4356GOVERNMENT GAZETTE, WA 5 October 2016

4356 GOVERNMENT GAZETTE, WA 5 October 2016 in writing directing him or her to take, within the time specified in the notice, such measures as in the opinion of the Environmental Health Officer are necessary to— (a) control the prevalence; (b) effect the eradication; or (c) effectively prevent the breeding, of flies. 6.5 Local government may execute work and recover costs (a) a person is required under this Division or directed by a notice given under clause 6.4, to execute any work; and the local government may execute the work and may recover from that person the cost of executing the work, in addition to any penalty for which that person may be liable under this local law. (2) The costs and expenses incurred by the local government in the execution of a power under subclause (1) may be recovered in a court of competent jurisdiction from the person referred to in subclause (1). Division 2—Mosquitoes 6.6 Interpretation mosquitoes means any of the two-winged insects constituting the family Diptera Culicidae commonly known as mosquitoes. 6.7 Measures to be taken to prevent mosquitoes breeding (1) An owner or occupier of premises shall ensure that the premises are kept free from possible mosquito breeding sites and shall— (a) follow any direction of an Environmental Health Officer for the purpose of— (i) controlling the prevalence of mosquitoes; (ii) eradication of mosquitoes; or (iii) effectively preventing the breeding of mosquitoes. (b) assist the Environmental Health Officer to locate any possible mosquito breeding sites that may be present in or about the premises. (2) An owner or occupier of premises where water is kept in a horse trough, poultry drinking vessel or other receptacle shall— (a) frequently change the water; and (b) keep the water clean and free from vegetable matter and slime. (3) An owner or occupier of premises, where a septic tank is installed, shall ensure the fixture is in a sound condition at all times, and mesh having openings no larger than 1.2 millimetres, covers any educt vent to the system. (4) Where there is a swimming pool on any premises where the circulation system does not function, or has not been used such that the pool water is green or stagnant and suitable for breeding mosquitoes, the owner or occupier shall, when required by a notice issued by an Environmental Health Officer— (a) reactivate the pool circulation system within a time specified and operate it so that the water is filtered for as many hours as may be specified; and/or (b) chlorinate and adjust the pH of the pool to— (i) 4 milligrams per litre free chlorine; and (ii) pH within the range 7.2–7.6; or (c) empty or drain the pool; or (d) add a larvicide to the pool at the specified rate; and (e) maintain the pool water free of mosquito breeding. (5) An owner or occupier of land shall cause all drains and channels in or on the land to be kept in good order and free from obstruction. 6.8 The local government may execute and recover costs (a) a person is required under this division or directed by a notice given under clause 6.7 to execute any work; and the local government may execute the work and recover from that person the cost of executing the work, in addition to any penalty for which that person may be liable.