environmental impact statement kilmainhamwood compost facility ...

5361- Kilmainhamwood Compost Facility Extension- EIS
Table 10.4 Typical maximum permissible noise levels at the façade of dwellings during
construction activities (NRA Draft guidelines for the treatment of noise and vibration in national road
schemes 2004)
Day & Times LAeq (1hr) dB LAmax dB
Monday – Friday (07:00 to 19:00 hrs) 70 80
Monday – Friday (19:00 to 22:00 hrs) 60 1 65 1
Saturday (08:00 to 16:30 hrs) 65 75
Sundays and Bank Holidays (08:00 to 16:30 hrs) 60 1 65 1
1
Construction activities at these times, other than that required in respect of emergency works, will normally
require the explicit permission of the relevant local authority.
The predicted construction noise levels in Table 10.3 are in full compliance with the recommended
noise levels for construction projects, and are significantly below the applicable threshold. As the
predicted values are a worst-case assessment the impact is likely to be slight to moderate on noise
sensitive locations, when the ambient noise levels are taken into account. The temporary nature of the
construction period and the variety of machinery used should ensure that no construction activity is
operational for long periods. This phase will therefore result in short term impacts, and will in all
probability not be as loud as the worst-case predictions in Table 10.3.
10.3.2 Operational Phase
The proposed extension to the currently operating composting facility is intended to operate on a 08:00
to 18:00 basis Monday to Friday and 08:00 to 13:00 on Saturday and as such shall be operated in a
manner so as to ensure adherence to the EPA Guidance Note For Noise In Relation To Scheduled
Activities which outlines a limit of a free-field LAr,T value of 55dB by daytime (08:00 – 22:00), at any
noise sensitive location. During night-time (22:00 – 08:00), the noise attributable to on-site activities
should not exceed a free-field LAeq, T value of 45 dB. Rigorous efforts shall be made to avoid clearly
audible tones and impulsive noise at all sensitive locations. Additional air handling fans proposed for
the facility extension are of similar design to the existing fans and are therefore not expected to produce
a tonal component.
For inspection purposes only.
Consent of copyright owner required for any other use.
The existing ambient noise levels in the area which is inclusive of the existing facility are significantly
below the daytime 55dB LAeq value, and are also significantly below the 45dB LAeq nightime value. It is
considered highly unlikely that the proposed extension would reach these levels, even in a worst-case
scenario, as this proposal consists of similar activity to that currently in place.
All of the major noise producing plant associated with the proposed development will be situated within
the purpose built buildings associated with the development. The noise sources associated with the
proposed development in the operational phase will consist of:
• Noise generated by site operations including 2 new loading shovels and 9 no. extraction fans;
and
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EPA Export 01-06-2010:03:55:59