Franklin Fueling Systems Tank Sentinel (TS-1001, 2001, 504, 508 & 750) Operators Guide Rev. C - Manual (Page 67)

Leak Testing Page 4 - 1 4
4 Leak Testing
All INCON Tank Sentinel 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). Third Party Testing Laboratory test results (for standard [static]
tank leak tests) are also available upon request.
Overview
The tank gauge can be programmed to run automatic tank or line leak tests on a regular
schedule (either daily, weekly or monthly basis). In addition, leak tests can be started
manually from the console keypad – by using the
TEST key.
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 when disturbed. Deliveries and dispenses will cause
thermal instability or product turbulence, which will interfere with and disturb a tank leak
test. These disturbances may cause the test to report a failure, or an increase 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
starting 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 size of the tank, volume 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 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 be programmed to run only when tank levels are at or above
a set value ( or percent full to qualify ).
Contents:
Leak Testing — Overview
Tank Leak Tests – Type and Frequency
Requirements — Before Starting a Tank Test
When to Run Tank Leak Tests
Starting Tank Leak Tests
Tank Leak Test Results
Reasons Why Tank Leak Tests can Fail
TS-LLD Line Leak Tests
Type and Frequency
Requirements, When to Run Line Leak Tests
Starting Line Leak Tests
When a Line Leak – Test Fails / is Detected
Steps to take When a Line Leak is Detected
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