The Ontario Building Code | Tanks

8.2.2.2. Tanks

(1) Subject to Sentence (3), a tank that is used as a treatment unit in a Class 4 sewage system or a holding tank in a Class 5 sewage system shall conform to the requirements of CSA B66, "design, Material, and Manufacturing Requirements for Prefabricated Septic Tanks and Sewage Holding Tanks".

(2) Subject to Sentence (3), material standards, access and construction methods and practices for a tank used for other Classes of sewage systems shall conform to the requirements of CSA B66, "design, Material, and Manufacturing Requirements for Prefabricated Septic Tanks and Sewage Holding Tanks".

(3) Tanks referred to in Sentences (1) and (2) are not required to conform to the requirements of Clause 10.2.(j) of CSA B66 "design, Material, and Manufacturing Requirements for Prefabricated Septic Tanks and Sewage Holding Tanks".

(4) Sentence (2) does not apply to a tank that is an integral part of a prefabricated Class 1 sewage system.

(5) Access openings="http://thehandyforce.com/windows/" title ="Window installer in Toronto">openings shall be located to facilitate the pumping of all compartments and the servicing of the inlet and outlet of each compartment not accessible by removal of the tank top or part of it.

(6) A tank shall not be covered by soil or leaching bed fill having a depth greater than the maximum depth of burial that the tank is designed to withstand.

(7) A tank shall be securely anchored when located in an area subject to flooding or where ground water levels may cause hydrostatic pressures.