5158GOVERNMENT GAZETTE, WA 3 November 2022

5158 GOVERNMENT GAZETTE, WA 3 November 2022 6.5 Measures to be taken by occupier An 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. Where it appears to the authorised officer that there is, on any premises, undergrowth or vegetation likely to harbour mosquitoes, the authorised officer may direct the owner or occupier of the premises to cut down and remove within a specified time the undergrowth or vegetation. 6.6 Removal of undergrowth or vegetation Where it appears to an Authorised Officer that there is, on any premises, undergrowth or vegetation likely to harbour mosquitoes, the officer may direct, orally or in writing, the owner or occupier of the premises to cut down and remove within a specified time the undergrowth or vegetation. 6.7 Filling in excavations etc. A person who undertakes any activity on any land which creates an excavation likely to hold water and cause mosquito breeding shall as soon as practicable following the completion of the activity, and taking into consideration the purpose of the excavation, ensure that the excavation is filled in with clean material and made level with the surrounding surface or alternatively treated with an approved pesticide to control mosquito breeding. 6.8 Drains, channels and septic tanks An owner or occupier of land shall— (a) cause all drains and channels in or on the land to be kept in good order and free from obstruction; and (b) where a septic tank is installed on the land— (i) apply an approved larvicide according to the direction on the container, into the septic tank system, whenever directed to do so by an Authorised Officer; and controlling the prevalence of mosquitoes; and (ii) provide, and keep in sound condition at all times, wire mesh having openings no larger than 1.2 millimetres covering any inlet vent to the tank. 6.9 Drainage of land An owner or occupier of land upon which there is water liable to become a breeding place for mosquitoes shall, when required by the local government, effectively drain the land and, for that purpose, shall— (a) make or provide drains on the land; (b) remove all irregularities in the surface of the land; and (c) if necessary, adjust the surface of the land or raise the level of the surface in such a manner that— (i) the water on the land may flow into the drains without obstruction; (ii) no water shall remain on any portion of the land other than the drains; and (iii) keep all drains in good order and free from obstruction. Division 3—Rodents 6.10 Interpretation In this division rodents means those animals belonging to the order Rodentia and includes rats and mice but does not include native rodents, laboratory bred rats and mice or animals (other than rats) kept as pets in an enclosure designed for the purpose of keeping as pets animals of that kind. 6.11 Measures to be taken to eradicate rodents (a) An owner or occupier of premises shall at all times take effective measures to eradicate any rodents in or on the premises. (b) A person must not store, or allow to be stored, on any premises, any food, refuse or other waste matter unless it is contained in a rodent proof receptacle or compartment. (c) An Authorised Officer may direct, orally or in writing, an owner or occupier of premises to take whatever action, in the opinion of the Authorised Officer, is necessary to prevent the presence of rodents in or on the premises. Division 4—Cockroaches 6.12 Interpretation This this division cockroach means any of the various orthopterous insects commonly known as cockroaches. 6.13 Measures to be taken to eradicate cockroaches (1) An owner or occupier of premises shall take effective measures to eradicate any cockroaches in or on the premises. (2) An Authorised Officer may direct, orally or in writing, an owner or occupier of premises to take whatever action is necessary to prevent or deter the presence of cockroaches in or about the premises. (3) An owner or occupier shall within the time specified comply with any direction given by an