environmental impact statement kilmainhamwood compost facility ...

environmental impact statement kilmainhamwood compost facility ... environmental impact statement kilmainhamwood compost facility ...

28.12.2012 Views

5361- Kilmainhamwood Compost Facility Extension- EIS Similarly the operation of the facility runs on a 24hr basis and there is no corresponding elevation in the night time noise for the same period. As such it can be considered that the once off, elevated noise levels measured in September 2008 are derived from off-site sources, and would not constitute a depiction of the noise emissions from the site. Figure 10.2 Day and night time LA90 values from 2008 and 2009 Annual Environmental Reports 45 40 35 30 25 19th July 06 21st December 06 13th April 07 30th July 07 10.3 PREDICTED IMPACTS 29th October 07 Day and night LA90 Dec-07 Jan-08 Apr-08 Day L90 Night L90 The potential noise and vibration impacts associated with the proposed extension to the Kilmainhamwood Compost facility are divided between the construction and operational phases of the development. 10.3.1 Construction Phase Sep-08 For inspection purposes only. Consent of copyright owner required for any other use. The construction phase of the development has potential to increase noise levels at noise sensitive locations surrounding the development site. The nearest noise sensitive locations are situated at distances of a minimum of 400m from the existing facility and proposed extensions. Impact from the construction phase will depend on the number and type of equipment used during the construction of the facility extensions. Construction noise sources will result in a temporary impact on Feb-09 Jun-09 Sep-09 Dec-09 151 EPA Export 01-06-2010:03:55:59

5361- Kilmainhamwood Compost Facility Extension- EIS the noise climate in the area. The construction phase should not give rise to excessive noise levels. During the construction phase, there will be minimal noise impact from trucks (involved in construction activities) entering and exiting the site as the increase in road haulage numbers due to the proposed construction activities will be limited. Construction noise levels are outlined in Table 10.3. Table 10.3 Construction Phase Noise Levels BS5228 Calculations Estimated Construction noise levels at varying distances LAeq 1 hour Plant Receptor 1 Receptor 2 Receptor 3 Receptor 4 388m 403m 412m 730m Dozer 20 20 20 13 Dumper truck 10 10 10 3 Cement Lorry 11 11 11 4 Telescopic handler 13 13 13 6 Tracked Excavator 47 47 47 40 Tracked mobile crane 29 29 29 22 Combined Level LAeq 1hour 47dB 47dB 47dB 40dB Predicted noise levels have been estimated using the methodology described in BS: 5228: Noise and control on construction and open sites, 1997. Predictions are based on typical equipment used during various constructive stages of the development. Predictions are based on a LAeq1hour value with all machinery listed in Table 10.3 operating for a continual period of 1 hour. This may be considered a worst-case scenario as machinery may operate for shorter periods and may not work simultaneously. Additionally, calculations are based on minimum distances between site activities and the nearest noise sensitive locations. For inspection purposes only. Consent of copyright owner required for any other use. In Ireland, there are no statutory guidelines relating to noise limits for construction activities. These are generally controlled by local authorities and commonly refer to limiting working hours to prevent a noise nuisance. The National Roads Authority (NRA) report entitled ‘Guidelines for the treatment of noise and vibration in national road schemes’ 2004, has outlined recommended noise levels for construction noise during road works. Although these refer to road projects, they have been developed in line with typical construction noise limits on general construction projects used previously in Ireland. The limits outlined represent a reasonable compromise between the practical limitations during a construction project and the need to ensure an acceptable ambient noise level for local residents. As a result, these limits have become the most acceptable standard for construction noise limits for EIS assessments to date. The authority does note however that where pre-existing noise levels are particularly low, more stringent levels may be more appropriate. Table 10.4 below details these recommended limits. 152 EPA Export 01-06-2010:03:55:59

5361- Kilmainhamwood Compost Facility Extension- EIS<br />

the noise climate in the area. The construction phase should not give rise to excessive noise levels.<br />

During the construction phase, there will be minimal noise <strong>impact</strong> from trucks (involved in construction<br />

activities) entering and exiting the site as the increase in road haulage numbers due to the proposed<br />

construction activities will be limited. Construction noise levels are outlined in Table 10.3.<br />

Table 10.3 Construction Phase Noise Levels<br />

BS5228 Calculations Estimated Construction noise levels at varying distances LAeq 1 hour<br />

Plant<br />

Receptor 1 Receptor 2 Receptor 3 Receptor 4<br />

388m 403m 412m 730m<br />

Dozer 20 20 20 13<br />

Dumper truck 10 10 10 3<br />

Cement Lorry 11 11 11 4<br />

Telescopic handler 13 13 13 6<br />

Tracked Excavator 47 47 47 40<br />

Tracked mobile crane 29 29 29 22<br />

Combined Level LAeq 1hour 47dB 47dB 47dB 40dB<br />

Predicted noise levels have been estimated using the methodology described in BS: 5228: Noise and<br />

control on construction and open sites, 1997. Predictions are based on typical equipment used during<br />

various constructive stages of the development. Predictions are based on a LAeq1hour value with all<br />

machinery listed in Table 10.3 operating for a continual period of 1 hour. This may be considered a<br />

worst-case scenario as machinery may operate for shorter periods and may not work simultaneously.<br />

Additionally, calculations are based on minimum distances between site activities and the nearest noise<br />

sensitive locations.<br />

For inspection purposes only.<br />

Consent of copyright owner required for any other use.<br />

In Ireland, there are no statutory guidelines relating to noise limits for construction activities. These are<br />

generally controlled by local authorities and commonly refer to limiting working hours to prevent a noise<br />

nuisance. The National Roads Authority (NRA) report entitled ‘Guidelines for the treatment of noise and<br />

vibration in national road schemes’ 2004, has outlined recommended noise levels for construction noise<br />

during road works. Although these refer to road projects, they have been developed in line with typical<br />

construction noise limits on general construction projects used previously in Ireland.<br />

The limits outlined represent a reasonable compromise between the practical limitations during a<br />

construction project and the need to ensure an acceptable ambient noise level for local residents. As a<br />

result, these limits have become the most acceptable standard for construction noise limits for EIS<br />

assessments to date. The authority does note however that where pre-existing noise levels are<br />

particularly low, more stringent levels may be more appropriate. Table 10.4 below details these<br />

recommended limits.<br />

152<br />

EPA Export 01-06-2010:03:55:59

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