[Adopted 9-14-1998 by Ord. No. 282]
For the purpose of this article, the following words shall have
the meanings indicated unless clearly indicated otherwise in the text:
ACCEPTABLE CROSS-CONNECTION
A cross-connection having all of the following characteristics:
A.
The source of the supply other than the lines of the Vanport
Township Municipal Authority, directly connected, is a source approved
by the Pennsylvania Department of Environmental Protection as an acceptable,
safe and sanitary source of public water supply and which continues
as such at all times when the cross-connection is in existence.
B.
It is installed or continued in existence with the knowledge
and specific consent of the Authority, and, when installed on the
premises of a customer or installed by a customer, such consent shall
be evidenced by proper written agreements or approval.
C.
It is installed or continued in existence and operated at all
times in strict compliance with all applicable laws, ordinances, rules
and regulations.
ACT or THE ACT
The Federal Water Pollution Control Act, also known as the
"Clean Water Act," as amended, 33 U.S.C. § 1251 et seq.
AIR GAP
The unobstructed vertical distance through the free atmosphere
between the lowest opening from any pipe or faucet supplying water
to a tank, plumbing fixture or to other devices and the flood level
rim of said vessel. An approved air gap shall be at least double the
diameter of the supply pipe, measured vertically, above the top of
the rim of the vessel and, in no case, less than one inch. When an
air gap is used at the service connection to prevent the contamination
or pollution of the public potable water system, it is required that
an emergency bypass be installed around the air gap system and an
approved reduced pressure principle device shall be installed in the
bypass system.
APPROVED
A.
Accepted by the Vanport Township Municipal Authority as meeting
an applicable specification stated or cited in its rules and regulations
or as suitable for the proposed use. The term "approved" used in reference
to a backflow prevention device shall mean a backflow prevention device
that meets the requirements of the American Water Works Association's
standard C506-69 and the Foundation for Cross-Connection Control and
Hydraulic Research of the University of Southern California and is
acceptable to the Vanport Township Municipal Authority. Competent
testing laboratories other than the Foundation for Cross-Connection
Control may be qualified by the Authority to approve backflow preventers.
B.
That a backflow prevention device or method has been accepted
by the Vanport Township Municipal Authority as suitable for the proposed
use.
ATMOSPHERIC VACUUM BREAKER (also known as the NON-EXPRESSURE-TYPE
VACUUM BREAKER)
A device containing a shutoff valve followed by a valve body
containing a float-check, a check seat and an air inlet port. When
the shutoff valve is open, the flow of water causes the float to close
the air inlet port. When the shutoff valve is closed, the float falls
and forms a check valve against back siphonage and at the same time
opens the air inlet port.
AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER
A.
A principal executive officer of at least the level of vice
president if the industrial user is a corporation.
B.
A general partner or proprietor if the industrial user is a partnership or proprietorship,
respectively.
C.
A duly authorized representative of the individual designated
above if such representative is responsible for the overall operation
of the facilities from which the indirect discharge originates.
AUXILIARY WATER SYSTEM
Any water source or system on the premises of or available
to the customer except connections to other approved community water
supply systems.
BACKFLOW
The flow of water or other liquids, mixtures or substances
into the potable water distribution system of Vanport Township Municipal
Authority from any source or sources other than its intended source.
Back siphonage and back pressure are two types of backflow specifically
contemplated by these rules and regulations.
BACKFLOW PREVENTION DEVICE
Types, uses, advantages and limitations. There are three
types of devices: reduced-pressure principle device (RPPD); double-check
valve assembly (DCVA); and air gap (AG) which are designed to prevent
the occurrence of backflow.
BACKSIPHONAGE
The backflow of water or mixture of water and other liquids,
gases or other substances from a plumbing fixture or other customer
source into a public water supply system main due to a temporary negative
or subatmospheric pressure within the public water supply system.
COMMUNITY WATER SYSTEM OR DISTRIBUTION SYSTEM
The water distribution system that furnishes water for general
use, owned and operated by the Vanport Township Municipal Authority
of Beaver County, Pennsylvania, and is recognized by regulatory agencies
as a community potable water supply system.
CONSUMER
The owner or person in control of any premises supplied by
or in any manner connected to a public water supply system.
CONSUMER'S WATER SYSTEM
Any water system, located on the consumer's premises,
supplied by or in any manner connected to a public water supply system.
A household plumbing system is considered to be a consumer's
water system.
CONTAINMENT
Cross-connection control which isolates the customer's
entire facility from the public water supply system so as to provide
the protection necessary to prevent contamination of the public water
supply in the event of backflow from the customer's facility.
CONTAMINATION
The degradation of the quality of the drinking water by wastewaters,
processed fluids or any water of a quality less than accepted drinking
water quality to a degree which would create an actual hazard to the
public health through poisoning or through the spread of disease.
CROSS-CONNECTION
A physical arrangement whereby a public water supply system
is connected with another water system, public or private, in such
a manner that a flow of water into such public water supply system
from such other water system is possible. Specifically, it is the
intent of these regulations to regulate any system containing water
or substances, the quality and quantity of which cannot be approved
by county, state or federal regulatory agencies.
DEGREE OF HAZARD
An evaluation of the potential risk to health and the adverse
effect upon the public water supply system.
