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Town of Milton, DE
Sussex County
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Unless the context specifically indicates otherwise, the meaning of terms in this chapter shall be as follows:
BOD (BIOCHEMICAL OXYGEN DEMAND)
The laboratory determination of the quantity of oxygen by weight, expressed in milligrams per liter, utilized in the biochemical oxidation of organic matter under standard laboratory conditions of incubation for five days at a temperature of 20° C.
BUILDING DRAINING SYSTEM
That part of the plumbing system which receives, conveys and removes liquid and water-carried wastes to a building drain.
BUILDING DRAIN or HOUSE DRAIN
That part of the lowest horizontal piping of a house drainage system which receives the discharge from soil, waste, and other drainage to the building sewer.
BUILDING SEWER
That part of a building drainage system which extends from the end of the building drain and conveys its discharges to a community sewer or other approved point of disposal.
CHLORINE DEMAND
Expressed in milligrams per liter, the difference between the amount of chlorine added to wastewater and the amount of residual chlorine remaining at the end of a specified contact period.
COD (CHEMICAL OXYGEN DEMAND)
The measure of the oxygen consuming capacity of inorganic and organic matter present in wastewater, expressed in milligrams per liter, as the amount of oxygen consumed from a chemical oxidant in a specific text, but not differentiating between stable and unstable organic matter and thus not necessarily correlating with biochemical oxygen demand.
COMBINED SEWER
A sewer receiving combined waste.
COMBINED WASTE
A wastewater containing surface water or stormwater.
COMMUNITY SEWER
A sewer currently or previously owned and operated by the Mayor and Council of Milton or Tidewater Environmental Services, Inc., tributary to a wastewater treatment facility currently or previously operated by the Mayor and Council of Milton or Tidewater Environmental Services, Inc.
[Amended 9-9-2019 by Ord. No. 2019-007]
COMPATIBLE CONSTITUENT
Biochemical oxygen demand, suspended solids, pH, plus additional constituents identified in the National Pollutant Discharge Elimination System (NPDES) permit if the wastewater treatment facility was designed to treat such constituents and does remove such constituents to a substantial degree.
CONSTITUENT
The conditions which exist in the wastes resulting either individually or in combination with particles in the wastes or sewer system.
CONTRIBUTORY AREA
An area from which the sewage flow is transported to the treatment works by a common intercepting or trunk sewer.
CONTROL MANHOLE
A manhole giving access to a building sewer at some point before the building sewer discharge mixes with other discharges in the public sewer.
CONTROL POINT
A point of access to a source of discharge before the discharge mixes with other discharges in the public sewer.
COOLING WATER
The water discharges from any system of condensation, air conditioning, cooling, refrigeration, or other sources, and shall contain no constituents which would produce BOD or suspended solids, each in excess of 10 milligrams per liter, or contain toxic substances as limited in this chapter.
DOMESTIC WASTES
A combination of water-carried wastes from residences, business buildings, institutions and commercial establishments contributed solely by reason of human occupancy.
EFFLUENT
Wastewater after some degree of treatment flowing out of any treatment device or facility.
GARBAGE
Animal and vegetable wastes from the preparation, cooking, and disposing of food; and from the handling, processing, storage and sale of food products and produce.
HOLDING TANK WASTE
Any waste from holding tanks, such as vessels, chemical toilets, campers, trailers, septic tanks and vacuum pump tank trucks.
INCOMPATIBLE CONSTITUENT
Any constituent which is not compatible as defined. The pretreatment standard for incompatible constituents introduced into publicly owned treatment works by a user shall be that established by promulgated effluent limitation guidelines defining best practicable control technology, provided that if the publicly owned treatment works which receives the constituent is committed in its NPDES permit to remove a specified percentage of any incompatible constituent, then credit for such removal may be allowed.
INDUSTRIAL WASTE or NONDOMESTIC WASTE
Any liquid, gaseous or solid substances resulting from any process of industry, manufacturing, trade or business from the development or recovery of any natural resource, or any mixture of the waste with water or domestic wastewater, as distinct from domestic wastewater.
INDUSTRY
Any establishment which uses water in a product or generates a wastewater during any period of production, manufacturing, retail sales, or providing service to the public or its individual customers.
INFLUENT
Wastewater, raw or partly treated, flowing into any sewage treatment device or facilities.
INTERCEPTING SEWER
A sewer which receives dry weather flow from sanitary sewers and/or additional predetermined quantities of combined waste and conducts such flow to a plant for treatment or disposal.
MASS EMISSION RATE
The weight of material discharged to the sewer system during a given time interval, expressed as pounds per day of a particular constituent or combination of constituents.
MAXIMUM PERMISSIBLE COMPOSITE CONCENTRATION
The highest allowable constituent concentration as determined by laboratory testing from representative samples collected during a six-hour period of normal operation.
