"Sewage" means the water carried waste products or discharges from human beings or from the rendering of animal products, or chemicals or other wastes from residences, public or private buildings, or industrial establishments, together with such ground, [...]

(4) "Sewage" means human excreta, all water carried wastes, and liquid waste, including graywater or similar waste by-products.

(23) "Sewage" means human body wastes and the waste from toilets and other receptacles intended to receive or retain body wastes.