Assessment of noise present in the drilling is consistent with the measurement volume during the drilling of holes L53-G area L53G-N3 between 29 March - 1 April 2556 found that 24-hour average sound level (Leq 24 hrs), with values ranging from 57.4 to 58.5 dB (A) and maximum sound level (Lmax) is in the range of 67.6 to 95.7 dB (A) results. Monitoring the volume in the exploration drilling operations L53-G found that the in-class audio. The Board of Directors of National Environment 15 (2540) defined up to 70 and 115 dB (A), respectively, thus confirming that the activity during drilling will not make a sound. in excess of the standard
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