Pursuant to title 30, Texas Administrative Code, section 290.44,
it is the responsibility of the city to protect its drinking water
supply by instituting and enforcing a cross-connection program. The
purpose of this article, therefore, is to comply with the above-cited
regulatory requirements and to protect the water supply of the city
from contamination or pollution due to any cross connections.
(Ordinance 788-19 adopted 1/22/19)
Unless a provision explicitly states otherwise, the following
terms and phrases, as used in this article, shall have the meanings
hereinafter designated. If a word or term used in this article is
not contained in the following list, it shall have the definition
provided for such word or term in the latest edition of the Manual
of Cross-Connection Control published by the Foundation for Cross-Connection
Control and Hydraulic Research, University of Southern California.
Auxiliary supply.
Any water source or system other than the public water system
that may be available in a building or on a property.
AVB.
Atmospheric vacuum breaker.
Backflow.
(1)
The flow in the direction opposite to the normal flow; or
(2)
The introduction of any foreign liquids, gases, or substances
into the public water system.
Contamination.
The presence in or entry into a public water supply system
of any substance which may be deleterious to the public health and/or
the quality of the water.
Cross connection.
Any physical arrangement where a potable water supply is
actually or potentially connected with any nonpotable water system,
used water system or auxiliary water supply, sewer, drain conduit,
swimming pool, storage reservoir, plumbing fixture, swamp cooler,
air conditioning unit, fire protection system, or any other assembly
which contains, or may contain, contaminated water, sewage, or other
liquid of unknown or unsafe quality which may be capable of imparting
contamination to the public water system as a result of backflow.
Bypass arrangements, jumper connections, removable sections, swivel
or change over assemblies, or other temporary or permanent assemblies
through which, or because of which, backflow may occur are considered
to be cross connections.
DC.
Double check valve backflow prevention assembly.
DDC.
Double detector check valve assembly.
Degree of hazard.
The low or high hazard classification that shall be attached
to all actual or potential cross connections.
Department.
The water department of the City of Willow Park.
Director.
The city’s director of public works and the directors
authorized representatives.
Drinking water.
Water distributed for human consumption, for use in preparing
food or beverages, or for use in cleaning a utensil or article used
in preparing food or beverages for, or consuming food or beverages
by, human beings.
Health hazard.
An actual or potential threat or contamination of a physical
or toxic nature dangerous to health to the public potable water system
or a consumer’s potable water system.
High hazard.
The classification assigned to a cross connection that could
potentially allow a substance that may cause illness or death to a
person to backflow into the potable water supply.
Human consumption.
Uses by humans in which water can be ingested into or absorbed
by the human body. Examples of these include, but are not limited
to, drinking, cooking, brushing teeth, bathing, washing hands, preparing
foods, and washing dishes, utensils, and other articles used in the
preparation or consumption of food.
Inspector.
A person that is a certified cross connection inspector employed
by or under contract with the city.
Low hazard.
The classification assigned to a cross connection that could
potentially allow a substance that may be objectionable but not hazardous
to a person’s health to backflow into the potable water supply.
Plumbing code.
The city’s current adopted issue of the International
Plumbing Code.
Plumbing hazard.
An internal or plumbing-type cross connection in a consumer’s
potable water system that may be either a pollution or contamination
hazard.
Point of use isolation.
The appropriate backflow prevention within a consumer’s
water system at the point at which a cross connection exists.
Premises.
Any piece of property to which water is provided, including
all improvements, mobile structures, and structures located on it.
Premises isolation.
The appropriate backflow prevention at the service connection
between the public water system and the water user.
Public water system.
Any public or privately owned water system which supplies
water for human consumption. The system includes all services, reservoirs,
facilities, and equipment used in the process of producing, treating,
storing, or conveying water for public consumption.
PVB.
Pressure vacuum breaker.
Residential use.
Single-family dwellings, duplexes, multiplex housing and
apartments where the individual units are each on a separate meter,
or, in cases where two or more units are served by one meter, the
units are full-time dwellings.
Service connection.
The point of delivery at which the water purveyor loses control
of the water.
System hazard.
An actual or potential threat of severe danger to the physical
properties of the public or a consumer’s potable water supply,
or an actual or potential threat of pollution or contamination that
would have a detrimental effect on the quality of the potable water
in the system.
Tester.
A person who is a certified backflow prevention assembly
technician approved and registered with the director.
Used water.
Water supplied by a public water system to a water user’s
system after it has passed through the service connection.
(Ordinance 788-19 adopted 1/22/19)