OnCore 1 has $28K in proposed MSHA penalties and $948 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
7
Years on record
2022–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2021
67
citations
13
significant & substantial
$28,397
proposed penalties
$27,449
paid to date
97% of proposed penalties paid to date, a $948 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2021
22
inspections on record
279
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: 279 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
OnCore 1 has $28K in proposed MSHA penalties and $948 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.
$28K
proposed penalties
$28K
current assessed
$27K
paid to date
$948
outstanding
62 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-19.
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
There was very hot temperatures in West Texas on this day. The temperature was 103 degrees at time of the incident. Employees Air conditioner was not properly working throughout the day in the Haul truck. The heat caused the employer to pull over on the side of the haul road, where 30 minutes later EE was found passed out from heat.
2025 · 1 incident
January 17, 2025TX · Metal/Non-Metalmine manager, mine foreman, mine ownerMACHINERY
Employee was utilizing a grinder to cut a bearing sleeve. This task was necessary to replace the bearing on the head pulley of the C1 belt. Midway through the task, the grinder unexpectedly kicked back towards the employee, causing the grinder's disk to make contact with the employee's left forearm resulting in a laceration.
2023 · 2 incidents
August 25, 2023TX · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerOTHER
Individual was greasing excavator prior to working and outdoor conditions were windy and dry. EE recalls sand blowing into right eye. EE attempted to wipe it away and believed EE had done so. Reported to manager on 28 Aug as EE felt EE needed to get medical attention to the eye.
March 13, 2023TX · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
While replacing a damaged digger tooth on excavator bucket, as hammer was swung it impacted corner of tooth and broke off and entered right hand between thumb and index finger (Crotch of hand).
While climbing down the ladder, IP right foot slipped off the last step (rung) on the ladder. IP attempted to catch self resulting in a strain to EE's right elbow. Incident occurred on 06/28/22, reported on 06/29/2022 First Aid Case. Seen by MD on 07/06/2022.
Employee fell on frozen ground landing on their side resulting in a shoulder strain.
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A dated report covering the 26-year penalty trail, line-item violation pattern, contest and
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with the underlying data as CSV.