Behrens and Associates, Inc.
Environmental Noise Control
Bull Hill Mine Tabulated Data Locations 5-8
Attachment 21
Time
Leq
Fri 5-Oct
45
1:00 AM
36.2
2:00 AM
36.5
3:00 AM
37.6
4:00 AM
33
5:00 AM
37.4
6:00 AM
31
7:00 AM
30.1
8:00 AM
33
9:00 AM
25.3
10:00 AM
25.4
11:00 AM
26.6
12:00 PM
23.3
1:00 PM
23.2
2:00 PM
24.2
3:00 PM
36.8
4:00 PM
27.9
5:00 PM
20.4
6:00 PM
33.8
7:00 PM
25.6
8:00 PM
23.1
9:00 PM
43.7
10:00 PM
26
11:00 PM
24
24- Hour Average: 35.8 dBA
Bull Hill Mine, Location 5
Friday, October 5, 2012
Time
Leq
Thu 4-Oct
44.4
1:00 AM
37.9
2:00 AM
31.7
3:00 AM
29.5
4:00 AM
26.6
5:00 AM
28.2
6:00 AM
23.2
7:00 AM
22.2
8:00 AM
24
9:00 AM
22.2
10:00 AM
31.3
11:00 AM
40.5
12:00 PM
30.5
1:00 PM
32.3
2:00 PM
22.8
3:00 PM
35.7
4:00 PM
27.3
5:00 PM
23.2
6:00 PM
36.4
7:00 PM
24.6
8:00 PM
21.5
9:00 PM
43.1
10:00 PM
22.9
11:00 PM
21.3
24- Hour Average: 35.4 dBA
Bull Hill Mine, Location 6
Thursday, October 4, 2012
Time
Leq
Thu 4-Oct
36.6
1:00 AM
31.5
2:00 AM
22.6
3:00 AM
23.6
4:00 AM
22.2
5:00 AM
21.3
6:00 AM
40.8
7:00 AM
34.4
8:00 AM
53
9:00 AM
41.6
10:00 AM
53.1
11:00 AM
50.6
12:00 PM
35.1
1:00 PM
51
2:00 PM
48.6
3:00 PM
46.2
4:00 PM
42
5:00 PM
25.4
6:00 PM
37.1
7:00 PM
45.8
8:00 PM
43.6
9:00 PM
44.3
10:00 PM
28.8
11:00 PM
43.4
24- Hour Average: 45.9 dBA
Bull Hill Mine, Location 7
Thursday, October 4, 2012
Time
Leq
Thu 4-Oct
50.3
1:00 AM
39.5
2:00 AM
53.6
3:00 AM
55.5
4:00 AM
51.9
5:00 AM
49.8
6:00 AM
52.4
7:00 AM
52.8
8:00 AM
52
9:00 AM
54.5
10:00 AM
52.2
11:00 AM
49.5
12:00 PM
48.3
1:00 PM
45.2
2:00 PM
42.1
3:00 PM
44.1
4:00 PM
44
5:00 PM
54.9
6:00 PM
56
7:00 PM
51.9
8:00 PM
51.4
9:00 PM
52.4
10:00 PM
52.8
11:00 PM
55.2
24- Hour Average: 52.1 dBA
Bull Hill Mine, Location 8
Thursday, October 4, 2012
