SUPERSEDED Reference Document

                                                                                         ADG Consulting Pty Ltd


7    Noise & odour management
7.1 Responsibility
     The Project Manager is responsible for ensuring the appropriate management of noise and odour during
     dewatering operations.
7.2 Operational policy
     To minimise noise and odour emissions generated from the site during dewatering.
7.3 Performance criteria
     The appropriate criteria to measure the performance of dewatering management at the site are provided
     below.
     1.    No noise or odour related complaints received from neighbouring residents or the community.
     2.    No degradation of air quality due to fumes or odours emanating from the dewatering process.
7.4 Implementation strategy
     Noise and odour emissions will be managed as described in the following sections.
7.4.1 Noise
     All dewatering equipment must be operated appropriately and maintained in good working order. All
     dewatering systems and plant must be fitted with the appropriate noise reduction equipment to comply
     with the performance criteria. Non‐complying dewatering plant will be replaced or repaired as necessary.

     It is proposed to employ noise mitigation strategies including use of electric pumps and dewatering
     systems rather than diesel powered equipment. Noise attenuation blankets and screens will be installed
     around noise generating dewatering pumps and equipment where practicable. Noise monitoring
     equipment (unattended) will be installed by the site manager prior to commencement and monitored for
     the duration of dewatering.
7.4.2 Odour
     All dewatering plant must be fitted with the appropriate emission reduction devices. Where practicable,
     all dewatering plant will be sealed to prevent the release of odours to the atmosphere. Fine mist odour
     control sprays will be applied to reduce offensive odours if complaints are received from neighbouring
     residents.
7.5 Monitoring
     An inspection of the site and dewatering equipment shall be undertaken daily by the Site Manager to
     identify the following:
          Excessive noise being generated by the dewatering systems and plant; and
          Strong or offensive odours being generated by the dewatering equipment and/or extracted
           groundwater.
     If required by Council, noise monitoring equipment (unattended, continuous logging) is proposed to be
     installed by the Site Manager prior to commencement and monitored for the duration of dewatering.
     The Environmental Protection (Noise) Policy 2019 (EPP(Noise)) identifies specific acoustic quality
     objectives (noise criteria) to assist in preventing significant impacts on noise sensitive receptors and as a
     guide to long‐term acoustic quality for sensitive receptors. The primary EPP(Noise) criteria relevant to
     this investigation is outside a dwelling (i.e. adjacent dwellings), which should not have noise at levels in
     the daytime or evenings greater than 50dB(A) LAeq,adj,1hr. This means that noise levels in the receiving
     environment outside of nearby dwellings (i.e. on balconies) should not exceed an equivalent sound
     energy as would be received from a one hour continuous sound of 50 decibels on the A‐weighted scale
     (adjusted for tonal character perceptible by the human ear).




ADG1668.24 Dewatering Management Plan_Rev0_12.07.24                                                        Page 17