Mining Incidents

Rio Materials Metal/Non-Metal

Rio Materials · Surface
Controlled by Pedro Ivan Delgado
La Grange, Fayette County, TX  ·  Active
MSHA Mine ID: 4105157

Rio Materials has $32K in proposed MSHA penalties and $453 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2016
92
citations
27
significant & substantial
$31,759
proposed penalties
$31,306
paid to date
99% of proposed penalties paid to date, a $453 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2016
28
inspections on record
417
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: 417 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 Materials has $32K in proposed MSHA penalties and $453 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.
$32K
proposed penalties
$32K
current assessed
$31K
paid to date
$453
outstanding
81 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-29.
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 6,191 2 0 323.0
2025 Q3 6,891 3 1 435.4
2025 Q2 6,632 0 0 0.0
2025 Q1 5,203 3 1 576.6
2024 Q4 6,800 0 0 0.0
2024 Q3 7,701 0 0 0.0
2024 Q2 8,151 0 0 0.0
2024 Q1 8,403 0 0 0.0
Show 32 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 8,403 0 0 0.0
2023 Q3 10,073 3 1 297.8
2023 Q2 8,408 2 0 237.9
2023 Q1 7,433 0 0 0.0
2022 Q4 6,401 0 0 0.0
2022 Q3 8,602 9 4 1046.3
2022 Q1 9,822 0 0 0.0
2021 Q4 9,300 1 0 107.5
2021 Q3 7,077 2 2 282.6
2021 Q2 8,700 0 0 0.0
2021 Q1 6,700 0 0 0.0
2020 Q4 8,200 4 1 487.8
2020 Q3 6,989 1 0 143.1
2020 Q2 6,861 0 0 0.0
2020 Q1 5,800 3 1 517.2
2019 Q4 4,900 0 0 0.0
2019 Q3 5,690 13 5 2284.7
2019 Q2 4,182 0 0 0.0
2019 Q1 4,355 0 0 0.0
2018 Q4 3,022 3 2 992.7
2018 Q3 5,750 2 0 347.8
2018 Q2 6,207 0 0 0.0
2018 Q1 5,408 2 1 369.8
2017 Q4 5,174 0 0 0.0
2017 Q3 5,219 0 0 0.0
2017 Q2 5,446 2 0 367.2
2017 Q1 5,649 0 0 0.0
2016 Q4 5,620 3 1 533.8
2016 Q3 5,671 0 0 0.0
2016 Q2 4,359 0 0 0.0
2016 Q1 3,910 24 5 6138.1
2015 Q4 2,885 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.

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The full compliance file on Rio Materials

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.