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Bluestone Pit: 31 MSHA citations Metal/Non-Metal

Controlled by Holcim Ltd
Golden, Jefferson County, CO  ·  Abandoned
MSHA Mine ID: 0502777

Bluestone Pit has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
9
Years on record
1991–2003
Latest incident
Feb 2003
Compliance record
MSHA citations since 2000
31
citations
8
significant & substantial
$2,874
proposed penalties
$2,798
paid to date
97% of proposed penalties paid to date, a $76 gap.
Source: MSHA violations data, updated weekly.
See Lafarge West Incorporated's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
7
inspections on record
168
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: 168 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Bluestone Pit has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.

Penalty disposition
ⓘ Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
31 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2002-06-13.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
ⓘ Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
25.8%
significant & substantial
0.0%
high negligence or reckless
25.8%
reasonably likely or greater
35.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 35.5% low, 64.5% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
ⓘ A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
ⓘ Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2000-08-02, 26 years ago
0%
of limit-tested samples over the exposure limit
3
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz3
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2000-08-02 Quartz, respirable, >1% Qtz 0.21 0.23 0.91 Front-end Loader Operator
2000-08-02 Quartz, respirable, >1% Qtz 0.19 0.41 0.46 Mechanic
2000-08-02 Quartz, respirable, >1% Qtz 0.35 0.47 0.74 Crusher Oper/Worker
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

Bluestone Pit recorded 7.67 reportable injury cases per 100 full-time workers in 2002.

Injury rate, 2002
ⓘ This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
7.67
total case rate
7.67
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 4.17 and the all-US-mining average was 5.05 cases per 100 workers.
In Colorado, metal and nonmetal mining averaged 4.95 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2002 * 7.67 7.67 0.000
2001 * 0.00 0.00 0.000
2000 * 15.36 7.68 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Wesley D Conda Inc 1950 to 1993
  2. Bluestone Aggregates Company 1993 to 1997
  3. Bluestone Aggregates Company 1997 to 1999
  4. Western Mobile Inc 1999 to 2002
  5. Lafarge West Incorporated 2002 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2003 6
2002 8
2001 10
2000 9
Source: MSHA quarterly employment and production, updated weekly.

Bluestone Pit sits in Jefferson County, Colorado, where the Census mining category is 0.8% 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.
Jefferson County, Colorado · Population 579,715
0.8%
Mining share of county employment
$107,800
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, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. 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
2003 Q2 1,160 0 0 0.0
2003 Q1 3,775 0 0 0.0
2002 Q4 2,677 0 0 0.0
2002 Q3 6,945 0 0 0.0
2002 Q2 9,654 2 0 207.2
2002 Q1 6,814 3 2 440.3
2001 Q4 4,705 2 0 425.1
2001 Q3 7,262 0 0 0.0
Show 6 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2001 Q2 7,285 0 0 0.0
2001 Q1 7,739 12 1 1550.6
2000 Q4 2,320 0 0 0.0
2000 Q3 7,376 12 5 1626.9
2000 Q2 9,312 0 0 0.0
2000 Q1 7,034 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

9 on file

2003 · 1 incident

2002 · 1 incident

February 6, 2002 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Lafarge West Incorporated · Fall from ladders

CHANGING 2 GREASE ZERTS ON THE END OF THE TILT CYLINDERS, STEPPED FROM LADDER, MISPLACED FOOT, SLIPPED AND FELL, LANDING ON HIS BACK.

2000 · 2 incidents

November 17, 2000 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Western Mobile Inc · Fall from machine

FEEDER ON FINISH SIDE PLUGGED WITH FROZEN CHUNK. HE BROKE IT & UPON CLIMBING OFF THE FEEDER, SLIPPED AND FELL.

May 25, 2000 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Western Mobile Inc · Over-exertion in lifting objects

LIFTING AN OIL BARREL AND FELT A POP IN RIGHT SHOULDER.

1999 · 1 incident

May 12, 1999 CO · Metal/Non-Metal welder (shop) MACHINERY
Western Mobile Inc · Struck by falling object

LIFTING A CONVEYOR WITH A CRANE, SHAIN SLIPPED AND CONVEYOR FELL NO MORE THAN 12 INCHES ONTO HIS FOOT.

1995 · 2 incidents

October 6, 1995 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Bluestone Aggregates Company · Struck by falling object

AN ACCIDENT INVOLVING A TEMPORARY LABORER OCCURRED AT THE BLUESTONE AGGREGATE OPERATIONS ON FRIDAY OCTOBER 6 1995 SOMETIME BETWEEN 12:50 PM & 1:00 PM ACCORDING TO PLANT PERSONNEL WHO WERE INTE RVIEWED THE INVESTIGATION OF THE ACCIDENT BEGAN AT APPROXIMATELY 1:45PM & WAS CONDUCTED PRIMARILY BY MYSELF THE BLUESTONE OPERATIONS SITS APPROXIMATELY 5 MILES SOUTH OF BOULDER ON HIGHWAY 39

February 17, 1995 CO · Metal/Non-Metal MACHINERY
Bluestone Aggregates Company · Accident type, without injuries

MOVING CRANE WITH BOOM DOGGED OVER REAR IN UP POSITION CAUGHT NEUTRAL WIRE IT SNAPPED OFF OF BOOM AND CAUGHT POWER WIRES AND DISLODGED TWO WIRES FROM INSULATORS CRANE.

1992 · 1 incident

1991 · 1 incident