5. It is prohibited to install a catchment work less than(1) 30 m from any non-watertight wastewater system. However, where that distance cannot be complied with, a tube well that complies with the standards provided for in subparagraphs 1 to 3 of the second paragraph of section 10 may be installed at a distance of at least 15 m from a non-watertight wastewater system; or
(2) 15 m from a watertight wastewater system.