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MENCENBERG QUARRY Metal/Non-Metal

Schmidt Aggregates · Surface
Controlled by Edward C Levy Jr
Castle Rock, Douglas County, CO  ·  Intermittent
MSHA Mine ID: 0504618

MENCENBERG QUARRY has $81K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
11
Years on record
1998–2015
Latest incident
Jul 2015
Compliance record
MSHA citations since 2000
144
citations
38
significant & substantial
$80,774
proposed penalties
$80,424
paid to date
100% of proposed penalties paid to date, a $350 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
53
inspections on record
677
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: 677 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

MENCENBERG QUARRY has $81K in proposed MSHA penalties and $0 outstanding across 1 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.
$81K
proposed penalties
$80K
current assessed
$80K
paid to date
$0
outstanding
143 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2025-11-04.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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 257 2 0 7782.1
2025 Q3 370 0 0 0.0
2023 Q3 0 0 0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 0 0 0
2022 Q2 1,224 0 0 0.0
Show 89 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q1 3,276 0 0 0.0
2021 Q4 3,416 4 0 1171.0
2021 Q3 4,247 0 0 0.0
2021 Q2 3,571 1 0 280.0
2021 Q1 3,217 0 0 0.0
2020 Q4 3,319 8 3 2410.4
2020 Q3 4,214 0 0 0.0
2020 Q2 4,629 9 3 1944.3
2020 Q1 4,637 0 0 0.0
2019 Q4 4,440 1 0 225.2
2019 Q3 4,680 1 0 213.7
2019 Q2 3,632 0 0 0.0
2019 Q1 2,499 0 0 0.0
2018 Q4 2,966 0 0 0.0
2018 Q3 3,419 1 0 292.5
2018 Q2 4,152 0 0 0.0
2018 Q1 3,197 0 0 0.0
2017 Q4 3,384 2 0 591.0
2017 Q3 3,606 0 0 0.0
2017 Q2 3,252 6 2 1845.0
2017 Q1 2,973 0 0 0.0
2016 Q4 3,107 8 4 2574.8
2016 Q3 3,403 0 0 0.0
2016 Q2 2,974 11 4 3698.7
2016 Q1 3,331 7 1 2101.5
2015 Q4 1,891 0 0 0.0
2015 Q3 3,524 0 0 0.0
2015 Q2 3,467 15 5 4326.5
2015 Q1 2,363 0 0 0.0
2014 Q4 2,662 0 0 0.0
2014 Q3 3,080 1 0 324.7
2014 Q2 2,780 0 0 0.0
2014 Q1 2,574 2 0 777.0
2013 Q4 2,936 0 0 0.0
2013 Q3 2,620 0 0 0.0
2013 Q2 1,878 2 1 1065.0
2013 Q1 1,889 3 0 1588.1
2012 Q4 1,873 0 0 0.0
2012 Q3 1,793 0 0 0.0
2012 Q2 1,124 0 0 0.0
2012 Q1 1,276 0 0 0.0
2011 Q4 1,945 0 0 0.0
2011 Q3 1,723 0 0 0.0
2011 Q2 1,510 0 0 0.0
2011 Q1 1,384 2 0 1445.1
2010 Q4 1,253 0 0 0.0
2010 Q3 1,459 0 0 0.0
2010 Q2 1,480 0 0 0.0
2010 Q1 1,502 0 0 0.0
2009 Q4 1,476 0 0 0.0
2009 Q3 2,419 0 0 0.0
2009 Q2 1,468 3 0 2043.6
2009 Q1 608 0 0 0.0
2008 Q4 2,068 2 0 967.1
2008 Q3 2,915 0 0 0.0
2008 Q2 3,224 2 0 620.3
2008 Q1 2,787 3 0 1076.4
2007 Q4 4,386 0 0 0.0
2007 Q3 3,509 8 4 2279.9
2007 Q2 3,757 0 0 0.0
2007 Q1 3,230 0 0 0.0
2006 Q4 3,519 0 0 0.0
2006 Q3 2,813 0 0 0.0
2006 Q2 3,241 0 0 0.0
2006 Q1 3,226 5 2 1549.9
2005 Q4 3,059 0 0 0.0
2005 Q3 3,149 6 0 1905.4
2005 Q2 3,416 0 0 0.0
2005 Q1 2,628 0 0 0.0
2004 Q4 2,691 0 0 0.0
2004 Q3 2,906 0 0 0.0
2004 Q2 2,569 0 0 0.0
2004 Q1 2,120 15 7 7075.5
2003 Q4 2,740 0 0 0.0
2003 Q3 2,428 3 0 1235.6
2003 Q2 1,474 0 0 0.0
2003 Q1 1,568 1 0 637.8
2002 Q4 2,357 4 1 1697.1
2002 Q3 1,855 0 0 0.0
2002 Q2 2,885 0 0 0.0
2002 Q1 3,525 0 0 0.0
2001 Q4 3,864 2 0 517.6
2001 Q3 3,686 0 0 0.0
2001 Q2 3,836 0 0 0.0
2001 Q1 5,712 0 0 0.0
2000 Q4 3,722 0 0 0.0
2000 Q3 4,455 0 0 0.0
2000 Q2 4,560 4 1 877.2
2000 Q1 3,582 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

