Organic garbage may be disposed of by grinding and finely shredding it and disposing of it through pipes leading to a public sanitary sewer; provided, that all garbage so disposed of in such pipes shall be ground or shredded to such a degree that all particles are carried freely under the flow conditions normally prevailing in the sewers into which the same is deposited. Nonorganic garbage shall not be deposited in the sewer. (Ord. 1989-8; amd. 2005 Code)