANT. "Disposal" shall mean the discharge, deposit, injection, dumping, spilling, leaking or placing of any solid or semi-solid grease interceptor waste, grit interceptor waste, and/or sewage into or on any land or water so that such waste or any constituent thereof may enter the environment or be emitted into the air or discharged into any waters, including ground waters. "Emulsifiers" and/or "De-emulsifiers" shall mean any substance or substances which, when added or placed into a grease trap or grease interceptor, will form an oily substance to a milky fluid in which the fat globules are in a very finely divided state and are held in suspension, giving it the semblance of a solution; as the homogenization of milk emulsifies the fat with the whey forming a smooth milk product. "Existing facility" shall mean any building, structure, facility, or installation from which there is or may be a discharge of pollutants, the construction of which started before the adoption of this Article. "Fats" shall mean substances that are primarily fatty acid esters of the alcohol glycerol, also called acylglycerols, neutral fats, natural fats, or glycerides. They are the major components of depot, or storage, fats in plant and animal cells, especially in the adipose (or fat) cells of vertebrates. This term may include any synthesized substance of a like nature. "Food courts" shall mean areas predominantly found in shopping centers or amusement parks and festivals where several food preparation establishments having different owners may be sharing seating space and/or plumbing facilities. "Food service facility" shall mean any nonresidential establishment that uses or generates grease when preparing food. Food service facility does not include any facility that prepares food for off-site cooking and consumption, or any facility that does not use, generate or dispose of grease in cooking or preparing food. "Garbage grinder" shall mean a device, which shreds or grinds up solid or semisolid waste materials into smaller portions for discharge into the PLANT. "Generator" shall mean a facility that causes, creates, generates, stores, or otherwise produces waste from on-site process operations, whether domestically or commercially generated, or as a byproduct of some domestic or non-domestic activity. The generator is responsible for assuring that the produced waste is disposed of in accordance with all Federal, State and local disposal regulations. "Grease" shall mean fats, waxes, free fatty acids, calcium and magnesium soaps, ORDINANCE NO. 1059 PAGE 3 OF 25 mineral oils and certain other non-fatty material from animal or vegetable sources, or from hydrocarbons of petroleum origins, commonly found in wastewater from food preparation and food service. Grease may originate from, but not be limited to, discharges from scullery sinks, pot and pan sinks, dishwashing machines, soup kettles and floor drains located in areas where grease-containing materials may exist. "Grease interceptor" or "interceptor" shall mean a water-tight receptacle utilized by commercial or industrial generators of liquid waste to intercept, collect, and restrict, the passage of grease and food particles into the PLANT to which the receptacle is directly or indirectly connected, and to separate and retain grease and food particles from the wastewater discharged by a facility. "Grease interceptor waste" shall mean any grease, food particles, or organic or inorganic solid or semisolid waste collected and intercepted by a grease interceptor, usually in layers of floatable, suspended, and settleable substances, which are ultimately removed from a grease interceptor for proper disposal. All layers must be removed for disposal. "Incompatible wastes" shall mean wastes that have different processing, storage or disposal requirements, or whose mixture would inhibit the proper disposal or treatment of each type of waste, or wastes that if mixed may cause a dangerous chemical or physical reaction, including, but not limited to, grease interceptor waste and grit interceptor waste, grease interceptor waste and septic tank waste, seepage and hazardous waste, or any combination or combinations thereof. "Inspection port" shall mean openings, with easily opened covers, designed to allow inspectors quick access to the inlet flow control device, each compartment of the grease interceptor, and the effluent from the interceptor. A monitoring port is an inspection port large enough to allow temporary installation of monitoring devices such as samplers, strip recorders, flow meters, or other such measuring and/or monitoring devices. "Inspector" shall mean the Superintendent, the Director of Public Works, the Director of Planning and person or persons designated and under the instruction and supervision of any of them, who are assigned to investigate compliance and detect violations of this Article. "Manager" shall mean the person, regardless of actual title, immediately on-site at a location conducting, supervising, managing, or representing the activities of a Food service facility "May not" shall mean prohibit. "New facility" shall mean: (1). Any building, structure, facility, or installation from which there is (or may be) a discharge of pollutants, the construction of which commenced after the adoption of this Ordinance, provided that: ao The building structure, facility, or installation is constructed at a site at ORDINANCE NO. 1059 PAGE 4 OF 2.5 which no other source is located; or b. The building, structure, facility, or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing course; or The production processes or wastewater generating processes of the building, structure, facility, or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source, should be considered; or d, Any remodeling or modification that results in a new facility as determined by the Inspection Division of the Department of Planning (2) Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility, or installation meeting the criteria of subsection (1) above, but otherwise alters, replaces, or adds to existing process or production equipment. (3) Construction of a new source as defined under this paragraph has commenced if the owner or operator has: a, Begun, or caused to begin, as part of a continuous on-site construction program any placement, assembly, or installation of facilities or equipment; or significant site preparation work including clearing, excavation, or removal of existing buildings, structures, or facilities which is necessary for the placement, assembly, or installation of new source facilities or equipment; or bo Entered into a binding contractual obligation