Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:
means a parcel where the entire length of any one property line or parcel boundary line is adjacent to an easement and/or public right-of-way in which a sanitary sewer is located.
means a microbial mass, produced by the reproduction of individual wastewater microorganisms under favorable homeostatic conditions, resulting in a solid or semisolid by-product of a wastewater treatment facility.
(biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter in five days at 20 degrees Celsius, expressed in milligrams per liter. Quantitative analysis shall be made in accordance with procedures set forth in "Standard Methods."
means brush, limbs and woody material obtained from pruning of residential properties, which must be chipped prior to composting and is transported in trash containers.
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.
means brush, limbs and woody material obtained from pruning, which must be chipped prior to composting in quantities normally greater than two cubic yards.
means grass, leaves, vegetable matter, and other soft green waste in quantities normally greater than 10 cubic yards.
means the city of Langley.
means the city engineer of the city or a duly authorized representative.
means the federal Water Pollution Control Act, PL 92-500, and any amendments thereto; as well as any guidelines, limitations, and standards promulgated by the Environmental Protection Agency pursuant to the Act.
(chemical oxygen demand) means the measure of the oxygen equivalent of the organic matter content of a sample that is susceptible to oxidation by a strong chemical oxidant. Quantitative analysis shall be made in accordance with procedures set forth in "Standard Methods."
means a mixture of discrete samples, collected either manually or by automatic sampler, taken at the same sampling point with the sample volume being proportional to flow as measured over a 24-hour period.
means the biosolid composting operation of the city of Langley located at the city's wastewater treatment facility.
means any suitable green waste (yard or bulk), brush/brown waste (yard or bulk), biosolids, dewatered cake material, or general organic material.
means all of the items required to connect the building sewer to the existing municipal wastewater collection system.
means any cooling process whereby unpolluted water is brought into intimate or direct contact with any industrial, manufacturing trade, or business product for the purpose of heat dissipation or removal.
means the property owner and/or occupant at the location where services are delivered.
means the public works director or his designee.
means the total volume of discharge, in gallons, occurring within a 24-hour period, which is representative of the majority of days in which a waste is discharged.
means the total volume of discharge, in gallons, occurring within a 24-hour period, which is representative of the maximum volume of waste which is, or potentially could be, discharged under other than average circumstances.
means untreated sanitary wastes from residential sources that pass through a sewer system to a publicly owned treatment works (POTW) for treatment.
means a residential establishment consisting of a detached building.
means the water, together with any waste that may be present, flowing out of a building, process or treatment facility.
means the city of Langley engineering office located at 112 Second Street, City Hall, Langley, Washington.
means the federal Environmental Protection Agency.
means a monitoring device used for the detection of combustible and/or toxic gases.
means any substance or material with similar physical characteristics, such as biological lipids and mineral hydrocarbons, which can be determined quantitatively on the basis of their common solubility in trichlorotrifluoroethane. Quantitative analysis shall be made in accordance with procedures set forth in "Standard Methods."
means the residue from the preparation, cooking and dispensing of food, and from the handling, storage and sale of food products and produce.
means a sample collected at a particular time and place and representative of the composition of the source at that time and place only.
means the slope or fall of a line of pipe in reference to a horizontal plane, expressed as a ratio of horizontal distance to vertical distance.
means a basin, sump or other device so designated to intercept and collect either grease, sand or oil thus preventing their entry into the wastewater treatment system.
means the point of connection of the connecting sewers to the building sewer at the building.
means side sewer.
means loadings imposed on the wastewater treatment system of or relating to a volume of water.
means solids of a primarily nonbiological nature including materials such as sand, gravel, grit, grains, garbage or other similar materials.
means the inhibition or disruption of the wastewater treatment processes or operations, which shall cause or tend to cause a violation of any requirement of the city's NPDES permit. The term includes prevention of biosolids use or disposal in accordance with Section 405 of the Act (33 U.S.C. 1345), or any criteria, guidelines, or regulations developed pursuant to the Solid Waste Disposal Act (SWDA), the Clean Air Act, the Toxic Substances Control Act, or more stringent state criteria (including those contained in any state biosolids management plan prepared pursuant to the Title IV of SWDA) applicable to the method of disposal or use employed by the wastewater treatment facility.
(lower explosive limit) means the lowest percentage at which a flash will occur or a flame will travel when methane vapor is mixed with air and a source of ignition is present. The LEL of methane in air is 5.3 percent.
means Langley Municipal Code.
means the weight of material discharged to the wastewater treatment system during a given time interval. Unless otherwise specified, the mass discharge quantity means pounds per day of a particular constituent or combination of constituents as calculated on a dry weight basis.
shall indicate a discretionary condition.
