(a) 
Treatment devices shall be provided for the proper handling of wastes containing fats, oils and grease, flammable wastes, sand and other pollutants which may be harmful to the non-domestic user's building sewer system or the wastewater collection system for the following:
(1) 
Food service establishments (FSEs) not specifically exempted by section 13.07.764;
(2) 
Vehicle wash facilities;
(3) 
Automotive repair facilities including, but not limited to: machine shops or any facility or part of a facility which manufacturers, rebuilds, repairs, overhauls, or maintains motors, transmissions, hydraulic systems, or similar facilities where fluids are changed, shall not have floor drains or other devices draining to the wastewater collection system.
(A) 
Areas described above shall be physically separated, either by berm, separate buildings, or other suitable method from any area with drains connected to the wastewater collection system.
(B) 
Drainage from areas described above shall be discharged into a holding tank or shall be picked up with a suitable absorbent and disposed of properly.
(4) 
Garages and service stations shall be equipped with a separator.
(5) 
Carpet cleaning and extraction facilities will ensure efficient removal of the non-biodegradable sand and grit.
(6) 
Laundries shall be equipped with a manufacturer's recommended lint and/or solids removal device to reduce the quantity of lint and silt that enters the wastewater collection system.
(7) 
Bottling establishments shall be equipped with an interceptor that will provide for the separation of broken glass or other solids before discharging into the wastewater collection system.
(8) 
Slaughterhouses including, but not limited to: those areas used for slaughtering or dressing shall be equipped with a separator that will prevent the discharge of feathers, entrails and other materials that cause clogging.
(9) 
Mobile food units as defined in section 13.07.762(b)(25).
(b) 
Interceptors or other treatment devices installed for laundries, bottling establishments, slaughterhouses, or other facilities with the potential to discharge large solids must include a wire basket, screen or similar device, removable for cleaning, that prevents the passage into the wastewater collection system of solids 0.5 inches (12.7 mm) or larger in size, strings, rags, buttons, or other materials detrimental to the wastewater collection system.
(c) 
The city may require non-domestic users to implement additional pretreatment measures as required in section 13.07.392 of this article.
(d) 
Any non-domestic user requesting an exemption from requirements to install an interceptor or other treatment device shall contact the city's pretreatment services department to determine what information is needed to apply for an exemption.
(Ordinance 5523, sec. 2, adopted 11/3/08; Ordinance 6459 adopted 1/21/22)
(a) 
A non-domestic user seeking a certificate of occupancy for an existing facility may propose the use of an alternate grease removal device (AGRD) or other technologies in lieu of a passive treatment device as defined in section 13.07.803 under the following conditions:
(1) 
The peak flow or total hydraulic loading from all fixtures discharging to the AGRD shall be calculated using the drainage fixture unit sizing method as described in section 13.07.803 of this division;
(2) 
The calculated total hydraulic loading to the AGRD cannot exceed the manufacturer's design capacity;
(3) 
The installation of an AGRD shall include solids straining capability either designed into the device or installed upstream from the device as specified by the manufacturer; and
(4) 
Dishwashers or food waste grinders shall not be connected to alternate grease removal devices.
(b) 
Alternate grease removal devices or technologies may include, but are not limited to dissolved air flotation, system baffling, active devices, automated grease removal devices, electronic alarms and shut offs or any combination of devices and procedures that in the opinion of the city will generate a discharge in compliance with this division.
(c) 
Proposals for the installation of alternate grease removal devices or technologies shall be made in writing to the city and shall contain manufacturer's specifications, calculations or other documentation necessary to demonstrate treatment capabilities sufficient to maintain compliance with this division. Proposals shall be signed by a registered professional engineer.
(d) 
Alternate grease removal devices or technologies shall be approved by the city in writing prior to the commencement of the installation. This approval by the city in no way endorses the design, device, or its performance, or relieves the user of responsibility to comply with requirements specified in this division.
(e) 
Where the user proposes alternate grease removal devices or technologies, the city may require data demonstrating the user is able to comply with the limitations or other requirements outlined in this division. The user may also be subject to periodic monitoring to demonstrate continued compliance.
(f) 
Installed alternate grease removal devices or technologies shall be maintained in an efficient operating condition and shall consistently produce an effluent in compliance with requirements of this division as demonstrated by analytical data or other requirements specified by the city.
(g) 
The decision of the city to disapprove the use of alternate grease removal devices or technologies shall be final.
