Waste discharge in food service establishments from fixtures and equipment which may contain grease; including, but not limited to, scullery sinks, pot and pan sinks, pre-rinse/pre-wash sinks in dishwashing areas, wok stoves, self-cleaning stove ventilation/exhaust hood, soup kettles, mop sinks, food prep sinks, and floor drains located in areas where grease-containing materials may exist, may be discharged into the sanitary sewer collection system only under the conditions of this chapter. 

When grease-containing materials are processed through garbage grinders, the waste from said garbage grinders should be directed to the grease interceptor. The director must approve garbage grinder disposal installations. An additional 30 percent of wetted volume will be added to the calculated size of the grease interceptor that is to receive garbage grinder waste. 

Toilets, urinals, dishwashers, and other similar fixtures shall not discharge through the grease interceptor unless specifically approved, in writing, by the director. 

All waste shall enter the grease interceptor through the inlet pipe only. 

Unless otherwise expressly stated, or the context clearly indicates a different intention, the following terms shall, for the purpose of this chapter, have the meaning indicated in this section: 

(a)   Automatic grease removal device means units, which use devices such as belts, wheels, or skimmers to actively remove the floatable grease from the waste stream. Typical devices include a moving belt entering and exiting a trapped volume of wastewater. The mechanism captures the grease, which is deposited into a separate holding container. 

(b)   Building discharge line system means a sewer line or lines maintained and controlled by private persons for the purpose of conveying sewage from the waste producing location to the sanitary sewer collection system. 

(c)   Common grease interceptor means an interceptor to which grease wastes are directed from more than one facility having different operators or type of operations, such as in a multi-tenant building. 

(d)   Director means the Director of Public Works or designee, who has been given the administrative authority to enforce this chapter. 

(e)   Food service establishment means any facility which cuts, cooks, bakes, prepares or serves food, or which disposes of food-related wastes; including, but not limited to, food manufacturers and packagers, restaurants, grocery stores, bakeries, lounges, hospitals, hotels, nursing homes, churches, schools, festivals, and amusement parks. 

(f)   Garbage grinder means a device, which shreds or grinds up solid or semisolid waste materials into smaller portions for discharge into the sanitary sewer collection system. 

(g)   Generator means a user, by site, who produces wastes from the user’s process operations. The generator is responsible for assuring that the produced waste is disposed of in accordance with all federal, state and local disposal regulations. 

(h)   Gravity grease interceptor means a device that is constructed to intercept oily and greasy wastes from a food service establishment kitchen and food preparation area. Typical installation is located outside and in-ground as close to the kitchen fixtures as possible while allowing for accessibility for inspections and maintenance. 

(i)    Grease means a material composed primarily of fatty matter from animal or vegetable sources or from hydrocarbons of petroleum origins. The terms “oil and grease” or “oil and grease substances” shall be deemed as grease by definition. 

(j)    Grease interceptor means a plumbing appurtenance that is installed in a sanitary drainage system to intercept oily and greasy wastes from a wastewater discharge. The device is constructed as to intercept, separate and hold, free-floating oil and grease substances in order to keep oil and grease substances from entering the sanitary sewer collection system. 

(k)   Multi-tenant building means a facility with spaces for two or more tenants, including but not limited to

Grease interceptors shall be constructed at a minimum of 1,000 gallon, two compartments with fittings designed for grease retention. Other grease devices or technologies not meeting the gravity grease interceptor definition shall be subject to the written approval of the director.  Such approval shall be based on demonstrated removal efficiencies of the proposed technology. Hydro mechanical grease interceptors, also known as “Under the sink” grease interceptors, shall not be approved.

Access manholes, with a minimum diameter of 24 inches, shall be provided over each chamber and sanitary tee. The access manholes shall extend at least to finished grade and shall be designed and maintained to prevent water inflow or infiltration. The manholes shall also have readily removable traffic bearing covers to facilitate inspection, grease removal, and wastewater sampling activities.

There shall be an adequate number of access points for cleaning and inspecting all areas of the grease interceptor. Manhole covers shall be gas tight in construction. In areas where additional weight loads may exist, the grease interceptor shall be designed to have adequate load-bearing capacity. 

