Filling in of pools, etc. which are a nuisance.- (1) If in the opinion of the Commissioner.

(a) any pool, ditch, tank, well, pond, bog, swamp, quarry, hole, drain, cess-pool, pit, water-course, or any collection of water, or (b) any land on which water may at any time accumulate is or is likely to become a breeding-place of mosquitoes or in any other respect a nuisance, the Commissioner may, by notice, require the owner or person having control thereof to fill up, cover over, weed and stock with larvicidal fish, petrolize, drain or drain off the same in such manner and with such materials as the Commissioner shall direct or to take such order with the same for removing or abating the nuisance as the Commissioner shall direct. (2) If a person on whom a requisition is made under sub-section (1) to fill up, cover over, or drain off a well, delivers to the Commissioner within the time specified or compliance therewith written objections to such requisition, the Commissioner shall report such objections to the council, and shall make further inquiry into the case, and he shall not institute any prosecution for failure to comply with such requisition except with the approval of the council, but the Commissioner may nevertheless, if he deems the execution of the work called for by such requisition to be of urgent importance proceed in accordance with section 475 and, pending the decision of the council on the question whether the said well shall be permanently filled up, covered over, or otherwise dealt with, may cause such well to be securely covered over so as to prevent the ingress of mosquitoes, and in every such case, the Commissioner shall, with the approval of the council, determine whether the expenses of any work already done as aforesaid shall be paid by such owner or by the Commissioner out of the municipal fund or shall be shared and, if so, in what proportions.