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: 319 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
COLTON PLANT 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
42 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-11-10.
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.
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: 2009-06-10, 17 years ago
8%
of limit-tested samples over the exposure limit
13
samples
12
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz61 over
Arsenic fumes3
Beryllium fumes3
Cadmium oxide fumes3
Show the individual readings (49)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2009-06-10
Quartz, respirable, >1% Qtz
1.29
1.12
1.15
Laborer, Bullgang
2009-06-10
Zinc oxide fumes
0
5
0.00
Welder, etc.
2009-06-10
Magnesium oxide fumes
0
10
0.00
Welder, etc.
2009-06-10
Manganese fumes
0
5
0.00
Welder, etc.
2009-06-10
Molybdenum fumes
0
10
0.00
Welder, etc.
2009-06-10
Nickel fumes
0
1
0.00
Welder, etc.
2009-06-10
Vanadium fumes
0
50
0.00
Welder, etc.
2009-06-10
Vanadium fumes
0
50
0.00
Welder, etc.
2009-06-10
Quartz, respirable, >1% Qtz
0.15
0.95
0.16
Laborer, Bullgang
2009-06-10
Zinc oxide fumes
0
10
0.00
Welder, etc.
2009-06-10
Arsenic fumes
0
1500
0.00
Welder, etc.
2009-06-10
Beryllium fumes
0
6
0.00
Welder, etc.
2009-06-10
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2009-06-10
Chromium, insoluble
0
3
0.00
Welder, etc.
2009-06-10
Cobalt fumes
0
300
0.00
Welder, etc.
2009-06-10
Copper fumes
11.34
300
0.04
Welder, etc.
2009-06-10
Iron oxide fumes
0.71
20
0.04
Welder, etc.
2009-06-10
Lead fumes
8.82
450
0.02
Welder, etc.
2009-06-10
Magnesium oxide fumes
0.1
20
0.01
Welder, etc.
2009-06-10
Manganese fumes
0.08
5
0.02
Welder, etc.
2009-06-10
Molybdenum fumes
0
20
0.00
Welder, etc.
2009-06-10
Nickel fumes
0
3
0.00
Welder, etc.
2009-06-10
Vanadium fumes
0
50
0.00
Welder, etc.
2009-06-10
Zinc oxide fumes
0.03
10
0.00
Welder, etc.
2009-06-10
Arsenic fumes
0
1500
0.00
Welder, etc.
2009-06-10
Beryllium fumes
0
6
0.00
Welder, etc.
2009-06-10
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2009-06-10
Chromium, insoluble
0
3
0.00
Welder, etc.
2009-06-10
Cobalt fumes
0
300
0.00
Welder, etc.
2009-06-10
Copper fumes
0
300
0.00
Welder, etc.
2009-06-10
Iron oxide fumes
0.21
20
0.01
Welder, etc.
2009-06-10
Lead fumes
5.59
450
0.01
Welder, etc.
2009-06-10
Magnesium oxide fumes
0.03
20
0.00
Welder, etc.
2009-06-10
Manganese fumes
0.03
5
0.01
Welder, etc.
2009-06-10
Molybdenum fumes
0
20
0.00
Welder, etc.
2009-06-10
Nickel fumes
0
3
0.00
Welder, etc.
2009-06-10
Arsenic fumes
0
500
0.00
Welder, etc.
2009-06-10
Beryllium fumes
0
2
0.00
Welder, etc.
2009-06-10
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2009-06-10
Chromium, insoluble
0
1
0.00
Welder, etc.
2009-06-10
Cobalt fumes
0
100
0.00
Welder, etc.
2009-06-10
Copper fumes
0
100
0.00
Welder, etc.
2009-06-10
Iron oxide fumes
0.03
10
0.00
Welder, etc.
2009-06-10
Lead fumes
0
150
0.00
Welder, etc.
2006-06-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2006-06-01
Quartz, respirable, >1% Qtz
0.37
1.53
0.24
Laborer, Bullgang
2002-05-22
Quartz, respirable, >1% Qtz
0.18
0.99
0.18
Front-end Loader Operator
2002-05-22
Quartz, respirable, >1% Qtz
0.2
1.18
0.17
Dry Screen Plant Operator
2001-07-02
Quartz, respirable, >1% Qtz
0.37
1.28
0.29
Front-end Loader Operator
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.
