Mining Incidents

M-R Aggregates Metal/Non-Metal

M-R Aggregates · Surface
Controlled by Marc Lopez
Rio Grande, Starr County, TX  ·  Active
MSHA Mine ID: 4104545

M-R Aggregates has $122K in proposed MSHA penalties and $29K outstanding across 2 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at M-R Aggregates.

Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2006
160
citations
49
significant & substantial
$121,923
proposed penalties
$92,768
paid to date
76% of proposed penalties paid to date, a $29,155 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
61
inspections on record
758
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: 758 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

M-R Aggregates has $122K in proposed MSHA penalties and $29K outstanding across 2 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.
$122K
proposed penalties
$122K
current assessed
$93K
paid to date
$29K
outstanding
159 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2025-07-16.
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 5,435 0 0 0.0
2025 Q3 5,370 4 0 744.9
2025 Q2 5,850 0 0 0.0
2025 Q1 5,660 3 0 530.0
2024 Q4 5,700 0 0 0.0
2024 Q3 5,390 2 0 371.1
2024 Q2 5,320 0 0 0.0
2024 Q1 5,115 2 1 391.0
Show 73 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 5,185 0 0 0.0
2023 Q3 5,430 1 0 184.2
2023 Q2 5,685 0 0 0.0
2023 Q1 5,600 0 0 0.0
2022 Q4 5,970 1 0 167.5
2022 Q3 6,025 0 0 0.0
2022 Q2 5,610 1 0 178.3
2022 Q1 5,985 2 0 334.2
2021 Q4 6,495 0 0 0.0
2021 Q3 6,455 0 0 0.0
2021 Q2 6,420 1 0 155.8
2021 Q1 6,445 0 0 0.0
2020 Q4 6,210 2 0 322.1
2020 Q3 5,635 0 0 0.0
2020 Q2 5,465 2 1 366.0
2020 Q1 5,490 0 0 0.0
2019 Q4 5,180 1 0 193.1
2019 Q3 6,500 1 0 153.8
2019 Q2 6,065 0 0 0.0
2019 Q1 5,760 1 0 173.6
2018 Q4 5,700 0 0 0.0
2018 Q3 5,200 0 0 0.0
2018 Q2 6,328 2 1 316.1
2018 Q1 6,260 0 0 0.0
2017 Q4 6,605 3 2 454.2
2017 Q3 7,290 0 0 0.0
2017 Q2 7,200 6 2 833.3
2017 Q1 6,160 0 0 0.0
2016 Q4 6,705 2 1 298.3
2016 Q3 6,970 0 0 0.0
2016 Q2 6,372 3 1 470.8
2016 Q1 5,093 0 0 0.0
2015 Q4 4,645 6 3 1291.7
2015 Q3 4,760 0 0 0.0
2015 Q2 5,140 2 2 389.1
2015 Q1 4,240 5 1 1179.2
2014 Q4 5,280 0 0 0.0
2014 Q3 5,150 0 0 0.0
2014 Q2 5,110 5 2 978.5
2014 Q1 5,212 0 0 0.0
2013 Q4 4,580 12 6 2620.1
2013 Q3 4,760 0 0 0.0
2013 Q2 4,400 4 1 909.1
2013 Q1 5,040 0 0 0.0
2012 Q4 5,200 2 1 384.6
2012 Q3 5,545 0 0 0.0
2012 Q2 5,700 9 2 1578.9
2012 Q1 4,670 8 1 1713.1
2011 Q4 5,000 0 0 0.0
2011 Q3 5,050 0 0 0.0
2011 Q2 4,970 8 3 1609.7
2011 Q1 5,015 0 0 0.0
2010 Q4 5,620 6 2 1067.6
2010 Q3 6,700 0 0 0.0
2010 Q2 6,880 15 6 2180.2
2010 Q1 3,600 0 0 0.0
2009 Q4 5,240 9 2 1717.6
2009 Q3 5,640 0 0 0.0
2009 Q2 7,340 3 1 408.7
2009 Q1 6,450 6 2 930.2
2008 Q4 7,040 0 0 0.0
2008 Q3 7,855 0 0 0.0
2008 Q2 7,255 3 1 413.5
2008 Q1 6,928 3 1 433.0
2007 Q4 6,870 0 0 0.0
2007 Q3 6,550 6 1 916.0
2007 Q2 6,350 0 0 0.0
2007 Q1 5,000 5 0 1000.0
2006 Q4 5,400 0 0 0.0
2006 Q3 5,700 0 0 0.0
2006 Q2 6,100 0 0 0.0
2006 Q1 6,720 3 2 446.4
2005 Q4 600 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.

For insurers, brokers, and safety consultants

The full compliance file on M-R Aggregates

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.