61. Absorption field: The absorption field referred to in section 54 and built with a gravity feed system must comply with the standards in subparagraphs a, d, e, f, g, g.1, g.2, g.3, h and h.1 of the first paragraph of section 21, subparagraphs a and c of the first paragraph of section 27 and subparagraph b of the first paragraph of section 37, and with the following standards:(a) where the absorption field is built on level ground, the grade of the earth backfill on each side of the absorption field must be not more than 33%;
(b) where the absorption field is built on sloped ground, the grade of the earth backfill on each side of the absorption field must be not more than 33%, with the exception of the front side of the slope where it must be not more than 25% with backfill at least 6 m long;
(c) the bottom of the bed of crushed stone of the absorption field must be at least 30 cm from the bedrock, underground water or impermeable layer.
The absorption field referred to in section 54 and built with a low pressure feed system must comply with subparagraphs a, b and c of the first paragraph of this section, subparagraphs d, e, f, g, g.1 and g.2 of the first paragraph of section 21, subparagraphs a and b of the second paragraph of that section, subparagraphs a and c of the first paragraph of section 27 and subparagraph b of the first paragraph of section 37.
R.R.Q., 1981, c. Q-2, r. 8, s. 61; O.C. 786-2000, s. 53; 306-2017O.C. 306-2017, s. 361.