(Ordinance 5523, sec. 2, adopted 11/3/08; Ordinance 6459 adopted 1/21/22)
(a) 
Bioremediation media may be used with the city’s approval if the person has proven to the satisfaction of the city that laboratory testing which is appropriate for the type of treatment device to be used has verified that:
(1) 
The media is a pure live bacterial product, which does not contain any surfactants, emulsifiers, or substances which act as a solvent or is not inactivated by the use of domestic or commercial disinfectants and detergents, strong alkalis, acids, other additives commonly used in the facility, and/or water temperatures greater than 160°F (71°C);
(2) 
The use of the media does not reduce the buoyancy of the oil or grease layer in the treatment device and does not increase the potential for oil and grease to be discharged to the wastewater collection system;
(3) 
The use of bioremediation media does not cause foaming, downstream coalescence, or blockages in the wastewater collection system;
(4) 
The BOD5, COD, and TSS levels discharged to the wastewater collection system after the use of the media does not exceed the BOD5, COD, and TSS levels which would be discharged if the product were not used and the treatment device was properly sized and maintained; and
(5) 
The use of the bioremediation media does not cause the pH levels to exceed allowable pH limits at the total facility discharge point.
(b) 
All testing designed to satisfy the criteria set forth in this section shall be scientifically sound and statistically valid. All tests to determine oil and grease, BOD5, COD, TSS, pH and other pollutant levels shall be based on approved methods as defined in 40 CFR, Part 136 or 30 TAC § 319.11.
(1) 
Testing shall be open to inspection by the city, and shall meet the city’s approval.
(2) 
The costs of all tests shall be the responsibility of owner/operator of the treatment device.
(c) 
The approval of alternate treatment products such as bioremediation media shall be made on a case-by-case basis. If a product is accepted for use by the city, each user shall be subject to the requirements of this section and shall obtain written permission from the city to use the product.
(d) 
The city may revoke permission to use alternate treatment products where the effluent from a user’s treatment device in which the product is used fails to meet the requirements of this division.
(e) 
The use of alternate treatment products shall not relieve the user of minimum pumping, cleaning and inspection requirements specified in this division.
(f) 
Any waste pumped from the treatment device after use of the media must be acceptable at disposal sites for that particular type of wastes.
(g) 
The decision of the city to disapprove the use of alternate treatment options shall be final.
(Ordinance 5523, sec. 2, adopted 11/3/08; Ordinance 6459 adopted 1/21/22)
(a) 
The city may require non-domestic users to implement best management practices established in the FOG control program to reduce and/or eliminate:
(1) 
The discharge of fats, oils and grease, flammable wastes, sand and other objectionable wastes from entering the wastewater collection system; or
(2) 
Inflow or infiltration from stormwater sources that discharge into the user’s building sewer system, treatment devices, or other connections to the wastewater collection system.
(b) 
Food service establishments and insignificant food service establishments may be required to implement one or more of the following best management practices, when required in this division:
(1) 
Structural BMPs that require a physical device, appurtenance, or container to be installed or removed.
(2) 
Non-structural BMPs that depend on a non-domestic user's employee, operator and/or owner to implement pollution prevention measures or other practices necessary to comply with requirements of this division.
(c) 
The city may require non-domestic users other than food service establishments to implement similar best management practices when in the opinion of the city, these practices are necessary to comply with requirements established in this division or other sections of this article.
(Ordinance 5523, sec. 2, adopted 11/3/08; Ordinance 6459 adopted 1/21/22)
(a) 
Any user that is required to install, operate or maintain a treatment device as specified in this division shall install a sample port as approved by the city.
(b) 
The city may require non-domestic users to install meters, manholes, sample ports and other appurtenances to facilitate observation, sampling, and measurement of wastes and flows discharged as specified in section 13.07.177 of this article.
(c) 
Sample ports shall be readily accessible to the city at all times.
(Ordinance 5523, sec. 2, adopted 11/3/08)
(a) 
Food service establishments.
(1) 
Holding tanks shall be provided for storage of any yellow grease including used cooking oil, fryer grease or any other recycled oil, grease or objectionable waste that does not originate from an interceptor or trap.
(2) 
Holding tanks shall be constructed to prevent leakage and splashing and shall be maintained to preclude odors and other nuisances.
(3) 
Holding tanks shall not be connected to the wastewater collection system or in any way be allowed to discharge to the wastewater collection system or the MS4.
(b) 
Other non-domestic users.
(1) 
Appropriate holding tanks or containers shall be used to store waste oils, antifreeze and other objectionable wastes prior to recycling or disposal at a site approved by the appropriate regulatory agency.
(2) 
Holding tanks shall be constructed to prevent leakage and splashing and shall be maintained to preclude odors and other nuisances.
(3) 
Holding tanks shall not be connected to the wastewater collection system or in any way be allowed to discharge to the wastewater collection system or the MS4.
(Ordinance 5523, sec. 2, adopted 11/3/08)