for the purchase of facilities or equipment, which are intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss, and contracts for feasibility, engineering, and design studies do not constitute a contractual obligation under this paragraph. "NPDES" shall mean National Pollutant Discharge Elimination System as administered by the North Coast Regional Water Quality Control Board for the United States Environmental Protection Agency. "Oil and grease" shall mean any material, but particularly biological lipids and mineral hydrocarbons, recovered as a substance soluble in an organic extracting solvent using an appropriate analytical method approved under 40 CFR §136. It also includes other material ORDINANCE NO. 1059 PAGE 5 OF 25 extracted by the solvent from an acidified sample and not volatilized during the extraction procedure. "Permittee" shall mean a person issued a permit under this article, including any agent, servant, or employee of the permittee. "PLANT" shall mean publicly-owned treatment works of the City, a treatment works as defined by Sec'don 212 of the Clean Water Act (33 U.S.C. 1292), including the entire facilities for collecting, transporting, pumping, treating, and disposing of domestic and industrial wastewaters, located within and outside the City limits and either owned, operated, maintained, or controlled by the City. "Reasonable hours" shall mean any time during which a facility is open for business to the public. It shall also include those times when a facility is closed to the public when a manager, employees, and/or contractors are present at the facility and involved in cleanup or food preparation, or any other business activity. "Sewage" shall mean the liquid and water-carried domestic or industrial wastes from dwellings, commercial establishments, industrial facilities and institutions, whether treated or untreated. The terms "waste" and "wastewater" shall be deemed as sewage by definition. "Shall not" shall mean prohibit. "Spill" shall mean the unpermitted, accidental or intentional loss or unauthorized discharge of grease interceptor waste, grit interceptor waste, seepage, any other liquid waste, a chemical (hazardous or non-hazardous), or any other material that has the potential to contaminate any surface or ground water or in any other manner such that the waste is not duly and legally disposed of. "Superintendent" shall mean the manager / supervisor of the city PLANT or his or her designee or such other person as may be designated by the Director of Public Utilities. "Under the sink grease interceptor" shall mean a device placed under or in close proximity to sinks or other fixtures likely to discharge grease in an attempt to separate, intercept or hold grease waste to prevent its entry into the PLANT. The Inspection Division of the Department of Planning shall approve such "under the sink grease interceptors" and documentation shall be provided for the disposal of waste. Refer to Section 37981 below for applicability of this form of grease interceptor. "Waste" shall mean the liquid and water-carried domestic or industrial wastes from dwellings, commercial establishments, industrial facilities and institutions, whether treated or untreated. The term's "sewage" and "wastewater" shall be deemed waste. §3798E: APPLICABILITY: (a) Waste, which contains grease, shall be discharged into the PLANT only under the conditions of this Article. The following facilities shall discharge all waste from sinks, ORDINANCE NO. 1059 PAGE 6 OF ?5 dishwashers, drains, and any other fixtures through which grease may be discharged, into an adequately sized, properly maintained and functioning grease interceptor before the discharge enters the PLANT, as well as providing a grease interceptor inlet flow control device inspection port and a grease interceptor effluent monitoring port: , Every commercial food preparation and food service facility, including but not limited to bakeries, boardinghouses, butcher shops, cafes, clubhouses, commercial kitchens, delicatessens, ice cream parlors, hospitals, restaurants, schools, and similar facilities, especially where meat, poultry, seafood, dairy products or fried foods are prepared or served, 2. All shopping centers that have food processing facilities, 3. All food courts, , All other facilities discharging grease in amounts that will, alone or in concert with other substances from the discharges of other facilities, have a reasonable chance to impede or stop the flow in the PLANT. (b) All new areas of intensified dwelling, including, but not limited to, adult day care facilities, assisted living facilities, convalescent homes, day nursing and childcare facilities, in which food preparation occurs, homes for the mentally challenged, hotels, maternity homes, motels in which there is a commercial food preparation service, nursing homes, retirement and life care communities and homes, and truck stops with commercial food service, shall be required to have grease interceptors. Modifications to existing facilities that add new buildings or new grease generating activities are included in this requirement. All such existing facilities may be so required, as determined by subsection (a)4, of this section. (c) Interceptors shall not be required for single-family residences, duplexes, triplexes, quadplexes, or apartment complexes, unless the City first determines there are discharges from the property that will create problems in the PLANT. The determination shall be made based upon an investigation of the property, and a comparison of the content and amount of discharge from the property with the discharges of other properties similar in size and use. Upon a determination that the discharges will create problems in the PLANT, the Director shall require the installation of a sufficiently sized grease interceptor to treat the discharges. §3798F: COMPLIANCE DATE: (a) On or after the effective date of the ordinance enacting this Article, an existing facility shall be required to install an approved, adequately sized, and properly operated and maintained grease interceptor when any of the following conditions exist: It is found to be contributing grease in quantities sufficient to cause sanitary sewer line stoppages or necessitate increased maintenance on the sanitary sewer collection system (PLANT) in order to keep main ORDINANCE NO. 1059 PAGE 7 OF line stoppages from occurring. It is remodeling the food preparation or kitchen waste plumbing facilities in such a manner to be subject to a permit issued by the Department of Planning. (b) Existing facilities required by this or other applicable Ordinance to maintain a grease