No wastes from slaughterhouses or meat packing plants shall be allowed to enter any drain or wasteway. Recommended methods of disposal are:

1. (1) In all cases, blood, paunch manure, fleshings and grease shall be collected for rendering or some other type of utilization.
2. (2) Wastes from small operations after complying with subsection (1) above may be accepted in city sewer system or may be treated by a combination grease trap-septic tank and drain field.
3. (3) Wastes from large plants after complying with subsection (1) above may be treated by filtration and the effluent used for irrigation but not discharged to a canal, drain or wasteway.

[Rule .04.243 (C)(3), filed 3/1/60.]