85% of proposed penalties paid to date, a $163,097 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1,724
inspections on record
42,035
inspection hours
8.0
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.
3,368 citations across 42,035 inspection hours.
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.
$1.1M
proposed penalties
$931K
current assessed
$929K
paid to date
$2K
outstanding
3,320 assessments are final orders; 170 contested dockets.
As of the most recent assessment on 2026-04-24.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
U.S. Silica Company, LLC · Caught in, under or between a moving and a stationary object
Employee was on the ground spotting a dump truck to prepare for dumping a load of fill dirt in excavation area. Employee's back was to the dozer that came up an incline and fatally struck employee from behind.
An employee on the ground level retrieved the tool and climbed 1 to 2 rungs of the ladder to hand the tool to the employee above. The employee appeared to lose consciousness and fell. The witnesses indicated that it appeared the victim was breathing. At 12:01pm, US Silica was informed that the victim had a heart attack and while at the hospital the employee died.
Watch this operator
Email me when a new MSHA incident is filed at any U.S. Silica Company, LLC mine.
For insurers, brokers, and safety consultants
The full compliance file on U.S. Silica Company, 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.