As used in this chapter:
(a) "Sewage works" means all facilities for collecting, pumping, treating and disposing of sewage.
(b) "Sanitary sewage" means a combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments, together with such ground, surface and storm waters as may be present.
(c) "Normal sewage" means sewage which when analyzed shows by weight a daily average of not more than 2,917 pounds (350 parts per million) of suspended solids; not more than 2,500 pounds (300 parts per million) of B.O.D. and not more than 417 pounds (50 parts per million) either soluble matter (grease and oil), each per million gallons of daily flow.
(d) "Sewer" means a pipe or conduit for carrying sewage.
(e) "Public sewer" means a sewer in which all owners of abutting properties have equal rights and which is controlled by public authority.
(f) "Combined sewer" means a sewer receiving both surface runoff and sewage.
(g) "Sanitary sewer" means a sewer which carries sewage and to which storm, surface and ground waters are not intentionally admitted.
(h) "Storm sewer" or "storm drain" means a sewer which carries storm and surface waters and drainage but excludes sewage and polluted industrial wastes.
(i) "Sewage treatment plant" means any arrangement of devices and structures used for treating sewage.
(j) "Cooling water" means the water discharged from any system of condensation, air conditioning, cooling, refrigeration or other such system but which shall be free from odor and oil. It shall contain no polluting substances which produce B.O.D. or suspended solids each in excess of ten parts per million by weight.
(k) "Industrial wastes" means the liquid wastes from industrial processes as distinct from sanitary sewage.
(l) "Garbage" means solid wastes from the preparation, cooking and dispensing of food and from the handling, storage and sale of produce.
(m) "Properly shredded garbage" means the waters from the preparation, cooking and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers with no particle greater than ½-inch in any dimension.
(n) "Building drain" means that part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer which shall begin three feet outside the inner face of the building wall.
(o) "Building sewer" means the extension from the building drain to the public sewer or other place of disposal.
(p) "B.O.D.", denoting "biochemical oxygen demand", means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in parts per million by weight.
(q) "pH" means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
(r) "Suspended solids" means solids that either float on the surface of, or are in suspension in water, sewage or other liquids; and which are removable by laboratory filtering.
(s) "Slug" means any water or waste exceeding a concentration greater than five times that of the "normal sewage", and which is discharged continuously for a period longer than ten minutes and/or at a rate exceeding 500 gallons per minute.
(t) "Unpolluted water or waste" means any water or waste containing none of the following: free or emulsified grease or oil, acid or alkali, phenols or other substances imparting tastes and odors in receiving water, toxic or poisonous substances in suspension, colloidal state or solution, and noxious odors or gases. It shall not contain more than 10,000 parts per million by weight of dissolved solids, of which not more than 2,500 parts per million shall be as chloride, with permissible volume subject to review by the superintendent of service; and not more than ten parts per million each of suspended solids and B.O.D. Color shall not exceed 50 parts per million.
(u) "Natural outlet" means any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
(v) "Watercourse" means a channel in which a flow of water occurs either continuously or intermittently.
(w) "Person" means any individual, firm, company, association, society, corporation or group.
(x) "Shall" is mandatory; "may" is permissive.
(Ord. 73-90. Passed 6-18-73.)
(y) "Lateral sewer" means a pipe or conduit for carrying sewage from a residence, business or industry to a trunk sewer.
(z) "Trunk sewer" means a pipe or conduit for carrying sewage collected from lateral sewers.
(Ord. 89-33. Passed 9-6-89.)