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2023-10-03_REVISION - M1977344 (5)
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2023-10-03_REVISION - M1977344 (5)
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Entry Properties
Last modified
10/5/2023 8:56:09 AM
Creation date
10/4/2023 10:37:43 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977344
IBM Index Class Name
Revision
Doc Date
10/3/2023
Doc Name Note
App 4.1 Blasting Plan
Doc Name
Request For Amendment To Permit
From
Holcim (US) Inc.
To
DRMS
Type & Sequence
AM2
Email Name
TC1
MAC
Media Type
D
Archive
No
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5.6.3 Type and amount of stemming material <br />The material used for stemming is a screening rock; the amount per hole is 0.085 tons by 11.2 ft. of the <br />hole and the size of the stemming Dh/20, approx. 0.2750 inch. <br /> <br />5.6.4 Blasting agent and amount per hole <br />The explosive agent used is Bulk ANFO and a Blended ANFO + Slurry. The use of ANFO or Blend is dictated by <br />the presence of wet holes. The amount of blasting agent used per hole is estimated at 305 lb (Fort Hays and <br />Translime), and 334 lb (Smokey Hill and Golden Shale) <br /> <br />5.6.5 Type of delay detonator and delay periods expected <br />The quarry operation will utilize an Electronic detonating System; currently, the Bear Creek Quarry uses <br />an electronic detonating system. The planned delay per hole is 8 and 16 milliseconds per hole. <br /> <br />5.6.6 Location(s) of blast monitoring. <br />The only structure in the area is the Minnequa Canal (EVRAZ Company) in the NE of the mining area and <br />outside of the permit boundary. Holcim will monitor the canal when mining is within 0.5 mile of the Canal. <br /> <br />6. Commit to Generating and Filing a Blast Report <br /> <br />The red Creek Quarry must complete a blasting report for each shot. The report must be retained for at <br />least 3 years and be available for inspection by the DRMS on demand. <br />The record shall contain the following data: <br />a. Location date and time of blast; <br />b. Name, signature and license number of blaster-in-charge; <br />c. Identification, direction and distance in feet from the nearest blast hole to the nearest <br />potentially affected structure, such as any dwelling, school, church, or community or institutional <br />building either: <br />i. not located in the permit area; or <br />ii. Not owned nor leased by the person who conducts the mining operations. <br />d. Weather conditions, including temperature, wind direction, and approximate velocity <br />e. Type of material blasted <br />f. Sketches of the blast pattern including number of holes, burden spacing, and delay pattern. <br />Sketches shall also show decking, if holes are decked to achieve different delay times within a <br />hole <br />g. Diameter and depth of holes <br />h. Types of explosives used <br />i. Total weight of explosives used per hole and maximum weight of explosives used per 8- <br />millisecond period <br />j. Initiation system <br />k. Type and length of stemming <br />l. Mats or other protections used <br />m. Type of delay detonator and delay periods used <br />n. Number of persons in the blasting crew <br />o. Seismographic records where required including: <br />i. Type of instrument sensitivity and the calibration signal of the gain setting or certification of <br />annual calibration <br /> <br /> <br /> <br />
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