SAN LORENZO SAND & GRAVEL COMPANY has $24K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
29
Years on record
1983–2017
Latest incident
Mar 2017
Compliance record
MSHA citations since 2000
116
citations
44
significant & substantial
$24,354
proposed penalties
$23,262
paid to date
96% of proposed penalties paid to date, a $1,092 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.
116 citations across 1,155 inspection hours.
Source: MSHA inspections data, updated weekly.
SAN LORENZO SAND & GRAVEL COMPANY has $24K in proposed MSHA penalties and $0 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.
$24K
proposed penalties
$23K
current assessed
$23K
paid to date
$0
outstanding
111 assessments are final orders; 3 contested dockets.
Of $8K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2025-04-02.
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.
7citations taken to the federal commission · 6% of citations on record
Settled
4 · 57%
Stood as issued
3 · 43%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
86%
Penalty reduction in decided contests
$8K proposed, $1K 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 2009-12-29.
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: 2025-06-11
0%
of limit-tested samples over the exposure limit
8
samples
2
limit-tested
Most sampled contaminants
Nuisance dust, total, <1% Qtz2
Respirable dust, <.1mg2
Unlisted Particulate, total, <1% Qtz2
Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (8)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-06-11
Nuisance dust, total, <1% Qtz
0.18
10
0.02
Backhoe Operator
2025-06-11
Nuisance dust, total, <1% Qtz
0.13
10
0.01
Front-end Loader Operator
2018-10-29
Unlisted Particulate, respirable, <1% Qtz
0.31
Front-end Loader Operator
2018-10-29
Unlisted Particulate, respirable, <1% Qtz
0.12
Cleanup Man
2011-07-18
Respirable dust, <.1mg
0
Front-end Loader Operator
2011-07-18
Respirable dust, <.1mg
0
Bulldozer Operator
2009-11-12
Unlisted Particulate, total, <1% Qtz
0
Front-end Loader Operator
2009-11-12
Unlisted Particulate, total, <1% Qtz
0.18
Truck Driver
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.
SAN LORENZO SAND & GRAVEL COMPANY recorded 0.00 reportable injury cases per 100 full-time workers in 2022.
Injury rate, 2022
ⓘ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 1.78 and the all-US-mining average was 2.12 cases per 100 workers.
In Puerto Rico, metal and nonmetal mining averaged 2.17 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
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2015 *
0.00
0.00
0.000
2014 *
7.16
7.16
0.000
2013 *
6.47
6.47
0.000
2012 *
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
2025
6
2024
7
2023
11
2022
12
2021
11
2020
12
2019
11
2018
10
2017
11
2016
7
2015
14
2014
15
2013
19
2012
18
2011
18
2010
19
2009
21
2008
27
2007
27
2006
27
2005
25
2004
23
2003
21
2002
22
2001
24
2000
25
Source: MSHA quarterly employment and production, updated weekly.
SAN LORENZO SAND & GRAVEL COMPANY sits in Guayama Municipio, Puerto Rico, where the Census mining category is 0.5% 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.
Guayama Municipio, Puerto Rico · Population 35,845
0.5%
Mining share of county employment
$20,273
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
2025 Q2
2,149
3
1
1396.0
2025 Q1
2,197
0
0
0.0
2024 Q4
2,585
1
0
386.8
2024 Q3
1,792
0
0
0.0
2024 Q2
3,476
3
0
863.1
2024 Q1
4,026
0
0
0.0
2023 Q4
4,194
1
1
238.4
2023 Q3
4,540
0
0
0.0
Show 94 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q2
4,907
1
0
203.8
2023 Q1
5,002
0
0
0.0
2022 Q4
4,920
3
1
609.8
2022 Q3
5,261
0
0
0.0
2022 Q2
5,446
4
0
734.5
2022 Q1
5,495
0
0
0.0
2021 Q4
5,599
2
0
357.2
2021 Q3
5,283
0
0
0.0
2021 Q2
5,492
1
0
182.1
2021 Q1
5,637
0
0
0.0
2020 Q4
4,993
2
0
400.6
2020 Q3
5,745
0
0
0.0
2020 Q2
4,845
4
2
825.6
2020 Q1
5,351
0
0
0.0
2019 Q4
6,021
3
1
498.3
2019 Q3
5,209
0
0
0.0
2019 Q2
5,223
1
1
191.5
2019 Q1
5,313
0
0
0.0
2018 Q4
5,039
1
1
198.5
2018 Q3
4,668
0
0
0.0
2018 Q2
4,938
0
0
0.0
2018 Q1
4,991
0
0
0.0
2017 Q4
5,332
1
0
187.5
2017 Q3
5,072
0
0
0.0
2017 Q2
5,208
2
1
384.0
2017 Q1
3,274
0
0
0.0
2016 Q4
0
0
0
2016 Q3
0
0
0
2016 Q2
6,606
1
0
151.4
2016 Q1
6,611
0
0
0.0
2015 Q4
6,423
2
0
311.4
2015 Q3
6,817
3
1
440.1
2015 Q2
6,840
0
0
0.0
2015 Q1
6,613
1
0
151.2
2014 Q4
6,725
0
0
0.0
2014 Q3
7,093
0
0
0.0
2014 Q2
7,158
1
0
139.7
2014 Q1
6,938
0
0
0.0
2013 Q4
6,739
2
2
296.8
2013 Q3
7,276
0
0
0.0
2013 Q2
8,462
2
0
236.4
2013 Q1
8,421
2
2
237.5
2012 Q4