interceptor presently equipped with an undersized or improper grease interceptor shall, within 36 months of the effective date of this Ordinance, install an adequately sized grease interceptor in accordance with the specifications of this Ordinance. (c) Existing facilities required by this or other applicable ordinances to maintain a grease interceptor not equipped with a grease interceptor shall, within 18 months of the effective date of this Ordinance, install an_appropriate and adequately sized grease interceptor in accordance with the specifications of this Ordinance. (d) New facilities required by this or other applicable ordinances to maintain a grease interceptor shall install such a unit prior to commencement of discharge to the PLANT. (e) Any requests for extensions to installation dates must be made in writing to the Director, at least thirty (30) days in advance of the compliance date. The written request shall include the reasons for the grease generator's failure or inability to comply with the compliance date set forth, the additional time needed to complete the remaining work, and the steps to be Itaken to avoid future delays. The Director shall determine the date for compliance. Requests based solely on monetary considerations will not be accepted. Section 3798G: DISCHARGE CRITERIA: Grease disposal prohibited. No person shall dispose of any grease, or cause any grease to be disposed, by discharge into any drainage piping, by discharge into any public or private sanitary sewer, by discharge into any storm drainage system, or by discharge to any land, street, public way, river, stream or other waterway (a) Where oil and grease are a byproduct of food preparation and/or cleanup, reasonable efforts shall be made to separate waste oil and grease into a separate container for proper disposal. Except as contained in byproducts of food preparation and/or clean up, waste oil and grease shall not be discharged to any drains or grease interceptors. Such waste shall be placed in a container designed to hold such waste and either utilized by industry or disposed of at suitable locations. ,This also applies to sin.qle family residences. (b) None of the following agents shall be placed directly into a grease interceptor, or into any drain that leads to the interceptor: ORDINANCE NO. 1059 PAGE 8 OF ?-.5 ...-.-'j Formatted: Font: Bold, Underline Emulsifiers, de-emulsifiers, surface active agents, enzymes, degreasers, or any type of product that will liquefy grease interceptor wastes, 2. Any substance that may cause excessive foaming in the PLANT, or , Any substance capable of passing the solid or semi-solid contents of the grease interceptor to the PLANT. (c) The influent to interceptors shall not exceed 140 degrees Fahrenheit (140° F). (d) Toilets, urinals, and other similar fixtures shall not discharge through a grease interceptor. (e) Where food-waste grinders are installed, the waste from those units shall discharge directly into the building drainage system without passing through a grease interceptor. §3798H: REQUIREMENTS FOR GREASE INTERCEPTORS: (a) All commercial and industrial facilities dealing with grease shall, at the I permittees' expense and as required by the City: 1. Provide an adequately sized grease interceptor. Requirements for grease trap sizing and the design criteria are provided in Section 4. 2. Locate the interceptor in a manner that provides immediate and easy accessibility for cleaning and inspection. . Obtain a written interceptor service agreement with a licensed transporter for a term of at least one (1) year, or for the duration of the operation of the establishment, whichever is less, to maintain the interceptor in effective operating condition. A service agreement must be in effect as long as the facility has a Grease Trap Permit. , Unless otherwise specified by the Director, service the interceptor every 90 days and maintain backup copies of receipts for service as well as a service log, on the premises of the facility, for at least five (5) years. 5. Allow inspection of the facility and of records by inspectors during reasonable hours. ORDINANCE NO. 1059 PAGE 9 OF 2,.5 (b) Requirements for Grease Trap Sizing and Design Criteria 1. Introduction: Information contained within this subsection (b) is based on standard industry practices and guidance found in both the 1997 International Plumbing Code (IPC) Commentary and the Uniform Plumbing Code (UPC), Appendix H. Size, type, and location of grease traps shall be in accordance with the manufacturers instructions and the requirements of City of Ukiah Ordinance. 2. Applicability: These requirements are applicable to all commercial food service establishments, including those that are undergoing: a. New construction b. Interior remodeling to accommodate expansion or operational modifications c. Changes of ownership/occupancy d. Facilities which may be experiencing compliance with maintenance and/or limitations. difficulty in achieving wastewater discharge 3. Sizing Requirements: Sizing methods described herein are intended as guidance in determining grease trap/interceptor sizes that will afford the PLANT a minimum degree of protection against grease and other obstructing materials. Sizing determinations are based on operational data provided by business owners or their contractors. In approving a customer's plumbing or grease interceptor design, the City does not accept liability for the failure of a system to adequately treat wastewater to achieve effluent quality requirements specified under this Ordinance. It is the responsibility of the generator and/or contractors to insure the appropriate level of treatment necessary for compliance with environmental and wastewater regulations. Minimum acceptable grease trap/interceptor sizing shall be accomplished as follows: a. Sizing according to formulas found in Section 4 below. Where sizing formulas result in determination of a grease trap less than 750 gallons in capacity, ,this minimum size is to be used. .. _ -- -~ Formattecl: Font: Bold, Underline In the circumstance of "single service kitchens" with no food ORDINANCE NO. 1059 PAGE 10 OF ?