(milligrams per liter) shall be a mass-to-volume ratio; the milligrams per liter value multiplied by the conversion factor 8.34 shall be equivalent to pounds per million gallons of water.
means any type of wastewater which has a greater concentration of pollutants or a greater number of pollutants than would be found in wastewater from a typical residence.
means the average amount of solids removed per day, both inert and biological, during a period of 60 days prior to any infraction or alleged infraction of this chapter.
(National Pollutant Discharge Elimination System permit) means the permit setting forth conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to Section 402 of PL 92-500.
means any individual, partnership, co-partnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity or any other legal entity, or their legal representatives, agents or assigns.
means the logarithm of the reciprocal of the hydrogen-ion concentration. The concentration is the weight of hydrogen ions, in grams per liter of solution. Neutral water, for example, has a pH value of seven and a hydrogen-ion concentration of 10-7.
means a publicly owned treatment works. An arrangement of equipment, structures and appurtenances such as, but not limited to, comminutors, basins, drives, blowers, digesters and any other systems required to treat wastewater, industrial waste and biosolids.
means a parcel of real estate including any improvements thereon, which is determined by the director to be a user.
means the process of neutralizing or reducing the amount of pollutants, eliminating pollutants or altering the nature of pollutant properties to a less harmful state by physical, chemical or biological processes prior to or in lieu of discharging or otherwise introducing such pollutants into the wastewater treatment system.
means regulations applicable to specific categories of industrial users, containing pollutant discharge limits promulgated by EPA in accordance with Section 3.07(b) and (c) of the Act as established under 40 CFR Chapter 1, Subchapter N.
means any liquid waste discharge resulting from industrial, trade, manufacturing, business, commercial or contact cooling process or from the development, recovery or processing of natural resources.
means a sewer in which all owners of abutting properties have equal rights, and which is controlled by public authority.
means the city of Langley public works office located at 112 Second Street, City Hall, Langley, Washington.
means a person, in the employ of the city with sufficient knowledge of permit requirements, facilities, and discharge characteristics, so as to be capable of determining and confirming whether or not a user is in compliance and if not, what measures must be taken to achieve compliance.
means elements or isotopes, whether free or combined, which are a source of particles and/or rays resulting from the disintegration of the atomic nuclei caused by fission, fusion, particle acceleration, or other related artificial sources or processes.
means a sewer, which carries wastewater, and to which storm, surface, ground and other unpolluted water are not intentionally admitted.
means the connecting sewer.
means a pipe or conduit for carrying sewage.
is mandatory.
(Standard Industrial Classification) means a classification code (1972) issued by the Executive Office of the President, Office of Management and Budget, for use in the classification of establishments by types of business and the primary economic activity engaged in.
means service connection from the public main to the premises served.
means the examination and analytical procedures set forth in the most recent edition of "Standard Methods for the Examination of Water and Wastewater" published jointly by the American Public Health Association, the American Water Works Association and the Water Environment Federation.
means solids that either float on the surface of, or are in suspension in, water, wastewater or other liquids, and which are removable by laboratory filtering. Quantitative analysis shall be made in accordance with procedures set forth in "Standard Methods."
means any lift station that is installed in conjunction with a nonstandard sewer main extension.
means those substances or combinations of substances, including disease-causing agents, which after discharge and upon exposure, ingestion, inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion through the food chains, have the potential to cause death, disease, behavioral abnormalities, cancer, genetic mutation, physiological malfunctions, including malfunctions in reproduction or physical deformations, in such organisms or their offspring.
means an exceptional incident in which a discharger unintentionally is in a state of noncompliance with discharge limitations set forth and excludes inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation thereof.
means wastewater and any and all other waste substances, liquid, solid, gaseous or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing or processing operation of whatever nature.
means a permit authorized by the Washington State Department of Ecology (pursuant to Chapter 173-216 WAC) regulating commercial and industrial discharges to a publicly owned treatment works.
means any and all of the connecting, lateral, main, trunk sewers, interceptors, and lift stations.
means the individual chemical, physical, bacteriological and radiological parameters, including volume and flow rate and such other parameters that serve to define, classify or measure the contents, quantity, and strength of wastewater.
means an arrangement of equipment, structures and appurtenances such as, but not limited to, comminutors, basins, drives, blowers, digesters and any other systems required to treat wastewater, industrial waste and biosolids.
means any and all of the connecting, lateral, main, trunk sewers, interceptors, lift stations including wastewater treatment plant and facilities.
(Ord. 786, 2000)