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Lot 340 Quarry: 53 MSHA citations Metal/Non-Metal

Controlled by Daniel R Becker
Dubuque, Dubuque County, IA  ·  Active
MSHA Mine ID: 1300280

Lot 340 Quarry 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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Email me when a new MSHA incident is filed at Lot 340 Quarry.

Fatalities
0
Total incidents
7
Years on record
1991–2015
Latest incident
Jul 2015
Compliance record
MSHA citations since 2000
53
citations
17
significant & substantial
$7,050
proposed penalties
$7,050
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Wm Becker & Sons Stone Co Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
41
inspections on record
386
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: 386 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Lot 340 Quarry 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
53 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-07-01.
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.
32.1%
significant & substantial
1.9%
high negligence or reckless
32.1%
reasonably likely or greater
47.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 26.4% low, 71.7% moderate, 1.9% 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: 2024-05-08
0%
of limit-tested samples over the exposure limit
7
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz4
  • Respirable dust, <.1mg2
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-05-08 Respirable dust, <.1mg 0 Cutting Mach Operator
2012-12-11 Quartz, respirable, >1% Qtz 0.72 2.97 0.24 Laborer, Bullgang
2012-12-11 Nuisance dust, respirable, <1% Qtz 0.89 10 0.09 Laborer, Bullgang
2010-04-13 Quartz, respirable, >1% Qtz 0.27 1.79 0.15 Stone Polisher/Cutter
2010-04-13 Quartz, respirable, >1% Qtz 0.51 2.71 0.19 Washer Operator
2010-04-13 Quartz, respirable, >1% Qtz 0.15 1.67 0.09 Utility Man
2010-04-13 Respirable dust, <.1mg 0 Mechanic
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. Wm Becker & Sons Stone Co Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 2
2024 2
2023 2
2022 3
2021 4
2020 2
2019 3
2018 3
2017 3
2016 3
2015 4
2014 3
2013 4
2012 6
2011 4
2010 6
2009 5
2008 6
2007 6
2006 6
2005 5
2004 3
2003 3
2002 3
2001 4
2000 6
Source: MSHA quarterly employment and production, updated weekly.