-5 preparation (heat/serve only), and which use only paper service items, a minimum 50 gallon per minute (gpm) flow rated, or 100 pound grease retention, mechanical grease trap may be used. In these instances, the grease trap is to be installed in an area separate from food handling area, and the trap must be readily accessible for cleaning and maintenance. (See Section 6, below) 4. Grease Trap Sizing Formulas: It is the responsibility of the generator and his/her contractors to ensure that the wastewater discharged from their facility is in compliance with the City's discharge limitations. For the purpose of plans review, a general assessment of grease trap/interceptor design and size will be performed using the following formulas. (These formulas have been demonstrated as industry standards capable of achieving the City's discharge criteria when systems are maintained in proper conditions.) Method 1: Uniform Plumbing Code, Appendix H Number of meals x waste flow x retention x storage : Size Requirement Per Peak hour (1) rate (2) time (3) factor (4) (liquid capacity) Factors: 1) Number of meals served at peak operating hour (Seating Capacity) x Peak Factor a. Where Peak Factor for Fast Food Restaurant is... 1.33 b. And, Peak Factor for all other food service types is 1.00 2) Waste Flow Rate: a. With Dishwasher ..................................... 6 gallon flow b. Without Dishwasher ............................... 5 gallon flow c. Single Service kitchen ........................... 2 gallon flow d. Food waste disposer .............................. 1 gallon flow 3) Retention Times a. Commercial kitchen waste/dishwasher ......... 2.5 hours b. Single service kitchen/single serving ............ 1.5 hours 4) Storage Factors a. Fully equipped commercial kitchen 8 hr operation = 1 b .............................................. 16 hr operation = 2 c .............................................. 24 hr operation = 3 d. Single Service Kitchen ..................................... 1.5 The Uniform Plumbing code includes a built-in safety factor that can yield very ORDINANCE NO. 1059 PAGE 11 OF 25 large grease trap size specifications. At this time, the City is not requiring traps larger than 4000 gallons. Method 2: Five (5) Hour Detention/Peak Flow A, B. C. D. Gallons of water used per hour of operation A x 0.75: average "gray water" flow per hour B x 1.9 peak flow factor C x 5 hours detention = volume trap Required volume of trap = A x B x C x D 5. Alternate Sizing Formulas/Proposals Facilities that propose the use of alternate sizing techniques and/or procedures that result in specifications that differ from calculated requirements (or are less than the MINIMUM 750 gallon recommendation), must submit formulas and other bases to support proposed grease trap size/installation. Submission should also provide documentation of ability to meet effluent quality requirements. o Construction/Installation: All permitting, construction, and inspection activities must be completed in accordance with the Uniform Plumbing Code. Additionally, the following specifications must be incorporated into grease trap design. ao The grease interceptor shall be constructed with a minimum of two chambers or shall have a minimum of two tanks in series. If two chambered, the dividing wall must extend to the bottom of the tank and within two (2) inches of the top and be securely fastened to both sides. bo There must be inlet and outlet tees made of schedule 40 PVC installed. The inlet tee should extend down approximately one- third the depth of the trap from the top and the outlet tee should be located twelve to eighteen inches off of the bottom of the trap. C, Grease traps are to be installed at a minimum distance of 10 ft. from sinks and dishwashers to allow for adequate cooling of wastewater. Water temperatures must be less than 140 degrees F. prior to entering grease trap. d, All grease bearing waste streams should be routed through an appropriate grease trap/inceptor, including: three-compartment sinks, pot/pan sinks, soup kettles, hand-washing sinks, dishwashers, mop sinks and floor drains. ORDINANCE NO. 1059 PAGE 12 OF Notable Exceptions: Drains that receive "clear waste" only, such as from ice machines, condensate from coils and drink stations, may be plumbed to the sanitary system without passing through the grease interceptor with the condition that the receiving drain is a "hub" type that is a minimum of two inches above the finished floor. e. All exterior or recessed Grease Traps and Interceptors are to be installed with an Effluent Sampling Well, equivalent to: a. Parks Equipment Services Sample Well SWB-9; b. American Industrial Pre-Cast Products Test Well; Or c. Uopnor Sample Well. Sample wells will have a 15" diameter access Cover and a minimum 4" drop from inlet to outlet piping through the sampling well. Mechanical Grease Traps and Interceptors that are installed above ground must be equipped with an influent flow regulator and an effluent valve assembly that allows for sample collection. 7. Customer (Generator) Responsibilities: It is the responsibility of the customer (waste generator) to insure compliance with the City of Ukiahs' discharge limitations. Hazardous wastes, such as acids, strong cleaners, pesticides, herbicides, paint, solvents, or gasoline shall not be disposed of into the sanitary sewer. If commercial dishwashers are discharged through a grease interceptor, care must be taken in system design. Dishwashers use detergents and elevated water temperatures that will melt grease. If the interceptor is either too small or too close to the commercial dishwasher, grease may pass through the interceptor and into the collection system. Generators are responsible for maintaining grease traps in continuous proper working condition. Further, generators are responsible for inspecting, repairing, replacing, or installing apparatus and equipment as necessary to ensure proper operation and function of grease traps and compliance with discharge limitations at all times. The generator must have a grease trap/grease interceptor service contract (for pumping, cleaning, and inspection), at a minimum frequency of every 90 days to ensure proper function. The trap shall be maintained more frequently if needed to meet the City's discharge criteria. Records of maintenance are required to be maintained on site for five (5) years. (90-day maintenance frequency assumes proper sizing and installation consistent with this guidance). Enzymes, solvents, Biological treatment, and emulsifiers are not permitted, as they will only change the form of grease, allowing it to be carried out of the trap with the wastewater and deposited in the collection ORDINANCE NO. 1059 PAGE 13 OF 25 system (PLANT). §37981: GREASE INTERCEPTOR CONSTRUCTION: (a) Any person responsible for discharges requiring a grease interceptor shall, at his own expense and as required by the City, provide plans and specifications for equipment and facilities of a design type and design capacity approved by the City. The grease interceptor must be in compliance with the current applicable Uniform Plumbing Codes. The person shall locate the interceptor