Metal and Diamond Mining Effluent Regulations

32 (1) An owner or operator who intends to close a mine shall

• (a) provide written notice of that intention to the authorization officer;

• (b) maintain the mine’s rate of production at less than 25% of its design rated capacity for a continuous period of three years starting on the day that the written notice is received by the authorization officer; and

• (c) conduct a biological monitoring study during the three-year period referred to in paragraph (b) in accordance with Division 3 of Part 2 of Schedule 5.

(2) A mine becomes a recognized closed mine after the expiry of the three-year period referred to in subsection (1), and any deposit from that recognized closed mine is subject to the prohibitions in subsection 36(3) of the Act.

(3) The owner or operator shall notify the authorization officer in writing without delay if the recognized closed mine reopens.

(4) The owner or operator referred to in this section shall keep at any place in Canada all records, books of account or other documents required by these Regulations for a period of not less than five years beginning on the day they are made, and shall notify the authorization officer in writing of their location.