Mining Incidents

HP 300 (Crusher 4): 66 MSHA citations Metal/Non-Metal

Elam Construction · Surface
Controlled by Summit Materials LLC
Aspen, Delta County, CO  ·  Intermittent
MSHA Mine ID: 0504594

HP 300 (Crusher 4) has $12K in proposed MSHA penalties and $852 outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
3
Years on record
2006–2013
Latest incident
Jan 2013
Compliance record
MSHA citations since 2000
66
citations
16
significant & substantial
$11,849
proposed penalties
$9,295
paid to date
78% of proposed penalties paid to date, a $2,554 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
44
inspections on record
444
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: 444 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

HP 300 (Crusher 4) has $12K in proposed MSHA penalties and $852 outstanding across 4 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.
$12K
proposed penalties
$10K
current assessed
$9K
paid to date
$852
outstanding
66 assessments are final orders; 4 contested dockets.
Of $7K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2025-03-18.
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.
24.2%
significant & substantial
7.6%
high negligence or reckless
24.2%
reasonably likely or greater
57.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 6.1% low, 86.4% moderate, 7.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
16 citations taken to the federal commission · 24% of citations on record
  • Settled 16 · 100%
83%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 12 decided S&S contests · industry: 79%
23%
Penalty reduction in decided contests
$6K proposed, $5K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2016-09-06.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2016-0690 Settlement Manning 2017 $3K → $3K
WEST 2016-0689 Settlement Manning 2017 $2K → $875
WEST 2016-0641 Settlement Manning 2017 $1K → $1K
WEST20010345M Settlement Hodgdon 2001 $600 → $300
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-10-23
0%
of limit-tested samples over the exposure limit
14
samples
7
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz7
  • Respirable dust, <.1mg5
  • Unlisted Particulate, total, <1% Qtz2
Show the individual readings (14)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-23 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-09-12 Quartz, respirable, >1% Qtz 0.15 0.63 0.24 Front-end Loader Operator
2024-09-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-09-12 Quartz, respirable, >1% Qtz 0.16 0.71 0.23 Laborer, Bullgang
2024-09-12 Quartz, respirable, >1% Qtz 0.18 0.73 0.25 Crusher Oper/Worker
2024-09-12 Quartz, respirable, >1% Qtz 0.28 1.25 0.22 Supervisor, Co. Official
2018-11-06 Quartz, respirable, >1% Qtz 0.21 0.64 0.33 Crusher Oper/Worker
2018-11-06 Quartz, respirable, >1% Qtz 0.21 0.65 0.32 Laborer, Bullgang
2015-08-27 Unlisted Particulate, total, <1% Qtz 0.14 Front-end Loader Operator
2015-08-27 Unlisted Particulate, total, <1% Qtz 0.18 Crusher Oper/Worker
2009-05-21 Quartz, respirable, >1% Qtz 0.21 0.47 0.45 Crusher Oper/Worker
2005-06-22 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. Snowstorm Sand & Gravel LLC 1997 to 2006
  2. Everist Materials LLC 2006 to 2017
  3. Elam Construction 2017 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 3
2024 5
2023 6
2022 6
2021 6
2020 4
2019 2
2018 3
2017 2
2016 3
2015 3
2014 2
2013 2
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
2006 2
2005 2
2004 4
2003 6
2002 3
2001 4
2000 5
Source: MSHA quarterly employment and production, updated weekly.

