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:
The mayor or his duly appointed representative.
The arithmetic average (weighted by the flow value) of all the daily determinations of concentration made during a calendar month. Daily determinations of concentration made using a composite sample shall be the concentration of the composite sample. When grab samples are used, the daily determination of concentration shall be the arithmetic average (weighted by flow value) of all the samples collected during that calendar day.
The quantity of oxygen by weight, expressed in mg/l, utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five days at a temperature of 20 degrees Celsius.
The extension from the building drain to the public sewer or other place of disposal (also called house lateral and house connection).
Measure of the oxygen consuming capacity of inorganic and organic matter present in the water or wastewater expressed in mg/l as the amount of oxygen consumed form a chemical oxidant in a specific test, but not differentiating between stable and unstable organic matter and thus not necessarily correlating with biochemical oxygen demand.
A manhole giving access to a building sewer at some point before the building sewer discharge mixed with other discharges in the public sewer.
A point of access to a course of discharge before the discharge mixes with other discharges in the public sewer.
The concentration of a sample consisting of a minimum of three grab samples of an effluent collected at regular intervals over a normal operating day and combined proportional to flow, or a sample continuously collected proportional to flow over a normal operating day.
Animal and vegetable wastes and residue from preparation, cooking, and dispensing of food; and from the handling, processing, storage and sale of food products and produce.
The concentration of an individual sample of effluent collected in less than 15 minutes.
Includes each of the following metals in its elemental state and any of its compounds expressed as that metal: arsenic, barium, cadmium, chromium, copper, lead, manganese, mercury, nickel, selenium, silver and zinc.
Waste resulting from any process of industry, manufacturing, trade, or business from the development of any natural resource, or any mixture of the waste with water or normal wastewater, or distinct from normal wastewater.
The charge made on those persons who discharge industrial wastes into the city’s sewerage system.
Includes all surface waters in the state other than “tidal waters” defined below.
The same as parts per million and is a weight-to-volume ratio; the milligram-per-liter value multiplied by the factor 8.34 shall be equivalent to pounds-per-million gallons of water.
Any outlet into a watercourse, ditch, lake, or other body of surface water or groundwater.
Wastewater excluding industrial wastewater discharged by a person into sanitary sewers and in which the average concentration of total suspended solids is not more than 200 mg/l and BOD is not more than 200 mg/l.
The imposition of organic or hydraulic loading on a treatment facility in excess of its engineered design capacity.
Includes individual, corporation, organization, government or governmental subdivision or agency, business trust, estate, trust, partnership, association, and any other legal entity.
The logarithm (base 10) of the reciprocal of the hydrogen ion concentration.
Pipe or conduit carrying wastewater or unpolluted drainage in which owners of abutting properties shall have the use, subject to control by the city.
A public sewer that conveys domestic wastewater or industrial wastes or a combination of both, and into which stormwater, surface water, groundwater, and other unpolluted wastes are not intentionally passed.
Any discharge of water, wastewater, 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.
The examination and analytical 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, the American Water Works Association, and the Water Pollution Control Federation.
A public sewer which carries stormwaters and surface waters and drainage and into which domestic wastewater or industrial wastes are not intentionally passed.
Rainfall or any other forms of precipitation.
The water and wastewater superintendent of the city or his duly authorized deputy, agent, or representative.
Solids measured in mg/l that either float on the surface of, or are in suspension in, water, wastewater, or other liquids, and which are largely removable by a laboratory filtration device.
Those waters of the Gulf of Mexico within the jurisdiction of the state, bays and estuaries thereto, and those portions of the river systems which are subject to the ebb and flow of the tides, and to the intrusion of marine waters.
Includes to deposit, conduct, drain, emit, throw, run, allow to seep, or otherwise release or dispose of, or to allow, permit, or suffer any of these acts or omissions.
A device designed to skim, settle, or otherwise remove grease, oil, sand, flammable wastes or other harmful substances.
Water containing:
No free or emulsified grease or oil;
No acids or alkalis;
No phenols or other substances producing taste or odor in receiving water;
No toxic or poisonous substances in suspension, colloidal state, or solution;
No noxious or otherwise obnoxious or odorous gases;
Not more than an insignificant amount in mg/l each of suspended solids and BOD, as determined by the Texas Department of Water Resources; and
Color not exceeding 50 units as measured by the platinum-cobalt method of determination as specified in Standard Methods.
Rejected, unutilized or superfluous substances in liquid, gaseous, or solid form resulting from domestic, agricultural, or industrial activities.
A combination of the water-carried waste from residences, business buildings, institutions, and industrial establishments, together with any groundwater, surface water, and stormwater that may be present.
Includes all facilities for collection, pumping, treating, and disposing of wastewater and industrial wastes.
The charge on all users of the public sewer system whose wastes do not exceed in strength the concentration values established as representative of normal wastewater.
Any city-owned facilities, devices, and structures used for receiving, processing, and treating wastewater, industrial waste, and sludges from the sanitary sewers.
A natural or manmade channel in which a flow of water occurs, either continuously or intermittently.
(Ordinance 75, sec. 1, adopted 3/11/80)