B-1.1, r. 2 - Construction Code

Full text
8.65. A contractor or owner-builder may not construct a diked area for an aboveground tank, unless
(1)  the diked area has a drainage system such as a sump or a channel located at its lowest point and has a closed valve to drain the water;
(2)  the control for the drainage system valve is accessible at all times;
(3)  the bottom of the diked area has a uniform slope of at least 1% between any tank and the lowest point; and
(4)  the diked area complies with section 22.11.2.6 of NFPA Standard 30 Flammable and Combustible Liquids Code, published by the National Fire Protection Association, if it contains more than 1 tank.
O.C. 220-2007, s. 1; 87-2018O.C. 87-2018, s. 32.
8.65. A contractor or owner-builder may not construct a diked area for an aboveground tank, unless
(1)  the diked area has a drainage system such as a sump or a channel located at its lowest point and has a closed valve to drain the water;
(2)  the control for the drainage system valve is accessible at all times;
(3)  the bottom of the diked area has a uniform slope of at least 1% between any tank and the lowest point; and
(4)  the diked area complies with paragraph f of section 4.3.2.3.2 of NFPA Standard 30 Flammable and Combustible Liquids Code, published by the National Fire Protection Association, if it contains more than 1 tank.
O.C. 220-2007, s. 1.