Lot 340 Quarry sits in Dubuque County, Iowa, 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.
Dubuque County, Iowa · Population 98,948
0.0%
Mining share of county employment
$75,919
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 1,522 0 0 0.0
2026 Q1 520 0 0 0.0
2025 Q4 1,040 0 0 0.0
2025 Q3 1,040 2 2 1923.1
2025 Q2 1,040 0 0 0.0
2025 Q1 560 3 2 5357.1
2024 Q4 780 0 0 0.0
2024 Q3 780 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 492 1 0 2032.5
2024 Q1 40 0 0 0.0
2023 Q4 1,040 0 0 0.0
2023 Q3 1,040 0 0 0.0
2023 Q2 840 0 0 0.0
2022 Q4 1,520 0 0 0.0
2022 Q3 1,560 0 0 0.0
2022 Q2 1,000 0 0 0.0
2022 Q1 40 0 0 0.0
2021 Q4 880 0 0 0.0
2021 Q3 2,080 0 0 0.0
2021 Q2 1,200 0 0 0.0
2021 Q1 880 0 0 0.0
2020 Q4 520 0 0 0.0
2020 Q3 1,240 0 0 0.0
2020 Q2 1,560 0 0 0.0
2020 Q1 200 0 0 0.0
2019 Q4 1,200 0 0 0.0
2019 Q3 1,560 0 0 0.0
2019 Q2 2,040 4 1 1960.8
2019 Q1 0 0 0
2018 Q4 1,720 0 0 0.0
2018 Q3 2,080 0 0 0.0
2018 Q2 1,640 1 0 609.8
2018 Q1 0 0 0
2017 Q4 1,440 0 0 0.0
2017 Q3 2,080 0 0 0.0
2017 Q2 1,920 1 1 520.8
2017 Q1 0 0 0
2016 Q4 1,490 0 0 0.0
2016 Q3 2,185 3 1 1373.0
2016 Q2 1,571 0 0 0.0
2016 Q1 0 0 0
2015 Q4 1,727 0 0 0.0
2015 Q3 2,080 0 0 0.0
2015 Q2 1,880 0 0 0.0
2015 Q1 120 0 0 0.0
2014 Q4 1,167 0 0 0.0
2014 Q3 1,560 1 1 641.0
2014 Q2 1,520 0 0 0.0
2014 Q1 1,173 0 0 0.0
2013 Q4 1,826 0 0 0.0
2013 Q3 2,189 0 0 0.0
2013 Q2 2,852 0 0 0.0
2013 Q1 0 0 0
2012 Q4 2,909 4 0 1375.0
2012 Q3 2,767 0 0 0.0
2012 Q2 2,736 0 0 0.0
2012 Q1 399 0 0 0.0
2011 Q4 2,325 3 1 1290.3
2011 Q3 2,248 0 0 0.0
2011 Q2 2,030 5 2 2463.1
2011 Q1 0 0 0
2010 Q4 2,370 0 0 0.0
2010 Q3 2,363 0 0 0.0
2010 Q2 2,380 7 4 2941.2
2010 Q1 196 1 0 5102.0
2009 Q4 2,144 0 0 0.0
2009 Q3 2,184 0 0 0.0
2009 Q2 2,277 0 0 0.0
2009 Q1 176 0 0 0.0
2008 Q4 1,963 0 0 0.0
2008 Q3 2,629 0 0 0.0
2008 Q2 2,742 0 0 0.0
2008 Q1 2,263 0 0 0.0
2007 Q4 2,806 0 0 0.0
2007 Q3 2,624 0 0 0.0
2007 Q2 2,735 1 0 365.6
2007 Q1 1,402 0 0 0.0
2006 Q4 2,250 0 0 0.0
2006 Q3 2,487 0 0 0.0
2006 Q2 2,612 0 0 0.0
2006 Q1 2,199 0 0 0.0
2005 Q4 2,622 0 0 0.0
2005 Q3 2,540 0 0 0.0
2005 Q2 1,911 0 0 0.0
2005 Q1 561 0 0 0.0
2004 Q4 1,868 0 0 0.0
2004 Q3 1,202 0 0 0.0
2004 Q2 1,305 4 0 3065.1
2004 Q1 520 0 0 0.0
2003 Q4 1,302 0 0 0.0
2003 Q3 860 6 1 6976.7
2003 Q2 817 0 0 0.0
2003 Q1 523 0 0 0.0
2002 Q4 1,480 0 0 0.0
2002 Q3 1,176 0 0 0.0
2002 Q2 975 0 0 0.0
2002 Q1 1,205 0 0 0.0
2001 Q4 1,159 0 0 0.0
2001 Q3 805 4 1 4968.9
2001 Q2 928 0 0 0.0
2001 Q1 619 0 0 0.0
2000 Q4 2,410 0 0 0.0
2000 Q3 2,550 0 0 0.0
2000 Q2 2,580 1 0 387.6
2000 Q1 1,880 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2015 · 1 incident

July 10, 2015 IA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Wm Becker & Sons Stone Co Inc · Struck by... (Not Elsewhere Classified)

Cut finger tip open.

2011 · 1 incident

May 26, 2011 IA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Wm Becker & Sons Stone Co Inc · Struck by flying object

Trigger was engaged when plugged in the cup grinder fell to the ground and the cup shattered and a piece hit the EE in the leg breaking the bone.

2000 · 1 incident

April 10, 2000 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Wm Becker & Sons Stone Co Inc · Struck by... (Not Elsewhere Classified)

GRINDING EDGE OF STONE MANTEL, GRINDER JUMPED AND HURT HIM. RUSHING TO FINISH TO GO HOME.

1999 · 1 incident

1997 · 1 incident

August 6, 1997 IA · Metal/Non-Metal groundman, yardman HANDLING OF MATERIALS
Wm Becker & Sons Stone Co Inc · Caught in, under or between (Not Elsewhere Classified)

LAYING STONE ON SAWBED - MOVED IT & A PIECE OF STONE [CHIP] UNDER SIDE CUT FINGER TIP OFF. LEFT RING FINGER.

1991 · 2 incidents

August 15, 1991 IA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Wm Becker & Sons Stone Co Inc · Caught in, under or between a moving and a stationary object

WENT TO TAKE ROCK FROM BREAKER & HAND GOT CAUGHT AGAINST BAR.