A. “As builts” means the detailed sketch or drawing of the building sewer or disposal system as constructed.

B. “BOD” (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 degrees Centigrade, expressed in parts per million by weight.

C. “Building drain” means that part of the lowest horizontal piping of the drainage system which received the discharge from soil, wastes, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning two feet outside the wall.

D. “Combined sewer” means a sewer receiving both surface runoff and sewage.

E. “Garbage” means solid wastes from the preparation, cooking, and dispensing of food, and from the handling, storage and sale of produce.

F. “Industrial wastes” means the liquid wastes from industrial processes as distinct from sanitary sewage.

G. “May” is permissive.

H. “Natural outlet” means any outlet into a watercourse, pond, ditch, lake, or other body of surface or ground water.

I. “pH” means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.

J. “Properly shredded garbage” means the wastes 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 particles greater than one-half inch in any direction.

K. “Public sanitary sewer” means a sewer in which all owners of abutting properties have equal rights, and which is controlled by public authority.

L. “Sanitary sewer” means a sewer which carries sewage and to which storm, surface, and ground water are not intentionally admitted.

N. “Sewage treatment plant” means any arrangement of devices and structures used for treating sewage.

O. “Sewage works” means all facilities for collecting, pumping, treating and disposing of sewage.

P. “Sewer” means a pipe or conduit for carrying sewage.

Q. “Shall” is mandatory.

R. “Storm sewer” and “storm drain” mean a sewer which carries storm and surface waters and drainage, but excludes sewage and polluted water.

S. “Superintendent” means the person designated from time to time in accordance with personnel policies of the city, or his authorized deputy, agent, or representative.

T. “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.

U. “Watercourse” means a channel in which a flow of water occurs either continuously or intermittently. (Ord. 1185 § 1, 2010; Ord. 1107 § 1, 2007; Ord. 1087 § 1, 2007; Ord. 209 § 2, 1974).