Unless the content specifically indicates otherwise, the meaning
of terms used in these regulations shall be as follows:
BIOLOGICAL OXYGEN DEMAND (abbreviated BOD)
The quantity of oxygen expressed in milligrams per liter
(mg/l) utilized in the biochemical oxidation of organic matter, during
incubation at 20°C for a period of five days. The tests shall
be made in accordance with standard laboratory procedures.
CHEMIST
Our individual qualified to conduct necessary chemical analysis.
CHLORINE DEMAND
The amount of chlorine which must be added to waters and
wastes to produce a residual chlorine content in such waters and wastes
after a fifteen-minute contact time.
COMPOSITE SAMPLE
A combination of individual samples of water or wastewater
taken at selective intervals, generally hourly, for a specified time
period, generally 24 hours, to minimize the effect of the individual
sample variability.
COUNTY
The government of Calvert County, Maryland.
ENGINEER
A professional engineer registered to practice in the State
of Maryland.
GARBAGE
Solid wastes from the preparation, washing and dispensing
of food, and from the handling, storage and sale of produce.
MANHOLE
A structure designed to provide access to the sewer for purposes
of examination, cleaning, sampling or flow measurement.
MG/LITER
Milligrams per liter of wastewater, also referred to as parts
per million by weight (ppm) or mg/l.
PERSON
Any individual, firm, company, association, society, corporation
or group.
pH
The logarithm of the reciprocal of the weight of hydrogen
ions in grams per liter of solution as measured by standard laboratory
procedures.
PRETREATMENT
The reduction of the amount of pollutants, the elimination
of pollutants or the alteration of the nature of pollutant properties
in wastewater to a less harmful state prior to or in lieu of discharging
or otherwise introducing such pollutants into a POTW.
PROPERLY SHREDDED GARBAGE
The wastes from the preparation, cooking dispensing of food
that has been shredded to such a degree that all particles will be
carried freely under the flow conditions normally prevailing in public
sewers, with no particle greater than 1/2 inch (1.27 centimeters)
in any dimension.
PUBLIC SEWER
The sewer owned, controlled or used by the county.
SANITARY SEWER
A sewer which carries wastewater and to which storm, surface
and ground waters are not intentionally admitted.
SLUG
Any discharge of wastewater having a concentration of any
given constituent sufficiently above the average and for a period
to be considered by the Bureau of Utilities Chief, as harmful to the
collection system or the performance of the POTW.
[Amended 5-28-2002 by Ord. No. 21-02]
STANDARD LABORATORY PROCEDURE
The procedures outlined in standard methods for the examination
of water and wastewater, latest addition as published by the American
Public Health Association, the American Water Works Association and
the Water Pollution Control Federation.
SUSPENDED SOLIDS
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 under standard laboratory procedure.
TOXIC SUBSTANCES
Any substance gaseous, liquid or solid which when discharged
to a sewer may tend to interfere with any waste treatment process,
or to constitute a hazard to human beings or animals, or to inhibit
aquatic life or to create a hazard to recreation in the receiving
water of the effluent should this toxic substance pass through the
treatment process from the wastewater treatment into which wastes
may be discharged.
WASTEWATER
A combination of the water-carried wastes from residences,
business buildings, institutions, commercial and industrial establishments,
together with such ground, surface and storm waters as may be present.
WASTEWATER WORKS
All facilities for collecting, pumping, treating and disposing
of wastewater.