HP 300 (Crusher 4) sits in Delta County, Colorado, where the Census mining category is 5.2% 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.
Delta County, Colorado · Population 31,353
5.2%
Mining share of county employment
$58,330
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 772 0 0 0.0
2026 Q1 3,058 0 0 0.0
2025 Q4 1,599 0 0 0.0
2025 Q3 0 0 0
2025 Q2 1,630 0 0 0.0
2025 Q1 617 1 0 1620.7
2024 Q4 2,482 0 0 0.0
2024 Q3 4,551 0 0 0.0
Show 91 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,723 0 0 0.0
2024 Q1 0 0 0
2023 Q4 2,570 0 0 0.0
2023 Q3 4,279 0 0 0.0
2023 Q2 2,406 3 0 1246.9
2023 Q1 3,266 0 0 0.0
2022 Q4 3,637 0 0 0.0
2022 Q3 2,892 0 0 0.0
2022 Q2 5,083 0 0 0.0
2022 Q1 3,443 0 0 0.0
2021 Q4 1,579 0 0 0.0
2021 Q3 2,744 1 0 364.4
2021 Q2 3,538 0 0 0.0
2021 Q1 2,033 0 0 0.0
2020 Q4 289 0 0 0.0
2020 Q3 253 0 0 0.0
2020 Q2 2,022 2 0 989.1
2020 Q1 1,170 0 0 0.0
2019 Q4 1,464 0 0 0.0
2019 Q3 1,775 0 0 0.0
2019 Q2 434 0 0 0.0
2019 Q1 292 0 0 0.0
2018 Q4 2,273 1 0 439.9
2018 Q3 633 0 0 0.0
2018 Q2 80 0 0 0.0
2018 Q1 290 4 0 13793.1
2017 Q4 261 0 0 0.0
2017 Q3 132 0 0 0.0
2017 Q2 73 0 0 0.0
2017 Q1 657 0 0 0.0
2016 Q4 1,183 0 0 0.0
2016 Q3 1,277 0 0 0.0
2016 Q2 1,076 16 10 14869.9
2016 Q1 923 0 0 0.0
2015 Q4 743 0 0 0.0
2015 Q3 1,293 1 0 773.4
2015 Q2 852 0 0 0.0
2015 Q1 570 0 0 0.0
2014 Q4 181 0 0 0.0
2014 Q3 778 1 0 1285.3
2014 Q2 1,333 0 0 0.0
2014 Q1 163 0 0 0.0
2013 Q4 0 0 0
2013 Q3 1,196 0 0 0.0
2013 Q2 794 1 1 1259.4
2013 Q1 1,006 0 0 0.0
2012 Q4 0 0 0
2012 Q3 1,292 0 0 0.0
2012 Q2 1,909 0 0 0.0
2012 Q1 216 0 0 0.0
2011 Q4 470 0 0 0.0
2011 Q3 1,037 0 0 0.0
2011 Q2 990 2 0 2020.2
2011 Q1 1,420 0 0 0.0
2010 Q4 638 0 0 0.0
2010 Q3 1,241 0 0 0.0
2010 Q2 1,255 0 0 0.0
2010 Q1 1,045 0 0 0.0
2009 Q4 565 5 3 8849.6
2009 Q3 909 0 0 0.0
2009 Q2 618 3 1 4854.4
2009 Q1 122 0 0 0.0
2008 Q4 380 0 0 0.0
2008 Q3 820 0 0 0.0
2008 Q2 755 0 0 0.0
2007 Q3 1,459 0 0 0.0
2007 Q2 974 0 0 0.0
2007 Q1 830 0 0 0.0
2006 Q4 817 0 0 0.0
2006 Q3 1,364 1 0 733.1
2006 Q2 1,180 0 0 0.0
2006 Q1 1,251 0 0 0.0
2005 Q4 1,610 0 0 0.0
2005 Q3 2,814 0 0 0.0
2005 Q2 1,529 4 1 2616.1
2005 Q1 1,059 2 0 1888.6
2004 Q4 1,371 0 0 0.0
2004 Q3 2,260 2 0 885.0
2004 Q2 1,035 0 0 0.0
2004 Q1 729 2 0 2743.5
2003 Q4 1,582 0 0 0.0
2003 Q3 3,409 3 0 880.0
2003 Q2 1,040 0 0 0.0
2003 Q1 266 0 0 0.0
2002 Q4 399 0 0 0.0
2002 Q3 1,600 0 0 0.0
2001 Q3 3,840 0 0 0.0
2001 Q2 1,440 6 0 4166.7
2001 Q1 360 0 0 0.0
2000 Q3 3,200 3 0 937.5
2000 Q2 2,350 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2013 · 1 incident

January 28, 2013 CO · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
Everist Materials LLC · Fall to the walkway or working surface

Slippery surface due to snowy conditions. Employee was stepping down to another level of the catwalk and slip and fall on to the catwalk

2007 · 1 incident

April 13, 2007 CO · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Everist Materials LLC · Over-exertion in lifting objects

The terrain was rough with rocks strewn about the site. The employee was manually pulling slack from conveyor belting when his knee slipped sideways and something popped inside his knee.

2006 · 1 incident

July 27, 2006 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STEPPING OR KNEELING ON OBJECT
Everist Materials LLC · Struck against stationary object

Employee was exiting a track excavator and stepped on a rock and his right knee gave way.