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- 5 - <br /> 4. There is no length restriction for the vapor return piping of the system as long as the <br /> system complies with the maximum pressure drop requirement, item 1 of the Vapor <br /> Collection section. <br /> 5. No product shall be dispensed from any fueling point at a GDF installed with the VST <br /> Phase II EVR System if there is a vapor line that is disconnected and open to the <br /> atmosphere. <br /> 6. No liquid condensate traps or Bulk Plant Operations are allowed with this system. <br /> Dispensers <br /> 1. The dispenser vapor piping must be sized adequately to meet the maximum pressure <br /> drop requirement, item 1 of the Vapor Collection section. <br /> 2. Dispenser vapor piping shall be installed so that any liquid in the lines will drain toward <br /> the dispenser riser. <br /> In-Station Diagnostics (ISD) <br /> 1. The gasoline dispensing facility operator/owner shall comply with local district <br /> requirements, if any, following a warning by the Veeder-Root In-Station Diagnostics <br /> (ISD) system and shut down of the submersible pumps to all gasoline tanks by the ISD <br /> systems. <br /> 2. Suggested Troubleshooting, found in Table 12-3 of the Veeder-Root In-Station <br /> Diagnostics (ISD) Install, Setup, and Operation Manual (ARB Approved Installation, <br /> Operation, and Maintenance Manual), recommends that certain tests be conducted to <br /> verify the cause of the ISD warning or failure alarms. Districts may require that these <br /> tests or other tests specified by the districts be conducted in response to the ISD alarms. <br /> 3. For this certification, the baseline vapor collection performance value used was 1.0. <br /> This value will not be used for enforcement purposes. <br /> Phase I System <br /> 1. The Phase I system shall be an ARB-certified system that demonstrates compliance with <br /> the static pressure decay test criteria contained in TP-201.3 and Exhibit 4. <br /> Maintenance Records <br /> 1. Each GDF operator owner shall keep records of alarms and maintenance performed at <br /> the facility. Such records shall be maintained on site in accordance with district <br /> requirements or policies. The records shall include alarm date and time, nature of the <br /> alarm, troubleshooting, maintenance or repair performed to validate and/or correct <br /> alarms, component, or system failures, date when maintenance or repair was <br /> conducted, name and Certified Technician Identification Number of individual conducting <br /> maintenance or test, affiliation, and telephone number. Additional information may be <br /> required in accordance with local district requirements. An example of a GDF <br /> maintenance and alarm record is shown in Figure 213-13. <br /> VST Phase 11 EVR System Including Veeder-Root ISD, Exhibit 2 -VR-204-H <br />