The applicant's position
20The reason why the applicant seeks longer working hours on a Saturday is explained in the affidavit of Mr Picciau, the applicant's project manager. His evidence is that the current condition 13 does not work in practice. He states "...it places an unreasonable financial burden on this applicant's head contractors because they need to pay staff for a full days work on Saturday even though they can only work for 4 hours". Mr Picciau also states that, "...more often than not, many of the contractors simply do not turn up on Saturdays or if they do, they only bring a skeleton staff. As a result construction progresses very slowly on Saturdays, and sometimes not at all".
21The building is presently constructed to its third level. It is essentially a shell with walls. The work that the applicant proposes to carry out during extended hours on Saturdays is limited to "...tiling, partitioning, gyprocking, carpeting, rendering, bricklaying, formwork, plumbing, electrical, mechanical (installation of air conditioning) metalwork, waterproofing, glazing, carpet laying, landscaping and joinery). It is described as being 'light works' to be mostly carried out in the shell of the building.
22The basement car park is also near completion and, in an effort to address the Council's concern about on street parking by the site's contractors, the applicant agrees to the imposition of a condition that requires all contractors to park their vehicles onsite in the basement car park. The terms of the proposed condition are set out in Exhibit J.
23In response to the Council's concern about unacceptable noise generated during the extended work hours from12 till 4pm, the applicant agrees to a condition requiring noise monitoring by a statistical noise logger supplemented by attended monitoring. The terms of this acoustic condition are as follow:
An accredited acoustic consultant will undertake the attended noise monitoring. All noise monitoring will comply with the AS 1055.1 - 1989 and the statistical parameters to be measured will be the LA min, LA 90, LA 10, LA1, LA MAX and LA eq over consecutive 15-minute periods.
The unattended noise monitoring will also be configured to trigger a visual onsite alarm and send an SMS alert to the site manager and other personnel nominated by the applicant, if construction noise exceeds a warning level of 45 dBA LAeq (15 mins) and a halt level of 47dBA LA eq (15 mins).
Exceedence of the warning level would not require construction to cease, but rather alert the site manager to proceed with caution.
An exceedence of the halt level would require the site manager to implement an alternative construction technique that does not exceed the halt level.
A site manager shall be onsite at all times during the extended hours and will be responsible for compliance with the ACNUMP. Prior to carrying out the works during the extended hours the site manager shall be inducted by the accredited acoustic consultant so as to be familiar with the conditions of this plan and the operation of the noise monitoring equipment.
24To further minimise noise between the hours of 12 and 4pm the applicant agrees that "no hammer drill is to be used during the extended hours of operation on Saturdays" and, that a mobile sound barrier is to be erected around noisy activities or machinery.