01_29_21 Blast report

AUSTIN POWDER COMPANY and Subsidiaries
AUSTIN POWDER COMPANY BLAST REPORT
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Blast No.: 5
Date/Time: 01/29/2021 12:27
AP Raleigh, NC
399 Three Sisters Road, Knightdale, NC 27545
Blast Type: Stone Quarry/Stone Mine - Production
Pit/Permit: MARTIN MARIETTA-LEMON SPRINGS /
1NCO0788
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Permittee: MARTIN MARIETTA
Customer: MARTIN MARIETTA-LEMON
SPRINGS
(271466-001)
Location: 5TH BENCH ELEV 109
ENVIRONMENT
Method Used: Lat./Long. Weather: Clear Wind From: NW
Temperature: 40 °F Terrain: Hilly Wind Velocity: 5-10 M/h
Blast Lat./Long.: 35° 24' 33.844" N 79° 11' 56.265" W
NEAREST PROTECTED STRUCTURE Compass Point: ENE
Structure Name: 2356 MINTER SCH RD Direction/Bearing: 64 °
Structure Type: Dwelling Distance: 1710 ft
Structure Lat./Long.: 35° 24' 41.090" N 79° 11' 37.600" W
LAYOUT
Hole Depth:
74.0-80.0 ft Material Blasted: Granite Total Drilling Footage:
2,554.0 ft
No. of Holes:
32 Subdrilling:
4.0 ft Burden:
15.0 ft
Water Depth:
max 35.0 ft
t
No. of V.P. Holes:
32 Face Height:
70.0-76.0 ft Spacing:
20.0 ft
Stem Length:
min 16.0 ft
No. of Rows:
3 Drilling Angle:
0-20 Back Fill Depth:
0.0 ft
Area Type:
Conventional
Diameter:
6.5 in Mats Used:
No Stem Type: 57
Method:
Specified
t V.P. = Volume Producing
(H = 70.0 ft)
WEIGHTS
Max. Wt. of Expl. in Overlapped Decks:
1,457.6 lb
Volume Produced:
24,888.9 yd3
Initiation:
Electronic
Max. Wt. of Expl. Per 8 ms Interval:
1,457.6 lb
Weight Produced:
57,991.1 t
Firing Device:
E*Star Blasting
Max. No. of Holes Per 8 ms Interval:
2
Powder Factor 1:
2.156 t/lb
Machine (WRFD)
Other Method:
Max. Wt. of Explosive Per Hole:
1,013.2 lb
Powder Factor 2:
1.081 Ib/yd3
Mfg and Model:
DanMarCo
Max. Allow. Chg. Wt. per 8 ms w/o Seis.:
1,169.6 lb
Rock Density:
2.330 t/yd3
Initiation Settings:
Actual Scaled Distance Factor:
44.79
Scaled Distance Factor Used: D/Wl/2=50
Series Resistance (ohms):
SEISMOGRAPH 1 - 2356 MINTER SCIL RD.
Data Type:
Seismic Record Seismograph Type:
MINIMATE PLUS
Date:
01/29/21 Trigger Level:
--- in/s --- dB
Transverse:
0.052 in/s
13.0 Hz
Time:
12:27 Calibration Date:
12/24/20
Vertical:
0.054 in/s
20.0 Hz
Distance From Blast:
1,710.00ft Calibration Signal:
Longitudinal:
0.051 in/s
30.0 Hz
Direction From Blast:
ENE Geophone Min. Freq.:
--- Hz
Readout:
Mic. Min. Freq.:
--- Hz
Acoustic:
132 dB
--- Hz
Location:
Vector Sum:
--- in/s
Lat./Long.:
35° 24' 41.090" N
79° 11' 37.600" W
Reader and Firm:
Matthew Painter, Austin Powder co
Analyst and Firm:
Deep Earth
Installer and Firm:
Kyle Gates
Page 1 of 6 Blast ID: ru00749702-10645 (10643) Version: 7.8.6.1 Print Date: 2/1/2021

AUSTIN POWDER COMPANY and Subsidiaries
AUSTIN POWDER COMPANY BLAST REPORT
.¢ ,
F�FR G
Blast No.: 5
Date/Time: 01/29/2021 12:27
CREW
AP Raleigh, NC
399 Three Sisters Road, Knightdale, NC 27545
Blast Type: Stone Quarry/Stone Mine - Production
Pit/Permit: MARTIN MARIETTA-LEMON SPRINGS /
1NCO0788
.¢ ,
F�FR G
Permittee: MARTIN MARIETTA
Customer: MARTIN MARIETTA-LEMON
SPRINGS
(271466-001)
Location: 5TH BENCH ELEV 109
Blast occurred other than scheduled time: No
Misfire Occurred: No Protective Cover: blast house
Last Name
First Name License / Cert
2nd License / Cert In Charge Tied In Chk. Tie -In
Driller Layout
PAINTER
MATTHEW * NC - N/A
Yes Yes Yes
No Yes
,S
CHEEK
WILLIAM,
No Yes No
No No
D
HAYES
JEFFREY
No Yes No
No No
POWELL
CHARLES,
No Yes No
No No
A
PRODUCTS AND SERVICES
Number
Product Description
Quantity
Weight (lb)
15107
Eagle 450 E*Star Booster
64.00 ea
64.00
15032
100' E*STAR Detonator - QM/HD
40.00 ea
0.00
15002
30' E*STAR Detonator - QM
24.00 ea
0.00
15161
E*Star Duplex HDPE Bus Wire - 1312'
1.00 sp
0.00
12531
Empty-WPP Shot Bag 5 x 48 - Plain.
4.00 ea
0.00
13817
Hydromite 4100S Bulk
27,336.00 lb
27,336.00
* Hydromite 4100S Bulk-5.0"x48.0"
4.00 ST
* 160.80
A0005
**Basic Blasting Service**
1.00 ea
0.00
A0021
Blast Service-Fld Mfg Unit+Operator
1.00 ea
0.00
A0385
Delivery Service --Level D
1.00 ea
0.00
A0625
Other -Remote Firing Device Charge
1.00 ea
0.00
Total Weight of Explosives (Include Primers) ( lb ):
27,400.00
* Bagged product's weight is included in the total for the bulk product. It is shown here as a supporting detail.
COMMENTS /EXPLANATIONS
General Comments:
Shot had excessive burden caused by a slip. Had discussed concerns about the heavy burden Tuesday not
knowing what the outcome would be but understanding there was no other means to handle the slip safely than
to try to shoot it down.
Signature of Blaster in Charge
Page 2 of 6 Blast ID: ru00749702-10645 (10643) Version: 7.8.6.1 Print Date: 2/1/2021