DOUBLE-CHECK VALVE ASSEMBLY
An assembly composed of two single, independently acting
check valves, including tightly closing shutoff valves located at
each end of the assembly and suitable connections for testing the
water tightness of each check valve.
HEALTH HAZARD
Any condition, device or practice in a water system or its
operation that creates or may create a danger to the health and well
being of its users. The word "severe" as used to qualify "health hazard"
means a hazard to the health of the user that could reasonably be
expected to result in the significant morbidity or death.
INTERCONNECTION
A plumbing arrangement, other than a cross-connection, by
which contamination might be admitted to or drawn into the distribution
system of the Authority or into lines connected therewith used for
the conveyance of potable water. For the purposes of these rules and
regulations, when the term "cross-connection" is used for regulatory
purposes, it shall be meant to include interconnection in all instances.
MAIN EXTENSIONS
Extensions of distribution pipelines beyond existing facilities
and exclusive of service connections.
MAINS
Distribution pipelines which are located in streets, highways,
etc., public ways or private rights-of-way and which are used to serve
the general public.
METER INSTALLATION
An installation, including one or more meters placed at one
or more locations for the purpose of serving one or more premises
in a building or a related group of buildings, in a facility or related
group of facilities, in an area or a related group of areas, and in
such other properties. More than one meter may be provided to allow
flexibility of operation, or furnish adequate capacity, or to permit
more accurate measurement of water, or due to the physical layout
of the property.
OWNER
The person, whether a natural person, partnership or corporation,
in whom is vested ownership, dominion or title, of any premises which
is or is about to be supplied with water by the Vanport Township Municipal
Authority. Whenever used herein, the singular will include the plural
and the plural the singular.
PERSON
Any individual, partnership, association, company, corporation,
municipality, municipal authority, political subdivision or any agency
of the federal or state governments. The term includes the officers,
employees and agents of any partnership, association, company, corporation,
municipality, municipal authority, political subdivision or an agency
of federal or state government.
POLLUTION
The presence of any foreign substance (organic, inorganic
or biological) in water which tends to degrade its qualities so as
to constitute a hazard or impair the usefulness or quality of the
water to a degree which does not create an actual public health hazard
but which does adversely or unreasonably affect such water for domestic
use.
POTABLE WATER
Water which is safe for human consumption according to recognized
state and federal standards.
PROCESS FLUIDS
Any fluid or solution which may be chemically, biologically
or otherwise contaminated or polluted in a form or concentration such
as would constitute a health, pollutional or system hazard if introduced
into the public or a consumer's water system. This includes,
but is not limited to:
A.
Polluted or contaminated waters.
C.
Used waters originating from the public water system which may
have deteriorated in sanitary quality.
E.
Contaminated natural waters taken from wells, lakes, streams
or irrigation systems.
F.
Chemicals in solution or suspension.
G.
Oils, gases, acids, alkalis and other liquid and gaseous fluids
used in industrial or other processes or for fire-fighting purposes.
H.
Heating system waters from boilers or heat pumps.
PUBLIC WATER SUPPLY SYSTEM
Any part of a water supply utility operated by a municipal
corporation, company or individual authorized by written permit issued
by the Department of Environmental Protection in accordance with the
laws of the Commonwealth of Pennsylvania to supply water and extend
distribution facilities to the public.
REDUCED-PRESSURE PRINCIPLE DEVICE
A device that shall incorporate two or more check valves
and an automatically operating differential relief valve located between
the two check valves and two tightly closing shutoff valves and shall
be equipped with necessary appurtenances for testing. The device shall
operate to maintain the pressure in the zone between the two check
valves, less than the pressure on the Vanport Township Municipal Authority
potable water supply side of the device. At cessation of the normal
flow, the pressure between the check valves shall be less than the
supply pressure. In case of leakage of either check valve, the differential
relief shall operate to maintain this reduced pressure by discharging
to the atmosphere. When the inlet pressure is two pounds per square
inch or less, the relief valve shall open and vent to the atmosphere,
thereby providing an air gap in the device. To be approved by the
Authority or its designated agents, the device must be readily accessible
for maintenance and testing and installed in a location where no part
of the device will be subject to outside flooding. The device shall
be used on the service connections which may be subject to backflow
and where there is a possibility of contamination that constitutes
an actual or potential health hazard.
SERVICE CONNECTION
The terminal end of a service line from the public water
supply system. If a meter is installed at the end of the service,
then the "service connection" means the downstream end of the meter.
SYSTEM HAZARD
A condition posing an actual or potential threat of damage
to the physical properties of the public water system or the consumer's
potable water system.
The type of protection required under §
178-6A,
B and
C of this article shall depend on the degree of hazard which exists as follows:
A. An approved air gap separation shall be installed where the public
water supply system may be contaminated with substances that are dangerous
to the public health and could cause a severe health hazard.
B. An approved air gap separation or an approved reduced-pressure zone
backflow prevention device shall be installed where the public water-supply
system may be contaminated with a substance that could cause a system
or health hazard.
C. An approved air gap separation or an approved reduced-pressure zone
backflow prevention device or an approved double-check valve assembly
shall be installed where the public water supply system may be polluted
with substances that would be objectionable but not dangerous to health.