Mining Incidents

LeMasurier Granite Quarry, Inc.: 64 MSHA citations Metal/Non-Metal

North Chelmsford, Middlesex County, MA  ·  Active
MSHA Mine ID: 1900016

LeMasurier Granite Quarry, Inc. has $7K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
5
Years on record
1988–2003
Latest incident
Jan 2003
Compliance record
MSHA citations since 2000
64
citations
10
significant & substantial
$7,382
proposed penalties
$7,382
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
43
inspections on record
542
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: 542 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

LeMasurier Granite Quarry, Inc. has $7K in proposed MSHA penalties and $0 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
61 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-07-09.
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.
15.9%
significant & substantial
3.2%
high negligence or reckless
15.9%
reasonably likely or greater
46.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 11.1% low, 85.7% moderate, 3.2% 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: 2020-03-10, 6 years ago
0%
of limit-tested samples over the exposure limit
6
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz5
  • Respirable dust, <.1mg1
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-03-10 Respirable dust, <.1mg 0 Stone Polisher/Cutter
2020-03-10 Quartz, respirable, >1% Qtz 0.52 0.7 0.74 Stone Polisher/Cutter
2017-08-10 Quartz, respirable, >1% Qtz 0.19 1.03 0.18 Stone Polisher/Cutter
2017-08-10 Quartz, respirable, >1% Qtz 0.48 0.55 0.87 Stone Polisher/Cutter
2008-11-20 Quartz, respirable, >1% Qtz 0.14 0.68 0.21 Stone Polisher/Cutter
2008-11-20 Quartz, respirable, >1% Qtz 0.32 0.6 0.53 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.
Ownership history
  1. LeMasurier Granite Quarry Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 4
2022 4
2021 5
2020 4
2019 4
2018 5
2017 5
2016 5
2015 5
2014 5
2013 5
2012 5
2011 5
2010 5
2009 5
2008 5
2007 5
2006 5
2005 5
2004 5
2003 5
2002 4
2001 4
2000 4
Source: MSHA quarterly employment and production, updated weekly.

