Solid or viscous wastes. Solid or viscous wastes which
will or may cause obstruction to the flow in a sewer or otherwise
interfere with the proper operation of the sewer system. Prohibited
materials include, but are not limited to, grease, improperly shredded
garbage, animal guts or tissues, diseased human organs or tissue fluids,
paunch manure, bones, hair, hides or fleshing, entrails, whole blood,
feathers, ashes, cinders, sand, spent lime, stone or marble dust,
metal, glass, straw, shavings, grass clippings, rags, spent grains,
spent hops, waste paper, wood, plastic, tar, asphalt residues, residues
from refining or processing of fuel or lubricating oil, and similar
substances.