117. The following activities, including any subsequent operation, are eligible for a declaration of compliance on the conditions set out in the second paragraph:(1) the establishment of a sand pit;
(2) in the case of a sand pit established before 17 August 1977, the enlargement of the sand pit onto land that did not belong, on that date, to the owner of the sand pit;
(3) the enlargement of a sand pit beyond the area or boundaries specified in the authorization.
The following conditions apply to the activities referred to in the first paragraph:(1) the sand must be established or enlarged at least 150 m from a dwelling or public institution;
(2) the total area of the sand pit must not exceed 10 ha;
(3) the quantity of non-consolidated surface mineral substances extracted annually must not exceed 100,000 tonnes;
(4) the non-consolidated surface mineral substances extracted must not be washed in the sand pit;
(5) the maximum depth of the sand pit must lie above the water table.