Patapsco Natural Stone Quarry LLC · Struck against stationary object
Operator handling stone with hands, sharp piece of stone broke through glove. Caused a cut on left hand.
Patapsco Natural Stone Quarry LLC: 79 MSHA citations Metal/Non-Metal
Patapsco Natural Stone Quarry LLC
· Surface
Controlled by
Kristine Lamkin Weiffenbach
MSHA Mine ID: 1800192
Patapsco Natural Stone Quarry LLC has $16K 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
- 14
- Years on record
- 1988–2019
- Latest incident
- Jun 2019
Compliance record
MSHA citations since 2003
79
citations
18
significant & substantial
$16,319
proposed penalties
$16,319
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
50
inspections on record
618
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: 618 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Patapsco Natural Stone Quarry LLC has $16K 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.$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
79 assessments are final orders; 3 contested dockets.
Of $3K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2026-01-07.
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.22.8%
significant & substantial
27.8%
high negligence or reckless
22.8%
reasonably likely or greater
36.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 16.5% low, 55.7% moderate, 27.8% 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.
10
citations taken to the federal commission · 13% of citations on record
- Settled 9 · 90%
- Vacated or withdrawn 1 · 10%
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 2 decided S&S contests · industry: 79%
2%
Penalty reduction in decided contests
$4K proposed, $4K 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 2014-09-18.
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 |
|---|---|---|---|---|
| YORK 2008-191M | Settlement | Lesnick | 2008 | $3K → $3K |
| YORK 2008-192M | Settlement | Lesnick | 2009 | $100 → $100 |
| YORK 2014-0200 | Withdrawal | Lesnick | 2015 | $100 → $0 |
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: 2026-01-07
ⓘ
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.50%
of limit-tested samples over the exposure limit
10
samples
2
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz21 over
- Respirable dust, <.1mg8
Show the individual readings (10)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2023-12-05 | Quartz, respirable, >1% Qtz | 0.27 | 0.25 | 1.08 | Stone Polisher/Cutter |
| 2026-01-07 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2026-01-07 | Respirable dust, <.1mg | 0 | Hand Loader | ||
| 2026-01-07 | Respirable dust, <.1mg | 0 | Hand Loader | ||
| 2026-01-07 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2024-09-17 | Respirable dust, <.1mg | 0 | Stone Polisher/Cutter | ||
| 2015-08-27 | Respirable dust, <.1mg | 0 | Backhoe Operator | ||
| 2015-08-27 | Respirable dust, <.1mg | 0 | Stone Polisher/Cutter | ||
| 2015-08-27 | Quartz, respirable, >1% Qtz | 0.12 | 1.13 | 0.11 | Stone Polisher/Cutter |
| 2015-08-27 | Respirable dust, <.1mg | 0 | Stone Polisher/Cutter |
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.
Patapsco Natural Stone Quarry LLC recorded 17.44 reportable injury cases per 100 full-time workers in 2006.
Injury rate, 2006
ⓘ
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.17.44
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.41 and the all-US-mining average was 3.91 cases per 100 workers.
In Maryland, metal and nonmetal mining averaged 6.62 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 |
|---|---|---|---|
| 2006 * | 17.44 | 0.00 | 0.000 |
| 2005 * | 10.48 | 10.48 | 0.000 |
| 2004 * | 5.87 | 5.87 | 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
- Piccirilli Quarries 1950 to 2002
- Vinci Stone Products, Inc 2002 to 2015
- VSP Holdings, LLC 2015 to 2017
- Patapsco Natural Stone Quarry LLC 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 6 |
| 2025 | 6 |
| 2024 | 5 |
| 2023 | 6 |
| 2022 | 7 |
| 2021 | 7 |
| 2020 | 6 |
| 2019 | 6 |
| 2018 | 6 |
| 2017 | 8 |
| 2016 | 5 |
| 2015 | 5 |
| 2014 | 5 |
| 2013 | 3 |
| 2012 | 5 |
| 2011 | 7 |
| 2010 | 7 |
| 2009 | 8 |
| 2008 | 11 |
| 2007 | 10 |
| 2006 | 16 |
| 2005 | 19 |
| 2004 | 13 |
| 2003 | 6 |
| 2002 | 2 |
Source: MSHA quarterly employment and production, updated weekly.
