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EL JAY: 25 MSHA citations Metal/Non-Metal

Mobile Concrete Inc · Surface
Controlled by Arthur D Boatright II
Mills, Natrona County, WY  ·  Intermittent
MSHA Mine ID: 4801516

EL JAY has $3K 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
1998
Latest incident
May 1998
Compliance record
MSHA citations since 2002
25
citations
7
significant & substantial
$3,296
proposed penalties
$3,296
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Mobile Concrete Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2001
28
inspections on record
356
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: 356 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

EL JAY has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
24 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-06.
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.
29.2%
significant & substantial
8.3%
high negligence or reckless
29.2%
reasonably likely or greater
41.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 91.7% moderate, 8.3% 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: 2026-05-06
17%
of limit-tested samples over the exposure limit
13
samples
6
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz71 over
  • Respirable dust, <.1mg3
  • Unlisted Particulate, total, <1% Qtz3
Show the individual readings (13)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-06-29 Quartz, respirable, >1% Qtz 0.61 0.41 1.49 Crusher Oper/Worker
2026-05-06 Quartz, respirable, >1% Qtz 0.19 Dry Screen Plant Operator
2026-05-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-08-26 Unlisted Particulate, total, <1% Qtz 0 Utility Man
2025-08-26 Unlisted Particulate, total, <1% Qtz 0 Front-end Loader Operator
2025-08-26 Unlisted Particulate, total, <1% Qtz 0 Front-end Loader Operator
2020-06-24 Quartz, respirable, >1% Qtz 0.13 0.47 0.28 Front-end Loader Operator
2020-06-24 Quartz, respirable, >1% Qtz 0.45 0.48 0.94 Crusher Oper/Worker
2020-06-24 Quartz, respirable, >1% Qtz 0.2 0.46 0.43 Front-end Loader Operator
2020-06-24 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2016-07-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-07-26 Quartz, respirable, >1% Qtz 0.33 1.16 0.28 Crusher Oper/Worker
2002-07-08 Quartz, respirable, >1% Qtz 0.38 2.37 0.16 Laborer, Bullgang
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. Mobile Concrete Inc 1993 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 2
2024 0
2023 0
2022 1
2021 2
2020 3
2019 2
2018 4
2017 0
2016 3
2014 0
2013 0
2011 0
2010 1
2009 5
2008 5
2007 6
2006 6
2005 7
2004 5
2003 3
2002 4
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

EL JAY sits in Natrona County, Wyoming, where the Census mining category is 6.5% 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.
Natrona County, Wyoming · Population 79,735
6.5%
Mining share of county employment
$71,247
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 1,836 2 0 1089.3
2026 Q1 1,752 0 0 0.0
2025 Q4 0 0 0
2025 Q3 418 3 0 7177.0
2025 Q2 779 0 0 0.0
2025 Q1 2,699 0 0 0.0
2024 Q4 0 0 0
2024 Q3 0 0 0
Show 79 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 0 0 0
2024 Q1 0 0 0
2023 Q4 0 0 0
2023 Q3 0 0 0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 28 0 0 0.0
2022 Q3 628 1 1 1592.4
2022 Q2 0 0 0
2022 Q1 0 0 0
2021 Q4 594 0 0 0.0
2021 Q3 546 2 1 3663.0
2021 Q2 0 0 0
2021 Q1 0 0 0
2020 Q4 1,479 0 0 0.0
2020 Q3 2,187 0 0 0.0
2020 Q2 658 2 0 3039.5
2020 Q1 0 0 0
2019 Q4 1,461 0 0 0.0
2019 Q3 718 0 0 0.0
2019 Q2 0 0 0
2019 Q1 0 0 0
2018 Q4 1,205 0 0 0.0
2018 Q3 565 0 0 0.0
2017 Q2 0 0 0
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 1,459 4 1 2741.6
2016 Q2 1,368 0 0 0.0
2014 Q3 0 0 0
2014 Q2 0 0 0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 176 0 0 0.0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q2 604 0 0 0.0
2009 Q4 1,042 0 0 0.0
2009 Q3 1,417 4 1 2822.9
2009 Q2 1,034 0 0 0.0
2009 Q1 1,152 0 0 0.0
2008 Q4 1,421 0 0 0.0
2008 Q3 1,759 0 0 0.0
2008 Q2 444 2 0 4504.5
2008 Q1 571 0 0 0.0
2007 Q4 497 0 0 0.0
2007 Q3 442 0 0 0.0
2007 Q2 920 0 0 0.0
2007 Q1 1,253 0 0 0.0
2006 Q4 1,016 0 0 0.0
2006 Q3 655 0 0 0.0
2006 Q2 1,480 0 0 0.0
2006 Q1 1,627 0 0 0.0
2005 Q4 690 0 0 0.0
2005 Q3 725 1 1 1379.3
2005 Q2 2,145 0 0 0.0
2005 Q1 1,688 3 2 1777.3
2004 Q4 2,969 0 0 0.0
2004 Q3 1,937 0 0 0.0
2004 Q2 382 0 0 0.0
2004 Q1 954 0 0 0.0
2003 Q4 1,076 0 0 0.0
2003 Q3 1,104 0 0 0.0
2003 Q2 539 0 0 0.0
2003 Q1 406 0 0 0.0
2002 Q4 1,308 1 0 764.5
2002 Q3 0 0 0
2002 Q2 1,064 0 0 0.0
2002 Q1 2,268 0 0 0.0
2001 Q4 677 0 0 0.0
2001 Q3 822 0 0 0.0
2001 Q2 212 0 0 0.0
2001 Q1 352 0 0 0.0
2000 Q4 289 0 0 0.0
2000 Q3 1,001 0 0 0.0
2000 Q2 2,330 0 0 0.0
2000 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1998 · 1 incident

May 11, 1998 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mobile Concrete Inc · Fall from machine

EE WAS DOING MAINTENANCE ON TOP OF EXCAVATOR--UNBOLTED GRATE OVER ENGINE--PUT WEIGHT ON UNBOLTED GRATE AND FELL APPROX. 7' HOLDING GRATING WHILE FALLING--HIT P/U TRUCK WITH BACK BEFORE HITTING GROUND AND ANOTHER EE. LEFT KNEE BENT BACKWARDS.