HomeMy WebLinkAbout15, Workshop - Cross-Connection Control and Backflow
WORKSHOP ITEM #15Prevention Program RequirementsConnection Control and Backflow -Review of Water Utility CrossPrevention Program RequirementsConnection Control and Backflow -Review of
Water Utility Cross October 16, 2019
NEW INFORMATION Next Steps•Regulatory Requirements•Backflow Prevention Assemblies•ommon Backflow ConditionsC•Definitions of key terms•Connection Control and Backflow Prevention Workshop
#1-Cross Connection Control Program-CrossConnection Control Program-Cross
Cross BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross water supply. pressure of the polluted source exceeds the pressure of the potable supply. The contaminant enters the potable water supply when the where it is possible for a contaminant
to enter the drinking water public potable water supply and any other system or water source, an actual or potential connection between the : is connection-Cross•BACKGROUND / HISTORY
Connection Control Program-CrossConnection Control Program-
Cross pumpto a pressure source like a well or booster utility main pipe or increased pressure in the customer’s system due occurs when water flows backward due to a pressure loss in
the consumer’s plumbing system into the public drinking water supply into homes or businesses (customer). The backflow of water from a normal direction of water flow is from the utility
water main (supplier) is the undesired reversal of water flow through a pipe. The Backflow•BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross pail of soapy water or a hose immersed in a swimming pool or sink: a garden hose with one end immersed in a line. Examplemain water water system. Water or fluid can be siphoned
or pulled into the utility creates a vacuum as water drains toward the public Backsiphonage•BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross flowreversal of the normal direction of the point of consideration, which would cause or tend to cause a pressure, air pressure, etc.) above the distribution supply pressure at
(customer) piping system (by pump, elevation of piping, steam is any elevation of pressure in the downstream Backpressure•BACKGROUND / HISTORY Connection Control Program-CrossConnection
Control Program-
Cross BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross Unreported water sources (wells, grey water systems)•Private water pump systems•leaning systemscCommercial •Chemical feed/dosing systems, beverage machines•Recirculating pumps
for commercial and industrial boiler systems•Backpressure•Unauthorized use of fire hydrants•Common garden hose left in pet dish, swimming pool or storage container•Mop sinks in commercial
offices, retail businesses and restaurants•Chemical storage containment areas within commercial facilities•Unprotected fire sprinkler systems (glycol, black iron pipe)•Backsiphonage•connection
and backflow -Common conditions contributing to cross•BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross health agency, or with another agency approved by the health agencydirectly by the water supplier or by means of a contract with the local program. The program, or any portion
thereof, may be implemented connection control -contamination by implementation of a crossThe water supplier shall protect the public water supply from •Regulations (CCR)Requirements
outlined in Title 17 of the California Code of •BACKGROUND / HISTORY Connection Control Program-CrossConnection Control Program-
Cross backflow preventersmaintenance of records of locations, tests, and repairs of preventers The The establishment of a procedure or system for testing backflow •programconnection
-carry out the crossconnection control to -The provision of at least one person trained in cross•bothconnection or within the user's premises or the water user at the user's Backflow
protection requirements by •occurare likely to connections -crossThe conducting of surveys to identify water user premises where •programconnection -The adoption of operating rules
or ordinances to implement the cross•following include the purpose of addressing the requirements of connection control program shall for the -water supplier's crossThe •BACKGROUND
/ HISTORY Connection Control Program-CrossConnection Control Program-
NEW INFORMATION cheduleSee FMiscellaneous Connection Control Program -Control Program and establishing a CrossConnection -for amendments to the District Code pertaining to the CrossStaff
recommendation for consideration by the Board –th November 20•Program-costs associated with managing the District’s Crosseview of operational challenges and RWorkshop #2 –th November
6•connection control program requirements-backflow and California crossigh level overview the components of HWorkshop #1 –th October 16•Connection Control Program Workshop-•Connection
Control Program-CrossConnection Control Program-Cross
FISCAL IMPACT There is no direct fiscal impact associated with this workshop item•Connection Control Program-CrossConnection Control Program-Cross
RECOMMENDATION Provide input to staff•Connection Control Program-CrossConnection Control Program-Cross