Definitions
of Terms Commonly Used. The following words and phrases when used
in this chapter shall have the meanings set forth in this section,
whether appearing in capital or lower case form.
"ASTM Specifications"
means the Standard Specifications or Methods of the American
Society for Testing and Materials of the serial designation indicated
by the number and, unless otherwise stated, refer to the latest adopted
revision of said specification or method.
"Biochemical oxygen demand (BOD)"
means the quantity of oxygen utilized in the biochemical
oxidation of organic matter under a standard laboratory procedure
in five days at a temperature of 20 degrees Centigrade, expressed
in milligrams per liter, or parts per million by weight. Laboratory
determinations shall be made in accordance with procedures set forth
in Standard Methods.
"Building drain"
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, beginning five feet outside the inner face of the building
wall.
"Building sewer"
means the extension from the building drain to the property
line or right-of-way line and connection with the public sewer service
connection.
"Chlorine requirement"
means the amount of chlorine, which must be added to the
sewage to produce a specified residual chlorine content, or to meet
the requirements of some other objective, in accordance with procedures
set forth in Standard Methods.
"City sewerage system"
means all or any part of the facilities for collection, pumping,
treating and disposing of sewage as acquired, constructed or used
by the City.
"Engineer"
means the engineer duly appointed or hired by the City or
the owner of private sewers to supervise and direct the design and
construction of local sewerage facilities, acting personally or through
agents or assistants duly authorized by him or her, such agents or
assistants acting within the scope of the particular duties assigned
to them.
"Industrial waste"
means any flow discharged into the sewer facilities by any
non-governmental user of the City sewage system identified in the
Standard Industrial Classification Manual 1972, Office of Management
and Budget, as amended and supplemented, under the following divisions:
1.
Division A: Agriculture, Forestry, and Fishing;
3.
Division D: Manufacturing;
4.
Division E: Transportation, Communications, Electric, Gas, and
Sanitary Services;
5.
Division I: Services.
A user in the divisions listed may be excluded if it is determined
that it will introduce primarily segregated domestic wastes or wastes
from sanitary conveniences.
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"Interceptor"
means a sanitary sewer which receives the flow from a number
of trunk, main or lateral sewer lines and transports it to a treatment
plant or other point of disposal. Generally an interceptor collects
the flow from a number of trunks, mains or laterals which would otherwise
discharge to a natural outlet.
"Lateral"
means a sanitary sewer line which will receive the flow from
service connections and dis-charge into a main.
"Main"
means a sanitary sewer line which will receive the flow from
one or more laterals and which will discharge into a trunk or interceptor.
"Natural outlet"
means an outlet into a pond, lake, stream, river, ditch,
watercourse or other body of surface water.
"Person"
means any natural person, firm, partnership, corporation
or any other legal entity.
"pH"
means the logarithm of the reciprocal of the weight of hydrogen
ions in grams per liter of solution. pH shall be determined by one
of the procedures outlined in Standard Methods. (pH is a measure of
acidity or alkalinity.)
"Pressure sewer"
means a sewer receiving sewage flow directly from a pump
station and discharging under pressure into an interceptor, trunk,
main, lateral, another pumping station, or treatment plant.
"Private sewer"
means a sanitary sewer, storm sewer, or combined sewer, exclusive
of building sewers, which is neither within the jurisdiction of nor
owned or operated by the City or a local government agency.
"Service connection"
means a public sewer line which has been constructed to the
approximate property line or right-of-way line from a public sewer
for the sole purpose of providing a connection for the building sewer.
"Slug"
means any discharge of water, sewage 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.
"Standard Methods"
means the examination and analytical procedures set forth
in the most recent edition of Standard Methods for the Examination
of Water and Wastewater, published by the American Public Health Association,
the American Water Works Association, and the Water Pollution Control
Federation.
"Storm sewer"
means a conduit designed or used exclusively to transport
stormwater.
"Suspended solids"
means solids that either float on the surface, or are in
suspension in water, sewage or other liquids; and which are removable
by laboratory filtering in accordance with procedures set forth in
Standard Methods.
"Trunk"
means a major sanitary sewer line into which more than two
laterals or mains discharge and which transports the flow collected
from laterals and mains to an interceptor, pumping station or treatment
plant.
"Unpolluted water or liquids"
means any water or liquid containing none of the following:
free or emulsified grease or oil; acids or alkalies; substances that
may impart taste-and-odor or color characteristics; toxic or poisonous
substances in suspension, colloidal state or solution; odorous or
otherwise obnoxious gases. It shall meet the current state standards
for water used for recreation. Analytical determinations shall be
made in accordance with procedures set forth in Standard Methods.
"Watercourse"
means a channel in which a flow of water occurs, either continuously
or intermittently.