15. Septic Tanks
A septic tank shall comply with the following requirements—
(a) except with the approval of the Sewerage Authority it shall be not less than 50 feet from any piped water supply, well, spring or stream of water used or likely to be used by man for drinking or domestic purposes or for the manufacture or preparation of articles of food or drink for human consumption or for the cleansing of vessels with a view to the preparation or sale of such articles and otherwise in such a position as not to render any such water liable to pollution, or less than 10 feet from any dwelling house or public building or any building in which any person is employed in any manufacture trade or business;
(b) it shall be so constructed and situated that there shall be ready means of access for cleaning it and removing its contents without carrying them through any dwelling house or public building or any building in which any person is employed in any manufacture trade or business;
(c) the effluent from every septic tank shall discharge through a drain not less than 6 feet in length into a properly effluent, constructed effluent disposal system which shall be not less than 50 feet from any piped water supply, well, spring or stream of water as described in paragraph (a) above;
(d) it shall be of approved design so constructed as to be impervious to liquid either from the outside or the inside and if constructed of brickwork or precast concrete sections shall be rendered inside with mortar and it shall be covered and ventilated or provided with an adequate mechanical means for draining off gases to the satisfaction of the Sewerage Authority.