Reference Document - Dewatering Management Plan (For Stamping) MCU25/0053 & OPW25/0074

                                                                                                                   ADG Consulting Pty Ltd


                      7        Noise & odour management
                      7.1      Responsibility
                               The Site 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 may be installed
                               around noise generating dewatering pumps and equipment where practicable, if required. Noise
                               monitoring equipment (unattended) will be installed by the site manager prior to commencement and
                               monitored for the duration of dewatering, if required.
                      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.
                                   Strong or offensive odours being generated by the dewatering equipment and/or extracted
                                    groundwater.

                               If required by Council, noise monitoring equipment (unattended, continuous logging) may need 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).

                               While this report has not been generated for the purpose of assessing compliance with the requirements
                               of workplace health and safety legislation, it is noted that a person conducting a business or undertaking

                          ADG1777.25 Dewatering Management Plan_Rev0_01.05.25                                                        Page 18




Document Set ID: 23735664
Version: 1, Version Date: 12/05/2025