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02/'15/04 16:07 FAX 925 422 2748 EPD / WGMG 003 WRITTEN MONITORING AND RESPONSE PLAN UNDERGROUND STORAGE TANK MONITORING PROGRAM This monitoring program must be kept at the UST location at all times. The information in this monitoring program are conditions of the operating permit. Lawrence Livermore National Laboratory (LLNL) Experimental Test Site 300 (Site 300) must notify the San Joaquin County Environmental Health Department, (209) 468-3420, within 30 days of any changes to the monitoring procedures, unless required to obtain the approval gfm making the change. Required by CCR 2632 (d) and 2641 (h). FACILITY NAME LLNL Site 300 go DATE: 7129/03 FACILITY ADDRESS Corral Hollow Road, south of Tracy. California 1. 1 Name(s) and Title(s) of the people responsible for performing the monitoring and/or maintenance. A current contact list is posted at Building 879 with this Monitoring Program (see attached). 2. Describe the frequency of performing the monitoring for: TANKS — Continuous electronic interstitial monitoring PIPING — Continuous electronic monitoring of the underground piping at the piping sump. 3. Describe the location(s) of where the monitoring will be performed. ie. location of sensors See attached facility and UST plot plans. 4. Describe the following equipment for each underground storage tank. Name and Model of Monitoring Panel Gilbarco EMC Name and Model of Line Leak Detectors Name and Model of Annular Sensors Name and Model of Piping Sensors Name and Model of Dispenser Sensors Type of overfill prevention U9-G3UI—VMIL-D--2000/879-DIUI—Not applicable Gilbarco Model 420 Gilharco Model 205 Mechanical overfill 5. Do the Turbine Sensors and Dispenser Pan Sensors shut down the turbine?* Yes E No El NA 0 Does the turbine shut down if a sensor is disconnected? — 879-G3U I Yes N No 0 NA El Does the turbine shut down if a sensor is disconnected? — 879-DlU I Yes 0 No 0 NA 0 Does the turbine shut down if the monitoring panel loses power? — 879-G3U1 Yes E No El NA 0 Does the turbine shut down if the monitoring panel loses power? — 879-DIU I Yes 0 No 0 NA 0 * The Pan Sensor Is a mechanical float; it does not shut down the turbine. This is not applicable to 879-D1U1. 6. How will the alarm history and subsequent maintenance be recorded? An alarm history is maintained by the Gilbarco system and can be printed out at the control panel. Inspections, maintenance activities (including annual maintenance and certification), alarms, and response are documented in the 879 Logbook located at the monitoring system control panel. In the event of a release, the information required in 23 CCR 2651 will be entered in the logbook when applicable. 7. Maintenance of the monitoring equipment must be performed at least once every 12 months. Describe the preventive maintenance schedule and recording for the monitoring equipment. at month will annual monitoring certification be performed in? Annual maintenance and certification occurs in October. A line tightness test of the double walled pressurized pipe (879-G3U1) also occurs annually. During the annual maintenance and certification, the in -tank magnetostrictive probe, the tank interstitial space sensor, and the piping sump sensor are removed and inspected for evidence of damage or deterioration, and tested to verify that they operate and trigger an alarm. Monitoring equipment is maintained as needed, and is annually certified by and independent contractor to be in proper operating condition according to manufacturer's specification, LLNL Industrial Electronics personnel may also perform additional inspection and testing. Documentation is recorded in the logbook (see item #6) and on the Monitoring System Certification form submitted to the County. Note: For new installations the secondary containment must be tested 6 months after installation. All secondary containment systems must be tested once every 36 months with initial testing performed before January 1, 2003. UST Monitoring Program 879-G3UI, 879-DIUI 1 of 6 - 2/26/04 sb