Technical Memorandum on Noise from Percussive Piling

Table 1 - Acceptable Noise Levels (ANLs)

NSR Window Type or Means of Ventilation ANL (dB(A))
(i) NSR (or part of NSR) with no windows or other openings 100
(ii) NSR with central air conditioning system 90
(iii) NSR with windows or other openings but without central air conditioning system 85

10 dB(A) shall be subtracted from the ANLs shown above for NSRs which are hospitals, medical clinics, educational institutions, courts of law or other NSRs which are considered by the Authority to be particularly sensitive to noise.

 

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