Each grease interceptor shall be so installed and connected that it shall be at all times easily accessible for inspection, cleaning and removal of the intercepted grease. A gravity grease interceptor may not be installed in any part of a building where food is handled. Location of the grease interceptor shall meet the approval of the director. Multiple gravity grease interceptors installed at a single location shall be installed in series. 

All new construction multi-tenant buildings shall include a separate waste line for each leasable space that discharges to a common interceptor. This waste line shall be permanently marked to identify it as required by the director. When a space is leased, sold, or rented to a food service establishment, all kitchen drains and any other drains that may carry grease waste shall be connected to this waste line; no domestic sewage may be connected to this line. The property owner shall be responsible for proper maintenance of this interceptor in accordance with the provisions of this ordinance. Festivals and amusement parks shall be considered a single facility for the purpose of this article. 

(a)   New Facilities: On or after the effective date of the ordinance codified in this chapter, all food service establishments which are newly proposed, constructed, undergoing a change of ownership, or existing facilities which shall be expanded or renovated to include a food service establishment where such facilities did not previously exist, shall be required to have an approved gravity grease interceptor. Such food service establishments shall submit drainage plumbing plans to the director or designee for approval prior to obtaining a building permit. The director shall approve the prerequisite for an approved, properly sized, type and location of the gravity grease interceptor. 

(b)   Existing Facilities: On or after the effective date of the ordinance codified in this chapter, all existing food service establishments shall be required to install an approved, properly operated and maintained gravity grease interceptor within 120 days of notification by the city that any of the following conditions exist: 

(1)   The facilities are found by the director to be contributing grease in quantities sufficient to cause sanitary sewer line stoppages or to necessitate increase maintenance on the sanitary sewer collection system in order to keep main line stoppages from occurring. 

(2)   Remodeling of the food preparation or kitchen waste plumbing facilities which are subject to a permit issued by the Public Works Department. The compliance date under this subsection (b), will be determined by the director. 

(c)   Extensions: Any requests for extensions to these required installation dates must be made in writing to the director at least seven days in advance of the compliance date. The written request shall include the reasons for the user’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 taken to avoid future delays. 

(a)   Pumping. All grease interceptors shall be maintained by the user at the user’s expense. Maintenance shall include the complete removal of all contents, including floating materials, wastewater, and bottom sludge and solids. Decanting or discharging of removed waste back into the interceptor from which the waste was removed or any other grease interceptor, for the purpose of reducing the volume to be disposed, is prohibited. 

(b)   Pumping Frequency. Grease interceptors must be pumped out completely a minimum of once every 90 days, or more frequently as needed, to prevent carryover of grease into the sanitary sewer collection system, unless it can be demonstrated to the director that the pumping frequency can be extended past the three-month period. 

(c)   Disposal of Grease Interceptor Pumpage. All waste removed from each grease interceptor must be disposed of at a facility permitted to receive such waste in accordance with the provisions of this chapter. In no way shall the pumpage be returned to any private or public portion of the sanitary sewer collection system or the sewage treatment plants, without prior written approval from the director. 

(d)   Additives. Any additive(s) placed into the grease interceptor or building discharge line system on a constant, regular, or scheduled basis shall be reported to the director. Such additives shall include, but not be limited to, commercially available bacteria or other additives designed to absorb, purge, consume, treat or otherwise eliminate grease and oils. Additives containing enzymes are prohibited. The use of additives shall in no way be considered as a substitution to the maintenance procedures required herein. 

(e)   Physical integrity. All grease interceptors shall be maintained in operable condition and to meet the criteria described in Section 15-802 at all times. The integrity of the baffle wall separating the two compartments shall be maintained; rebar shall not be exposed, and grease interceptors with leaks or holes shall be repaired or replaced at the discretion of the director. 

(a)   Manifest. All pumpage from gravity grease interceptors must be tracked by a manifest, which confirms pumping, hauling and disposal of waste. This manifest shall contain the following information: 

(1)   Generator information: 

Name 

Address 

Volume pumped 

Date and time of pumping

Amount of floatable grease and settable solids in inches 

Total liquid depth in inches, including grease and solids 

Signature of generator verifying generator information 

(2)   Transporter information: 

Company name

Address 

Driver name and signature verifying transporter information 

(3)   Receiving facility information: 

Facility name

Address 

Date and time of receiving signature verifying receipt of waste 

Upon receipt of the waste, the receiving facility shall send one copy of each manifest to the following address: Wastewater Superintendent, 401 S. Jane St., Haysville, Kansas, 67060. 

