Cantera H R /LAVADERO has $44K in proposed MSHA penalties and $241 outstanding across 2 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
7
Years on record
2011–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2005
141
citations
48
significant & substantial
$43,621
proposed penalties
$42,285
paid to date
97% of proposed penalties paid to date, a $1,336 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.
141 citations across 1,251 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
2
Section 107(a) orders
Most recent order: 2019-03-12.
On record since 2018.
Source: MSHA imminent-danger order records, updated weekly.
Cantera H R /LAVADERO has $44K in proposed MSHA penalties and $241 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.
$44K
proposed penalties
$43K
current assessed
$42K
paid to date
$241
outstanding
137 assessments are final orders; 2 contested dockets.
Of $8K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2026-05-12.
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.
9citations taken to the federal commission · 6% of citations on record
Settled
7 · 78%
Vacated or withdrawn
2 · 22%
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 3 decided S&S contests · industry: 79%
30%
Penalty reduction in decided contests
$8K proposed, $5K 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 2018-04-01.
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: 2024-05-28
0%
of limit-tested samples over the exposure limit
29
samples
16
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz11
Unlisted Particulate, total, <1% Qtz6
Nuisance dust, total, <1% Qtz5
Respirable dust, <.1mg4
Show the individual readings (41)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-05-28
Respirable dust, <.1mg
0
Cont. Miner Operator
2024-05-28
Respirable dust, <.1mg
0
Crusher Oper/Worker
2023-09-20
Nuisance dust, total, <1% Qtz
3.19
10
0.32
Crusher Oper/Worker
2023-09-20
Nuisance dust, total, <1% Qtz
2.86
10
0.29
Cleanup Man
2021-04-14
Unlisted Particulate, total, <1% Qtz
0.49
Bulldozer Operator
2021-04-14
Unlisted Particulate, total, <1% Qtz
0.32
Cleanup Man
2021-04-14
Quartz, respirable, >1% Qtz
0.61
1.61
0.38
Front-end Loader Operator
2021-04-14
Respirable dust, <.1mg
0
Crusher Oper/Worker
2020-09-24
Quartz, respirable, >1% Qtz
0.22
Cleanup Man
2020-09-24
Quartz, respirable, >1% Qtz
0.21
Crusher Oper/Worker
2020-07-15
Nuisance dust, total, <1% Qtz
1.9
10
0.19
Crusher Oper/Worker
2020-07-15
Nuisance dust, total, <1% Qtz
3.29
10
0.33
Laborer, Bullgang
2020-07-15
Nuisance dust, total, <1% Qtz
3.82
10
0.38
Crusher Oper/Worker
2019-09-10
Quartz, respirable, >1% Qtz
0.26
Crusher Oper/Worker
2019-09-10
Quartz, respirable, >1% Qtz
0.76
1.37
0.55
Drill Operator, Rotary
2018-07-25
Unlisted Particulate, total, <1% Qtz
1.47
Front-end Loader Operator
2018-07-25
Quartz, respirable, >1% Qtz
0.74
1.16
0.64
Bulldozer Operator
2018-07-25
Quartz, respirable, >1% Qtz
0.81
1.13
0.72
Crusher Oper/Worker
2016-07-28
Quartz, respirable, >1% Qtz
0.31
0.85
0.36
Crusher Oper/Worker
2015-04-14
Unlisted Particulate, total, <1% Qtz
2.82
Cleanup Man
2015-04-14
Quartz, respirable, >1% Qtz
0.64
1
0.64
Crusher Oper/Worker
2013-12-11
Unlisted Particulate, total, <1% Qtz
0.33
Crusher Oper/Worker
2013-12-11
Unlisted Particulate, total, <1% Qtz
0.42
Bulldozer Operator
2013-04-24
Vanadium fumes
0.21
50
0.00
Welder, etc.
2013-04-24
Nickel fumes
0
1
0.00
Welder, etc.
2013-04-24
Molybdenum fumes
0
10
0.00
Welder, etc.
2013-04-24
Manganese fumes
0.01
5
0.00
Welder, etc.
2013-04-24
Magnesium oxide fumes
0.07
10
0.01
Welder, etc.
2013-04-24
Lead fumes
0.28
150
0.00
Welder, etc.
2013-04-24
Iron oxide fumes
0.23
10
0.02
Welder, etc.
2013-04-24
Copper fumes
0.93
100
0.01
Welder, etc.
2013-04-24
Cobalt fumes
0.05
100
0.00
Welder, etc.
2013-04-24
Chromium, insoluble
0
1
0.00
Welder, etc.
2013-04-24
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2013-04-24
Arsenic fumes
0.44
500
0.00
Welder, etc.
2013-04-24
Beryllium fumes
0
2
0.00
Welder, etc.
2013-04-24
Zinc oxide fumes
0
5
0.00
Welder, etc.
2012-04-17
Quartz, respirable, >1% Qtz
0.7
1.12
0.63
Crusher Oper/Worker
2009-09-30
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2009-06-25
Quartz, respirable, >1% Qtz
0.26
1.02
0.25
Bulldozer Operator
2009-06-25
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Backhoe Operator
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.
Cantera H R /LAVADERO recorded 0.00 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below 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 *
0.00
0.00
0.000
2024 *
6.30
6.30
0.000
2023 *
6.71
6.71
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
7.64
7.64
0.000
2019 *
0.00
0.00
0.000
2018 *
8.95
8.95
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
17
2025
16
2024
16
2023
16
2022
13
2021
15
2020
16
2019
13
2018
10
2017
11
2016
13
2015
10
2014
10
2013
11
2012
11
2011
11
2010
10
2009
8
2008
5
2007
3
2006
4
2005
5
Source: MSHA quarterly employment and production, updated weekly.
