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L-Bob Gravel: 89 MSHA citations Metal/Non-Metal

Bristol, Elkhart County, IN  ·  Active
MSHA Mine ID: 1201258

L-Bob Gravel has $16K 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
1
Years on record
2007
Latest incident
Nov 2007
Compliance record
MSHA citations since 2003
89
citations
34
significant & substantial
$15,791
proposed penalties
$15,791
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Niblock Excavating Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
34
inspections on record
425
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: 425 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

L-Bob Gravel has $16K 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.
$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
89 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-02-23.
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.
38.2%
significant & substantial
7.9%
high negligence or reckless
38.2%
reasonably likely or greater
36.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.4% low, 79.8% moderate, 7.9% 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: 2025-06-04
0%
of limit-tested samples over the exposure limit
6
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-06-04 Quartz, respirable, >1% Qtz 0.22 0.74 0.30 Front-end Loader Operator
2024-04-17 Respirable dust, <.1mg 0 Utility Man
2021-05-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-05-12 Respirable dust, <.1mg 0 Dragline Operator
2011-10-18 Unlisted Particulate, respirable, <1% Qtz 0.38 Front-end Loader Operator
2011-10-18 Respirable dust, <.1mg 0 Dragline Operator
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. L-Bob Gravel 1950 to 1987
  2. Rieth-Riley Construction Company Inc 1980 to 1984
  3. Niblock Excavating Inc 1987 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 7
2025 8
2024 9
2023 7
2022 11
2021 7
2020 8
2019 11
2018 8
2017 8
2016 6
2015 9
2014 8
2013 6
2012 6
2011 3
2010 6
2009 3
2008 6
2007 6
2006 7
2005 7
2004 7
2003 9
2002 8
2001 8
2000 7
Source: MSHA quarterly employment and production, updated weekly.

L-Bob Gravel sits in Elkhart County, Indiana, 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.
Elkhart County, Indiana · Population 206,868
0.0%
Mining share of county employment
$65,617
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 1,517 0 0 0.0
2026 Q1 133 1 0 7518.8
2025 Q4 1,154 0 0 0.0
2025 Q3 1,519 0 0 0.0
2025 Q2 1,475 3 0 2033.9
2025 Q1 45 4 3 88888.9
2024 Q4 1,559 0 0 0.0
2024 Q3 2,153 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,429 13 8 9097.3
2024 Q1 152 0 0 0.0
2023 Q4 934 0 0 0.0
2023 Q3 1,305 0 0 0.0
2023 Q2 1,330 0 0 0.0
2023 Q1 52 5 1 96153.8
2022 Q4 791 0 0 0.0
2022 Q3 953 0 0 0.0
2022 Q2 1,096 2 1 1824.8
2022 Q1 545 0 0 0.0
2021 Q4 886 0 0 0.0
2021 Q3 951 0 0 0.0
2021 Q2 811 5 1 6165.2
2021 Q1 4 0 0 0.0
2020 Q4 1,081 0 0 0.0
2020 Q3 1,324 0 0 0.0
2020 Q2 1,076 0 0 0.0
2020 Q1 106 9 3 84905.7
2019 Q4 1,011 0 0 0.0
2019 Q3 1,335 0 0 0.0
2019 Q2 1,269 1 0 788.0
2019 Q1 300 0 0 0.0
2018 Q4 1,357 0 0 0.0
2018 Q3 1,739 0 0 0.0
2018 Q2 1,398 0 0 0.0
2018 Q1 344 0 0 0.0
2017 Q4 445 3 1 6741.6
2017 Q3 1,505 0 0 0.0
2017 Q2 1,322 1 1 756.4
2017 Q1 489 0 0 0.0
2016 Q4 1,077 0 0 0.0
2016 Q3 1,042 0 0 0.0
2016 Q2 1,121 4 0 3568.2
2016 Q1 2 0 0 0.0
2015 Q4 813 0 0 0.0
2015 Q3 1,399 0 0 0.0
2015 Q2 1,048 3 2 2862.6
2015 Q1 961 0 0 0.0
2014 Q4 1,218 0 0 0.0
2014 Q3 1,418 0 0 0.0
2014 Q2 1,197 1 0 835.4
2014 Q1 10 0 0 0.0
2013 Q4 1,018 0 0 0.0
2013 Q3 1,266 0 0 0.0
2013 Q2 1,002 0 0 0.0
2013 Q1 10 0 0 0.0
2012 Q4 1,199 1 0 834.0
2012 Q3 1,539 0 0 0.0
2012 Q2 748 0 0 0.0
2012 Q1 4 0 0 0.0
2011 Q4 582 3 2 5154.6
2011 Q3 579 0 0 0.0
2011 Q2 541 0 0 0.0
2011 Q1 0 0 0
2010 Q4 7,916 1 0 126.3
2010 Q3 308 0 0 0.0
2010 Q2 967 0 0 0.0
2010 Q1 0 0 0
2009 Q4 796 0 0 0.0
2009 Q3 225 13 8 57777.8
2009 Q2 540 0 0 0.0
2009 Q1 0 0 0
2008 Q4 1,303 0 0 0.0
2008 Q3 1,380 1 0 724.6
2008 Q2 1,425 0 0 0.0
2008 Q1 118 0 0 0.0
2007 Q4 1,329 1 1 752.4
2007 Q3 1,793 0 0 0.0
2007 Q2 2,255 4 2 1773.8
2007 Q1 71 0 0 0.0
2006 Q4 1,147 0 0 0.0
2006 Q3 1,409 4 0 2838.9
2006 Q2 2,754 0 0 0.0
2006 Q1 731 0 0 0.0
2005 Q4 2,286 0 0 0.0
2005 Q3 2,810 2 0 711.7
2005 Q2 2,308 0 0 0.0
2005 Q1 4 0 0 0.0
2004 Q4 1,430 0 0 0.0
2004 Q3 1,871 0 0 0.0
2004 Q2 1,942 1 0 514.9
2004 Q1 589 0 0 0.0
2003 Q4 3,055 0 0 0.0
2003 Q3 3,826 0 0 0.0
2003 Q2 2,246 3 0 1335.7
2003 Q1 538 0 0 0.0
2002 Q4 2,839 0 0 0.0
2002 Q3 2,774 0 0 0.0
2002 Q2 2,284 0 0 0.0
2002 Q1 1,066 0 0 0.0
2001 Q4 2,384 0 0 0.0
2001 Q3 2,786 0 0 0.0
2001 Q2 2,263 0 0 0.0
2001 Q1 1,214 0 0 0.0
2000 Q4 2,868 0 0 0.0
2000 Q3 4,573 0 0 0.0
2000 Q2 4,378 0 0 0.0
2000 Q1 2,085 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2007 · 1 incident

November 9, 2007 IN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Niblock Excavating Inc · Struck by... (Not Elsewhere Classified)

The dragline cable broke and fell on the roof of the cab breaking the plexiglass window which in turn came into the cab cutting the operator on the back of the head.