Productora de Agregados Isabela has $56K in proposed MSHA penalties and $14K outstanding across 8 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
4
Years on record
1994–2025
Latest incident
May 2025
Compliance record
MSHA citations since 2000
134
citations
55
significant & substantial
$55,951
proposed penalties
$32,244
paid to date
58% of proposed penalties paid to date, a $23,707 gap.
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: 963 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Productora de Agregados Isabela has $56K in proposed MSHA penalties and $14K outstanding across 8 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.
$56K
proposed penalties
$46K
current assessed
$32K
paid to date
$14K
outstanding
130 assessments are final orders; 8 contested dockets.
Of $42K in penalties contested before the Commission, $32K was upheld in final decisions.
As of the most recent assessment on 2025-10-29.
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.
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.
37citations taken to the federal commission · 28% of citations on record
Settled
34 · 92%
Stood as issued
3 · 8%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 19 decided S&S contests · industry: 79%
24%
Penalty reduction in decided contests
$42K proposed, $32K 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 2014-07-09.
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.
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: 2025-10-30
0%
of limit-tested samples over the exposure limit
7
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Nuisance dust, total, <1% Qtz2
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (7)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-10-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-10-30
Nuisance dust, respirable, <1% Qtz
0.15
10
0.02
Laborer, Bullgang
2023-08-16
Nuisance dust, total, <1% Qtz
5.5
10
0.55
Laborer, Bullgang
2023-08-16
Nuisance dust, total, <1% Qtz
0.5
10
0.05
Crusher Oper/Worker
2010-08-11
Respirable dust, <.1mg
0
Crusher Oper/Worker
2005-08-16
Respirable dust, <.1mg
0
Truck Driver
2003-02-03
Respirable dust, <.1mg
0
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.
Productora de Agregados Isabela recorded 7.29 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.
7.29
total case rate
7.29
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 *
7.29
7.29
0.000
2024 *
13.62
13.62
0.000
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2003 *
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
15
2025
14
2024
14
2023
14
2022
13
2021
12
2020
3
2019
3
2018
4
2017
2
2016
3
2015
4
2014
4
2013
4
2012
3
2011
6
2010
3
2009
3
2008
3
2007
6
2006
6
2005
7
2004
8
2003
10
2002
9
2001
9
2000
9
Source: MSHA quarterly employment and production, updated weekly.
Productora de Agregados Isabela sits in Quebradillas 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.
Quebradillas Municipio, Puerto Rico · Population 23,486
0.0%
Mining share of county employment
$23,624
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 Q2
7,889
0
0
0.0
2026 Q1
5,852
0
0
0.0
2025 Q4
7,386
1
0
135.4
2025 Q3
6,207
0
0
0.0
2025 Q2
7,439
0
0
0.0
2025 Q1
6,404
0
0
0.0
2024 Q4
7,826
1
0
127.8
2024 Q3
6,965
0
0
0.0
Show 88 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
7,900
0
0
0.0
2024 Q1
6,687
1
1
149.5
2023 Q4
7,430
1
0
134.6
2023 Q3
6,145
0
0
0.0
2023 Q2
7,232
0
0
0.0
2023 Q1
6,492
1
0
154.0
2022 Q4
5,918
0
0
0.0
2022 Q3
5,498
0
0
0.0
2022 Q2
6,369
0
0
0.0
2022 Q1
5,602
1
0
178.5
2021 Q4
6,474
0
0
0.0
2021 Q3
5,517
2
0
362.5
2020 Q2
58
0
0
0.0
2020 Q1
85
9
6
105882.4
2019 Q4
267
0
0
0.0
2019 Q3
130
4
1
30769.2
2019 Q2
117
0
0
0.0
2019 Q1
178
5
1
28089.9
2018 Q4
370
0
0
0.0
2018 Q3
260
0
0
0.0
2018 Q2
394
0
0
0.0
2018 Q1
112
0
0
0.0
2017 Q4
0
0
0
2017 Q3
0
0
0
2017 Q2
216
0
0
0.0
2017 Q1
200
4
0
20000.0
2016 Q4
15
0
0
0.0
2016 Q3
200
0
0
0.0
2016 Q2
140
4
0
28571.4
2016 Q1
190
5
0
26315.8
2015 Q4
159
0
0
0.0
2015 Q3
656
0
0
0.0
2015 Q2
420
0
0
0.0
2015 Q1
580
0
0
0.0
2014 Q4
460
0
0
0.0
2014 Q3
480
0
0
0.0
2014 Q2
1,187
0
0
0.0
2014 Q1
1,247
4
3
3207.7
2013 Q4
1,068
0
0
0.0
2013 Q3
922
0
0
0.0
2013 Q2
722
0
0
0.0
2013 Q1
1,187
0
0
0.0
2012 Q4
1,068
14
5
13108.6
2012 Q3
435
0
0
0.0
2012 Q2
567
2
1
3527.3
2011 Q3
1,295
0
0
0.0
2011 Q1
1,788
4
2
2237.1
2010 Q4
980
0
0
0.0
2010 Q3
980
1
0
1020.4
2010 Q2
980
0
0
0.0
2009 Q4
980
0
0
0.0
2009 Q2
980
0
0
0.0
2009 Q1
980
1
0
1020.4
2008 Q3
980
0
0
0.0
2008 Q2
1,080
0
0
0.0
2008 Q1
1,387
8
3
5767.8
2007 Q4
2,102
0
0
0.0
2007 Q3
3,134
2
1
638.2
2007 Q2
3,267
0
0
0.0
2007 Q1
3,352
0
0
0.0
2006 Q4
3,873
0
0
0.0
2006 Q3
3,602
0
0
0.0
2006 Q2
3,281
0
0
0.0
2006 Q1
3,363
0
0
0.0
2005 Q4
4,238
0
0
0.0
2005 Q3
3,213
6
4
1867.4
2005 Q2
2,888
0
0
0.0
2005 Q1
2,841
1
0
352.0
2004 Q4
2,830
0
0
0.0
2004 Q3
4,509
4
2
887.1
2004 Q2
5,387
0
0
0.0
2004 Q1
4,620
2
0
432.9
2003 Q4
4,606
0
0
0.0
2003 Q3
4,606
0
0
0.0
2003 Q2
6,337
0
0
0.0
2003 Q1
5,519
2
0
362.4
2002 Q4
4,080
0
0
0.0
2002 Q3
4,320
8
2
1851.9
2002 Q2
4,360
0
0
0.0
2002 Q1
4,360
4
3
917.4
2001 Q4
4,800
0
0
0.0
2001 Q3
4,880
0
0
0.0
2001 Q2
3,573
0
0
0.0
2001 Q1
3,573
2
2
559.8
2000 Q4
4,605
0
0
0.0
2000 Q3
4,606
2
2
434.2
2000 Q2
4,049
0
0
0.0
2000 Q1
2,943
2
1
679.6
No fatalities recorded at this mine.
Reportable incidents
4 on file
2025 · 1 incident
May 13, 2025PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Miner was adjusting a hose when EE suddenly suffered acute pain in EE's knee. The incident was due poor posture. The working conditions were safe and adequate. The miner suffered a fracture in EE's meniscus. The miner suffered no impact, nor did EE slip before the incident.
2024 · 2 incidents
January 18, 2024PR · Metal/Non-Metalmaster mechanic, foreman, supervisorHANDLING OF MATERIALS
After removing the stones into the mill, employee moves the dough manually to make sure it is free and pricks the last fingers with the next section of the dough.
January 18, 2024PR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Walking on the ground, the ankle of the right foot is bent.
1994 · 1 incident
April 22, 1994PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS