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Underground Storage Tank Management Compliance Assistance Seminar 2010 PRODUCT LINE LEAK DETECTION Katie Roberts AMER

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Underground Storage Tank Management Compliance Assistance Seminar 2010 PRODUCT LINE LEAK DETECTION Katie Roberts AMER

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    1. Discussing LINE LEAK DETECTION for 2 types of product conveyance systems: SUCTION systems PRESSURIZED systems Discussing LINE LEAK DETECTION for 2 types of product conveyance systems: SUCTION systems PRESSURIZED systems

    3. Suction System LEAK DETECTION Requirements: For COMMON systems (one is required): Product Pipe Tightness Test Every 3 Years Monthly Interstitial OR Vapor Monitoring Monthly Statistical Inventory Reconciliation For EUROPEAN systems (all are required): Piping must slope back to the tank. Only one check valve, and it must be installed as close as practical to the pump. The above must be verifiable.

    5. Must be equipped with an automatic line leak detector which must be tested annually, and use one of the following: Annual Line Tightness Testing Monthly Vapor Monitoring Monthly Groundwater Monitoring Monthly Interstitial Monitoring Monthly SIR Pressurized System LEAK DETECTION Requirements:

    6. Federal EPA Requirements for Automatic Line Leak Detectors (LLDs): Can detect a 3-gallon per hour leak, at a line pressure of 10-psi, within 1 hour. When a leak is detected, LLDs must shut off the product flow, restrict the product flow, or trigger an audible or visual alarm. Must have a Third Party Certification. Pressurized System LEAK DETECTION Requirements:

    7. Only the most common types, manufacturers, and configurations are represented in this presentation. Only the most common types, manufacturers, and configurations are represented in this presentation.

    8. Electronic Pressurized Line Leak Detectors (PLLDs)

    9. No leaks at the STP or leak detector. No reduced flow. No liquids in secondary containment. No alarms. ATG = Automatic Tank GaugeATG = Automatic Tank Gauge

    10. Examples of what not to do…

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