Storage Tank Systems for Petroleum Products and Allied Petroleum Products Regulations

26 In the case of a storage tank system that is not equipped with continuous leak monitoring, if the owner or operator of the storage tank system has reasonable grounds to believe that any of the following components of the system is leaking, they must test or inspect the component as follows:

• (a) in the case of an underground tank, they must test that tank using the tank precision leak detection test in accordance with section 21;

• (b) in the case of an aboveground vertical tank, they must inspect the tank in accordance with subsection 22(2) or the floor of that tank in accordance with subsection 22(3);

• (c) in the case of an aboveground horizontal tank, they must visually inspect the walls of that tank to determine if the tank is leaking;

• (d) in the case of underground piping, they must test that piping using the piping precision leak detection test in accordance with section 24;

• (e) in the case of aboveground piping, they must visually inspect the walls of that piping to determine if the piping is leaking; or

• (f) in the case of a turbine, transition, dispenser or pump sump, they must perform a static liquid media leak detection test that respects the following conditions:

  • (i) the test has a duration of at least one hour,

  • (ii) the level of the test liquid exceeds the elevation of the sump’s piping and of other points of entry into the sump, and

  • (iii) there is no measurable loss of liquid in the sump.