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05-019 Waller <br /> Page Two <br /> 4. What are the installation requirements for secondary <br /> containment, vehicle crash protection and labeling? <br /> There are no requirements forsewndary-containment. However, <br /> protection against physical damage shall be provided in accordance with <br /> Article 52, California Fire Code, Section 5202.13.3.12. <br /> 5. Does draining of the bladder and/or tank(CAS) (see Healy <br /> Operating Instructions) amount to dispensing as defined in the <br /> CFC? <br /> No. <br /> Foot note:The Intent of this footnote Is for reference only and to provide clarification.It Is not the Intent of the <br /> State Fire Marshal to endorse any one specific product,device or methodology. <br /> Description of Operation of the Healy Clean Air Separator'`: <br /> The Healy Systems,Inc., Model 9981 Healy Clean Air Separator"'is a stand-alone,completely mechanical device that <br /> assists in controlling the gasoline vapor emissions from a gasoline dispensing facility.It consists of a 400-gallon storage <br /> vessel with integral bladder and associated valving.It is connected to the ullage space of the GDF storage tanks via the <br /> venting system of the under ground storage tanks.During normal operation of the GDF,with today's concentration of <br /> ORVR vehicles approximating 20%,the storage tank ullage space will usually operate in the'0'to negative(up to 8'WC <br /> PN cracking pressure)pressure range.During'closed'periods of the GDF,the ullage pressure will usually begin to <br /> increase due to vapor growth inherent in the process of introducing air into the UST's. If the pressure goes slightly above <br /> atmospheric the vapor from the UST's will flow into the internal bladder.Conversely,when ORVR refueling begins and the <br /> UST pressure falls below atmospheric,the vapor internal to the bladder will be drawn back into the UST until the bladder <br /> is fully collapsed waiting for the next cycle. <br /> The Clean Air Separator``in over two and one half years(installed late September of 2002)of being in operation at our <br /> C.A.R.B.test site in Sacramento has been evaluated repeatedly to see if there is any liquid condensation in either the <br /> bladder or the space between the inner wall of the vessel and outer wall of the bladder.To date there has been no liquid <br /> found in either area. <br /> 3 <br />