SECTION 217.120. General Preliminary Treatment Requirements

(a) A wastewater treatment facility must be designed with the ability to add provisions for removing fats, oils, and grease (FOG) from the wastewater.

(b) If fats, oils, or grease have caused operational failures in a treatment unit that is being altered, then FOG removal must be provided to prevent future failures.

(c) The headworks of a wastewater treatment facility must have a screening device or a grinding device.

(1) Screening devices include coarse screens and fine screens.

(2) Grinding devices include grinder pumps, and other grinding devices approved in writing by the executive director.

(d) A screening device or grinding device must not be housed in the same structure as an office or any other work area unless the area housing the screening device or grinding device is separated from the rest of the structure by an air-tight partition.

(e) Each enclosure that houses a screening device or grinding device and is accessible to individuals must have a vent fan capable of providing at least 30 complete air exchanges per hour.

(f) Each screening device or grinding device must be readily accessible for maintenance and screenings removal.

(g) Any screening device located 4.0 feet or more below ground level must include mechanical equipment capable of lifting the screenings to ground level.

(h) Screenings must be collected, managed, and disposed of in accordance with §217.123 of this title (relating to Screenings and Debris Handling) at a frequency that prevents creation of a nuisance.

Source Note: The provisions of this §217.120 adopted to be effective December 4, 2015, 40 TexReg 8254