Inspection Detail

Inspection: 120268529 - National Quarries

Inspection Information - Office: Van Nuys Mining & Tunneling District Office

Inspection Nr: 120268529

Report ID: 0950652

Date Opened: 10/06/1995

Site Address:
National Quarries
28474 North Twin Oaks Valley Road
San Marcos, CA 92069

Mailing Address:
, , 00000

Union Status: NonUnion

SIC:1411

NAICS: 0

Inspection Type: Accident

Scope: Partial

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 12/11/1995

Emphasis: L:Tunnel

Case Closed: 08/30/1996

Related Activity
Type	Activity Nr	Safety	Health
Accident	361364144

Violation Summary
Violations/Penalties	Serious	Willful	Repeat	Other	Unclass	Total
Initial Violations	1			1		2
Current Violations	1			1		2
Initial Penalty	$1,500	$0	$0	$75	$0	$1,575
Current Penalty	$1,500	$0	$0	$75	$0	$1,575
FTA Penalty	$0	$0	$0	$0	$0	$0

Violation Items
#	Citation ID	Citaton Type	Standard Cited	Issuance Date	Abatement Due Date	Current Penalty	Initial Penalty	FTA Penalty	Contest	Latest Event	Note
1.	01001	Other	3203 A	01/18/1996	12/11/1995	$75	$75	$0		-
2.	02001	Serious	7237 D	01/18/1996	10/07/1995	$1,500	$1,500	$0		-

Investigation Summary

Investigation Nr: 170591507

Event: 10/06/1995

Employee Killed in Black Powder Explosion

Employee #1 was drilling plug holes on a mined granite block that measured 5 ft wide by 6 ft long by 3 3/4 ft high. The plug holes were 0.75 in. in diameter and 5 in. deep. Employee #1 had drilled two plug holes. The third plug hole, which was drilled perpendicularly about 3 in. from the second, was directly in line with a blast hole. The pneumatic drill apparently hit the unexploded black powder in the blast hole, causing an explosion. Employee #1's liver was lacerated, and he was killed.

Keywords: BLASTING, EXPLOSIVES, DRILL OPERATOR, DRILLING MACHINE, ROCK, WORK RULES, LIVER, EXPLOSION, LACERATION

Investigated Inspection
#	Inspection	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	120268529			Fatality	Cut/Laceration	Mining machine operators

Thank You for Visiting Our Website

You are exiting the Department of Labor's Web server.

The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site. Thank you for visiting our site. Please click the button below to continue.