Mining Incidents

Cantera Naranjo: 38 MSHA citations Metal/Non-Metal

P.R. Productos de Agregados, Inc. · Surface
Controlled by Luis A Reyes-Leon
Juana Diaz, Santa Isabel County, PR  ·  Abandoned
MSHA Mine ID: 5400157

Cantera Naranjo has $8K in proposed MSHA penalties and $1K outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
7
Years on record
1985–1994
Latest incident
Jul 1994
Compliance record
MSHA citations since 2000
38
citations
12
significant & substantial
$8,189
proposed penalties
$6,937
paid to date
85% of proposed penalties paid to date, a $1,252 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
39
inspections on record
333
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: 333 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
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.
1
Section 107(a) orders
Most recent order: 2013-05-01.
On record since 2013.
Source: MSHA imminent-danger order records, updated weekly.

Cantera Naranjo has $8K in proposed MSHA penalties and $1K 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.
$8K
proposed penalties
$8K
current assessed
$7K
paid to date
$1K
outstanding
37 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2018-08-28.
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.
32.4%
significant & substantial
29.7%
high negligence or reckless
32.4%
reasonably likely or greater
94.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 70.3% moderate, 29.7% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, 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: 2017-01-25, 9 years ago
0%
of limit-tested samples over the exposure limit
6
samples
4
limit-tested
Most sampled contaminants
  • Nuisance dust, respirable, <1% Qtz3
  • Respirable dust, <.1mg2
  • Nuisance dust, total, <1% Qtz1
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2017-01-25 Nuisance dust, respirable, <1% Qtz 0.45 10 0.05 Cleanup Man
2017-01-25 Nuisance dust, respirable, <1% Qtz 0.24 10 0.02 Rotary Bucket Ex. Operator
2017-01-25 Respirable dust, <.1mg 0 Cleanup Man
2015-11-18 Respirable dust, <.1mg 0 Drill Operator, Rotary
2015-11-18 Nuisance dust, total, <1% Qtz 0.36 10 0.04 Dry Screen Plant Operator
2012-08-15 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Cleanup Man
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 Naranjo recorded 0.00 reportable injury cases per 100 full-time workers in 2018.

Injury rate, 2018
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
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 1.95 and the all-US-mining average was 2.33 cases per 100 workers.
In Puerto Rico, metal and nonmetal mining averaged 2.26 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
2018 * 0.00 0.00 0.000
2017 * 0.00 0.00 0.000
2016 * 0.00 0.00 0.000
2015 * 0.00 0.00 0.000
2014 * 0.00 0.00 0.000
2013 * 0.00 0.00 0.000
2000 * 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. Empresas Tito Castro Inc 1950 to 2012
  2. P.R. Productos de Agregados, Inc. 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 15
2017 16
2016 16
2015 16
2014 14
2013 14
2012 11
2001 12
2000 21
Source: MSHA quarterly employment and production, updated weekly.

Cantera Naranjo sits in Santa Isabel 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.
Santa Isabel Municipio, Puerto Rico · Population 20,064
0.0%
Mining share of county employment
$23,197
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
2018 Q4 7,150 0 0 0.0
2018 Q3 7,580 1 0 131.9
2018 Q2 7,196 0 0 0.0
2018 Q1 6,489 1 0 154.1
2017 Q4 5,853 0 0 0.0
2017 Q3 7,013 0 0 0.0
2017 Q2 7,792 0 0 0.0
2017 Q1 6,381 0 0 0.0
Show 24 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2016 Q4 8,084 0 0 0.0
2016 Q3 7,452 0 0 0.0
2016 Q2 7,096 1 0 140.9
2016 Q1 6,543 0 0 0.0
2015 Q4 7,124 2 0 280.7
2015 Q3 6,823 3 1 439.7
2015 Q2 6,932 0 0 0.0
2015 Q1 5,530 1 1 180.8
2014 Q4 6,010 0 0 0.0
2014 Q3 5,780 2 0 346.0
2014 Q2 6,680 0 0 0.0
2014 Q1 4,890 0 0 0.0
2013 Q4 7,392 2 0 270.6
2013 Q3 7,550 0 0 0.0
2013 Q2 7,241 11 5 1519.1
2013 Q1 6,267 4 0 638.3
2012 Q4 6,001 0 0 0.0
2012 Q3 5,443 2 0 367.4
2001 Q2 2,884 0 0 0.0
2001 Q1 4,070 0 0 0.0
2000 Q4 4,816 0 0 0.0
2000 Q3 6,247 3 2 480.2
2000 Q2 9,481 0 0 0.0
2000 Q1 11,225 3 3 267.3
No fatalities recorded at this mine.

Reportable incidents

7 on file

1994 · 1 incident

July 9, 1994 PR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Empresas Tito Castro Inc · Struck by... (Not Elsewhere Classified)

THE INJURED AND FELLOW MECHANIC WERE TAKING OUT A TRANSMISSION WITH A FEW BROKEN BOLTS WHICH THEY APPARENTLY DID NOT NOTICE ON TIME TO HOIST THE EQUIPMENT. SUDDENLY THE TRANSMISSION TURNED TO ONE SIDE HITTING THE INJURED ON THE LOWER PART OF HIS BACK LUMBAR PART. TRANSMISSION OF AN OFF ROAD HAULER.

1992 · 1 incident

June 22, 1992 PR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Empresas Tito Castro Inc · Over-exertion in lifting objects

FAILURE TO LIFT HEAVY OBJECT USING THE CORRECT WAY USING FEET MUSCLES INSTEAD OF BACK MUSCLE.

1989 · 2 incidents

November 9, 1989 PR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Empresas Tito Castro Inc · Unclassified, insufficient data

EMPL DURING LUNCH HOUR LEANED OVER LEFT AND FAINTED.FELLOW WORKER SAW IT HAPPEN,EMPL TAKEN TO HOSPITAL.

January 16, 1989 PR · Metal/Non-Metal welder (shop) MACHINERY
Empresas Tito Castro Inc · Struck by falling object

REPA2RING WATER TRUCK TA(K FORGOT TO REMOVE PC OF 6" BY 34" STEEL CHANNEL FOJRM TOP OF TANK IT FELL DOWN AND HIT WELDER ON FIRST FINGER L. FT.

1987 · 2 incidents

September 2, 1987 PR · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Empresas Tito Castro Inc · Fall from machine

..TRIED TO TIGH7EN BOLTS AND NUTS FROM HYDRAULIC SYSTEM USED TO MOVE BLADE OF DOZER UP AND DOWN.

June 16, 1987 PR · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DISORDERS (PHYSICAL AGENTS)
Empresas Tito Castro Inc · Contact with heat

REASON STILL UN5NOWN BUT I BELIEVE THAT HE SUFFERED A HEAT FAINTING IN WHICH THE BRAIN SUFFERS FROM A TEMPORARY SHORTAGE OF BLOOD SUPPLY. HE WAS WORKING IN STANDING POSITION THE SUN WAS HOT AN HE PROBABLY PRA7TICED A VOLUNTARY RESTRICTION OF WATER. HE TOLD ME LATER THAT HE FELT THIRSTY BEFORE FAINTING

1985 · 1 incident

May 31, 1985 PR · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Empresas Tito Castro Inc · Fall from scaffolds, walkways, platforms

DIFFERENCE IN ELEVATION BETWEEN PLATFORM WHERE I.NAME WORKING AND THE NEXT WALKING LEVEL OF 2\.WHILE TRYING TO GET CLEAR OF LOAD HANGING FROM A CRANE HE STEPPED BACK AND FELL DOWN TO NEXT LOWE ER LEVEL.