in a manner that provides easy accessibility for cleaning and inspection land maintain the interceptor in effective operating condition. The City shall inspect the interceptor during construction and upon completion. The Citv shall make a final inspection before any service connections are made. (b) Construction of items listed herein in accordance herewith or in accordance to the City's specifications shall not constitute a defense to unlawful discharge and shall not limit the generator's liability for any surcharge stated in this division. (c) If the Inspector determines that there is a need for installation or upgrading of sample ports or grease interceptors on an existing establishment, the Director may order the installation or upgrading of such interceptors on that existing establishment. If the Director orders such installation, then the Director shall serve notice of such order upon the grease generator. Within ten (10) days of receipt of such order, the grease generator may demand a hearing to review such order, in which case the Director shall schedule a hearing to review such order within thirty (30) days of receiving the demand for review from the grease or grit generator. If a hearing to review the order is scheduled, the Director shall serve notice of the hearing to review such order upon the grease generator at least ten (10) days before the date of such hearing. At the hearing to review the order, the grease generator may present evidence, and the Director may make new findings and issue new orders concerning the subject of the original hearing. After receiving notice of the order to install or upgrade ports or interceptors on an existing establishment, it shall be unlawful for a grease generator to allow or cause any discharge into the sanitary sewer not in compliance with such order. (d) Where the process wastewaters are generated in only part of the facility, the process wastewaters may, at the option of the Director, discharge into a grease interceptor servicing only those areas that provide a suitable sampling port. (e) The Director may waive the requirement for a grease interceptor provided the grease generator can verify that only domestic sewage is being discharged, and no floor drains or process water are present. The Director may require testing by the user in connection with this request, with all costs for this testing being borne by the generator. §3798J: SERVICE/INSPECTION PORTS AND MONITORING PORTS: (a) Except for "under the sink grease interceptors", each interceptor shall be located outside of a building or structure in an area accessible for service, and so installed and connected that it shall be at all times easily accessible for inspection, and for cleaning and removal of the intercepted waste. Inlet flow control inspection ports, interceptor inspection ORDINANCE NO. 1059 PAGE 14 OF 25 ports, and effluent monitoring ports shall be in areas where vehicles may not temporarily block access to inspection. The use of ladders or the removal of bulky equipment or stored materials in order to inspect inlet flow control devices, inspect or service interceptors, or sample interceptor effluent shall constitute a violation of accessibility. Inspection ports and monitoring ports shall be located so as to allow inspectors quick and easy access to the inlet flow control device, each compartment of the interceptor, and the effluent from the interceptor. An interceptor shall not be installed in any part of a building where food is handled. The location of all interceptors, inspection ports, and monitoring ports shall meet the approval of the City and shall be shown on the approved building plans. (b) An inspection port shall be provided for the flow control device regulating flow into the interceptor. (c) A one-piece removable metal plate covering the entire interceptor shall be preferred as an interceptor inspection port, though at the discretion of the City, standard manhole ports may be installed over each divider in the interceptor, but in either case all parts of the interceptor shall be easily accessible for cleaning and visual inspection. (d) A monitoring port shall be provided for ease in sampling the treated effluent from the interceptor and shall be as close as possible to the connection with the City PLANT within the bounds of the facility property. The port shall be installed according to the specifications of the City. The port shall be installed and maintained at the user's expense. A generator shall properly place, monitor, and maintain the monitoring port so that wastewater samples taken from the monitoring port are representative of wastewater leaving the interceptor. It shall be unlawful for a grease generator to divert sewage around a monitoring point into the PLANT. §3798K: UNDER THE SINK GREASE INTERCEPTORS: (a) In the event that an outside grease interceptor is not technically practicable, an "under the sink grease interceptor" may be installed subject to the approval of the Director. In addition to the regular requirements of grease interceptors, "under the sink grease interceptors" are subject to the additional requirements. (b) General requirements. , The location of such interceptors shall be in as close proximity to the source of wastewater as physically possible. , The lid shall be secured to the body with a single bolt. No wing nuts or screws shall be permitted. , Baffle systems and all other internal pieces shall be removable to facilitate cleaning and replacement, but must be in place at all other times. The lid shall cover the deep seal trap. The deep seal trap shall be constructed so as to eliminate the possibility of sewer gas entering the kitchen area. ORDINANCE NO. 1059 PAGE 15 OF 2.5 (c) . . The interceptors shall be constructed with bottom supports so that the body of the interceptor does not corrode by coming into contact with the floor. The interceptor shall be coated with a powder coated electrostatically applied cathodic epoxy coating so as to be resistant to corrosion. 