(b)   Maintenance Log. A grease interceptor log shall be maintained for each grease interceptor, including automatic grease removal devices and hydro mechanical grease interceptors. This log shall include the date, time, amount pumped, hauler and disposal site, and monthly inspection results of the floatable grease and settable solids levels in inches and shall be kept in a conspicuous location for inspection. Said log shall be made immediately available to any representative of the Public Works & Utilities Department upon request. 

(c)   Reporting. The information required in the maintenance log must be submitted by the permitted food service representative to the wastewater utility every 15 th day of the month following each quarter-year period. The report shall be submitted within fifteen days after the end of the reporting period to the pretreatment administration. 

(a)   Monitoring. When required for the purposes of this chapter, the user shall provide, operate and maintain, at user’s expense, safe and accessible monitoring facilities (such as a suitable manhole) at all times to allow observation, inspection, sampling and flow measurement of the building sewer or internal drainage systems. When the physical location and hydraulic conditions are suitable, a manhole or similar facility existing on the sanitary sewer collection system may be utilized as the user’s manhole when agreed to by both the user and the director. 

(b)   Inspection and Entry. Authorized personnel of the city, bearing proper credentials and identification, shall have the right to enter upon all properties subject to this chapter, at any reasonable time and without prior notification, for the purpose of inspection, observation, measurement, sampling, testing or record review, in accordance with this chapter. 

The 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: 

(a)   Presents or may present an imminent or substantial endangerment to the health or welfare of persons or the environment; 

(b)   Causes stoppages, or excessive maintenance to be performed to prevent stoppages, in the sanitary sewer collection system; 

(c)   Causes interference to the POTW; or 

(d)   Causes the city to violate any condition of its NPDES permit.

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 deemed necessary, including immediate termination of water or sewer service, to prevent or minimize damage to the POTW 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 user describing the cause(s) of the harmful discharge and the measure(s) taken to prevent any future occurrence shall be submitted to the Pretreatment Administrator within fifteen days of the date of occurrence. 

It is unlawful for any user to discharge into the sanitary sewer collection system in any manner that is in violation of this chapter or of any condition set forth in this chapter. 

The director shall have the administrative authority to enforce this chapter. Whenever the city finds that any user has violated or is violating this chapter, or any prohibition, limitation, or requirements contained herein, the director will implement the Fats, Oils, and Grease Program enforcement response plan. Enforcement response necessary to initiate corrective action may include but not be limited to the following: 

(a)   Notice of Violation. The city may serve upon any user a written notice stating the nature of violation. Within 15 days of the date of notice, a plan for the satisfactory correction thereof shall be submitted to the director by the user. 

(b)   Administrative Order. When the director finds that a user has violated or continues to violate the provisions set forth in this chapter, or the order issued there under, the director may issue an order for compliance to the user responsible for the discharge. Orders may contain any requirements as might be reasonable, necessary and appropriate to address the noncompliance; including, but not limited, to the installation of pretreatment not technology, additional self-monitoring and management practices. 

(c)   Consent Order. The director is empowered to enter into consent orders, assurances of voluntary compliance or other similar documents establishing an agreement with the user responsible for noncompliance. Such orders will include specific action to be taken by the user to correct the noncompliance within a time period specified by the order. Consent orders shall have the same force and effect as administrative orders issued pursuant to subsection (b) of this section. 

Notwithstanding any other remedies or procedures available to the city, any user who is found by the Director of Public Works or designee to have violated any provision of this chapter, or any permit or any order issued hereunder, may be assessed an administrative penalty of not to exceed $1,000.00 per violation. Each day on which noncompliance shall occur or continue shall be deemed a separate and distinct violation. Such assessment may be added to the user’s next scheduled sewer service charge and the city shall have such other collection remedies as are available at law. 

Any person, persons or business found in violation of this section, shall be guilty of a misdemeanor, and upon conviction thereof shall be fined in an amount not exceeding $1,000 for each violation; each day in which such violation shall continue shall be deemed a separate offense. Any person in violation of this section shall become liable to the city for any expense, loss or damage occasioned to the city by reason of such violation.