Petroleum
oil, non-biodegradable cutting oil or products of mineral oil origin
in amounts that will cause interference or pass through. Any solid
or viscous material in quantities capable of causing obstruction to
the flow in sewers or interference with the proper operation of any
portion of the wastewater system such as, but not limited to, the
following substances: ashes, wax, paraffin, cinders, sand, bones,
mud, straw, shavings, scrap metal, glass, rags, lint, feathers, tar,
plastics, wood, sawdust, paunch manure, hair and flesh, entrails,
whole blood, lime slurry, lime residues, acid residues, acetylene
generation sludge, grinding compounds, chemical or paint residues,
bulk solids, shredded paper, cardboard or similar wastes.