Blasting Report 6.5.2023

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
40R1tuNG A-B;nN6
MINE INFO
Permittee: Tri County Paving Customer: West Jefferson Blast#: 02-23
Mine ID: 0 Area: Third Level
Date: 6/5/2023 N: 36.405583
Time: 10:28 AM W: -81.482861
WEATHER
Condition: Partly Cloudy Wind Velocity: NW
Temperature: 67°F Wind Direction: 4*8
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: 3148 tons
Weight per Hole 21.30 Ibs Volume: 1369 cyd
Max.Holes/Delay: 2 Max Ibs per Delay 50.00 Ibs
Powder Factor: 2.95 t/lb 0.78 Ib/cyd
HOLE DATA
Total Holes: 55 Drill Diameter: 3.50 in Drill Footage: 825.00 ft
Number of Rows: 6 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: loft Inert Deck Ht: Oft
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 50 (AP)Eagle 340 50 0.75 37.50
Maxam Surface Delay 20ft 42ms 10 (AP)Eagle 340
- (AP)Eagle 340
- Bulk/Packaged Product
- Product Total Wt(lbs)
- Austinite 15 500
- Hydromite 2.5x8 528
Initiation Type: Non-Electric Bulk Total: 1028.00 Ibs
Initiation Device: Shotgun Primer Booster Total: 37.50 Ibs
Blasting Mats Used? No Total Explosives: 1065.50 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]
Daneil Silvers Carlos Villenueva
Danna Rodriguez -
- - Signature:
Tri County 02-23

BLAST REPORT - 4570 Frye Bridge Rd
Clemmons, NC 27012
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SEISMOGRAPH 1
Serial#: 2438 Manufacturer&Model: VCE 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: Lonsitudal: Acoustic: Distance:
0.080 in/s 0.075 in/s 0.115 in/s 112.00 dB 781 ft
46.50 Hz 64.00 Hz 42.60 Hz
SEISMOGRAPH 2
Serial#: 2262 Manufacturer&Model: VCE 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:
0.070 in/s 0.100 in/s 0.090 in/s 112.00 dB 563 ft
5.20 Hz 64.00 Hz 46.50 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 02-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
W���NG 4 BI.A`�,rNb
BILLING
Explosive Delivery: Less than 16,0001bs Low Volume Surcharge: Yes
Toe Holes: 0 Profile/Photogrammetry: 0
Decked Holes: 0 BoreTracking: 0
Unplanned Trips: 0 VOD Analysis: 0
Tri County 02-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
Unique Hole Parameters
EmGel Packaged Explosives
0
Ib Booster
ANFO
Ib Booster==MM* 0
Tri County 02-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
fNG s BLAB
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 02-23

BLAST REPORT 4570 Frye Bridge Rd
Clemmons, NC 27012
SUNG&sLAS
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 02-23

BLAST REPORT 4570 Frye Bridge Rd
1 Clemmons, NC 27012
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Detailed Hole Loading Chart
Customer: TO 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 02-23

N QS File:2262202306051028045.dtb
Number:045
Tri County Paving Date and Time:6/5/2023 10:28:00 AM
300 Mt. Jefferson Rd., West Jefferson NC SN:2262
' Seismic Trigger:0.0500 in/sec
517 'L�a Air Trigger:142 dBL
Partl Cloud 67 de rees NW 4-8 Sample Rate: 1024
y y' g , Duration:2 Seconds
wi c Pre-Trigger:0.5 Second
Seismic Range:2.50 in/s
Acoustic Range:142 dBL
Gain:2.Ox
Peaks and Frequencies Graph Information Voltage;6.30
PPV Maximum:0.100 in/sec(0.4033 sec) Duration:-0.500 s To:2.000 s
Acoustic:112 dBL @ 9.4 Hz(0.4658 sec) Acoustic Scale:126 dBL
Radial:0.0900 in/sec @ 46.5 Hz(0.4346 sec) Seismic Scale:0.200 in/sec(0.0500 in/sec/div)
Vertical:0.100 in/sec @ 64.0 Hz(0.4033 sec) Time Intervals:0.50 sec
Transverse:0.0700 in/sec @ 51.2 Hz(0.4072 sec)
Last Calibration Date:1/16/2023
Cal 1.00 OK
........................................................................................................................................................................................................................................................................................
Cal 0.490 OK
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,_..............
Cal 0.485 OK
..........................................................................................................................................................................................................................,.._.......,..........................._.....................
Cal 0.490 OK
T
-0.50 0.00 0.50 1.00 1.50 2A0
Fast Fourier Transform-Amplitude Spectrum
FFT Peak Frequencies FFT Graph Information
Acoustic:3.75 Hz(Amp=14.65) Range:1 to 100 Hz
Radial:44.50 Hz(Amp=9.05) Acoustic Scale: 14.65
Vertical:58.00 Hz(Amp=4.33) Seismic Scale:9.05
Transverse:44.75 Hz(Amp=4.60)
cous is a is e e ica a sverse e ran
3.75 Hz(14.6) 44.50 Hz(9.05) 58.00 Hz(4.33) 44.75 Hz(4.60
1 10 100 1 10 100 1 10 100 1 10 100
Frequency(Hz)
White Seismograph Data Analysis VI-Version 11.1.0.104

N QSi File:2438202306051028003.dtb
Number:003
Tri County Paving Date and Time:6/5/2023 10:28:00 AM
303 Wade E Vannoy Rd., West Jefferson NC SN:2438
Seismic Trigger:0.0500 in/sec
739 ft Air Trigger:142 dBL
Partly Cloud 67 de rees NW 4-8 Sample Rate:1024
Seconds
�, g � Duration:2 Seconds
WJC Pre-Trigger:0.5 Second
Seismic Range:2.50 in/s
Acoustic Range:142 dBL
Gain:2.Ox
Peaks and Frequencies Graph Information Voltage:6.60
PPV Maximum:0.115 in/sec(0.5078 sec) Duration:-0.500 s To:2.000 s
Acoustic:112 dBL @ 10.4 Hz(0.6133 sec) Acoustic Scale:126 dBL
Radial:0.115 in/sec @ 42.6 Hz(0.5078 sec) Seismic Scale:0.200 in/sec(0.0500 in/sec/div)
Vertical:0.0750 in/sec @ 64.0 Hz(0.4580 sec) Time Intervals:0.50 sec
Transverse:0.0800 in/sec @ 46.5 Hz(0.5322 sec)
Last Calibration Date:4/6/2023
Cal 0.96 OK
k
..................................................................................................................................................................................................................................................................................................................
Cal 0.490 OK
.................................................................................................................................................................................................................................................................................................................
Cal 0.495 OK
........................................................................-.........................................................................................................................................................................................................................
...
Cal 0.515 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:3.75 Hz(Amp=16.34) Range: 1 to 100 Hz
Radial:29,25 Hz(Amp=7.18) Acoustic Scale: 16.34
Vertical:37.50 Hz(Amp=5.08) Seismic Scale:7.18
Transverse:57.75 Hz(Amp=6,43)
cons is a is a er rca a ansverse e
3.75 Hz(16.3) 29.25 Hz(7.18) 37.50 Hz(5.08) 57.75 Hz 6.43)
)1 .11 L--J' . ,k' "I Lj k
1 10 100 1 10 100 1 10 100 1 10 100
Frequency(Hz)
White Seismograph Data Analysis V11 -Version 11.1.0.104