7. The interceptor shall be equipped with a flow control fitting. Installation requirements. The interceptor may be set on the floor, partially recessed in the floor with top flush with the floor, or fully recessed below the floor to suit piping and structural conditions, as acceptable by the Planning Department. . There shall be sufficient clearance for the removal of the interceptor cover for cleaning. . Unless specifically approved by the Planning Department, runs of pipe exceeding 25 feet between fixture and interceptor shall not be permitted. . The interceptor shall not be installed in a waste line from a garbage grinder. Any garbage grinder waste shall bypass the interceptor. . A suitable flow control fitting shall be installed ahead of the interceptor in the waste line beyond the fixture and as close as possible to the underside of the lowest fixture. When wastes of two or more sinks or fixtures are combined to be used by one interceptor, a single flow control fitting shall be used. . Air intake for flow control either shall terminate under the sink drain board as high as possible to prevent overflow, or shall terminate in a return bend at the same height and on the outside of the building. To retain water and prevent siphoning, all interceptors shall have a vented waste, sized in accordance with the Universal Plumbing Code. , With the approval of the Inspection Division of the Department of Community Development, one interceptor may be used to serve multiple fixtures if the fixtures are located close together and the interceptor is sized to meet the combined flow of all the fixtures. (d) Maintenance requirements. , Interceptors shall be serviced at least every week. After accumulated grease and waste has been removed, the interceptor shall be thoroughly ORDINANCE NO. 1059 PAGE 16 OF 25 , , inspected to make certain that inlet, outlet, and air relief ports are clear of obstructions. Grease and other waste removed from the interceptor shall not be introduced into any drain, sewer, or natural body of water. The waste shall be placed in proper containers for proper disposal. It shall not be mixed with "edible" grease. Grease and waste removed from an interceptor shall not be disposed of in such a matter so as to become food for animals or humans. The grease generator shall maintain adequate documentation that the interceptor is appropriately cleaned and inspected. §3798L: (a) INTERCEPTOR MAINTENANCE: Interceptor Maintenance Service Contract All grease generators having interceptors shall perform all business transactions relating to interceptor pumping, cleaning, and servicing, and to liquid waste collection, transportation and/or disposal on a contractual basis via a written contract having a duration of no less than one year, and provide copies of all such contracts to the inspector upon request. Any modifications or changes to the contract must be submitted to the City within ten (10) working days of the change or modification. It is a violation for a grease generator to discharge through an interceptor without a service contract. 2. A Contract shall at a minimum: a. From the customer (1). Contain the customer name, address and telephone number, and the name, address, and telephone number of the facility to be serviced if different. (2). Contain the name of a primary and secondary contact person for the facility. (3). Contain the Grease Interceptor Permit number of the facility. (4). Indicate the size of each interceptor. (5). Indicate the precise and unambiguous location of the interceptor or interceptors to be serviced, including a diagram if necessary. ORDINANCE NO. 1059 PAGE 17 OF ?..5 (6). Indicate the frequency of pumpage required. (7). Be signed and dated by an authorized representative indicating acceptance of the terms of the contract. b. From the Cleaning Service (1). Contain the company name, address, and telephone number. (2). Contain the name of a primary and secondary contact person. (3). Be signed and dated by an authorized representative indicating acceptance of the terms of the contract. (4). The name, address, and telephone number of the disposal site. c. Other Contain a statement of the duration of the contract, to be not less than one year, or for the duration of the operation of the facility, whichever is less. (b) Required Pumping Frequency Unless otherwise specified by the Director, each interceptor in active use shall be cleaned at least once every 90 days or more frequently as needed to prevent carry over of grease into the PLANT, unless it can be demonstrated to the Director that the pumping frequency can be performed at greater intervals. The Director may specify cleaning more frequently when 90 day pumping is shown to be inadequate. Additional pumping may be required during time periods where increased loading is anticipated. Any grease generator desiring a schedule less frequent than quarterly shall submit a request to the Director along with testing (as required by the Director) and copies of the cleaning records for the last four (4) interceptor cleanings, including measurements of the thickness of the surface scum/grease layer. . At any time if an inspection finds the interceptor to be full, immediate steps shall be taken by the grease generator to pump out and clean it as soon as is practicable. In no case Ion.qer than 48 hours. The inspector shall make an evaluation of the advisability of allowing discharge to continue, and may at his or her discretion order an immediate cessation of all discharge from the facility. In any case, the Wastewater Discharge ORDINANCE NO. 1059 PAGE 18 OF ~.5 Permit of the facility may be amended so as to compel more frequent pumping and cleaning of the interceptor. (c) All interceptors shall be maintained by the grease generator at the grease generator's expense. (d) Requirement for Increased Pumpage or Servicing If the Director finds that a change in pumpage or servicing of an interceptor is necessary for an establishment to meet the discharge limits stated in this Ordinance, the Director may order a change in pumpage or servicing of an interceptor. If the Director orders a change in the pumpage or servicing, then the Director shall serve notice of such order upon the generator. Within ten (10) days of receipt of such order, the generator may demand a hearing to review such order, in which case the Director shall schedule a hearing to review such order within thirty (30) days of receiving the demand for review from the generator. If a hearing to review the order is scheduled, the Director shall serve notice of the hearing to review such order at least ten (10) days before the date of such hearing. At the hearing to review the order, the generator may present evidence, and the Director may make new findings and issue new orders concerning the subject of the original hearing. After receiving notice of an order by the Director to change the frequency and/or methods of pumpage or servicing, it shall be unlawful for a generator to allow or cause any discharge into the sanitary sewer (PLANT) not in compliance with such order. (e) Interceptor Maintenance Log. Every generator having an interceptor shall maintain an Interceptor Maintenance Log indicating each pumping for the previous twelve (12) months. This log shall include the date, time, amount