Blasting Report 3.9.2023

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
G
MINE INFO
Permittee: Tri County Paving Customer: West Jefferson Blast#: 01-23
Mine ID: 0 Area: Third Level
Date: 3/9/2023 N: 36.405583
Time: 11:02 AM W: -81.482861
WEATHER
Condition: Partly Cloudy Wind Velocity: WSW
Temperature: 53°F Wind Direction: 2*5
CLOSEST DWELLING/STRUCTURE
N: 36.407111 Location: 300 Mt Jefferson Rd Structure Type: Dwelling
W: -81.482583 Distance: 563 ft Direction: 8° Scaled Distance: 79.7
WEIGHTS
Shot Type: Production Density: 2.300 tons/cyd
Rock Type: Granite Blast Yield: 3001 tons
Weight per Hole 21.80 Ibs Volume: 1305 cyd
Max.Holes/Delay: 2 Max Ibs per Delay 50.00 Ibs
Powder Factor: 2.26 t/lb 1.02 Ib/cyd
HOLE DATA
Total Holes: 62 Drill Diameter: 3.50 in Drill Footage: 815.00 ft
Number of Rows: 5 Min.Hole Depth: 14.00 ft Max.Hole Depth: 18.00 ft
Burden: 7.0 ft Spacing: 8.0 ft Sub Drill: 3 ft
Min.Stem Ht: 8 ft Max.Stem Ht: 10 ft Inert Deck Ht: 0 ft
Stemming Size: 1/2 in Stemming Type: Clean Crushed Stone
PRODUCTS
Detonators&Accessories Boosters
Product Quantity Product Quantity Unit Wt(lbs) Total Wt(lbs)
Maxam Dual Delay 30ft 25/500 61 (AP)Eagle 340 61 0.75 45.75
Maxam Surface Delay 20ft 42ms 9 (AP) Eagle 340
- (AP)Eagle 340
- Bulk/Packaged Product
- Product Total Wt(lbs)
- Austinite 15 500
- Hydromite 2.5x8 784
Initiation Type: Non-Electric Bulk Total: 1284.00 Ibs
Initiation Device: Shotgun Primer Booster Total: 4S.75 Ibs
Blasting Mats Used? No Total Explosives: 1329.75 Ibs
CREW/SAFETY
Safety Meeting: Yes Blaster in Charge: Shawn Sullivan
Face Inspection: Yes License#: 0
Protective Cover: Loader Bucket Contact: [e-mail]
Blast Crew: Shawn Sullivan [phone]
Robert Hunt -
- Signature:
Tri County 01-23

BLAST REPORT " _- 4570 Frye Bridge Rd
Clemmons, NC 27012
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SEISMOGRAPH 1
Serial#: 2262 Manufacturer&Model: WE Dist.&Dir.via GPS
N: 36.40725 Location: 303 Wade E Vannoy Rd Direction: 39'
W: -81.481194 Description: Dwelling Scaled Dist: 110.4
Comments: Operator/Firm: VCE
Transverse: Vertical: Longitudal: Acoustic: Distance:
0.090 in/s 0.095 in/s 0.120 in/s 112.00 dB 781 ft
39.30 Hz 64.00 Hz 36.50 Hz
SEISMOGRAPH 2
Serial#: 3203 Manufacturer&Model: WE Dist.&Dir.via GPS
N: 36.407111 Location: 300 Mt Jefferson Rd Direction: 8°
W: -81.482583 Description: Dwelling Scaled Dist: 79.7
Comments: Operator/Firm: VCE
Transverse: Vertical: Longitudal: Acoustic: Distance:
0.320 in/s 0.295 in/s 0.135 in/s 114.00 dB 563 ft
56.80 Hz 46.50 Hz 73.10 Hz
SEISMOGRAPH 3
Serial#: N/A Manufacturer&Model: N/A Dist.&Dir.via GPS
N: N/A Location: N/A Direction: N/A
W: -N/A Description: N/A Scaled Dist: N/A
Comments: No Seismograph Set Up Operator/Firm: N/A
SEISMOGRAPH 4
Serial#: N/A Manufacturer&Model: N/A Dist.&Dir.via GPS
N: N/A Location: N/A Direction: N/A
W: -N/A Description: N/A Scaled Dist: N/A
Comments: No Seismograph Set Up Operator/Firm: N/A
SEISMOGRAPH 5
Serial#: N/A Manufacturer&Model: N/A Dist.&Dir,via GPS
N: N/A Location: N/A Direction: N/A
W: -N/A Description: N/A Scaled Dist: N/A
Comments: No Seismograph Set Up Operator/Firm: N/A
COMMENTS
0
Tri County 01-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
541;mG=aSLX0 C
BILLING
Explosive Delivery: Less than 16,000lbs Low Volume Surcharge: Yes
Toe Holes: 0 Profile/Photogrammetry: 0
Decked Holes: 0 BoreTracking: 0
Unplanned Trips: 0 VOD Analysis: 0
Tri County 01-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
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Unique Hole Parameters
Tri County 01-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
Detailed Hole Loading Chart
Customer: Tri County Paving Location: West Jefferson
Hole# Depth(ft) Stemming(ft) Total Explosives(lbs)
1 Generic Hole Diagram
2
3
4
5 Type: 1/2 in
6 Stemming Min: 8 ft
7 Max: 10 ft
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
Sub-drill: 3 ft
47
48
49
50
Tri County 01-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
Detailed Hole Loading Chart
Customer: Tri County Paving Location: West Jefferson
Hole# Depth(ft) Stemming(ft) Total Explosives(lbs)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Tri County 01-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
Detailed Hole Loading Chart
Customer: Tri County Paving Location: West Jefferson
Hole# Depth(ft) Stemming(ft) Total Explosives(lbs)
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
Tri County 01-23