MILLIGRAMS PER LITER (MG/L)
The same as parts per million and is the weight-to-volume ratio of a constituent.
NONDOMESTIC WASTE
The same as "industrial waste," as defined.
NUISANCE
Anything which is injurious to health or is indecent or offensive to the senses or an obstruction to the free use of property so as to interfere with the comfort or enjoyment of life or property or which affects at the same time an entire community or neighborhood or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal.
OVERLOAD
The imposition of organic, solids, or hydraulic loading on a treatment facility in excess of its engineered design capacity.
PERSON
Any individual, firm, company, association, society, corporation, institution, group or any other legal entity.
pH
The reciprocal of the base 10 logarithm of the hydrogen ion concentration expressed in grams per liter.
PREMISES
Any parcel of real estate, including any improvements, which is a single user for purposes of receiving, using and paying for sewer service.
PRIVATE SEWER
A sewer either on private property or in a public street which is not constructed by, nor is controlled by, the Mayor and Council of Milton or Tidewater Environmental Services, Inc.
[Amended 9-9-2019 by Ord. No. 2019-007]
SANITARY SEWER
A sewer the specific purpose of which is to carry domestic or industrial wastes or a combination of both, and into which stormwater, surface water, groundwater and other unpolluted waters are not intentionally passed.
SANITARY WASTES
Wash water, culinary wastes and liquid wastes containing only human excreta and similar matter, flowing in or from a building drainage system or sewer origination in a dwelling, business building, factory or institution.
SEWAGE
The same as "wastewater," as defined.
SEWAGE TREATMENT WORKS (SEWAGE TREATMENT PLANT, POLLUTION CONTROL PLANT)
Any arrangement of devices, facilities and structures used for receiving, processing and treating wastewater, industrial wastes, and sludges from the sanitary or combined sewers.
SEWER
A pipe or conduit, generally closed, for carrying wastewater.
SEWER SYSTEM
All sewers, laterals or other connections or plants which connect with or pertain to a connection with the sewers, plants, public works, and/or projects of the Mayor and Council or Tidewater Environmental Services, Inc., including all facilities currently or previously owned by the Mayor and Council.
[Amended 9-9-2019 by Ord. No. 2019-007]
SHALL
Is mandatory; "may" is permissive.
SHREDDED GARBAGE
Garbage shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle having a dimension greater than 1/2 inch in any direction.
STANDARD METHODS
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 Works Association, and the Water Pollution Control Federation.
STORM SEWER
A community sewer which carries stormwater and surface water and drainage and into which domestic wastewater or industrial wastes are not intentionally passed.
STORMWATER
The excess water running from the surface of a drainage area or building during the immediately following period of precipitation.
SUSPENDED SOLIDS (FILTERABLE RESIDUE)
The dry weight of solids, expressed as milligrams per liter, that either float on the surface of, are in suspension, or are settleable in water, wastewater or other liquids and which are largely removable by a laboratory filtration device.
TO DISCHARGE
To include 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.
TOXIC SUBSTANCE
Any substance whether gaseous, liquid, or solid which when discharged to the sewer system in sufficient quantities may tend to interfere with any sewage treatment process, constitute a hazard to recreation in the receiving waters of the effluent from the sewage treatment plant, pose a hazard to workers in the sewer system or constitute a hazard to fish or animal life.
TRAP
A device designed to skim, settle, or otherwise remove grease, oil, sand, flammable wastes or other harmful substances.
UNPOLLUTED WATER
Water to which no constituents have been added, either intentionally or accidentally, which would render such water unacceptable to the agency having jurisdiction thereof for disposal to storm or natural drainages or directly to surface water.
USER
Any person that discharges, cause or permits the discharge of wastewater into a public sewer.
USER CHARGE
A charge levied on the users of wastewater facilities and treatment works for the costs of operation maintenance and debt repayment of such facilities and works.
USER CLASSIFICATION
A classification of each user based upon the latest edition of the Standard Industrial Classification (SIC) Manual prepared by the Federal Executive Office of Management and Budget.
WASTE
Rejected, unutilized and superfluous substances in liquid, gaseous or solid form resulting from domestic and nondomestic activities.
WASTEWATER
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, whether treated or untreated, discharged into or permitted to enter a public sewer.
WASTEWATER CONSTITUENTS AND CHARACTERISTICS
The individual chemical, physical, bacteriological and radiological parameters, including volume, flow rate, and such other parameters that serve to define, classify or measure the contents, quality and strength of wastewater.
WASTEWATER FACILITIES
All facilities for collection, transmission pumping, treating and disposing of wastewater.
WASTEWATER TREATMENT PLANT
"Sewage treatment works," as defined.
WATERCOURSE
A natural or man-made channel in which a flow of water occurs, either continuously or intermittently.
WATER METERS
Those devices for the purpose of measuring the quantity of water consumed, not necessarily correlating to wastewater discharge quantity.