§ 78-86. Definitions.

The following words, terms and phrases, when used in this article, 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) or parts per million (ppm).

EPA means the Environmental Protection Agency.

Industrial user means any nongovernmental user of the city's treatment facility identified in the Standard Industrial Classification (SIC) Manual (Office of Management and Budget, 1972) as amended and supplemented under the following divisions:

(1)

Division A: Agriculture, Forestry and Fishing.

(2)

Division B: Mining.

(3)

Division D: Manufacturing.

(4)

Division E: Transportation, Communications, Electric, Gas and Sanitary Services.

(5)

Division I: Services.

Industrial waste means the liquid waste from industrial manufacturing processes, trades or businesses as distinct from sanitary sewage.

Nonprocessed waste means segregated domestic waste or wastes from sanitary conveniences.

Processed waste means that portion of the total wastewater discharge which remains after deducting nonprocessed, segregated domestic waste or waste from sanitary conveniences.

Sewage (normal) means sewage having the following limiting characteristics:

	mg/l
BOD (five-day at 20 degrees Celsius)	204
Suspended solids (total)	200
Nitrogen, as N (total)	30
Phosphorus, as P (total)	10

 

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.

Treatment facility means the city's treatment plan and associated facilities.

(Code 1988, § 22-66)

Cross reference

Definitions generally, § 1-2.