Mining Incidents

Cedar Bluff: 136 MSHA citations Metal/Non-Metal

Sierra Frac Sand, LLC · Surface
Controlled by Kim Smith; Pamela Smith
Benton, LA, Bossier County, LA  ·  Active
MSHA Mine ID: 1601575

Cedar Bluff has $192K in proposed MSHA penalties and $30K outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2018
136
citations
42
significant & substantial
$191,944
proposed penalties
$153,639
paid to date
80% of proposed penalties paid to date, a $38,305 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
30
inspections on record
692
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: 692 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Cedar Bluff has $192K in proposed MSHA penalties and $30K outstanding across 4 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.
$192K
proposed penalties
$183K
current assessed
$154K
paid to date
$30K
outstanding
112 assessments are final orders; 4 contested dockets.
Of $70K in penalties contested before the Commission, $59K was upheld in final decisions.
As of the most recent assessment on 2026-04-29.
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.
30.9%
significant & substantial
8.1%
high negligence or reckless
30.9%
reasonably likely or greater
41.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 11.0% low, 80.9% moderate, 8.1% 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.
38 citations taken to the federal commission · 28% of citations on record
  • Settled 12 · 32%
  • Vacated or withdrawn 2 · 5%
  • Still open 24 · 63%
83%
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 6 decided S&S contests · industry: 79%
15%
Penalty reduction in decided contests
$70K proposed, $59K 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 2025-09-10.
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
CENT 2024-0153 Settlement Sullivan 2024 $37K → $35K
CENT 2024-0152 Settlement Sullivan 2024 $27K → $19K
CENT 2020-0186 Settlement Manning 2020 $6K → $5K
CENT 2025-0366 Decision pending
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: 2025-09-03
50%
of limit-tested samples over the exposure limit
12
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz21 over
  • Respirable dust, <.1mg10
Show the individual readings (12)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-05-18 Quartz, respirable, >1% Qtz 0.44 0.41 1.07 Truck Loader
2025-09-03 Respirable dust, <.1mg 0 Dredge/Barge Operator
2025-09-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-09-03 Respirable dust, <.1mg 0 Sand Filler (Wet)
2025-09-03 Respirable dust, <.1mg 0 Sand Filler (Wet)
2023-12-06 Respirable dust, <.1mg 0 Utility Man
2023-12-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-08-30 Respirable dust, <.1mg 0 Kiln/Dryer Operator
2022-05-18 Quartz, respirable, >1% Qtz 0.44 0.45 0.98 Truck Loader
2019-07-31 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-31 Respirable dust, <.1mg 0 Kiln/Dryer Operator
2019-07-31 Respirable dust, <.1mg 0 Bulldozer 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.

Cedar Bluff recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Louisiana, metal and nonmetal mining averaged 1.98 cases per 100 workers that year.
Year total case rate days-away fatal
2025 0.00 0.00 0.000
2024 0.00 0.00 0.000
2023 0.00 0.00 0.000
2022 0.00 0.00 0.000
2021 0.00 0.00 0.000
2020 0.00 0.00 0.000
2019 0.00 0.00 0.000
2018 0.00 0.00 0.000
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
  1. Sierra Frac Sand, LLC 2017 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 65
2025 64
2024 64
2023 104
2022 84
2021 61
2020 61
2019 91
2018 72
2017 30
Source: MSHA quarterly employment and production, updated weekly.

Cedar Bluff sits in Bossier Parish, Louisiana, where the Census mining category is 2.9% 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.
Bossier Parish, Louisiana · Population 129,134
2.9%
Mining share of county employment
$66,336
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 52,215 5 0 95.8
2026 Q1 47,193 6 1 127.1
2025 Q4 45,608 0 0 0.0
2025 Q3 46,983 24 7 510.8
2025 Q2 46,983 0 0 0.0
2025 Q1 43,532 1 0 23.0
2024 Q4 44,936 0 0 0.0
2024 Q3 43,154 2 0 46.3
Show 27 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 37,100 0 0 0.0
2024 Q1 42,930 2 1 46.6
2023 Q4 39,948 11 5 275.4
2023 Q3 52,399 20 3 381.7
2023 Q2 82,576 6 0 72.7
2023 Q1 110,077 0 0 0.0
2022 Q4 84,864 0 0 0.0
2022 Q3 65,666 0 0 0.0
2022 Q2 62,716 10 4 159.4
2022 Q1 56,676 9 6 158.8
2021 Q4 47,251 0 0 0.0
2021 Q3 45,353 0 0 0.0
2021 Q2 52,178 5 3 95.8
2021 Q1 43,001 5 2 116.3
2020 Q4 46,860 1 1 21.3
2020 Q3 40,813 0 0 0.0
2020 Q2 43,975 2 0 45.5
2020 Q1 48,179 2 2 41.5
2019 Q4 47,377 0 0 0.0
2019 Q3 48,087 5 2 104.0
2019 Q2 55,135 0 0 0.0
2019 Q1 129,674 7 2 54.0
2018 Q4 82,790 0 0 0.0
2018 Q3 66,929 7 1 104.6
2018 Q2 48,165 0 0 0.0
2018 Q1 35,044 3 1 85.6
2017 Q4 7,509 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.