COLTON PLANT recorded 0.00 reportable injury cases per 100 full-time workers in 2009.
Injury rate, 2009
ⓘ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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 2.82 and the all-US-mining average was 3.36 cases per 100 workers.
In California, metal and nonmetal mining averaged 3.09 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
2009 *
0.00
0.00
0.000
2008 *
5.30
0.00
0.000
2007 *
0.00
0.00
0.000
2006 *
0.00
0.00
0.000
2005 *
0.00
0.00
0.000
2004 *
0.00
0.00
0.000
2003 *
0.00
0.00
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2010
2
2009
13
2008
19
2007
19
2006
14
2005
10
2004
9
2003
9
2002
11
2001
11
2000
8
Source: MSHA quarterly employment and production, updated weekly.
COLTON PLANT sits in San Bernardino 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.
San Bernardino County, California · Population 2,187,816
0.1%
Mining share of county employment
$82,184
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
2010 Q3
0
0
0
2010 Q2
250
0
0
0.0
2010 Q1
992
0
0
0.0
2009 Q4
4,167
1
0
240.0
2009 Q3
7,647
0
0
0.0
2009 Q2
7,311
4
0
547.1
2009 Q1
7,714
3
0
388.9
2008 Q4
7,640
0
0
0.0
Show 35 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2008 Q3
8,898
0
0
0.0
2008 Q2
10,439
2
2
191.6
2008 Q1
10,749
0
0
0.0
2007 Q4
10,625
2
0
188.2
2007 Q3
10,827
0
0
0.0
2007 Q2
9,998
0
0
0.0
2007 Q1
10,657
0
0
0.0
2006 Q4
9,735
1
1
102.7
2006 Q3
15,933
0
0
0.0
2006 Q2
7,746
2
1
258.2
2006 Q1
7,730
0
0
0.0
2005 Q4
7,853
1
0
127.3
2005 Q3
6,125
5
0
816.3
2005 Q2
5,494
0
0
0.0
2005 Q1
4,198
0
0
0.0
2004 Q4
5,421
3
0
553.4
2004 Q3
5,279
5
1
947.1
2004 Q2
5,361
0
0
0.0
2004 Q1
4,177
4
0
957.6
2003 Q4
5,418
0
0
0.0
2003 Q3
4,694
0
0
0.0
2003 Q2
5,225
0
0
0.0
2003 Q1
4,697
1
0
212.9
2002 Q4
4,559
0
0
0.0
2002 Q3
4,822
0
0
0.0
2002 Q2
4,723
1
0
211.7
2002 Q1
5,285
0
0
0.0
2001 Q4
4,632
3
0
647.7
2001 Q3
4,146
0
0
0.0
2001 Q2
3,977
2
0
502.9
2001 Q1
3,268
0
0
0.0
2000 Q4
3,974
0
0
0.0
2000 Q3
4,437
2
0
450.8
2000 Q2
4,397
0
0
0.0
2000 Q1
3,740
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
4 on file
2008 · 1 incident
April 3, 2008CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
54736YEE WAS WELDING A CRUSHER USING A TORCH CUTTER AND A SLAG HAMMER. AFTER FLAME CUTTING A PIECE OF METAL AND FRAGMENTS OF THE SLAG FROM THE METAL ENTERED HIS RIGHT EYE. ND FRAGMENTS OF THE SLAG FROM THE METAL ENTERED HIS RIGHT EYE.
WHILE GRINDING A PIECE OF ANGLE IRON, THE GRINDER CAUGHT THE CORNER OF THE METAL AND GRINDER JUMPED ANC CAUGHT LEFT HAND, FROM LITTLE FINGER KNUCKLE TOWARDS WRIST.
WHILE TRYING TO FREE A STUCK BOULDER, EMPLOYEE WAS POSTIONED AT THE FEEDER AREA TO THE ROCK PLANT. THE SUPERVISOR ACTIVATED THE FEEDER AND THE BOULDER DISLODGED AND ROLLED ACROSS THE EMPLOYEE S KNEE.