8.30. An underground tank must be installed(1) at least 1 m from the foundations of any building;
(2) at least 1 m from any other tank;
(3) at least 1 m from the property line;
(4) at least 750 mm from the inner wall of the excavation; and
(5) in such manner that the loads carried by the foundations or the supports of a building cannot be transmitted to the tank; in addition, the soil must not be removed from the footing down to the bed of the excavation, in a 45 ° slope.