Mining Incidents

Crusher 1: 34 MSHA citations Metal/Non-Metal

Controlled by Gary Parkerson
Grand Junction, Mesa County, CO  ·  Intermittent
MSHA Mine ID: 0504586

Crusher 1 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2001
34
citations
6
significant & substantial
$3,479
proposed penalties
$3,479
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
36
inspections on record
403
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: 403 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher 1 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
34 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-28.
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.
17.6%
significant & substantial
0.0%
high negligence or reckless
17.6%
reasonably likely or greater
38.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.9% low, 97.1% 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: 2025-07-23
0%
of limit-tested samples over the exposure limit
14
samples
6
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg7
  • Quartz, respirable, >1% Qtz6
  • Unlisted Particulate, total, <1% Qtz1
Show the individual readings (14)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-07-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-07-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-07-23 Quartz, respirable, >1% Qtz 0.71 2.7 0.26 Crusher Oper/Worker
2021-03-12 Respirable dust, <.1mg 0 Crusher Oper/Worker
2019-01-25 Quartz, respirable, >1% Qtz 0.27 0.53 0.51 Front-end Loader Operator
2019-01-25 Quartz, respirable, >1% Qtz 0.17 0.59 0.29 Crusher Oper/Worker
2015-10-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2015-10-08 Unlisted Particulate, total, <1% Qtz 0.36 Backhoe Operator
2015-10-08 Quartz, respirable, >1% Qtz 0.13 0.53 0.25 Front-end Loader Operator
2010-11-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-11-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2001-09-06 Quartz, respirable, >1% Qtz 0.12 0.28 0.43 Crusher Oper/Worker
2001-09-06 Quartz, respirable, >1% Qtz 0.18 1 0.18 Front-end Loader Operator
2001-09-06 Respirable dust, <.1mg 0 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.
Ownership history
  1. Parkerson Construction Inc 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 2
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 2
2013 0
2012 0
2011 2
2010 1
2009 3
2008 6
2007 4
2006 3
2005 4
2004 3
2003 3
2002 3
2001 3
2000 3
Source: MSHA quarterly employment and production, updated weekly.

Crusher 1 sits in Mesa County, Colorado, where the Census mining category is 2.0% 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.
Mesa County, Colorado · Population 157,316
2.0%
Mining share of county employment
$71,485
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
2026 Q2 713 1 0 1402.5
2026 Q1 833 0 0 0.0
2025 Q4 968 0 0 0.0
2025 Q3 1,752 0 0 0.0
2025 Q2 1,935 0 0 0.0
2025 Q1 1,918 0 0 0.0
2024 Q4 813 0 0 0.0
2024 Q3 1,262 0 0 0.0
Show 89 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,326 0 0 0.0
2024 Q1 1,064 0 0 0.0
2023 Q4 827 0 0 0.0
2023 Q3 1,089 1 0 918.3
2023 Q2 391 0 0 0.0
2023 Q1 1,149 0 0 0.0
2022 Q4 631 0 0 0.0
2022 Q3 209 0 0 0.0
2022 Q2 819 0 0 0.0
2022 Q1 1,037 0 0 0.0
2021 Q4 894 0 0 0.0
2021 Q3 1,396 0 0 0.0
2021 Q2 1,188 0 0 0.0
2021 Q1 771 0 0 0.0
2020 Q4 1,216 0 0 0.0
2020 Q3 1,260 0 0 0.0
2020 Q2 1,374 0 0 0.0
2020 Q1 1,254 0 0 0.0
2019 Q4 988 0 0 0.0
2019 Q3 1,067 0 0 0.0
2019 Q2 1,266 0 0 0.0
2019 Q1 564 0 0 0.0
2018 Q4 127 0 0 0.0
2018 Q3 0 0 0
2018 Q2 437 0 0 0.0
2018 Q1 1,157 0 0 0.0
2017 Q4 495 0 0 0.0
2017 Q3 633 2 0 3159.6
2017 Q2 732 0 0 0.0
2017 Q1 380 0 0 0.0
2016 Q4 0 0 0
2016 Q3 446 0 0 0.0
2016 Q2 1,157 0 0 0.0
2016 Q1 1,055 0 0 0.0
2015 Q4 1,022 1 1 978.5
2015 Q3 1,045 0 0 0.0
2015 Q2 550 2 1 3636.4
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 0 0 0
2012 Q1 0 0 0
2011 Q4 1,134 0 0 0.0
2011 Q3 653 0 0 0.0
2011 Q2 761 0 0 0.0
2011 Q1 810 0 0 0.0
2010 Q4 242 2 0 8264.5
2010 Q2 0 0 0
2010 Q1 581 0 0 0.0
2009 Q4 474 0 0 0.0
2009 Q3 1,115 0 0 0.0
2009 Q2 1,014 0 0 0.0
2009 Q1 2,054 3 0 1460.6
2008 Q4 2,563 0 0 0.0
2008 Q3 2,531 0 0 0.0
2008 Q2 3,749 0 0 0.0
2008 Q1 4,097 1 0 244.1
2007 Q4 2,430 0 0 0.0
2007 Q3 1,429 2 1 1399.6
2007 Q2 1,537 0 0 0.0
2007 Q1 1,848 0 0 0.0
2006 Q4 1,919 0 0 0.0
2006 Q3 533 0 0 0.0
2006 Q2 1,727 0 0 0.0
2006 Q1 1,967 0 0 0.0
2005 Q4 1,302 0 0 0.0
2005 Q3 1,212 0 0 0.0
2005 Q2 861 0 0 0.0
2005 Q1 1,387 0 0 0.0
2004 Q4 656 0 0 0.0
2004 Q3 0 3 0
2004 Q2 191 0 0 0.0
2004 Q1 827 0 0 0.0
2003 Q4 979 0 0 0.0
2003 Q3 653 0 0 0.0
2003 Q2 671 0 0 0.0
2003 Q1 1,358 0 0 0.0
2002 Q4 361 0 0 0.0
2002 Q3 0 1 0
2002 Q2 531 0 0 0.0
2002 Q1 625 0 0 0.0
2001 Q4 328 0 0 0.0
2001 Q3 1,487 15 3 10087.4
2001 Q2 520 0 0 0.0
2001 Q1 708 0 0 0.0
2000 Q4 14 0 0 0.0
2000 Q3 201 0 0 0.0
2000 Q2 678 0 0 0.0
2000 Q1 968 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.