Cantera H R /LAVADERO sits in Mayagüez 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.
Mayagüez Municipio, Puerto Rico · Population 71,824
0.0%
Mining share of county employment
$17,963
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
7,580
5
2
659.6
2026 Q1
7,100
0
0
0.0
2025 Q4
7,343
1
0
136.2
2025 Q3
7,545
2
0
265.1
2025 Q2
7,573
0
0
0.0
2025 Q1
7,082
2
1
282.4
2024 Q4
8,140
0
0
0.0
2024 Q3
8,667
4
2
461.5
Show 75 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
8,124
1
1
123.1
2024 Q1
6,827
4
3
585.9
2023 Q4
7,315
0
0
0.0
2023 Q3
8,086
7
2
865.7
2023 Q2
8,025
0
0
0.0
2023 Q1
6,378
0
0
0.0
2022 Q4
5,177
7
1
1352.1
2022 Q3
6,266
0
0
0.0
2022 Q2
6,484
4
0
616.9
2022 Q1
4,900
2
1
408.2
2021 Q4
7,050
0
0
0.0
2021 Q3
6,584
0
0
0.0
2021 Q2
6,820
1
0
146.6
2021 Q1
6,896
3
2
435.0
2020 Q4
8,724
0
0
0.0
2020 Q3
8,301
2
0
240.9
2020 Q2
3,258
0
0
0.0
2020 Q1
5,884
3
1
509.9
2019 Q4
6,913
0
0
0.0
2019 Q3
6,946
1
0
144.0
2019 Q2
6,965
0
0
0.0
2019 Q1
6,985
5
1
715.8
2018 Q4
5,450
2
1
367.0
2018 Q3
5,186
3
0
578.5
2018 Q2
5,969
0
0
0.0
2018 Q1
5,744
5
2
870.5
2017 Q4
5,606
0
0
0.0
2017 Q3
5,215
1
0
191.8
2017 Q2
6,441
0
0
0.0
2017 Q1
6,495
5
2
769.8
2016 Q4
6,603
0
0
0.0
2016 Q3
8,086
1
0
123.7
2016 Q2
7,862
0
0
0.0
2016 Q1
6,873
0
0
0.0
2015 Q4
5,463
10
4
1830.5
2015 Q3
4,601
0
0
0.0
2015 Q2
4,576
2
0
437.1
2015 Q1
3,928
0
0
0.0
2014 Q4
4,098
2
1
488.0
2014 Q3
4,271
5
0
1170.7
2014 Q2
4,302
1
0
232.5
2014 Q1
4,316
0
0
0.0
2013 Q4
4,475
2
0
446.9
2013 Q3
4,896
0
0
0.0
2013 Q2
4,424
4
2
904.2
2013 Q1
4,308
4
1
928.5
2012 Q4
5,162
0
0
0.0
2012 Q3
5,811
0
0
0.0
2012 Q2
6,393
4
1
625.7
2012 Q1
5,814
0
0
0.0
2011 Q4
6,204
5
1
805.9
2011 Q3
5,663
0
0
0.0
2011 Q2
4,931
6
2
1216.8
2011 Q1
4,362
1
0
229.3
2010 Q4
4,309
0
0
0.0
2010 Q3
5,139
1
1
194.6
2010 Q2
4,039
0
0
0.0
2010 Q1
3,793
2
1
527.3
2009 Q4
4,788
0
0
0.0
2009 Q3
3,546
0
0
0.0
2009 Q2
2,704
5
3
1849.1
2009 Q1
2,808
2
1
712.3
2008 Q4
2,676
0
0
0.0
2008 Q3
1,440
3
1
2083.3
2008 Q2
2,400
0
0
0.0
2008 Q1
2,400
2
1
833.3
2007 Q4
1,200
0
0
0.0
2007 Q3
1,200
3
2
2500.0
2007 Q2
1,200
0
0
0.0
2007 Q1
1,200
0
0
0.0
2006 Q4
1,680
0
0
0.0
2006 Q3
720
0
0
0.0
2006 Q2
1,680
4
3
2381.0
2006 Q1
2,160
0
0
0.0
2005 Q4
2,160
1
0
463.0
No fatalities recorded at this mine.
Reportable incidents
7 on file
2026 · 1 incident
June 22, 2026PR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
El empleado alega que se cayo por las escaleras del cuarto de controles mientras realizaba sus labores de trabajo, (fractura en dedo indice de la mano izquierda)
2024 · 1 incident
May 22, 2024PR · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDTOOLS (NONPOWERED)
El empleado alega que mientras reparaba el conveyor, se resbaló la barra y le pincho el dedo del corazón de la mano izquierda ocacionandole una cortadura/The employee alleges that while repairing the conveyor, the bar slipped and punctured the middle finger of left hand, causing a cut.
2023 · 1 incident
December 27, 2023PR · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON
The employee was walking on the main crusher's walkway, and slipped going down the stairs. As EE tried to stop the fall, EE landed on top of a sledge hammer handle in the lower level. The handle caused an open wound on EE's left thigh.
El empleado alega que mientras sacaba la manga del diesel resbalo cayendo sobre un tubo de la barranda. The EE claims EE slipped and fell on top the railing while pulling out a diesel hose.