Mining Incidents

Sierra Blanca Quarry Metal/Non-Metal

Sierra Blanca, Hudspeth County, TX  ·  Active
MSHA Mine ID: 4104680

Sierra Blanca Quarry has $26K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Sierra Blanca Quarry.

Fatalities
0
Total incidents
3
Years on record
2009–2018
Latest incident
Aug 2018
Compliance record
MSHA citations since 2008
100
citations
27
significant & substantial
$26,174
proposed penalties
$26,060
paid to date
100% of proposed penalties paid to date, a $114 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
52
inspections on record
810
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: 810 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Sierra Blanca Quarry has $26K in proposed MSHA penalties and $0 outstanding across 2 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.
$26K
proposed penalties
$26K
current assessed
$26K
paid to date
$0
outstanding
99 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2025-07-23.
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 6,814 0 0 0.0
2025 Q3 6,894 2 0 290.1
2025 Q2 7,004 0 0 0.0
2025 Q1 7,260 5 0 688.7
2024 Q4 4,557 0 0 0.0
2024 Q3 844 1 0 1184.8
2024 Q2 2,140 0 0 0.0
2024 Q1 6,994 0 0 0.0
Show 66 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,090 2 0 282.1
2023 Q3 2,496 1 0 400.6
2023 Q2 6,932 1 1 144.3
2023 Q1 7,195 0 0 0.0
2022 Q4 6,747 0 0 0.0
2022 Q3 6,503 0 0 0.0
2022 Q2 6,894 4 0 580.2
2022 Q1 6,652 0 0 0.0
2021 Q4 6,428 0 0 0.0
2021 Q3 6,507 1 0 153.7
2021 Q2 5,822 0 0 0.0
2021 Q1 5,682 0 0 0.0
2020 Q4 5,440 2 1 367.6
2020 Q3 5,664 0 0 0.0
2020 Q2 5,480 1 0 182.5
2020 Q1 5,215 0 0 0.0
2019 Q4 4,716 2 1 424.1
2019 Q3 4,376 0 0 0.0
2019 Q2 4,723 1 0 211.7
2019 Q1 4,778 1 0 209.3
2018 Q4 4,686 0 0 0.0
2018 Q3 4,210 2 0 475.1
2018 Q2 6,120 0 0 0.0
2018 Q1 6,444 1 1 155.2
2017 Q4 5,808 0 0 0.0
2017 Q3 7,018 1 1 142.5
2017 Q2 5,536 0 0 0.0
2017 Q1 7,291 2 1 274.3
2016 Q4 6,743 0 0 0.0
2016 Q3 7,523 3 1 398.8
2016 Q2 6,684 0 0 0.0
2016 Q1 7,225 8 2 1107.3
2015 Q4 8,668 0 0 0.0
2015 Q3 4,569 3 0 656.6
2015 Q2 8,256 0 0 0.0
2015 Q1 9,439 7 2 741.6
2014 Q4 9,766 0 0 0.0
2014 Q3 6,335 3 1 473.6
2014 Q2 5,631 0 0 0.0
2014 Q1 8,416 3 0 356.5
2013 Q4 8,828 0 0 0.0
2013 Q3 9,212 0 0 0.0
2013 Q2 9,044 4 1 442.3
2013 Q1 8,607 4 1 464.7
2012 Q4 8,647 0 0 0.0
2012 Q3 9,424 5 3 530.6
2012 Q2 9,132 0 0 0.0
2012 Q1 7,959 1 0 125.6
2011 Q4 7,627 0 0 0.0
2011 Q3 6,436 5 1 776.9
2011 Q2 9,045 0 0 0.0
2011 Q1 7,590 3 2 395.3
2010 Q4 7,411 0 0 0.0
2010 Q3 8,462 3 2 354.5
2010 Q2 8,104 0 0 0.0
2010 Q1 9,255 1 0 108.0
2009 Q4 6,245 0 0 0.0
2009 Q3 8,231 9 3 1093.4
2009 Q2 8,985 0 0 0.0
2009 Q1 7,459 3 1 402.2
2008 Q4 7,488 0 0 0.0
2008 Q3 7,893 2 0 253.4
2008 Q2 8,001 2 1 250.0
2008 Q1 7,088 0 0 0.0
2007 Q4 3,896 0 0 0.0
2007 Q3 0 0 0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2018 · 1 incident

August 27, 2018 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Sierra Blanca Quarry, LLC · Fall to lower level, (Not Elsewhere Classified)

Employee climbed over a barricade and travelled in a non-designated area. Employee was stepping over a gap between a retaining wall and a primary jaw crusher and did not step far enough. The height from the top of the wall to the floor is approx. 11 ft. The employee stated bifocal sunglasses made employee misjudge the distance employee needed to step.

2011 · 1 incident

May 16, 2011 TX · Metal/Non-Metal welder (shop) MACHINERY
Sierra Blanca Quarry, LLC · Struck by... (Not Elsewhere Classified)

EE was in shop dismounting a chute from a crusher. He was using an impact wrench to take off a nut from a carriage bolt, while holding head with his right hand. He pushed the trigger on the impact wrench and the locking part of bolt popped out of place. This cause the head to spin fast and cut through glove and into finger.

2009 · 1 incident

September 23, 2009 TX · Metal/Non-Metal assistant mine foreman, assistant mine manager SLIP OR FALL OF PERSON
Sierra Blanca Quarry, LLC · Fall from machine

Injury Was inspecting the scalping screen and under jaw belt wiper. He was steppeing from the screen to the belt, slipped, and striking the end of the production 2 belt with hes back and then falling to the ground. He fractured his T2 - T5 vertebra and a right tibial contusion and knee sprain.

For insurers, brokers, and safety consultants

The full compliance file on Sierra Blanca Quarry

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.