Patapsco Natural Stone Quarry LLC sits in Howard County, Maryland, 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.Howard County, Maryland · Population 333,916
0.0%
Mining share of county employment
$146,982
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 | 2,526 | 0 | 0 | 0.0 |
| 2026 Q1 | 2,526 | 4 | 0 | 1583.5 |
| 2025 Q4 | 2,886 | 0 | 0 | 0.0 |
| 2025 Q3 | 2,526 | 0 | 0 | 0.0 |
| 2025 Q2 | 2,526 | 0 | 0 | 0.0 |
| 2025 Q1 | 2,526 | 0 | 0 | 0.0 |
| 2024 Q4 | 2,526 | 1 | 0 | 395.9 |
| 2024 Q3 | 1,930 | 1 | 1 | 518.1 |
Show 89 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 2,526 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,930 | 0 | 0 | 0.0 |
| 2023 Q4 | 2,526 | 4 | 1 | 1583.5 |
| 2023 Q3 | 2,526 | 4 | 0 | 1583.5 |
| 2023 Q2 | 2,526 | 0 | 0 | 0.0 |
| 2023 Q1 | 2,526 | 2 | 0 | 791.8 |
| 2022 Q4 | 2,526 | 0 | 0 | 0.0 |
| 2022 Q3 | 2,821 | 8 | 1 | 2835.9 |
| 2022 Q2 | 3,714 | 0 | 0 | 0.0 |
| 2022 Q1 | 2,720 | 0 | 0 | 0.0 |
| 2021 Q4 | 4,309 | 0 | 0 | 0.0 |
| 2021 Q3 | 2,671 | 0 | 0 | 0.0 |
| 2021 Q2 | 2,323 | 0 | 0 | 0.0 |
| 2021 Q1 | 2,512 | 0 | 0 | 0.0 |
| 2020 Q4 | 3,007 | 1 | 0 | 332.6 |
| 2020 Q3 | 2,950 | 0 | 0 | 0.0 |
| 2020 Q2 | 2,565 | 0 | 0 | 0.0 |
| 2020 Q1 | 3,068 | 3 | 1 | 977.8 |
| 2019 Q4 | 3,021 | 0 | 0 | 0.0 |
| 2019 Q3 | 2,898 | 0 | 0 | 0.0 |
| 2019 Q2 | 2,966 | 3 | 1 | 1011.5 |
| 2019 Q1 | 2,502 | 0 | 0 | 0.0 |
| 2018 Q4 | 2,008 | 0 | 0 | 0.0 |
| 2018 Q3 | 2,476 | 9 | 3 | 3634.9 |
| 2018 Q2 | 2,526 | 0 | 0 | 0.0 |
| 2018 Q1 | 1,871 | 0 | 0 | 0.0 |
| 2017 Q4 | 2,398 | 0 | 0 | 0.0 |
| 2017 Q3 | 2,762 | 0 | 0 | 0.0 |
| 2017 Q2 | 3,033 | 1 | 0 | 329.7 |
| 2017 Q1 | 2,979 | 4 | 1 | 1342.7 |
| 2016 Q4 | 2,666 | 0 | 0 | 0.0 |
| 2016 Q3 | 2,760 | 0 | 0 | 0.0 |
| 2016 Q2 | 1,955 | 0 | 0 | 0.0 |
| 2016 Q1 | 1,477 | 0 | 0 | 0.0 |
| 2015 Q4 | 1,311 | 3 | 1 | 2288.3 |
| 2015 Q3 | 1,925 | 0 | 0 | 0.0 |
| 2015 Q2 | 1,560 | 0 | 0 | 0.0 |
| 2015 Q1 | 10 | 0 | 0 | 0.0 |
| 2014 Q4 | 740 | 0 | 0 | 0.0 |
| 2014 Q3 | 2,336 | 2 | 0 | 856.2 |
| 2014 Q2 | 1,944 | 0 | 0 | 0.0 |
