§ 94-1. Definitions

The following words, terms and phrases, when used in this chapter, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:

BOD (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 Celsius, expressed in milligrams per liter (mg/l).

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, beginning five feet (1.5 meters) outside the inner face of the building wall.

Building sewer means the extension from the building drain to the public sewer or other place of disposal.

Combined sewer means a sewer receiving both surface runoff and sewage.

Garbage means solid wastes from the domestic and commercial preparation, cooking and dispensing of food, and from the handling, storage and sale of produce.

Industrial wastes means the liquid wastes from industrial manufacturing processes, trade or business, as distinct from sanitary sewage.

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

pH means the negative logarithm of the hydrogen ion concentration in gram equivalents per liter of solution.

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 particle greater than one-half inch (1.27 centimeters) in any dimension.

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

Sanitary sewer means a sewer which carries sewage and to which stormwater, surface water and groundwater are not intentionally admitted.

Sewage means a combination of the water-carried wastes from residences, business buildings, institutions, and industrial establishments, together with such groundwater, surface water and stormwater as may be present.

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

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

Sewer means a pipe or conduit for carrying sewage.

Shall is mandatory; "may" is permissive.

Slug means any discharge of water, sewage or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than five times the average 24-hour concentration or flows during normal operation.

Storm drain (storm sewer) means a sewer which carries stormwater and surface water and drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.

Superintendent means the water and wastewater superintendent of the city or his authorized deputy, agent or representative.

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.

Watercourse means a channel in which a flow of water occurs, either continuously or intermittently.

(Code 1975, § 23-1)

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Definitions and rules of construction generally, § 1-2.