(A) 
Facilities generating fats, oils, or greases as a result of food manufacturing, processing, preparation, or food service shall install, use, and maintain appropriate grease traps or interceptors. These facilities include, but are not limited to, to restaurants, food manufacturers, food processors, hospitals, hotels and motels, prisons, nursing homes, and any other facility preparing, serving, or otherwise making any foodstuff available for consumption.
(B) 
Facilities generating motor oil, grease, sand, washwater, and other substances harmful or hazardous as a result of service and manufacturing businesses shall install, use and maintain appropriate grit traps or interceptors. These facilities include, but are not limited to car washes, auto repair, fueling stations, laundries and various manufacturing facilities.
(C) 
No user may intentionally or unintentionally allow the direct or indirect discharge of any petroleum oil, non-biodegradable cutting oil, mineral oil, or any fats, oils, or greases of animal or vegetable origin into the POTW system in such amounts as to cause interference with the collection and treatment system, or as to cause pollutants to pass through the treatment works into the environment.
(Ordinance 3243, adopted 8/5/2008)
(A) 
New facilities.
(1) 
Food processing or food service facilities which are newly proposed or constructed, shall be required to design, install, operate and maintain a grease trap/interceptor in accordance with locally adopted plumbing codes, the Carrollton Restaurants and Food Establishments code, the Carrollton Food Establishment Policy or other applicable ordinances and guidelines as required by the DCO. Grease traps/interceptors shall be installed and inspected prior to issuance of a certificate of occupancy and a health permit.
(2) 
Auto repair shops which are newly proposed or constructed with floor drain in areas of operation, shall be required to design, install, operate and maintain a grit trap/oil separator in accordance with locally adopted plumbing codes or other applicable ordinances and guidelines as required by the DCO. Grit traps/oil separators shall be installed and inspected prior to issuance of a certificate of occupancy.
(B) 
Existing facilities.
(1) 
Existing food processing or service facilities that change in ownership, or existing facilities which will be expanded or renovated to include a food service facility, where such facility did not previously exist or where there is an inadequately sized grease trap/interceptor, shall be required to design, install, and operate a grease trap/interceptor in accordance with locally adopted plumbing codes, the Carrollton Restaurants and Food Establishments code, the Carrollton Food Establishment Policy or other applicable ordinances and guidelines as required by the DCO. Grease traps/interceptors shall be installed and inspected prior to the issuance of a certificate of occupancy and a health permit.
(2) 
Existing auto repair shops with floor drains in the areas of operation that change in ownership, or expanded or renovated to include floor drains in areas of operation shall be required to design, install, and operate a grit trap/oil separator in accordance with locally adopted plumbing codes, or other applicable ordinances and guidelines as required by the DCO. Grit traps/oil separators shall be installed and inspected prior to the issuance of a certificate of occupancy.
(Ordinance 3243, adopted 8/5/2008)
(A) 
A generator of liquid waste shall have all liquid waste material picked up from his premises by a liquid waste transporter who holds a valid permit from the city and the liquid waste shall be transported to an approved site for disposal.
(B) 
Cleaning schedule.
(1) 
Grease traps/interceptors shall be cleaned as often as necessary to ensure that sediment and floating materials do not accumulate to impair the efficiency of the grease trap/interceptor; that the discharge is in compliance with local wastewater discharge limits; and, to ensure that no visible grease is observed in the discharge.
(2) 
Grease traps/interceptors shall be completely evacuated at a minimum of every 90 days, or more frequently when:
(a) 
Twenty-five percent or more of the wetted height of the grease trap or grease interceptor, as measured from the bottom of the device to the invert of the outlet pipe, contains floating materials, sediment, oils or greases;
(b) 
The discharge exceeds BOD, COD, TSS, FOG, pH, or other pollutant levels established by the DCO; or,
(c) 
If there is a history of noncompliance.
(3) 
Grit traps and oil separators shall be completely evacuated at a minimum of every 180 days, except for a grit trap located at a car wash which shall be completely evacuated at a minimum of every 90 days.
(C) 
Any person who owns or operates a grease trap/interceptor may submit to the DCO a request in writing for an exception to the 90-day pumping frequency of their grease trap/interceptor. The DCO may grant an extension for required cleaning frequency on a case-by-case basis when:
(1) 
The grease trap/interceptor owner/operator has demonstrated the specific trap/interceptor will produce an effluent, based on defensible analytical results, demonstrating consistent compliance with established local discharge limits such as BOD, TSS, FOG, or other parameters as determined by the POTW; or,
(2) 
Less than 25 percent of the wetted height of the grease trap or grease interceptor, as measured from the bottom of the device to the invert of the outlet pipe, contains floating materials, sediment, oils or greases.
(D) 
In any event, a grease trap and grease interceptor shall be fully evacuated, cleaned, and inspected at least once every 180 days. The DCO may also require traps to be serviced on a single event basis or schedule basis if the DCO deems it necessary for proper operation of the trap.
(E) 
In the event that the establishment ceases operation, the establishment is required to pump the trap before abandoning the property. If the owner of the business fails to empty the trap, it shall become the responsibility of the property owner.
(F) 
A generator of liquid waste shall not have hazardous waste or liquid waste in combination with hazardous waste removed from his premises by a liquid waste hauler operating under a city permit.
(G) 
A generator shall verify the accuracy of the trip ticket from the transporter and then legibly complete and sign the trip ticket, to certify the statements on the trip ticket, when a load is picked up by the transporter. The generator shall keep a copy of all trip tickets for a period of three years at the site of generation, unless otherwise approved by the city. The DCO may inspect and copy these records at any time.
(H) 
A generator of grease or grit trap waste shall:
(1) 
Install or provide a trap of a size and type specified or approved by the DCO;
(2) 
Maintain the trap in effective operating and sanitary conditions;
(3) 
Not install or utilize any system, process or pretreatment involving the use of enzymes, bacteria or other additives, nor alter the design or function of the trap without specific written approval of the city. Any costs to the city associated with a demonstration, such as, but not limited to sampling and analysis, shall be reimbursed to the city with applicable administrative fees; and.
(4) 
Supervise proper cleaning and complete removal of the contents of the trap.
(I) 
A generator shall maintain the grease trap/interceptor and its surrounding areas in sanitary conditions, free of litter and odors.
(J) 
A generator shall immediately report spills and accidents involving liquid waste to the DCO.
(K) 
A generator shall clean up all spills and abate all unsanitary conditions immediately, and have material used for abatement, such as absorbent materials, disposed of by approved means and in a timely manner.
(L) 
A generator of washwater or other liquid waste shall:
(1) 
Contain, collect and dispose of liquid waste by approved means;
(2) 
Protect the storm sewer system and the environment from discharges of liquid waste or other contaminates;
(3) 
Use approved methods for on-site or mobile treatment of liquid water; and,
(4) 
Accurately measure, by approved means, the volume of liquid waste collected and disposed of by the transporter.
(Ordinance 3243, adopted 8/5/2008)