Mining Incidents

PUERTO RICO ASPHALT-BAYAMON: 65 MSHA citations Metal/Non-Metal

Controlled by Jorge A Diaz-Mayoral
Bayamon, Bayamon County, PR  ·  Active
MSHA Mine ID: 5400096

PUERTO RICO ASPHALT-BAYAMON has $28K in proposed MSHA penalties and $5K outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2017
65
citations
28
significant & substantial
$28,473
proposed penalties
$14,606
paid to date
51% of proposed penalties paid to date, a $13,867 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
67
inspections on record
601
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: 601 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

PUERTO RICO ASPHALT-BAYAMON has $28K in proposed MSHA penalties and $5K outstanding across 3 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
$19K
current assessed
$15K
paid to date
$5K
outstanding
61 assessments are final orders; 3 contested dockets.
Of $10K in penalties contested before the Commission, $918 was upheld in final decisions.
As of the most recent assessment on 2025-12-17.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
43.1%
significant & substantial
6.2%
high negligence or reckless
43.1%
reasonably likely or greater
86.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.6% low, 89.2% moderate, 6.2% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
9 citations taken to the federal commission · 14% of citations on record
  • Settled 5 · 56%
  • Still open 4 · 44%
50%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 2 decided S&S contests · industry: 79%
91%
Penalty reduction in decided contests
$10K proposed, $918 after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2026-05-18.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
SE 2025-0157 Settlement Young 2026 $10K → $795
SE 2021-0001 Settlement 2021 $123 → $123
SE 2026-0104 Decision pending
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2026-04-15
0%
of limit-tested samples over the exposure limit
10
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz5
  • Nuisance dust, total, <1% Qtz4
  • Respirable dust, <.1mg1
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-04-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2026-04-15 Quartz, respirable, >1% Qtz 0.28 Cleanup Man
2025-12-18 Nuisance dust, total, <1% Qtz 0.26 10 0.03 Front-end Loader Operator
2025-12-18 Nuisance dust, total, <1% Qtz 0.16 10 0.02 Truck Driver
2025-12-18 Nuisance dust, total, <1% Qtz 0 10 0.00 Supervisor, Co. Official
2025-06-03 Quartz, respirable, >1% Qtz 0.14 Crusher Oper/Worker
2025-06-03 Quartz, respirable, >1% Qtz 1.03 1.52 0.68 Laborer, Bullgang
2019-08-06 Nuisance dust, total, <1% Qtz 0 10 0.00 Truck Driver
2019-08-06 Quartz, respirable, >1% Qtz 0.39 Backhoe Operator
2019-08-06 Quartz, respirable, >1% Qtz 0.34 Crusher Oper/Worker
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

PUERTO RICO ASPHALT-BAYAMON recorded 5.67 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
5.67
total case rate
5.67
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Puerto Rico, metal and nonmetal mining averaged 2.64 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 5.67 5.67 0.000
2024 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Ramos Hermanos Inc 1950 to 2017
  2. Cantera Metro LLC 2017 to 2018
  3. Bayamon Aggregates & Recycling, Inc. 2018 to 2023
  4. PUERTO RICO ASPHALT LLC 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 11
2025 13
2024 9
2023 9
2022 9
2021 8
2020 7
2019 5
2018 2
2017 2
Source: MSHA quarterly employment and production, updated weekly.

PUERTO RICO ASPHALT-BAYAMON sits in Bayamón Municipio, Puerto Rico, where the Census mining category is 0.0% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Bayamón Municipio, Puerto Rico · Population 183,456
0.0%
Mining share of county employment
$30,729
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2026 Q1 5,080 0 0 0.0
2025 Q4 7,354 1 0 136.0
2025 Q3 8,869 8 7 902.0
2025 Q2 9,833 4 1 406.8
2025 Q1 9,244 10 9 1081.8
2024 Q4 6,357 0 0 0.0
2024 Q3 6,057 2 1 330.2
2024 Q2 5,660 0 0 0.0
Show 26 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 5,848 2 1 342.0
2023 Q4 2,976 0 0 0.0
2023 Q3 3,178 0 0 0.0
2023 Q2 3,698 1 0 270.4
2023 Q1 3,396 0 0 0.0
2022 Q4 3,662 0 0 0.0
2022 Q3 3,158 0 0 0.0
2022 Q2 3,180 1 0 314.5
2022 Q1 3,481 1 0 287.3
2021 Q4 4,059 0 0 0.0
2021 Q3 4,074 0 0 0.0
2021 Q2 3,497 4 2 1143.8
2021 Q1 3,670 0 0 0.0
2020 Q4 3,873 9 2 2323.8
2020 Q3 3,586 2 1 557.7
2020 Q2 1,978 0 0 0.0
2020 Q1 3,973 7 3 1761.9
2019 Q4 3,737 0 0 0.0
2019 Q3 3,119 0 0 0.0
2019 Q2 1,960 2 0 1020.4
2019 Q1 1,804 1 0 554.3
2018 Q4 240 0 0 0.0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 1,114 4 0 3590.7
2017 Q2 1,495 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2025 · 1 incident

August 19, 2025 PR · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler POWERED HAULAGE
PUERTO RICO ASPHALT LLC · Fall to lower level, (Not Elsewhere Classified)

El minero estaba limpiando con una barra de hierro el rodillo de la correa en movimiento.La barra se atascó entre el "drum pulley" y la polea. Fue expulsado de la plataforma cayendo al suelo a 8'aprox. Llamó por teléfono a otro empleado para ayuda, y de inmediato los mineros fueron a socorrerlo llamando la ambulancia, el cual lo trasladó al Hospital.