**Document:** Noise Investigation Report Mandarin Takeaway **Application:** 06/00132/R — Retrospective application for the installation of a flue on roof of **Decision:** Refused **Decision Date:** 2006-08-14 **Parish:** Rushen **Document Type:** report / planning_statement **Source:** https://planningportal.im/a/80040-rushen-mandarin-chinese-takeaway-installation-roof/documents/1462557 --- # Noise Investigation Report Mandarin Takeaway ## Noise Investigation Report January 2006 ## Mechanical Ventilation System @ The Mandarin Takeaway, 26 Church Road, Port Erin ![A black and white photograph showing a large metal flue pipe lying on the ground in the foreground with a building and hills in the background.](https://images.planningportal.im/2006/01/550368.jpg) For: Planning By: Environmental Protection Unit Prepared by: Simon Renton MSc, AMIOA Environmental Protection Officer Environmental Protection Unit Department of Local Government & the Environment Murray House Mount Havelock Douglas Tel: (01624) 685892 Issue: 1 Issue Date: 27 February, 2006 0. Index [Table omitted in markdown export] ## 1. Summary ![data table or chart from page 3](https://images.planningportal.im/2006/01/550369.jpg) ### 1.1 Rowdy Behaviour During the period 13 Jan 06 – 31 Jan 06 the residents of Northview were able to produce records and monitoring (from a Matron tape recording system provided to them by the EPU) of only two incidents of alleged noise nuisance from rowdy behaviour lasting for less than 5 minutes each. Although maximum noise levels were sufficiently loud to cause sleep disturbance the frequency and duration of these events are insufficient for the EPU to consider this noise as likely to constitute a statutory noise nuisance from this evidence. ### 1.2 Fan Noise The residents of Northview did not indicate on their record sheets that noise from the fans continued to be a nuisance to them and indeed analysis of noise monitoring indicates that the level of noise from the fan was below the EPU's recommended noise limit criteria. Chart 1 – Northview Internal Noise Measurements Frequency 1/3 Octaves & Broadband A-weighted NLC – recommended Noise Limit Criteria To prevent noise nuisance from low frequency noise the following criteria are recommended in accordance with research recently commissioned by DEFRA in the UK: ### 2. Recommendations If it were determined that planning permission was required the following condition is recommended with the objectives: i. Broadband noise from the ventilation system is no louder than the existing background noise levels. ii. Any audible low frequency tonal noise is below the low frequency noise disturbance criteria as currently proposed by the Department of Environment, Food and Rural Affairs (DEFRA). ### Recommended Noise Conditions 1. The broadband level of the noise emitted from the mechanical ventilation system at the Mandarin Takeaway shall not exceed LAeq, 1 hour - 30 dB daytime (0700 - 2300) and LAeq, 5 minute - 25 dB night-time (2300 - 0700). This shall be measured inside any adjacent residential premises. 2. Low frequency audible tonal noise emitted from the mechanical ventilation system at the Mandarin Takeaway shall not exceed the following criteria measured inside any adjacent residential premises: #### 2.1 Between the hours of 2300 - 0700 hrs measured as 1/3 octave Lleq, 5 min² [Table omitted in markdown export] #### 2.2 Between the hours of 0700 - 2300 hrs measured as 1/3 octave Lleq, 1 hour² [Table omitted in markdown export] 5 ## 3. Instrumentation [Table omitted in markdown export] There was no significant drift (less than 0.1 dB) in the calibration tone between the beginning and end of DAT tape recording. [Table omitted in markdown export] CAF – Accredited Calibration 20 September 2005 The sound level meter complies with the IEC 1672 Class 1 standard. [Table omitted in markdown export] There was no significant drift in calibration before and after noise measurements were taken. ## 4. Noise Monitoring Results [Table omitted in markdown export] ![data table or chart from page 7](https://images.planningportal.im/2006/01/550358.jpg) ### 4.1 Rowdy Behaviour Chart 2 - Inside Northview 21 January 2006 Chart 3 - Inside Northview 22 January 2006 [Table omitted in markdown export] ![data table or chart from page 8](https://images.planningportal.im/2006/01/550359.jpg) ### 4.2 Fan Noise [Table omitted in markdown export] ![data table or chart from page 9](https://images.planningportal.im/2006/01/550361.jpg) Chart 4 - Time History of Measurements inside Northview 16 September 2005 Chart 5 - Time History of Measurements inside Northview 21 February 2006 ![data table or chart from page 9](https://images.planningportal.im/2006/01/550360.jpg) Chart 6 - Time History of Measurements inside Northview 22 February 2006 N.B. 25 dB Background Noise + 25 dB Fan Noise = 28 dB Total 38.3 dB - 19.1 dB A-weighted correction @ 100 Hz 1/3 Octave = 19.2 dB(A) Hence noise from fan is less than 25 dB(A) Broadband. ## 5. References 1. Noise Investigation Report 21 September 05 by Simon Renton EPU. [Table omitted in markdown export] ![data table or chart from page 10](https://images.planningportal.im/2006/01/550346.jpg) ## Department Of Local Government And The Environment [Table omitted in markdown export] ### Environment, Safety And Health Directorate #### Noise Investigation Diary Sheet **ADDRESS OF YOUR PREMISES:** *North View* *Church Hall Post Eau* **NAME OF OCCUPIER:** ## Appendix 2 - B&K Measurement Data 21 & 22 Feb 06 ![data table or chart from page 12](https://images.planningportal.im/2006/01/550348.jpg) 21/01/06 - B&K 2238 Leq 5 minute Data ![data table or chart from page 12](https://images.planningportal.im/2006/01/550347.jpg) 22/01/06 - B&K 2238 Leq 5 minute Data --- *Data sourced from the Isle of Man public planning register under the [Isle of Man Open Government Licence](https://www.gov.im/about-this-site/open-government-licence/).* *Canonical page: https://planningportal.im/a/80040-rushen-mandarin-chinese-takeaway-installation-roof/documents/1462557*