11 on file

2015 · 1 incident

July 7, 2015 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Schmidt Aggregates · Struck by... (Not Elsewhere Classified)

A rock hit the employee's hard hat and then his right shoulder. Employee was taken to the hospital treated and released with no major injuries.

2008 · 1 incident

May 23, 2008 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DISORDERS (REPEATED TRAUMA)
Schmidt Aggregates · Over-exertion (Not Elsewhere Classified)

EE claimed of pain in her R. wrist. An evaluation was done to determine the cause of pain, she has carpel tunnel in her R. wrist.

2002 · 2 incidents

August 8, 2002 CO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Schmidt Aggregates · Fall onto or against objects

EMPLOYEE SLIPPED GETTING DOWN FROM LOADER & FELL BACKWARDS, HITTING HIS HEAD ON THE TIRE OF ANOTHER PARKER LOADER.

February 26, 2002 CO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Schmidt Aggregates · Rubbed or abraded

EE WAS HELPING TO CHANGE SCREENS AND WAS CRAWLING AROUND UNDER THE TOP SCREEN WHEN HE FELT HIS KNEE POP. EE PLACED ON RESTRICTED DUTY.

2000 · 4 incidents

November 16, 2000 CO · Metal/Non-Metal miner, nec HANDTOOLS (NONPOWERED)
Schmidt Aggregates · Struck by flying object

EMPLOYEE WAS SPLITTING A ROCK WHEN A PIECE OF THE ROCK FLEW BACK AT HIM AND STRUCK HIM ON THE LIP.

October 20, 2000 CO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Schmidt Aggregates · Over-exertion (Not Elsewhere Classified)

EE FELT PAIN IN WRIST AS HE WAS PERFORMING MAINTENANCE WORK ON PLANT.

September 7, 2000 CO · Metal/Non-Metal miner, nec HANDTOOLS (NONPOWERED)
Schmidt Aggregates · Struck by... (Not Elsewhere Classified)

EE IS A STONE CUTTER. IN SPLITTING A ROCK, 1/2 OF PIECE FELL ON EMPLOYEE'S LEG, INJURING THE KNEE.

May 3, 2000 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Schmidt Aggregates · Caught in, under or between (Not Elsewhere Classified)

EE WAS HELPING TO CHANGE OUT SCREENS WHEN THE TOP SCREEN SLIPPED, CAUSING HIS LEFT THUMB TO BE PINCHED.. THE DR. PLACED HIM ON RESTRICTED DUTY UNTIL THE NEXT VISIT.

1998 · 3 incidents

December 9, 1998 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
Schmidt Aggregates · (Not Elsewhere Classified)

THE EE REPORTED THAT WHEN HE REMOVED HIS EARPLUGS AT THE END OF HIS SHIFT HE NOTICED A LOSS OF HEARING IN HIS LEFT EAR. THE EE OPERATES A CAT LOADER WITH A SOUNDPROOF CAB AND IS REQUIRED TO WE AR EARPLUGS DURING OPERATION.

August 7, 1998 CO · Metal/Non-Metal POWERED HAULAGE
Schmidt Aggregates · Caught in, under or between (Not Elsewhere Classified)

THE EE WAS WORKING ON A CONVEYOR WHEN HIS HANDS WERE CAUGHT IN THE CONVEYOR. BOTH HANDS WERE BRUISED AND SCRAPED.

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The full compliance file on MENCENBERG QUARRY

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