| 2014 Q1 | 20 | 0 | 0 | 0.0 |
| 2013 Q4 | 985 | 0 | 0 | 0.0 |
| 2013 Q3 | 1,328 | 0 | 0 | 0.0 |
| 2013 Q2 | 1,188 | 0 | 0 | 0.0 |
| 2013 Q1 | 5 | 0 | 0 | 0.0 |
| 2012 Q4 | 1,790 | 3 | 0 | 1676.0 |
| 2012 Q3 | 2,196 | 0 | 0 | 0.0 |
| 2012 Q2 | 1,672 | 0 | 0 | 0.0 |
| 2012 Q1 | 480 | 0 | 0 | 0.0 |
| 2011 Q4 | 4,320 | 1 | 0 | 231.5 |
| 2011 Q3 | 3,360 | 0 | 0 | 0.0 |
| 2011 Q2 | 4,320 | 0 | 0 | 0.0 |
| 2011 Q1 | 480 | 0 | 0 | 0.0 |
| 2010 Q4 | 3,840 | 3 | 1 | 781.2 |
| 2010 Q3 | 4,320 | 6 | 3 | 1388.9 |
| 2010 Q2 | 4,320 | 0 | 0 | 0.0 |
| 2010 Q1 | 480 | 0 | 0 | 0.0 |
| 2009 Q4 | 3,840 | 0 | 0 | 0.0 |
| 2009 Q3 | 3,840 | 2 | 1 | 520.8 |
| 2009 Q2 | 3,840 | 0 | 0 | 0.0 |
| 2009 Q1 | 1,440 | 0 | 0 | 0.0 |
| 2008 Q4 | 5,760 | 0 | 0 | 0.0 |
| 2008 Q3 | 4,800 | 0 | 0 | 0.0 |
| 2008 Q2 | 4,800 | 0 | 0 | 0.0 |
| 2008 Q1 | 2,880 | 8 | 1 | 2777.8 |
| 2007 Q4 | 3,840 | 0 | 0 | 0.0 |
| 2007 Q3 | 3,840 | 0 | 0 | 0.0 |
| 2007 Q2 | 4,800 | 0 | 0 | 0.0 |
| 2007 Q1 | 6,240 | 1 | 1 | 160.3 |
| 2006 Q4 | 7,200 | 0 | 0 | 0.0 |
| 2006 Q3 | 9,680 | 0 | 0 | 0.0 |
| 2006 Q2 | 9,168 | 0 | 0 | 0.0 |
| 2006 Q1 | 8,361 | 0 | 0 | 0.0 |
| 2005 Q4 | 8,889 | 0 | 0 | 0.0 |
| 2005 Q3 | 15,543 | 1 | 0 | 64.3 |
| 2005 Q2 | 9,660 | 0 | 0 | 0.0 |
| 2005 Q1 | 4,064 | 0 | 0 | 0.0 |
| 2004 Q4 | 6,358 | 1 | 1 | 157.3 |
| 2004 Q3 | 11,907 | 1 | 0 | 84.0 |
| 2004 Q2 | 8,438 | 0 | 0 | 0.0 |
| 2004 Q1 | 7,375 | 1 | 0 | 135.6 |
| 2003 Q4 | 4,348 | 0 | 0 | 0.0 |
| 2003 Q3 | 3,224 | 0 | 0 | 0.0 |
| 2003 Q2 | 2,080 | 0 | 0 | 0.0 |
| 2003 Q1 | 567 | 1 | 0 | 1763.7 |
| 2002 Q4 | 414 | 0 | 0 | 0.0 |
| 2002 Q3 | 510 | 0 | 0 | 0.0 |
| 2002 Q2 | 394 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
14 on file2019 · 1 incident
2014 · 1 incident
Vinci Stone Products, Inc · Struck by falling object
Employee was working in the open pit sorting stone and a large stone fell on top his right foot. Employee was wearing steel toe boots at the time of incident. The employee was sent to the doctor immediately after he reported to the office.
