Colton Aggregates has $16K 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
7
Years on record
2014–2019
Latest incident
Jul 2019
Compliance record
MSHA citations since 2006
51
citations
11
significant & substantial
$16,225
proposed penalties
$16,225
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 510 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 Aggregates has $16K 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.
$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
51 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2018-04-03.
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: 2017-10-12, 8 years ago
17%
of limit-tested samples over the exposure limit
9
samples
6
limit-tested
Most sampled contaminants
Noise dosimeter, 80dBA threshold dose11 over
Quartz, respirable, >1% Qtz5
Respirable dust, <.1mg3
Show the individual readings (9)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2014-11-18
Noise dosimeter, 80dBA threshold dose
83.49
50
1.67
Laborer, Bullgang
2017-10-12
Quartz, respirable, >1% Qtz
0.24
1.31
0.18
Laborer, Bullgang
2017-10-12
Quartz, respirable, >1% Qtz
1.47
2.14
0.69
Laborer, Bullgang
2017-10-12
Quartz, respirable, >1% Qtz
0.71
2.18
0.33
Laborer, Bullgang
2014-11-18
Quartz, respirable, >1% Qtz
0.23
1.51
0.15
Laborer, Bullgang
2014-11-18
Respirable dust, <.1mg
0
Laborer, Bullgang
2014-11-18
Quartz, respirable, >1% Qtz
1.2
2.36
0.51
Front-end Loader Operator
2009-04-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-04-07
Respirable dust, <.1mg
0
Truck Driver
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 Aggregates recorded 5.45 reportable injury cases per 100 full-time workers in 2018.
Injury rate, 2018
ⓘ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.
5.45
total case rate
2.73
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.95 and the all-US-mining average was 2.33 cases per 100 workers.
In California, metal and nonmetal mining averaged 1.92 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
2018 *
5.45
2.73
0.000
2017 *
0.00
0.00
0.000
2016 *
0.00
0.00
0.000
2015 *
13.36
8.91
0.000
2014 *
5.44
5.44
0.000
2008 *
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
2019
7
2018
32
2017
28
2016
29
2015
26
2014
16
2013
8
2012
3
2011
6
2010
5
2009
7
2008
10
2007
5
2006
5
Source: MSHA quarterly employment and production, updated weekly.
Colton Aggregates 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
2019 Q3
2,553
0
0
0.0
2019 Q2
5,006
0
0
0.0
2019 Q1
4,608
0
0
0.0
2018 Q4
18,629
0
0
0.0
2018 Q3
19,904
0
0
0.0
2018 Q2
17,696
2
1
113.0
2018 Q1
17,144
0
0
0.0
2017 Q4
13,442
6
0
446.4
Show 44 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2017 Q3
11,032
0
0
0.0
2017 Q2
12,490
1
0
80.1
2017 Q1
13,948
0
0
0.0
2016 Q4
14,098
1
0
70.9
2016 Q3
14,747
2
0
135.6
2016 Q2
13,962
6
0
429.7
2016 Q1
15,930
1
1
62.8
2015 Q4
14,467
6
2
414.7
2015 Q3
10,602
2
0
188.6
2015 Q2
9,071
0
0
0.0
2015 Q1
10,755
0
0
0.0
2014 Q4
14,358
4
3
278.6
2014 Q3
10,816
0
0
0.0
2014 Q2
6,511
2
1
307.2
2014 Q1
5,106
0
0
0.0
2013 Q4
5,799
2
2
344.9
2013 Q3
4,766
0
0
0.0
2013 Q2
4,169
1
0
239.9
2013 Q1
3,082
0
0
0.0
2012 Q3
1,671
0
0
0.0
2012 Q2
1,561
0
0
0.0
2012 Q1
1,607
0
0
0.0
2011 Q4
2,143
0
0
0.0
2011 Q3
2,827
1
0
353.7
2011 Q2
2,454
0
0
0.0
2011 Q1
2,577
1
0
388.0
2010 Q4
2,488
0
0
0.0
2010 Q3
2,577
0
0
0.0
2010 Q2
2,828
1
0
353.6
2010 Q1
2,440
0
0
0.0
2009 Q4
2,758
1
0
362.6
2009 Q3
3,109
0
0
0.0
2009 Q2
2,808
2
0
712.3
2009 Q1
3,473
0
0
0.0
2008 Q4
3,711
1
0
269.5
2008 Q3
4,566
0
0
0.0
2008 Q2
5,088
0
0
0.0
2008 Q1
11,084
0
0
0.0
2007 Q4
3,020
1
0
331.1
2007 Q3
2,705
0
0
0.0
2007 Q2
2,175
0
0
0.0
2007 Q1
2,187
0
0
0.0
2006 Q4
1,809
1
0
552.8
2006 Q3
2,034
2
0
983.3
No fatalities recorded at this mine.
Reportable incidents
7 on file
2019 · 1 incident
July 8, 2019CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
The employee was working on Level 1, operating Loader 990, digging shot material and loading haul trucks.
2015 · 3 incidents
October 13, 2015CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
The employee twisted his knee while exiting the cab of the service truck he was driving. The employee was parking the truck at the end of his shift when the incident occurred. The employee initially refused treatment and proceeded to go home after clocking out. Later that day, the employees knee had become sore and swollen, and he was sent to a clinic for medical evaluation.
June 9, 2015CA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON
The EE slipped while getting out of the bed of a pickup truck after retrieving an item and his lower right leg contacted the truck as he fell. There were no initial signs of an injury other than a small bruise. As the day progressed the bruising and swelling increased. Ultimately the employee had ruptured a small artery causing a hematoma that had to be surgically relieved.
March 11, 2015CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techMACHINERY
The task being performed was changing wear steel on a screen. The repairman was backing out a bolt with an impact gun when it spun out and cut his finger. The extent of the injury was a laceration to the left index finger requiring three stitches. The employee was wearing gloves when this incident occurred.
Site conditions were clear skies with no adverse weather. Equipment operator was driving a haul truck on the quarry road when the truck struck a pothole in the road, jarring the operator. The operator did not notify anyone of this incident and finished his shift on 3/17/14. The operator reported a sore, stiff back when he reported to duty on the morning of 3/18/14.