pumped, hauler and disposal site, and shall be kept in a conspicuous location on the premises of the facility for inspection. Said log shall be made immediately available to any authorized City inspector. Cleaning Procedures = The owner or an employee of the facility shall supervise the interceptor cleaning, and shall be physically present and observe the entire cleaning operation. . A generator shall cause the liquid waste hauler, transporter, or any other person cleaning or servicing an interceptor to completely evacuate all contents, including floating materials, wastewater, and bottom sludges and solids, of all grease and/or grit interceptors and other interceptors during servicing. Skimming the surface layer of waste material, partial cleaning of the interceptor or use of any method that does not remove the entire contents of the collection device is prohibited. The suction of the floating materials shall be done prior to removal of other contents. After ORDINANCE NO. 1059 PAGE 19 OF 2.5 complete evacuation, the walls, top, and bottom of the interceptor shall then be thoroughly scraped and the residue removed. Upon completion of the servicing, the manager of the facility shall make an inspection of the interior of the interceptor and then personally sign the trip ticket. The manager shall make an appropriate entry in the facility Interceptor Maintenance Log, and post the generator section of the trip ticket in a conspicuous place with the log on the premises. It shall be unlawful for a generator to allow, the discharge of liquid, semi- solids, or solids back into an interceptor during and/or after servicing. Decanting or discharging of removed waste back into the interceptor from which the waste was removed or any other interceptor, for the purpose of reducing the volume to be disposed, is prohibited. , Each interceptor pumped shall be fully evacuated unless the interceptor volume is greater than the tank capacity on the vacuum truck in which case the transporter shall arrange for additional transportation capacity so that the interceptor is fully evacuated within a twenty four (24) hour period following the transporter's inability to fully evacuate the interceptor. (g) Disposal of Interceptor Pumpage. All waste removed from each interceptor shall be disposed of at a facility permitted and authorized to receive such waste in accordance with all applicable Federal, State, and local regulations. In no way shall the pumpage be returned to any private or public portion of the PLANT, ORDINANCE NO. 1059 PAGE 20 OF 25 §3798M: PERMIT REQUIREMENTS: (a) It is unlawful for any facility to discharge effluent from a grease interceptor without authorization from the Director. Authorization shall be given in the form of a "Grease Interceptor Permit." Application for a permit shall be made to the Director. If, after examining the information contained in the grease interceptor permit application, it is determined by the Director that the proposed discharge does not conflict with the provisions of this Article, or any other Federal, State, or local requirement or regulation, and the permit fee is paid, a permit shall be issued allowing the facility to discharge into the PLANT. Each grease interceptor permit shall be issued for a time not longer than one year from the date of the permit. The grease generator shall apply for permit reissuance prior to the expiration of the grease generator's existing permit. The terms and conditions of the permit may be subject to modification by the Director at any time during the term of the permit as limitations or requirements as identified in this chapter are modified or other just causes exist. The grease generator shall be informed of any proposed changes in the issued permit at least thirty days prior to the effective date of the change(s). Any changes or new conditions in the permit shall include a reasonable time schedule for compliance. (b) As a condition precedent to the granting of a permit, the permittee under this section will agree to hold harmless the City and the City's employees from any liabilities arising from the permit holder's operations under this permit. §3798N: REQUIRED REPORTING: All permitted interceptor waste generators shall, at the time of permit renewal, submit to the Superintendent (a) Copies of all manifests made by liquid waste transporters servicing their grease interceptor during past year; (b) A copy of the Interceptor Maintenance Log; (c) A copy of the Interceptor Service Contract; and (d) Any other information required by the Grease Interceptor Permit, including analysis of the discharge to the PLANT of such pollutants as the Superintendent may require. §37980: MOBILE TREATMENT PROCESSES: Any person wishing to make use of a mobile treatment process or of an on-site process to clean or service grease interceptors or grit interceptors shall demonstrate the process to the satisfaction of the Director. Included with the demonstration shall be a written explanation of the treatment process. The person seeking approval of any such process shall pay, prior to any decision by the Director, any costs to the City associated with the demonstration, such as, ORDINANCE NO. 1059 PAGE 21 OF 25 but not limited to, sampling and analysis. Complete descriptions of the chemical composition of all products must be disclosed to the Director. §3798P: FACILITY CLOSURE: When a facility with a grease interceptor closes for business, and is subsequently: Razed or demolished, then any grease interceptor or interceptors or traps shall (a) be either: 1. Physically removed, or 2. Have all effluent pumped out, a straight line plumbed from the inlet to the outlet, and the remainder of the tank filled with soil or sand. (b) Remodeled such that the grease interceptor will not be used, then the grease interceptor or interceptors or traps may be left in place, however: 1. The grease interceptor or interceptors or traps shall have all effluent pumped out, the trap cleaned thoroughly, and the grease interceptor or interceptors or traps left dry and empty, and traps, and in 2. Be re-plumbed as to bypass the existing grease interceptor or interceptors or either by straight through or by bypassing methods, while leaving the empty trap place for possible future utilization by another business, or (c) Replaced with a type of business that will not utilize the grease interceptor, then that business may have any existing grease interceptor or interceptors or traps: 1. Physically removed, or 2. Re-plumbed as to bypass the existing grease interceptor or interceptors or traps, either by straight through or by bypassing methods, while leaving the empty trap and in place for possible future utilization by another business, or 3. Re-plumbed with a straight line plumbed from the inlet to the outlet, and the remainder of the grease interceptor or interceptors or traps filled with soil or sand. In all instances, the owner of the premises shall appropriately inform the City and perform the closure at such a time so as to permit an inspector to be physically present during the removal or filling of the interceptor. §3798R: MONITORING, INSPECTION AND ENTRY: (a) It shall be unlawful for a grease generator, whether or not the grease generator possesses a Grease Interceptor Permit, to refuse to allow inspectors to enter their premises during reasonable hours to determine whether the grease generator is complying with all of ORDINANCE NO. 1059 PAGE 22 OF 2.