Franklin Fueling Systems T5 Tank Sentinel Programming Guide - Manual (Page 35)

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Miscellaneous
Leak Testing
All TS-5 series console models meet (or exceed) the requirements of the U.S. Environment Protection Agency (EPA/530/
UST-90/006 test protocol) for Automatic Tank Gauging Systems (ATGS) for Monthly Monitoring for 0.2 gal/hr leaks of
Underground Storage Tanks. The system(s) also meet (or exceed) the requirements for Annual Tank Tightness Testing for
0.1 gal/hr leaks of the National Work Group on Leak Detection Evaluations (NWGLDE). For the most recent third-party
documentation, visit the NWGLDE website at www.nwglde.org.
Overview
Tank and/or line leak tests are performed on a regular schedule according to test type. In addition, leak tests can be
started manually from the console display or web interface.
To obtain valid results, leak tests should be started when conditions in the tank or line are stable and will remain stable
throughout the test (such as during non-business hours). A test will not and can not pass if tank and/or line conditions
are disturbed. Deliveries and dispenses will cause thermal instability or product turbulence, which will interfere with tank
leak testing. These disturbances may cause the test to report a failure, an increased result, or cause the test to run for 8
hours and report an indeterminate test result. Wait at least 6 hours after a product delivery, and 2 hours after product
dispensing stops, before forcing Tank Leak Tests.
Make sure there is enough time to run the test without interruption – print out a test Estimate Report before running a
tank test. Generally tank tests take about 4 to 5 hours to finish (the exact time required depends on the type of test being
performed, size of the tank, volume of product in the tank, and the product temperature).
The best time to test the tank integrity (leak test) is when it is full or nearly full. Regulatory requirements in some areas
insist on having a certain percentage of product in the tank before a test can be considered valid and in compliance. Try
to run tests on tanks that are 50% full or greater. SCALD leak tests can run only when tank levels are at or above the set
“Qualify” value.
Tank Leak Tests – Type and Frequency
Tank Testing software (option T) includes Static and SCALD tank testing. Both tests comply with federal, state and local
codes and regulatory agencies, which specify how often to run these tests. Consult and comply with these rules and
regulations.
Caution
It is the tank owner’s obligation to comply with the procedures and the reporting requirements of
federal, state and local regulations. You are legally bound to follow these regulations explicitly.
When policies conflict with this manual, follow the regulations.
Static Tank Testing Requirements
• Print a leak test Estimate Report.
• There must be enough quiet time to finish the test with no product dispensing.
Note: A 10,000 gallon tank requires about 5 or 6 hours to finish.
• Wait at least 6 hours after a product delivery – or – 2 hours after a product dispense. Active tanks without Stage II
vapor recovery may require longer stabilization periods.
INCON does not recommend running both Line & Tank Leak Tests at the same time.
When to Force Static Tank Leak Tests
• To comply with federal, state, and local regulatory agency requirements.
• To comply with the policy and procedures of your site.
• Whenever a leak detection sensor alarms — this is especially important when a discriminating BriteSensor detects a
liquid / vapor hydrocarbon (product). A failed leak test and BriteSensor product alarm indicates a tank or product-line
leak.
Note: Standard/product alarms may be caused by motor oil runoff during heavy rains, or because a BriteSensor has
detected a product leak from a tank. Take a sample from the area for chemical analysis.