32. Installation conditions: Where the effluent of a treatment system is carried towards a soil absorption system and a soil absorption field or a seepage bed may not be built because it is impossible to comply with the standards in section 18 or 28, the treatment system must be connected to one or more seepage pits insofar as the following conditions are met:(a) the soil of the disposal site must be high permeability soil;
(b) the bedrock, underground water or any layer of permeable, low permeability or impermeable soil must be at least 3 m below the surface of the disposal site;
(c) the grade of the disposal site must be less than 30%;
(d) the isolated dwelling must contain 3 or fewer bedrooms.