$ the requirements of this Ordinance and permit or order issued hereunder. A grease generator shall allow the inspectors access to all parts of the premises for purposes of inspection, sampling, records examination and copying, and the performance of additional duties. Arrangements for the immediate access of the Inspector shall have been made ahead of time, and such failure to make adequate arrangements shall not be considered a legitimate reason to refuse admittance of the Inspector. (b) In cases where a facility includes private living quarters, the right of access shall extend to all common areas, and any other area or areas a facility employee, including the manager and/or owner, may enter without expressed permission of the residents of such a facility. §3798S: REPORTING: All written reports, applications, and any other such material required of those regulated under this Article will be deemed to have been submitted on the date postmarked. For material which is not deposited, postage prepaid, into a mail facility serviced by the United States Postal Service, the date of receipt shall govern. §3798T: FEES: The City may adopt and amend charges, surcharges, and fees for application, operation, enforcement, administration, and reimbursement of costs incurred pursuant to this Article. Fees: (a) (b) The Director, with the approval by resolution of the City Council, shall establish permit fees under this Article. The fees for such permits shall be for a permit issued for a period of one year. The Director may prorate the amounts for permits with shorter durations. All permits will expire at 12:00 midnight on the date specified on the permit as determined by the Director. §3798U: VIOLATION. (a) It is unlawful for any grease generator to discharge into the PLANT in any manner that is in violation of this Article, or of any condition set forth in this Article. Additionally, a person commits an offense if the person causes or permits the plugging or blocking of, or otherwise interferes with or permits interference with a grease interceptor or the PLANT, including alteration or removal of any flow constricting devices so as to cause flow to rise above the design capacity of the interceptor. (b) No person, and/or facility shall discharge grease to the PLANT, except as expressly authorized by this Article. If such discharge occurs, the person or facility shall be considered in violation of this Article and subject to the remedies described herein. This ORDINANCE NO. 1059 PAGE 23 OF 2.5 includes non-permitted facilities. (c) The Director and/or City may suspend water or sewer service when such suspension is necessary, in the opinion of the Director, in order to stop an actual or threatened discharge which: Presents or may present an imminent or substantial endangerment to the health or welfare of persons or the environment; . Causes stoppages or excessive maintenance to be performed to prevent stoppages in the sanitary sewer collection system; 3. Causes interference to the PLANT; or 4. Causes the City to violate any condition of its NPDES permit. (d) Any person notified of a suspension of the water or sewer service shall immediately stop or eliminate the discharge. In the event of a failure of the person to comply voluntarily with the suspension order, the City shall take such steps as it deems necessary, including immediate termination of water or sewer service, to prevent or minimize damage to the PLANT system or sewer connection or endangerment to any individuals. The City shall reinstate the water or sewer service when such conditions causing the suspension have passed or been eliminated. A detailed written statement submitted by the grease generator describing the cause(s) of the harmful discharge and the measure(s) taken to prevent any future occurrence shall be submitted to the City within fifteen (15) days of the date of occurrence. (e) In addition to prohibiting certain conduct by natural persons, it is the intent of this Article to hold a corporation, association, LLC, LLP, PS or other entity or organization legally responsible for prohibited conduct performed by an agent acting on behalf of such an entity and within the scope of his office or employment. (f) A permittee is liable to the City for any expense, loss, or damage incurred or suffered by the City for reason of appropriate clean-up and proper disposal of said waste materials. Additionally, an administrative fee equal to one-half (1/2) of assessed clean-up costs shall be levied by the City against the guilty party. (g) The City may recover the fees and costs imposed by this Section in a civil action and may pursue any other remedy available at law or inequity to address a violation of this Article or to enforce compliance with it. §3798V: AUTHORIZATION: The Director is authorized to promulgate such rules and regulations as shall be reasonable and necessary to carry out the provisions of this chapter according to its terms and intent. ORDINANCE NO. 1059 PAGE 24 OF §3798W: SEVERABILITY: If any part or parts of this Article shall be held to be invalid, such invalidity shall not affect the remaining parts of this Article. The City Council declares that it would have passed the remaining parts of this Article, if it had known that such part or parts thereof would be declared invalid. SECTION THREE This Ordinance' shall become effective thirty (30) days after adoption. Introduced by title only on September 1, 2004, by the following roll call vote: AYES: NOES: ABSENT: ABSTAIN: Councilmembers Rodin, Andersen, Smith, and Vice-Mayor Baldwin. None. Mayor Larson. None. Adopted on September 15, 2004 by the following roll call vote: AYES: NOES: ABSENT: ABSTAIN: Councilmembers Rodin, Andersen, Smith, Baldwin, and Mayor Larson None None None Eric Larson, Mayor ATTEST: ~ Gordon Elton, City Clerk ORDINANCE NO. 1059 PAGE 25 OF 25