D.C. Municipal Regulations (Last Updated: September 13, 2017) |
Title 20. ENVIRONMENT |
Chapter 20-60. UNDERGROUND STORAGE TANKS - RELEASE DETECTION |
Section 20-6008. AUTOMATIC TANK GAUGING
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6008.1Automatic tank gauging equipment that tests for the loss of product and conducts inventory control shall meet the requirements of this section.
6008.2The owner or operator shall ensure that the tank-gauging probe is installed as close as possible to the middle of the tank and not adjacent to the fill pipe or submersible pump.
6008.3An automatic product level monitor test shall be capable of detecting a two-tenths gallon per hour (0.2 gal/hr) leak rate from any portion of the tank that routinely contains a regulated substance.
6008.4For tanks installed after November 12, 1993, if automatic tank gauging is to be used as a method of release detection, the tank must be installed horizontally without tank tilt.