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North Star Rock: 1 reportable incident Metal/Non-Metal

Controlled by Jeff Hansen
Nevada County, CA  ·  Abandoned
MSHA Mine ID: 0404528

North Star Rock has had no fatalities among 1 reportable incident since 1998.

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Fatalities
0
Total incidents
1
Years on record
1998
Latest incident
Jul 1998
Inspection activity
MSHA inspections since 2000
1
inspections on record
1
inspection hours
n/a
citations per 100 inspection hours
ⓘ This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 1 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
  1. North Star Rock Products Inc 1981 to 1997
  2. Hansen Brothers Enterprises 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2001 0
2000 1
1999 3
1998 5
1997 8
1996 7
1995 5
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.

North Star Rock sits in Nevada County, California, where the Census mining category is 0.1% of county employment.

Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Nevada County, California · Population 102,452
0.1%
Mining share of county employment
$84,905
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
ⓘ Citations per million reported employee-hours. Rates begin in 2000; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2001 Q2 0 0 0
2000 Q4 0 0 0
2000 Q3 0 0 0
2000 Q2 15 0 0 0.0
2000 Q1 42 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1998 · 1 incident

July 18, 1998 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (PHYSICAL AGENTS)
Hansen Brothers Enterprises · Flash burns (welding)

AN EMPLOYEE WAS INSIDE OF CRUSHER HARDFACING THE ROLLS, INJURED EE WAS WORKING OUTSIDE AROUND THE CRUSHER. HE NEVER LOOKED DIRECTLY AT THE ARC FLASH AND THINKS HE RECEIVED MINOR FLASH BURNS F ROM THE REFLECTION OFF OF THE CRUSHER. HE FELT NO DISCOMFORT UNTIL EARLY EVENING. INJURED WAS NOT WEARING ANY KIND OF DARK GLASSES WHICH ARE AVAILABLE.