Plumbing CROSS CONNECTIONS - Health & Safety Risks from Plumbing Cross Connections. Definition of plumbing cross connection: a plumbing cross-connection is defined as any physical connection or arrangement between potable water and any source of contamination.Examples of cross connections are shown at left.
EXAMPLES OF ACTUAL CROSS-CONNECTION CONTAMINATION EVENTS . 1. DATE OF BACKFLOW INCIDENT: June, 1979 . LOCATION OF INCIDENT: Meridian, Idaho . SOURCE(S) OF INFORMATION: - American Water Works Association, Recommended Practice for Backflow Prevention and Cross-Connection Control, AWWA Manual M14, Section Edition, 1990 - Pacific Northwest Section ...
Common examples of cross-connections include a garden hose submerged in a pesticide mixture, a piped connection providing potable feed water to an industrial process, such as a cooling tower, or a submerged
water would flow into the potable water supply. What is a cross-connection? A cross-connection is a direct arrangement of a piping line which allows the potable water supply to be connected to a line which contains a contaminant. An example is the common garden hose attached to a sill cock with the end of the hose lying in a cesspool.
A cross connection is a direct arrangement of a piping line which allows the potable water supply to be connected to a line which contains a contaminant. An example is the common garden hose attached to a sill cock with the end of the hose lying in a cesspool.
The difference between these two types of cross-connections is very simple. A direct cross-connection is subject to backpressure (as shown above); an indirect cross-connection is not subject to backpressure. An example of a direct cross-connection would be the make-up water line feeding a recirculating system.
Explaining Cross-Connections, Backflow Prevention, & Safe Drinking Water. Cross-Connection Control Program Regulation. Purpose. The following is presented to provide a general explanation on the subject of backflow prevention.
public water supplier to protect the public water system from cross-connections and prevent backflow situations. The public water supplier must conduct cross-connection control inspections of their water customers’ property to evaluate cross-connection hazards. Local ordinances or water department regulations also exist that must be followed in
cross connections What is a Cross Connection? A cross connection is a point in a plumbing system where the potable water supply is con-nected to a non-potable source. Briefly, a cross connection exists whenever the drinking water system is or could be connected to any non-potable source (plumbing fixture, equipment used in any plumbing system).
Guidance Document: Cross-Connection Control for Small Water Systems March 2004 Revised For more information or additional copies of this publication contact: Training and Outreach Section Office of Drinking Water Department of Health PO Box 47828 Olympia, WA 98504-7828 (360) 236-3164 Mary Selecky Secretary of Health Janice Adair