N Q S File:2262202303091103002.dtb
Number:002
Tri County Paving Date and Time:3/9/2023 11:03:00 AM
303 Wade E. Vannoy Rd. West Jefferson NC 5N in/sec
262
, r Seismic Trigger:0.0500 in/sec
792 I l Air Trigger:142 dBL
#
Sample Rate:1024
Mostly Sunny, 53 degrees, WSW 2-5 Duration:2 Seconds
W JC Pre-Trigger:0.5 Second
Seismic Range:2.50 in/s
Acoustic Range:142 dBL
Gain:2.Ox
Voltage:6.40
Peaks and Frequencies Graph Information
PPV Maximum:0.120 in/sec(0.2656 sec) Duration:-0.500 s To:2.000 s
Acoustic: 112 dBL @ 6.6 Hz(0.7578 sec) Acoustic Scale:126 dBL
Radial:0.120 in/sec @ 36.5 Hz(0.2656 sec) Seismic Scale:0.200 in/sec(0.0500 in/sec/div)
Vertical:0.0950 in/sec @ 64.0 Hz(0.1582 sec) Time Intervals:0.50 sec
Transverse:0.0900 in/sec @ 39.3 Hz(0.2021 sec)
Last Calibration Date: 1/16/2023
Cal 1.00 OK
.....................................................................................................................................................................................................................................................................................................
Cal 0.465 OK
..............................................................................................................................................................................................................................................................................................................
Cal 0.470 OK
.................................................................................................................................................................................................................................................................................................................
Cal 0.470 OK
T
.0.50 0.00 0.50 1.00 1.50 2.00
Fast Fourier Transform-Amplitude Spectrum
FFT Peak Frequencies FFT Graph Information
Acoustic:1.50 Hz(Amp=14.58) Range:1 to 100 Hz
Radial:47.25 Hz(Amp=7.08) Acoustic Scale: 14.58
Vertical:34.75 Hz(Amp=5.37) Seismic Scale:7.08
Transverse:22.25 Hz(Amp=4.39)
cous c a is e vertical a ransverse e
1.50 Hz 14.6 47.25 Hz 7.08) 34.75 Hz(5.37) 22.25 Hz(4.39)
1 10 100 1 10 100 1 10 100 1 10 100
Frequency(Hz)
White Seismograph Data Analysis V11-Version 11.1.0.104

N QS File:3203202303091102004.dtb
�+ Number:004
Tri County Paving Date and Time:3/9/2023 11:02:00 AM
3203
300 Mt. Jefferson Rd., West Jefferson, NC SN:Seismic Trigger:0.0500 in/sec
581 ft Air Trigger:142 dBL
Sample Rate:1024
Mostly Sunny, 53 degrees, WSW 2-5 Duration:2 Seconds
W JC Pre-Trigger:0.5 Second
Seismic Range:2.50 in/s
Acoustic Range: 142 dBL
Gain:2.0x
Voltage:6.40
Peaks and Frequencies Graph Information
PPV Maximum:0.320 in/sec(0.2695 sec) Duration:-0.500 s To:2.000 s
Acoustic:114 dBL @ 5.7 Hz(0.6904 sec) Acoustic Scale:126 dBL
Radial:0.135 in/sec @ 73.1 Hz(0.3652 sec) Seismic Scale:0.400 in/sec(0.100 in/sec/div)
Vertical:0.295 in/sec @ 46.5 Hz(0.3223 sec) Time Intervals:0.50 sec
Transverse:0.320 in/sec @ 56.8 Hz(0.2695 sec)
Last Calibration Date: 1/16/2023
Cal 1.04 OK
....................................................................................................................................................................................................................................................................................................................
Cal 0.490 OK
Cal 0.490 OK
........................................................................................................................................................._....................................................,....._......................._,...................
........................,...,.......
Cal 0.480 OK
T
-0.50 0.00 0.50 1.00 1.50 2.00
Fast Fourier Transform-Amplitude Spectrum
FFT Peak Frequencies FFT Graph Information
Acoustic: 1.50 Hz(Amp=16.96) Range:1 to 100 Hz
Radial:43.75 Hz(Amp=7.55) Acoustic Scale: 16.96
Vertical:47.00 Hz(Amp=22.35) Seismic Scale:22.35
Transverse:47.00 Hz(Amp=15.15)
cons is ROM e vertical a ransverse e
1.50 Hz 17.0 43.75 Hz 7.55) 47.00 Hz 22.3 47.00 Hz 15,2)
1 1D 100 1 10 100 1 10 100 '1 10 100
Frequency(Hz)
White Seismograph Data Analysis V11-Version 11A.0.104