8,496
0
0
0.0
2012 Q3
7,724
0
0
0.0
2012 Q2
8,111
0
0
0.0
2012 Q1
7,127
3
0
420.9
2011 Q4
8,246
0
0
0.0
2011 Q3
6,968
1
0
143.5
2011 Q2
7,410
2
0
269.9
2011 Q1
7,157
0
0
0.0
2010 Q4
7,802
1
0
128.2
2010 Q3
7,370
0
0
0.0
2010 Q2
6,914
0
0
0.0
2010 Q1
7,497
0
0
0.0
2009 Q4
9,577
6
1
626.5
2009 Q3
9,413
0
0
0.0
2009 Q2
8,337
0
0
0.0
2009 Q1
8,948
0
0
0.0
2008 Q4
10,849
1
0
92.2
2008 Q3
11,449
0
0
0.0
2008 Q2
10,777
8
1
742.3
2008 Q1
10,334
3
1
290.3
2007 Q4
10,845
0
0
0.0
2007 Q3
9,971
0
0
0.0
2007 Q2
10,230
5
2
488.8
2007 Q1
11,692
0
0
0.0
2006 Q4
12,482
4
3
320.5
2006 Q3
11,896
0
0
0.0
2006 Q2
12,745
3
3
235.4
2006 Q1
12,347
0
0
0.0
2005 Q4
12,588
0
0
0.0
2005 Q3
11,058
0
0
0.0
2005 Q2
10,756
4
1
371.9
2005 Q1
9,630
0
0
0.0
2004 Q4
10,249
1
1
97.6
2004 Q3
10,275
1
0
97.3
2004 Q2
9,885
0
0
0.0
2004 Q1
9,161
0
0
0.0
2003 Q4
9,741
4
1
410.6
2003 Q3
9,868
0
0
0.0
2003 Q2
9,995
0
0
0.0
2003 Q1
9,492
3
3
316.1
2002 Q4
9,824
0
0
0.0
2002 Q3
10,305
0
0
0.0
2002 Q2
10,249
0
0
0.0
2002 Q1
9,885
1
0
101.2
2001 Q4
9,587
8
4
834.5
2001 Q3
10,534
0
0
0.0
2001 Q2
11,494
2
2
174.0
2001 Q1
11,740
0
0
0.0
2000 Q4
11,635
8
7
687.6
2000 Q3
12,257
0
0
0.0
2000 Q2
12,393
0
0
0.0
2000 Q1
11,756
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
29 on file
2017 · 2 incidents
March 2, 2017PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techDISORDERS (REPEATED TRAUMA)
Buscando herramienta en la caja de herramientas la tapa de la misma bajo cayendole en un dedo de la mano derecha. (Seeking tool in the toolbox the cover descended falling on a finger of the right hand).
May 6, 2009PR · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
Ayudando al Soldador a soldar unos tubos los mismos se resbalaron cayendole en dos dedos de la mano izquierda. Helping to weld tubes with a soldering iron, the tubes slipped falling onto two fingers on his left hand.
2007 · 2 incidents
December 3, 2007PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Estaba limpiando bateria camion Euclid de espalda hacia la tumba del camion, resbalo cayendo de pie al piso y luego se desplomo al piso. Translation: He was cleaning the Euclid battery on his back towards the top of the R-35. He slipped feet down & then hit the floor.
October 4, 2007PR · Metal/Non-Metalminer, prospector, necOTHER
El empleado alega dolor en la parte baja de la espalda e hinchazon en la rodilla derecha. Lo referimos al C. F. S. E. y acataremos la decision con su relacion al trabajo.
2006 · 2 incidents
November 27, 2006PR · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
Ayudando a reparar una goma equipo Euclids, al safarse la herramienta choco con el cemento y la herramienta le dio en la cabeza. (Helping to repair equipment, his tool collided with the cement and hit him in the head).
March 14, 2006PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSTRIKING OR BUMPING
Estaba mecanizando debajo de un equipo (louder) y al salir se dio un golpe con el equipo en la cabeza. (He was doing mechanical work under the equipment (loader) and when he was coming back up (leaving) he bumped his head on the equipment.)
2005 · 2 incidents
December 30, 2005PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Al bajarse del equipo resbalo se quedo colgando del equipo, lastimandose la rodilla de la pierna izquierda y el pecho. (EE was getting off dozer - walking down dozer track - when his foot got caught and he slipped and fell against the dozer, injuring his left knee and his chest.)
EE WAS ATTEMPTING TO STRAIGHTEN OUT A CONVEYOR BELT ON ROLLERS WITH A PRY BAR. EE LOST HIS TEMPER AND STARTED HITTING THE CONVEYOR WITH THE PRY BAR. THE PRY BAR SLIPPED AND HIT HIS FACE. EE WILL NOT BE ALLOWED TO RETURN TO WORK UNTIL RELEASED BY THE PUERTO RICAN COUNTERPART OF WORKERS' COMP. SAFETY TRAINING SESSION HELD FOR ALL EMPLOYEES (AND EE UPON HIS RETURN).
2002 · 4 incidents
August 23, 2002PR · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerOCCUPATIONAL SKIN DISEASES
EE WAS WORKING IN THE SHOP FIXING THE MACHINE. WHILE IN CONTACT WITH CERTAIN CHEMICALS (GREASE ETC) HE FELT PRICKLY ALL OVER HIS BODY (MAINLY IN THE HANDS). LATER HE FELT BUMPS IN DIFFERENT PA RTS OF HIS BODY.
WHILE CHECKING NOISE IN THE TRUCK A STONE ROLLED OUT AND STRUCK HIM IN LEFT LEG.
September 21, 1994PR · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EE WAS ALIGNING THE CONVEYOR BELT WHEREBY THE WRENCH USED TO ADJUST THE BELT CAUGHT THE PULLEY THEREBY DRAWING EES RIGHT HAND IN BETWEEN THE BELT & PULLEY.