Mining Incidents

Washplant 1: 18 MSHA citations Metal/Non-Metal

Controlled by Summit Materials LLC
Parachute, CO, Mesa County, CO  ·  Intermittent
MSHA Mine ID: 0504873

Washplant 1 has $2K 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 2008
18
citations
4
significant & substantial
$2,316
proposed penalties
$2,316
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2008
23
inspections on record
309
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: 309 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Washplant 1 has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
18 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-11-12.
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.
22.2%
significant & substantial
0.0%
high negligence or reckless
22.2%
reasonably likely or greater
22.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% 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: 2025-08-12
0%
of limit-tested samples over the exposure limit
10
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz5
  • Respirable dust, <.1mg5
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-12 Respirable dust, <.1mg 0 Crusher Oper/Worker
2025-08-12 Quartz, respirable, >1% Qtz 0.2 0.69 0.29 Laborer, Bullgang
2025-08-12 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2025-08-12 Quartz, respirable, >1% Qtz 0.23 1.14 0.20 Front-end Loader Operator
2018-11-06 Respirable dust, <.1mg 0 Utility Man
2017-03-29 Quartz, respirable, >1% Qtz 0.16 0.86 0.19 Laborer, Bullgang
2012-10-11 Respirable dust, <.1mg 0 Laborer, Bullgang
2012-10-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-09-14 Quartz, respirable, >1% Qtz 0.3 0.6 0.50 Laborer, Bullgang
2010-09-14 Quartz, respirable, >1% Qtz 0.19 1.76 0.11 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. Grand Junction Concrete Pipe Company 2007 to 2012
  2. Elam Sand and Gravel 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 3
2023 3
2022 3
2021 2
2020 1
2019 2
2018 5
2017 2
2016 1
2015 1
2014 2
2013 1
2012 2
2011 2
2010 3
2009 2
2008 1
2007 0
Source: MSHA quarterly employment and production, updated weekly.

Washplant 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 1,018 0 0 0.0
2026 Q1 521 0 0 0.0
2025 Q4 533 1 0 1876.2
2025 Q3 1,483 0 0 0.0
2025 Q2 1,177 0 0 0.0
2025 Q1 0 0 0
2024 Q4 963 0 0 0.0
2024 Q3 3,037 2 0 658.5
Show 68 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 835 0 0 0.0
2024 Q1 342 0 0 0.0
2023 Q4 196 0 0 0.0
2023 Q3 811 0 0 0.0
2023 Q2 1,410 0 0 0.0
2023 Q1 57 0 0 0.0
2022 Q4 921 0 0 0.0
2022 Q3 2,347 0 0 0.0
2022 Q2 0 0 0
2022 Q1 0 0 0
2021 Q4 65 0 0 0.0
2021 Q3 197 0 0 0.0
2021 Q2 715 2 0 2797.2
2021 Q1 240 0 0 0.0
2020 Q4 427 0 0 0.0
2020 Q3 448 0 0 0.0
2020 Q2 0 0 0
2020 Q1 0 0 0
2019 Q4 0 0 0
2019 Q3 947 0 0 0.0
2019 Q2 660 0 0 0.0
2019 Q1 292 0 0 0.0
2018 Q4 2,273 1 0 439.9
2018 Q3 1,317 0 0 0.0
2018 Q2 2,309 0 0 0.0
2018 Q1 1,078 0 0 0.0
2017 Q4 150 0 0 0.0
2017 Q3 897 0 0 0.0
2017 Q2 1,517 0 0 0.0
2017 Q1 486 0 0 0.0
2016 Q4 0 0 0
2016 Q3 0 0 0
2016 Q2 0 0 0
2016 Q1 149 0 0 0.0
2015 Q4 0 0 0
2015 Q3 0 0 0
2015 Q2 417 0 0 0.0
2015 Q1 316 0 0 0.0
2014 Q4 82 0 0 0.0
2014 Q3 309 2 1 6472.5
2014 Q2 258 0 0 0.0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 64 0 0 0.0
2013 Q2 493 0 0 0.0
2013 Q1 0 0 0
2012 Q4 946 0 0 0.0
2012 Q3 212 0 0 0.0
2012 Q2 691 0 0 0.0
2012 Q1 18 0 0 0.0
2011 Q4 344 0 0 0.0
2011 Q3 391 0 0 0.0
2011 Q2 1,188 0 0 0.0
2011 Q1 172 3 1 17441.9
2010 Q4 165 0 0 0.0
2010 Q3 1,694 3 2 1771.0
2010 Q2 1,364 0 0 0.0
2010 Q1 0 0 0
2009 Q4 304 0 0 0.0
2009 Q3 1,315 0 0 0.0
2009 Q2 557 0 0 0.0
2009 Q1 732 0 0 0.0
2008 Q4 1,190 0 0 0.0
2008 Q3 1,140 4 0 3508.8
2008 Q2 0 0 0
2008 Q1 0 0 0
2007 Q4 0 0 0
2007 Q3 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.