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Montecielo Quarry LLC Metal/Non-Metal

BLUE ROCK INC · Surface
Guaynabon, Bayamon County, PR  ·  Active
MSHA Mine ID: 5400461

Montecielo Quarry LLC has $115K in proposed MSHA penalties and $32K outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2023–2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2005
246
citations
68
significant & substantial
$114,955
proposed penalties
$83,065
paid to date
72% of proposed penalties paid to date, a $31,890 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
154
inspections on record
1,328
inspection hours
18.5
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.
246 citations across 1,328 inspection hours.
Source: MSHA inspections data, updated weekly.

Montecielo Quarry LLC has $115K in proposed MSHA penalties and $32K 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.
$115K
proposed penalties
$115K
current assessed
$83K
paid to date
$32K
outstanding
233 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-28.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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 4,260 7 3 1643.2
2025 Q3 3,157 6 2 1900.5
2025 Q2 3,417 1 0 292.7
2025 Q1 3,312 8 5 2415.5
2024 Q4 4,051 0 0 0.0
2024 Q3 4,589 3 0 653.7
2024 Q2 4,248 0 0 0.0
2024 Q1 4,278 14 4 3272.6
Show 74 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 4,603 0 0 0.0
2023 Q3 4,331 15 1 3463.4
2023 Q2 5,001 0 0 0.0
2023 Q1 4,395 11 1 2502.8
2022 Q4 4,808 0 0 0.0
2022 Q3 4,582 7 1 1527.7
2022 Q2 4,465 0 0 0.0
2022 Q1 4,574 5 1 1093.1
2021 Q4 3,098 0 0 0.0
2021 Q3 3,731 4 1 1072.1
2021 Q2 4,438 0 0 0.0
2021 Q1 3,585 5 1 1394.7
2020 Q4 4,180 6 2 1435.4
2020 Q3 3,391 10 3 2949.0
2020 Q2 2,681 0 0 0.0
2020 Q1 4,199 12 3 2857.8
2019 Q4 5,374 2 0 372.2
2019 Q3 4,816 17 5 3529.9
2019 Q2 3,744 1 0 267.1
2019 Q1 4,435 9 3 2029.3
2018 Q4 5,295 0 0 0.0
2018 Q3 4,377 3 0 685.4
2018 Q2 4,882 0 0 0.0
2018 Q1 3,852 4 2 1038.4
2017 Q4 3,908 0 0 0.0
2017 Q3 3,356 4 1 1191.9
2017 Q2 3,950 1 0 253.2
2017 Q1 2,349 4 1 1702.9
2016 Q4 3,515 0 0 0.0
2016 Q3 2,626 3 1 1142.4
2016 Q2 2,052 0 0 0.0
2016 Q1 2,481 6 2 2418.4
2015 Q4 3,291 0 0 0.0
2015 Q3 3,364 2 1 594.5
2015 Q2 3,429 0 0 0.0
2015 Q1 3,187 0 0 0.0
2014 Q4 4,193 7 2 1669.4
2014 Q3 3,997 6 2 1501.1
2014 Q2 4,988 0 0 0.0
2014 Q1 2,213 0 0 0.0
2013 Q4 2,517 7 5 2781.1
2013 Q3 2,538 0 0 0.0
2013 Q2 2,708 4 0 1477.1
2013 Q1 2,452 0 0 0.0
2012 Q4 1,567 4 1 2552.6
2012 Q2 988 0 0 0.0
2012 Q1 3,199 5 2 1563.0
2011 Q4 3,934 0 0 0.0
2011 Q3 3,694 0 0 0.0
2011 Q2 3,648 3 0 822.4
2011 Q1 3,781 0 0 0.0
2010 Q4 2,938 4 1 1361.5
2010 Q3 2,887 0 0 0.0
2010 Q2 3,052 4 1 1310.6
2010 Q1 3,338 0 0 0.0
2009 Q4 5,952 3 0 504.0
2009 Q3 6,368 0 0 0.0
2009 Q2 6,605 1 0 151.4
2009 Q1 7,224 1 0 138.4
2008 Q4 8,710 4 2 459.2
2008 Q3 8,546 0 0 0.0
2008 Q2 8,989 3 1 333.7
2008 Q1 9,353 0 0 0.0
2007 Q4 8,750 1 0 114.3
2007 Q3 3,508 3 1 855.2
2007 Q2 3,086 0 0 0.0
2007 Q1 2,757 2 2 725.4
2006 Q4 4,815 0 0 0.0
2006 Q3 2,221 2 1 900.5
2006 Q2 2,274 0 0 0.0
2006 Q1 2,501 1 0 399.8
2005 Q4 1,355 6 1 4428.0
2005 Q3 1,008 0 0 0.0
2005 Q2 369 3 2 8130.1
No fatalities recorded at this mine.

Reportable incidents

2 on file

2025 · 1 incident

August 21, 2025 PR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
BLUE ROCK INC · Struck by... (Not Elsewhere Classified)

EL Señor Jose Valdes se disponia a conectar la correa manualmente cuando se quito el capacete para inclinarsehacia abajo y sufrio un impacto y se percata que una piedra le dio en la cabeza causando una herida abierta.

2023 · 1 incident

September 11, 2023 PR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
BLUE ROCK INC · Struck by flying object

Mechanic opened the door of the 769C such door closed hitting their left shoulder

For insurers, brokers, and safety consultants

The full compliance file on Montecielo Quarry 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.

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