279. The composting of residual materials is exempted from authorization pursuant to this Division when the compost produced is used by the operator, on the following conditions:(1) the inputs other than the structuring material are generated by the operator;
(2) the total volume of materials on the lot is less than 500 m3 at all times in the case of a raising site or spreading site and 150 m3 in other cases;
(3) the operator does not carry on the same activity within a radius of 500 m;
(4) the activities are carried on 75 m or more from any dwelling or public institution, other than a dwelling owned by or rented to the owner or operator;
(5) the inputs consist of vegetable matter only and comprise(a) green residue, namely bark, leaves, grass clippings, shrub clippings, organic materials from plant cultivation, wood shavings, wood chips, sawdust and macrophytes;
(b) food residue that meets the following conditions:i. it comes from the preparation or distribution of food and drinks;
ii. it is generated by a sector other than the residential sector;
iii. it is sorted on the site where it is generated and collected in bulk;
(6) the plant matter does not contain:(a) human faeces or urine, or bathroom tissue;
(b) livestock waste;
(c) animal carcasses and other animal matter;
(d) varnished, painted, stained, treated or engineered wood, or wood contained in oriented strand board, plywood or particle board, and any wood from a sorting station for construction or demolition materials;
(e) invasive exotic terrestrial plant species;
(7) the dryness of the composting pile is equal to or greater than 30%.