LeMasurier Granite Quarry, Inc. sits in Middlesex County, Massachusetts, 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.
Middlesex County, Massachusetts · Population 1,622,896
0.0%
Mining share of county employment
$126,779
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 2,343 0 0 0.0
2026 Q1 2,133 0 0 0.0
2025 Q4 1,903 0 0 0.0
2025 Q3 2,247 1 0 445.0
2025 Q2 2,343 0 0 0.0
2025 Q1 2,270 1 0 440.5
2024 Q4 2,343 0 0 0.0
2024 Q3 2,183 1 0 458.1
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,163 0 0 0.0
2024 Q1 2,307 1 0 433.5
2023 Q4 3,256 0 0 0.0
2023 Q3 1,812 2 1 1103.8
2023 Q2 2,066 0 0 0.0
2023 Q1 2,343 1 0 426.8
2022 Q4 2,436 0 0 0.0
2022 Q3 2,076 0 0 0.0
2022 Q1 2,477 1 0 403.7
2021 Q4 2,746 0 0 0.0
2021 Q3 2,342 0 0 0.0
2021 Q2 2,456 1 0 407.2
2021 Q1 2,477 0 0 0.0
2020 Q4 2,415 0 0 0.0
2020 Q3 2,560 0 0 0.0
2020 Q2 2,443 0 0 0.0
2020 Q1 2,443 2 1 818.7
2019 Q4 3,052 0 0 0.0
2019 Q3 2,301 0 0 0.0
2019 Q2 2,166 2 1 923.4
2019 Q1 2,092 0 0 0.0
2018 Q4 3,050 0 0 0.0
2018 Q3 2,811 1 0 355.7
2018 Q2 2,281 0 0 0.0
2018 Q1 2,281 0 0 0.0
2017 Q4 3,067 0 0 0.0
2017 Q3 2,858 5 0 1749.5
2017 Q2 2,691 0 0 0.0
2017 Q1 2,199 0 0 0.0
2016 Q4 3,050 0 0 0.0
2016 Q3 2,620 0 0 0.0
2016 Q2 2,280 0 0 0.0
2016 Q1 2,444 1 0 409.2
2015 Q4 3,024 0 0 0.0
2015 Q3 3,122 0 0 0.0
2015 Q2 917 1 0 1090.5
2015 Q1 520 3 1 5769.2
2014 Q4 2,960 0 0 0.0
2014 Q3 2,771 13 4 4691.4
2014 Q2 1,143 0 0 0.0
2014 Q1 504 0 0 0.0
2013 Q4 3,143 0 0 0.0
2013 Q3 2,992 0 0 0.0
2013 Q2 1,948 0 0 0.0
2013 Q1 707 0 0 0.0
2012 Q4 3,050 0 0 0.0
2012 Q3 3,120 0 0 0.0
2012 Q2 1,754 0 0 0.0
2012 Q1 1,124 1 0 889.7
2011 Q4 3,211 0 0 0.0
2011 Q3 3,009 0 0 0.0
2011 Q2 1,778 0 0 0.0
2011 Q1 741 8 2 10796.2
2010 Q4 3,365 0 0 0.0
2010 Q3 2,965 0 0 0.0
2010 Q2 710 0 0 0.0
2010 Q1 722 0 0 0.0
2009 Q4 3,078 0 0 0.0
2009 Q3 3,099 0 0 0.0
2009 Q2 1,481 0 0 0.0
2009 Q1 1,068 0 0 0.0
2008 Q4 3,096 2 0 646.0
2008 Q3 2,704 0 0 0.0
2008 Q2 1,234 0 0 0.0
2008 Q1 676 0 0 0.0
2007 Q4 3,091 1 0 323.5
2007 Q3 2,780 0 0 0.0
2007 Q2 1,081 0 0 0.0
2007 Q1 1,188 2 0 1683.5
2006 Q4 2,764 0 0 0.0
2006 Q3 2,450 0 0 0.0
2006 Q2 1,451 3 0 2067.5
2006 Q1 941 0 0 0.0
2005 Q4 2,777 0 0 0.0
2005 Q3 2,474 0 0 0.0
2005 Q2 1,625 0 0 0.0
2005 Q1 1,041 0 0 0.0
2004 Q4 2,607 0 0 0.0
2004 Q3 2,472 0 0 0.0
2004 Q2 1,366 0 0 0.0
2004 Q1 692 0 0 0.0
2003 Q4 2,735 0 0 0.0
2003 Q3 861 0 0 0.0
2003 Q2 1,434 0 0 0.0
2003 Q1 615 0 0 0.0
2002 Q4 922 0 0 0.0
2002 Q3 2,830 0 0 0.0
2002 Q2 1,626 0 0 0.0
2002 Q1 351 0 0 0.0
2001 Q4 2,236 0 0 0.0
2001 Q3 2,107 0 0 0.0
2001 Q2 2,037 0 0 0.0
2001 Q1 446 0 0 0.0
2000 Q4 2,387 0 0 0.0
2000 Q3 2,268 8 0 3527.3
2000 Q2 1,764 0 0 0.0
2000 Q1 727 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

5 on file

2003 · 1 incident

January 10, 2003 MA · Metal/Non-Metal miner, nec MACHINERY
LeMasurier Granite Quarry Inc · Struck by... (Not Elsewhere Classified)

INJURY OCCURRED WHILE EE WAS CUTTING WOODEN PALLETS INTO FIREWOOD USING AN ELECTRIC "SKILL" SAW.

1998 · 1 incident

May 19, 1998 MA · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
LeMasurier Granite Quarry Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS INJURED WHILE FINISHING A PIECE OF GRANITE CURB. DURING THE FINISHING OF ONE "END PIECE" OF A CURB BLOCK, THE EMPLOYEE WAS TAKING OFF A PORTION OF THE CURB SO AS TO MAKE IT SALEAB LE. A PIECE OF THE STONE THAT WAS BEING REMOVED CAME TOWARD THE EMPLOYEE RESULTING IN A CUT TO THE BACK SIDE OF HIS RIGHT HAND.

1997 · 1 incident

November 19, 1997 MA · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
LeMasurier Granite Quarry Inc · Struck by... (Not Elsewhere Classified)

AFTER HAVINGUSED A HAND HELD GRINDER. EMPLOYEE WAS BRUSHING THE DUST FROM HIS FACE AND SOME SMALL PIECES OF STONE FELL INTO HIS LEFT EYE.

1990 · 1 incident

1988 · 1 incident

April 12, 1988 MA · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
LeMasurier Granite Quarry Inc · Struck by flying object

TRIMMING STONE WHEN A PIECE OF STEEL FROM TRIMMING HAMMER CHIPPED OFF AND ENTERED EYE.