54. Notwithstanding section 8, a tube well installed in accordance with subparagraphs 1 to 3 of the second paragraph of section 10 may be installed on a lot if, on 15 June 2003, there is on that lot a main construction authorized by the municipality and the dimensions of the lot do not comply with the distance referred to in section 8 applicable to a catchment work.
If, during the flow rate test provided for in section 19, water in sufficient quantity cannot be drawn from a tube well to meet domestic needs, a surface well or a well point may be installed instead of a tube well.