Mining Incidents

Sierra Blanca Quarry, LLC operator

MSHA operator ID: 0082806
Fatalities
0
Total incidents
3
Mines on record
1
Years on record
2009–2018
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.
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.

Top causes

Incident timeline

2018
1
2011
1
2009
1

Mines on record

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The full compliance file on Sierra Blanca Quarry, LLC

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.