For the purpose of this subchapter, the following definitions shall apply unless the context indicates or requires a different meaning.
BOD (DENOTING BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter by Standard Methods procedure in 5 days at 20ºC expressed in milligrams per liter (mg/l).
COD (DENOTING CHEMICAL OXYGEN DEMAND). A measure of the oxygen-consuming capacity of organic and inorganic matter present in wastewater as milligrams per liter (mg/l).
GARBAGE. Solid wastes from the preparation, cooking and dispensing of food, and from the handling, storing and sale of produce.
INDUSTRIAL LIQUID WASTES. All waterborne solids, liquids or gaseous wastes resulting from any industrial, manufacturing or food processing operation or process, or from the development of any natural resource, or any mixture of these with water or domestic sewage as distinct from normal domestic sewage. Industrial manufacturing processes shall include but are not limited to: ordnance and accessories; food and allied products; tobacco manufacturers, textile mill products; apparel and other finished products made from fabrics and similar materials; lumber and wood products, except furniture; furniture and fixtures; printing, slaughterhouse wastes, publishing and allied industries; chemicals and allied products; petroleum refining and related industries; rubber and miscellaneous plastics products; leather and leather products; stone, clay, glass and concrete products; primary metal industries; fabricated metal products, except ordnance, machinery and transportation equipment; machinery, except electrical; electrical machinery, equipment and supplies; transportation equipment; professional, scientific and controlling instruments; photographic and optical goods; watches and clocks; miscellaneous manufacturing industries.
INTERFERENCE WITH ANY WASTEWATER TREATMENT PROCESS. Any condition or combination of conditions which causes degradation of the operational efficiency of a wastewater facility.
NORMAL DOMESTIC WASTEWATER. Waterborne wastes normally discharging from the sanitary conveniences of buildings (including apartment houses and hotels), office buildings, factories and institutions, free from storm water, surface water and industrial wastes. NORMAL DOMESTIC WASTEWATER shall mean NORMAL for Clayton, New Mexico.
pH. The logarithm (base 10) of the reciprocal of the hydrogen ion concentration of a solution.
PUBLIC SEWER. A sewer in which all owners of abutting properties shall have equal rights, and is controlled by public authority.
SANITARY SEWER. The public sewer portion of a wastewater facility which transports wastewater and to which storm, surface and ground water are not intentionally admitted.
SETTLEABLE SOLIDS. Those solids which settle during a preselected period of time as expressed in milliliters per liter of sample.
STANDARD METHODS. The laboratory procedures set forth in the latest edition, at the time of analysis, of Standard Methods for the Examination of Water and Wastewater, as prepared, approved and published jointly by the American Public Health Association, American Water Works Association and the Water Pollution Control Federation.
STORM SEWER. A sewer which carries storm and surface waters and drainage, but excludes wastewater and polluted industrial wastes.
TRAP. A device for retaining sand, silt, grit mineral material, petroleum solvent, grease or oil by gravity-differential separation from wastewater and of a design and capacity approved by the town.
UNPOLLUTED PROCESS WATER. Any water or waste containing none of the following:
(1) Free or emulsified grease or oil;
(2) Acids or alkalis, phenols or other substances imparting taste and order to receiving water; toxic substances in suspension, colloidal state or solution; and
(3) Noxious or odorous gases.
WASTEWATER. The used water of a community. The used water may be a combination of the liquid and waterborne wastes from residences, commercial buildings, industrial plants and institutions.
WASTEWATER FACILITIES. The structures, equipment and processes required to collect, transport and treat domestic industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKS. An arrangement of devices and structures for treating wastewater, industrial wastes and sludge. Sometimes used as synonymous with waste treatment plant or wastewater treatment plant.
(Ord. 462, passed 2-28-1972; Am. Ord. 466, passed 6-11-1973)