Whsmp · OPW16/0021

                                                                                        SWMS:07 – Excavation & Trenching
Safe Work Methods
                                                                                                                                                               Responsible
                                                                                    H                         Controls / Work Methods                                            Residual Risk
                                                                                                                                                               Person/s for
          Job Steps                   Potential Hazards            L    C    R      O                  1. Eliminate 2. Substitute 3. Isolate 4. Engineer
                                                                                                                        5. Admin 6. PPE
                                                                                                                                                                Monitor &
                                                                                    C                                                                                            L    C    R
                                                                                                                                                                  Review
Performing excavation and        Falling objects                   C    4    E      5       Equipment and spoil is to be kept at a safe distance (at least   Workers           D     4    H
trenching work (Cont)                                                       18               600mm) from the sides of trenches.                                                            14
                                                                                    5       No person is to be in a trench whilst a load is being lifted     Licenced Dogger
                                                                                             over/into the trench.
                                                                                            Certificate of Competency (Dogger) required for slinging         Competent /
                                                                                    5        loads (e.g. pipes etc.) to be lifted (where relevant).           Licenced
                                                                                                                                                              Operators
                                                                                            Operators using earthmoving equipment in ‘crane mode’
                                                                                             are to be competent and hold applicable Certificate(s) of
                                                                                    5
                                                                                             Competency.
                                                                                            Earthmoving plant used in crane mode to be certified for
                                                                                             such use and to have load charts clearly displayed in cabin
                                                                                    5
                                                                                             (Note: refer to Mobile Plant SWMS).

                                 Falling into the excavation       C    3   H       4      Covers are to be placed on unattended excavations where           Workers           D     3    M
                                                                            13              applicable.                                                                                    9
                                                                                    3      Barricades or hoardings (at least 900mm high) and signs are
                                                                                            to be erected at least 1m from the edge where it is
                                                                                            impracticable to cover the trench, to restrict access to the
                                                                                            excavation.
                                                                                           Ladders are to be used for access and egress and spaced at
                                                                                    4       no more than 9 metres apart within the trench and are to
                                                                                            be secured.
                                 Inhalation of carbon              C    4    E      5      Where there is the risk of inhalation of carbon monoxide or       Workers           D     4    H
                                 monoxide                                   18              other impurity of the air, due to a person being in a trench /                                 14
                                                                                            excavation, a confined space entry permit is to be used
                                                                                            including performing air monitoring.
                                                                                    5      No person is to be in the trench when an excavator is in
                                                                                            operation and there is the risk of inhalation of carbon
                                                                                            monoxide.
                                                                                           Petrol driven machinery is not to be located in or near
                                                                                    5       trenches.


584 Milton Road TOOWONG QLD 4066                               SWMS Developed by:       Jamie Gilbert                                                             VERSION 8 – September 2015
P: (07) 3335 5000 F: (07) 3335 5005                            Position:                National HSE Coordinator                                                                     Page 54
ABN: 52 009 778 330