Mining Incidents

Washplant 4 Metal/Non-Metal

Controlled by Summit Materials LLC
Durango, La Plata County, CO  ·  Active
MSHA Mine ID: 0503809

Washplant 4 has $11K in proposed MSHA penalties and $151 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
2004–2016
Latest incident
Mar 2016
Compliance record
MSHA citations since 2000
85
citations
20
significant & substantial
$11,115
proposed penalties
$10,964
paid to date
99% of proposed penalties paid to date, a $151 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
62
inspections on record
842
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: 842 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 4 has $11K in proposed MSHA penalties and $151 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$151
outstanding
82 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-24.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 998 0 0 0.0
2025 Q3 379 2 1 5277.0
2025 Q2 435 0 0 0.0
2025 Q1 734 0 0 0.0
2024 Q4 438 0 0 0.0
2024 Q3 493 0 0 0.0
2024 Q2 405 0 0 0.0
2024 Q1 244 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 474 0 0 0.0
2023 Q3 539 0 0 0.0
2023 Q2 470 0 0 0.0
2023 Q1 2,527 0 0 0.0
2022 Q4 505 0 0 0.0
2022 Q3 754 0 0 0.0
2022 Q2 575 0 0 0.0
2022 Q1 2,616 0 0 0.0
2021 Q4 470 0 0 0.0
2021 Q3 621 0 0 0.0
2021 Q2 495 0 0 0.0
2021 Q1 0 0 0
2020 Q4 165 0 0 0.0
2020 Q3 1,013 0 0 0.0
2020 Q2 1,638 0 0 0.0
2020 Q1 650 0 0 0.0
2019 Q4 1,411 0 0 0.0
2019 Q3 1,013 0 0 0.0
2019 Q2 1,290 1 0 775.2
2019 Q1 1,349 0 0 0.0
2018 Q4 1,198 0 0 0.0
2018 Q3 1,022 0 0 0.0
2018 Q2 1,543 0 0 0.0
2018 Q1 2,049 1 0 488.0
2017 Q4 596 0 0 0.0
2017 Q3 599 0 0 0.0
2017 Q2 572 6 1 10489.5
2017 Q1 1,426 1 0 701.3
2016 Q4 583 0 0 0.0
2016 Q3 1,405 0 0 0.0
2016 Q2 1,404 2 0 1424.5
2016 Q1 1,448 0 0 0.0
2015 Q4 1,278 0 0 0.0
2015 Q3 2,014 0 0 0.0
2015 Q2 654 0 0 0.0
2015 Q1 656 0 0 0.0
2014 Q4 449 6 0 13363.0
2014 Q3 749 0 0 0.0
2014 Q2 538 0 0 0.0
2014 Q1 922 1 0 1084.6
2013 Q4 1,344 0 0 0.0
2013 Q3 428 0 0 0.0
2013 Q2 542 0 0 0.0
2013 Q1 0 0 0
2012 Q4 3,258 1 0 306.9
2012 Q3 4,214 0 0 0.0
2012 Q2 3,419 0 0 0.0
2012 Q1 3,167 0 0 0.0
2011 Q4 3,016 0 0 0.0
2011 Q3 3,507 0 0 0.0
2011 Q2 2,775 1 0 360.4
2011 Q1 1,620 2 2 1234.6
2010 Q4 3,085 0 0 0.0
2010 Q3 2,907 0 0 0.0
2010 Q2 3,411 1 0 293.2
2010 Q1 2,543 3 1 1179.7
2009 Q4 3,058 0 0 0.0
2009 Q3 3,395 0 0 0.0
2009 Q2 3,812 1 0 262.3
2009 Q1 2,604 0 0 0.0
2008 Q4 3,323 3 0 902.8
2008 Q3 3,078 0 0 0.0
2008 Q2 3,666 2 0 545.6
2008 Q1 3,211 0 0 0.0
2007 Q4 4,395 3 0 682.6
2007 Q3 3,294 0 0 0.0
2007 Q2 3,453 0 0 0.0
2007 Q1 3,093 7 3 2263.2
2006 Q4 3,927 0 0 0.0
2006 Q3 3,411 0 0 0.0
2006 Q2 3,460 0 0 0.0
2006 Q1 2,244 3 0 1336.9
2005 Q4 3,264 4 1 1225.5
2005 Q3 3,729 0 0 0.0
2005 Q2 2,575 0 0 0.0
2005 Q1 2,458 1 0 406.8
2004 Q4 3,459 0 0 0.0
2004 Q3 3,038 1 0 329.2
2004 Q2 2,968 0 0 0.0
2004 Q1 2,927 0 0 0.0
2003 Q4 3,677 3 1 815.9
2003 Q3 3,329 2 1 600.8
2003 Q2 3,359 3 2 893.1
2003 Q1 3,007 0 0 0.0
2002 Q4 3,022 0 0 0.0
2002 Q3 2,571 0 0 0.0
2002 Q2 2,408 12 3 4983.4
2002 Q1 2,001 0 0 0.0
2001 Q4 1,899 0 0 0.0
2001 Q3 2,360 0 0 0.0
2001 Q2 2,078 0 0 0.0
2001 Q1 1,741 2 0 1148.8
2000 Q4 1,388 5 2 3602.3
2000 Q3 1,820 0 0 0.0
2000 Q2 1,654 4 2 2418.4
2000 Q1 1,481 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2016 · 1 incident

March 15, 2016 CO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Elam Sand and Gravel · Struck by... (Not Elsewhere Classified)

Employee was repairing the lower step on front end loader. EE was using a utility knife to cut a section of conveyor belting to the proper size for repair. During the process of cutting the employee was using the utility knife in a drawing motion towards body. The knife slipped in the cutting process and in doing so created a puncture wound to the right thigh of the employee.

2008 · 1 incident

October 28, 2008 CO · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Sandco Inc · Struck against stationary object

The levers surrounding the shut off lever on the oxygen tank kept hitting the right thumb nail, seperating the nail from the bed a bit, leading to an infection from the dirt and grease. We are looking into extensions for the shut off lever.

2006 · 1 incident

February 23, 2006 CO · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Sandco Inc · Struck by... (Not Elsewhere Classified)

EE was @ the pit cleaning up the loading dock which had old lumber he was placeing the old lumber in the loader bucket and when he placed another piece the one he had just place jabbed the palm of his right hand with a rusty nail he not see.

2004 · 1 incident

March 1, 2004 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
Sandco Inc · Struck against stationary object

EE WAS CARRYING A SMALL MOTOR FROM THE BACK OF THE SHOP TO THE FRONT OF THE SHOP. HE STEPPED ON ON ICY STEEL BEAM AND TWISTED HIS BACK. THIS WAS DONE AT THE MECHANICS' SHOP BY THE MINING.

For insurers, brokers, and safety consultants

The full compliance file on Washplant 4

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.