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dwdw AUJLTIC TANK LEVEL MONITORING <br />CONTINUOUS ELEC' • • • 1 OF 1 PIPING <br />TANKS <br />All Underground Fuel Storage Tanks are Double Wall Fiberglass construction. <br />FUEL LINES <br />All Fuel Line construction is Double Walt Fiberglass. <br />VEEDER ROOT - TLS 350 MODEL / SIMPLICITY TANK & LINE MONITOR <br />The design of this unit and the Simplicity Service Offering is to provide 24 hour remote tank and line <br />compliance monitoring through Veeder-Root (V -R) in Greensboro, North Carolina, which would receive <br />audible and visual alarms and provide corrective actions and tracking, in the event of leak detection. This <br />system is interfaced to the manufacturer's computer system via satellite dish or phone line. The <br />communication status is checked monthly by V -R. The expected V -R alarm response time is 15 minutes <br />from the .time the facility goes into alarm and Greensboro starts the corrective actions. The monitor <br />retains 12 months of alarm history. The fLcft receives audible and visual alarms at the TLS 350 <br />console, which reflect (1) lost communication, "Autodial Failure" and/or (2) gross line failure "Line Leak <br />Shutdown." The facility personnel would call V -R for these events. Autodial Failure will cause the TLS <br />350 to come out of the remote monitoring mode and all alarms/warnings will occur on-site and will be <br />responded to by on-site personnel. If power is removed from the V -R monitoring panel, the facility will <br />not be able to pump fuel. The authorized installation service contractor (Service Station Systems 1-800- <br />628-5510) would provide the training necessary to operate the tank and line monitoring system per the <br />manufacturer guidelines. The facility operator is responsible for daily inspection of the monitoring. panel <br />(Alarm Panel Test Log - pending Agency requirements) and corrective actions indicated above and <br />maintaining monthly and annual tests/reports on-site. For additional compliance items/reports, contact <br />Shell's SH&E Compliance Coordinator. Optional facility audible and visual alarms can also be <br />programmed, but this would take the system out of the remote monitoring mode, which leaves the facility <br />operator responsible for calling V -R for all alarm conditions and logging all events and corrective <br />actions manually (not reliable, not recommended). All component parts are LG -113 approved. <br />TANK AND LINE TESTING <br />The Veeder Root (V -R) system provides electronic Continuous Statistical Leak Detection (CSLD) <br />monitoring of the fuel tanks, Pressurized Line Leak Detection (PLLD) of the fuel lines and continuous <br />annular interstice monitoring at double walled facilities containment. In the event that a leak is detected, <br />the system provides automatic notification through the phone line or satellite dish to V -R. Hard copies of <br />monthly tank and line test results are to be mailed to the facility within the first two weeks of the <br />following month by V -R. The operating facility is responsible to maintain these compliance reports on <br />site. The TLS 350 is annually inspected, repaired and certified operational by an authorized service <br />contractor. The certification is sent to the local regulatory agency. <br />Tanks (Fuel): Continuous electronic monitoring of the wet or dry annular/interstice and CSLD, <br />continuous electronic testing at 0.2 gallon per hour (gph). A malfunctioning tank will result with an alarm <br />automatically transmitted to V -R, which would in turn contact their service contractor for investigation <br />and repair. There would be no fuel leak to ground in the event that the primary tank failed unless the <br />secondary, were to also fail. Clean up of the secondary containment would be performed per Local and <br />State requirements. <br />Pressurized Fuel Lines: Continuous electronic monitoring of the dry secondary containment within the <br />turbine sump, positive shutdown if a leak is detected. Also PLLD continuous electronic testing 3.0 gph <br />(positive shutdown), 0.2 gph (monthly/alarm) and 0.1 gph (annually/alarm), in combination with a turbine <br />sump liquid sensor. If a gross leak alarm occurred here, the result would be fuel line shut down with no <br />leak to ground [(Dry) annular/interstice]. A malfunctioning fuel line will result with an alarm <br />automatically transmitted to V -R, which would in turn contact their service contractor for investigation <br />and repair. Clean up of the secondary containment would be performed per Local and State requirements. <br />If equipped, remote fill lines at the tank inlet are contained and continuously monitored (alarm). <br />Under Dispenser Containment: Continuous electronic sensor, designed to shut off the dispenser in the <br />event of leak detection. <br />Turbine Sump Containment: Continuous electronic sensors, designed to shut the turbine down in the <br />event of leak detection. <br />Tank Overfill Protection: Flapper valve with flow shut-off at 90%. <br />7/5/07 dwdw <br />