Table 2.

Average noise levels dB(A) Measured Underground and on Surface at the Mine, 2011

Location	Noise reading 1	Noise reading 2	Noise reading 3	Average noise dB(A)
Mining underground
725 ramp booster fan	109.0	108.3	107.0	108.1
800x5pump station	100.0	99.0	102.0	100.3
815-580 DD2 Exhaust fan	104.0	102.0	108.8	104.9
815-635 x/c forces fan	96.0	97.0	95.6	96.2
815-670 x/c (Rig 22)	109	105	110	108
LHD 10 @ 800–950 slot	105	109	110.2	108.1
920 diamond drilling machine	96	99	99	98.0
South ramp 900 pump station	100	98	100.8	99.6
860 south ramp pump station	95.8	96	97	96.3
UG workshop	108.4	104.0	102	104.7
UG boiler shop	102	99	105	102.0
Workshop compressor	103	100	106	103.0
Technical services
Grader	90	94	92.4	92.1
TD 20	104	102	108	104.6
Electrical workshop	69	75	71	71.6
Underground offices	69	66	63	66
Stores	74	69	68	70.3
Lab sampling preparation room	109	105	101	105
Administration
Main offices	56	55	54	55
Civils workshop	100	102	101	101
Clinic	55	55	56	55.3
Plant processing
Plant floor	106	100	109	105
Plant sag mills	99	109	105	104.3
Plant chutes	89	93	86	89.3
CV 3A	96	95	93	94.6
Plant boiler shop	94	96	95	95
Dewatering pumps	97	98	99	98
Plant processing pumps	95	95	92	94
Tank 0	91	87	89	89
Tank 1	90	91	87	89.3
Tank 5	85	86	88	86.3
Tank 6	95	96	94	95
High security gate	85	83	88	85.3
Carbon screen	88	91	87	88.6
CIL spillage pumps	95	96	94	95
Plant compressor room	96	94	95	95
High security gate	85	83	88	85.3
Plant mechanical, electrical shop	69	73	70	70.6
Crusher pad	87	86	85	86
New tailings budge pumps	102	106	105	104.3
Crusher control room	87	86	85	86