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Each rendering facility shall comply with the operational requirements set forth in this Section.

(1) All equipment and associated duct work shall be designed and maintained in a leak-free manner to prevent the escape of odorous emissions to the atmosphere.

(2) All emission points for unreasonably offensive or noxious odors shall be vented to the odor control system.

(3) The rendering process shall be totally enclosed and maintained under negative air pressure at all times. The air evacuation rate shall be such that during the months of March through October there are a minimum of twenty-five (25) exchanges of building air per hour for all buildings required to be under negative air pressure while the rendering process is in operation and for two (2) hours after the rendering process has ceased to operate. During hours that the rendering process is not in operation and for at least two (2) hours after the rendering process has ceased to operate, the evacuation rate may be reduced to twelve (12) exchanges of building air per hour. During the months of November through February the air exchange rates required above may be reduced by up to forty percent (40%) provided that such reduction does not result in any increase in unreasonably offensive or noxious odors being detected beyond the property line of the rendering facility.

(4) The rendering facility shall not operate unless the odor control system is operating and in full use.

(5) The odor control system shall operate in such a manner that unreasonably offensive or noxious odors are not detectable beyond the property line of the rendering facility. Complaints of offensive or noxious odors shall be investigated by the Development Services Department. When such investigation determines that a rendering facility emitted unreasonably offensive or noxious odors, the rendering facility shall be served with a notice of violation. Any rendering facility which receives six (6) such notices of violation in any twelve (12) month period shall be subject to license revocation as provided in Section 7.06.110, Provo City Code, in addition to any penalties resulting from the notices of violation.

(6) The odor control system shall be equipped with an alarm so as to alert personnel of a breakdown.

(7) The Provo City Development Services Department shall be notified within two (2) hours of any breakdown that allows the release of odors to the atmosphere. If any such breakdown occurs on a weekend, holiday, or at night, notification shall then be before 9:00 a.m. on the next business day.

(8) Openings and doors to the rendering facility shall remain closed at all times, except during actual entry or exit of trucks and/or personnel. All doors shall be equipped with closers that will ensure positive door closure.

(9) No gases, vapors or gas-entrained effluents resulting from the rendering process shall be emitted to the atmosphere unless:

(a) 

(i) Incinerated in such a manner as to ensure that all unreasonably offensive or noxious odors are consumed in the process; and

(ii) Any remaining gases, vapors or gas entrained effluents not consumed by incineration together with all air collected from within the rendering facility shall be processed and treated by a room air scrubber of sufficient capacity to ensure the minimum air exchanges per hour detailed in Section 7.06.080(3), Provo City Code, and to remove all unreasonably offensive or noxious odors; or

(b) Treated by an alternative odor control process that has been formally approved by the Development Services Director and has been shown in other similarly situated rendering facilities to be effective in reducing the emission of unreasonably offensive or noxious odors to a level that would not be detected by reasonable people beyond the property line of the rendering facility. Such alternative odor control system shall include a room air scrubber system of sufficient size to ensure compliance with the foregoing standard. The Director of Development Services shall decide whether to approve such an alternative odor control process based upon findings that such process, including the room air scrubber, has been shown to be effective in reducing the emission of unreasonably offensive or noxious odors to a level that would not be detected by reasonable people beyond the property of the rendering facility. Any such decision may be appealed as provided by Chapter 3.06, Provo City Code.

(10) The rendering facility shall maintain compliance with all other state and federal regulations for air pollution control, waste water discharges, solid and hazardous waste control and disposal.

(11) All delivery trucks, trailers and any attendant containers used to carry renderable raw materials or dead animals shall be covered or carried within a covered truck or trailer and all dump doors, covers and valves shall be maintained to prevent any water, blood or other material from leaking or escaping in any manner during the transport and/or delivery of raw material. Any trucks, trailers or containers arriving at the rendering facility that are uncovered or leaking shall be immediately dumped and cleaned as provided in this Section and shall not be allowed to return to the rendering facility until repaired and/or operated in compliance with this Subsection.

(12) The rendering process shall be conducted in such a manner that complies with all applicable State and Federal regulations regarding the survival of disease producing organisms in the finished product.

(13) Each rendering facility shall adopt and maintain a detailed operating procedure which shall be followed by all officers and employees of the rendering facility. Such operating procedure shall include but not be limited to the following: daily and periodic cleaning of the facility to minimize the emission of fugitive odors from within the buildings, appearance and cleanliness of the outside of the plant and cleanup of spilled raw material and grease. Each rendering facility shall provide Provo City with a copy of the operating procedures.

(Enacted 1999-47, Am 2020-57, Am 2022-17)