Grinding devices may be used in addition to screening devices if the following requirements are satisfied:
- (a) Grinding devices installed in addition to mechanical screening devices in a building where other equipment or offices are located shall be separated from the rest of the building, provided with separate outside entrances, and provided with mechanical ventilation; and
- (b) Grinding devices that are installed in addition to mechanical screening devices shall have slots no more than ¼-inch wide and be designed to cut or shred material below the surface of the sewage.
Source. (See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06; ss by #10693, eff 10-15-14; ss by #14258, eff 7-1-25, EXPIRES: 7-1-35