2013 · 1 incident
Vinci Stone Products, Inc · Fall to the walkway or working surface
Employee was pulling a water pump up the hill and it slipped out of his hands. When he tried to grab it, he fell on his side and hurt his left shoulder. Employee was able to get up and walk into the office, his complaint was pain in left shoulder. He was then sent for medical exam.
2008 · 1 incident
July 25, 2008
MD · Metal/Non-Metal
stone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmer
MACHINERY
Vinci Stone Products, Inc · Struck against stationary object
Employee was at the Chris Stone Cutter machine and was pushing stone through the cutter, when his right hand slipped and his right forearm braised against the stone. This resulted in a 2" long cut to his right forarm.
2006 · 3 incidents
October 11, 2006
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
MACHINERY
Vinci Stone Products, Inc · Struck by flying object
Worker was operating air hammer to split flagstone. A fragment of metal shot under his safety glasses and embedded in his right eye.
April 5, 2006
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Vinci Stone Products, Inc · Struck by rolling or sliding object
Employee was picking up stones from stock pile when larger stone rolled down and impacted employee's leg. He suffered a bruise above his right knee.
March 31, 2006
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Vinci Stone Products, Inc · Struck by rolling or sliding object
EE was reclaiming stones from stock pile when a larger stone rolled down and smashed his finger.
2005 · 2 incidents
July 8, 2005
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
Vinci Stone Products, Inc · Struck by falling object
Employee was tending to water pump in quarry pit when a side of the pit gave way (heavy rain storm). A piece of rock slit his right hand in the thumb area cutting a deep gash.
March 12, 2005
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
POWERED HAULAGE
Vinci Stone Products, Inc · Struck by powered moving object
The operator of the forklift was approaching a pallet of stone. The injured EE was still in the process of wrapping a pallet of stone when the forks of the forklift pinned the injured employee's leg.
2004 · 1 incident
August 6, 2004
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
POWERED HAULAGE
Vinci Stone Products, Inc · Caught in, under or between a moving and a stationary object
THE OPERATOR OF THE TELESCOPIC FORKLIFT WAS APPROACHING A METAL PAN THAT WAS FULL OF WASTE MATERIAL. THIS WORKER WAS ASSISTING IN CHANGING THE PAN TO THE FORK LIFT WHEN HIS RIGHT INDEX FINGER WAS CAUGHT BETWEEN THE FORKS AND THE PAN.
1991 · 2 incidents
August 2, 1991
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Piccirilli Quarries · Struck by falling object
WORKING ON SCREENING PLANT & WENT TO PUT PROTECTED DOOR BACK ON & IT SLIPPED & FELL CATCHING RT INDEX FINGER
July 8, 1991
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDTOOLS (NONPOWERED)
Piccirilli Quarries · Struck by... (Not Elsewhere Classified)
EE WAS HOLDING DRIVE CHAIN ON THE BACK HOE AND AMEL WENT TO HIT THE CHAIN WITH HAMMER AND MISSED AND CAUGHT EE S LEFT HAND.
1990 · 1 incident
February 1, 1990
MD · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Piccirilli Quarries · Struck by... (Not Elsewhere Classified)
HAD STONE SLIP FROM HANDS & LAND ON KNEECAP
1988 · 1 incident
October 18, 1988
MD · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
SLIP OR FALL OF PERSON
Piccirilli Quarries · Fall from machine
EMPLOYEE HAD JUST PUT AWAY HIS TOOLS AND WAS STEPPING OUT OF THE BACK OF HIS OWN PICK-UP. HIS FOOT SLIPPED OFF THE REAR BUMPER, TWISTING HIS LEG AND HE FELL TO THE GROUND.