Rio Medina Operations has $5K in proposed MSHA penalties and $1K outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
3
Years on record
2023–2024
Latest incident
Dec 2024
Compliance record
MSHA citations since 2017
34
citations
1
significant & substantial
$5,236
proposed penalties
$3,678
paid to date
70% of proposed penalties paid to date, a $1,558 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
24
inspections on record
342
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: 342 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Rio Medina Operations has $5K in proposed MSHA penalties and $1K outstanding across 4 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.
$5K
proposed penalties
$5K
current assessed
$4K
paid to date
$1K
outstanding
22 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-02-18.
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
8,877
0
0
0.0
2025 Q3
9,869
2
0
202.7
2025 Q2
10,835
0
0
0.0
2025 Q1
9,641
3
0
311.2
2024 Q4
10,968
0
0
0.0
2024 Q3
9,859
0
0
0.0
2024 Q2
13,798
0
0
0.0
2024 Q1
13,783
3
1
217.7
Show 26 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
8,739
0
0
0.0
2023 Q3
9,192
1
0
108.8
2023 Q2
7,906
0
0
0.0
2023 Q1
8,763
0
0
0.0
2022 Q4
8,655
2
0
231.1
2022 Q3
8,015
3
0
374.3
2022 Q2
7,383
0
0
0.0
2022 Q1
6,805
0
0
0.0
2021 Q4
7,347
1
0
136.1
2021 Q3
8,924
0
0
0.0
2021 Q2
8,103
1
0
123.4
2021 Q1
6,719
0
0
0.0
2020 Q4
7,324
0
0
0.0
2020 Q3
7,702
0
0
0.0
2020 Q2
6,596
1
0
151.6
2020 Q1
6,104
0
0
0.0
2019 Q4
6,010
0
0
0.0
2019 Q3
4,868
0
0
0.0
2019 Q2
4,349
0
0
0.0
2019 Q1
5,226
1
0
191.4
2018 Q4
4,239
0
0
0.0
2018 Q3
4,811
1
0
207.9
2018 Q2
4,986
0
0
0.0
2018 Q1
4,379
4
0
913.5
2017 Q4
4,762
1
0
210.0
2017 Q3
3,247
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2024 · 1 incident
December 13, 2024TX · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON
Operator was dismounting / stepping down from a CAT Loader and when their right ankle stepped down on the ground, the operator felt a pop and couldn't put weight on it. The loader was parked on level ground with dry conditions.
2023 · 2 incidents
October 27, 2023TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee was working inside the cab of a bulldozer. Rain started so the employee quickly shut the doors on the bulldozer & began to dismount using three points of contact. Employee's right foot slipped on the blade push arm, causing the employee to fall. The employee came to rest on the bulldozer push arm with legs straddling each side, causing contusion to legs & lower back.
Assistant manager was notified of an approaching wildfire to the southeast of the location. The fire was stopped approx. 1/4 mile from mine property. The fire never contacted Capitol property. In an abundance of caution MSHA was contacted via the emergency line and notified of the approaching fire.
For insurers, brokers, and safety consultants
The full compliance file on Rio Medina Operations
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.