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LT106 Jaw: 3 MSHA citations Metal/Non-Metal

Kernen Construction · Surface
Blue Lake, Humboldt County, CA  ·  Intermittent
MSHA Mine ID: 0405899

LT106 Jaw has $587 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
0
Years on record
—
Latest incident
—
Compliance record
MSHA citations since 2019
3
citations
1
significant & substantial
$587
proposed penalties
$587
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
17
inspections on record
145
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: 145 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

LT106 Jaw has $587 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.
$587
proposed penalties
$587
current assessed
$587
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-08-28.
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.
33.3%
significant & substantial
0.0%
high negligence or reckless
33.3%
reasonably likely or greater
33.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% moderate, 0.0% 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: 2024-02-28
1
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg1
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-02-28 Respirable dust, <.1mg 0 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. Kernen Construction 2015 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 1
2024 1
2023 2
2022 1
2021 3
2020 3
2019 3
2018 4
2017 3
2016 3
2015 3
Source: MSHA quarterly employment and production, updated weekly.

LT106 Jaw sits in Humboldt County, California, where the Census mining category is 0.1% 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.
Humboldt County, California · Population 135,418
0.1%
Mining share of county employment
$61,135
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 0 0 0
2026 Q1 0 0 0
2025 Q4 616 0 0 0.0
2025 Q3 0 0 0
2025 Q2 0 0 0
2025 Q1 1 0 0 0.0
2024 Q4 0 0 0
2024 Q3 1 2 0 2000000.0
Show 36 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 490 0 0 0.0
2024 Q1 251 0 0 0.0
2023 Q4 693 0 0 0.0
2023 Q3 609 0 0 0.0
2023 Q2 1,087 0 0 0.0
2023 Q1 0 0 0
2022 Q4 1,176 0 0 0.0
2022 Q3 0 0 0
2022 Q2 0 0 0
2022 Q1 0 0 0
2021 Q4 1,219 0 0 0.0
2021 Q3 1,217 0 0 0.0
2021 Q2 157 0 0 0.0
2021 Q1 1 0 0 0.0
2020 Q4 113 0 0 0.0
2020 Q3 1,327 0 0 0.0
2020 Q2 1,015 0 0 0.0
2020 Q1 754 0 0 0.0
2019 Q4 862 0 0 0.0
2019 Q3 610 1 1 1639.3
2019 Q2 531 0 0 0.0
2019 Q1 0 0 0
2018 Q4 2,099 0 0 0.0
2018 Q3 832 0 0 0.0
2018 Q2 2,038 0 0 0.0
2017 Q4 547 0 0 0.0
2017 Q3 242 0 0 0.0
2017 Q2 944 0 0 0.0
2017 Q1 344 0 0 0.0
2016 Q4 447 0 0 0.0
2016 Q3 203 0 0 0.0
2016 Q2 750 0 0 0.0
2016 Q1 216 0 0 0.0
2015 Q4 256 0 0 0.0
2015 Q3 625 0 0 0.0
2015 Q2 99 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.