Mining Incidents

Kelsey Creek Mill: 42 MSHA citations Metal/Non-Metal

Controlled by Richard D Thorn
Kelseyville, Lake County, CA  ·  Intermittent
MSHA Mine ID: 0401728

Kelsey Creek Mill 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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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2000
42
citations
9
significant & substantial
$7,055
proposed penalties
$7,055
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
39
inspections on record
333
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: 333 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Kelsey Creek Mill 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
42 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-11.
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.
21.4%
significant & substantial
4.8%
high negligence or reckless
21.4%
reasonably likely or greater
50.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.3% low, 81.0% moderate, 4.8% 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: 2020-03-11, 6 years ago
0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz1
  • Respirable dust, <.1mg1
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-03-11 Respirable dust, <.1mg 0 Crusher Oper/Worker
2015-04-14 Quartz, respirable, >1% Qtz 0.13 1 0.13 Front-end Loader 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. Clearlake Redi Mix Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 1
2024 2
2023 2
2022 2
2021 1
2020 1
2019 1
2018 1
2017 1
2016 1
2015 1
2014 2
2013 1
2012 1
2011 2
2010 1
2009 1
2008 2
2007 1
2006 1
2005 1
2004 1
2003 1
2002 1
2001 1
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Kelsey Creek Mill sits in Lake County, California, where the Census mining category is 0.5% 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.
Lake County, California · Population 68,139
0.5%
Mining share of county employment
$58,738
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 451 0 0 0.0
2026 Q1 398 2 0 5025.1
2025 Q4 408 0 0 0.0
2025 Q3 376 0 0 0.0
2025 Q2 295 0 0 0.0
2025 Q1 246 4 1 16260.2
2024 Q4 269 0 0 0.0
2024 Q3 337 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 291 0 0 0.0
2024 Q1 239 0 0 0.0
2023 Q4 334 0 0 0.0
2023 Q3 365 0 0 0.0
2023 Q2 400 0 0 0.0
2023 Q1 221 0 0 0.0
2022 Q4 297 0 0 0.0
2022 Q3 336 0 0 0.0
2022 Q2 330 0 0 0.0
2022 Q1 262 0 0 0.0
2021 Q4 237 0 0 0.0
2021 Q3 275 0 0 0.0
2021 Q2 344 2 0 5814.0
2021 Q1 294 0 0 0.0
2020 Q4 255 0 0 0.0
2020 Q3 257 0 0 0.0
2020 Q2 350 0 0 0.0
2020 Q1 291 3 0 10309.3
2019 Q4 220 0 0 0.0
2019 Q3 313 0 0 0.0
2019 Q2 268 0 0 0.0
2019 Q1 103 3 0 29126.2
2018 Q4 209 0 0 0.0
2018 Q3 218 2 0 9174.3
2018 Q2 429 0 0 0.0
2018 Q1 451 0 0 0.0
2017 Q4 396 0 0 0.0
2017 Q3 435 0 0 0.0
2017 Q2 275 0 0 0.0
2017 Q1 240 0 0 0.0
2016 Q4 269 7 1 26022.3
2016 Q3 225 0 0 0.0
2016 Q2 259 0 0 0.0
2016 Q1 228 0 0 0.0
2015 Q4 368 0 0 0.0
2015 Q3 304 0 0 0.0
2015 Q2 311 1 0 3215.4
2015 Q1 196 0 0 0.0
2014 Q4 247 0 0 0.0
2014 Q3 227 0 0 0.0
2014 Q2 191 0 0 0.0
2014 Q1 263 0 0 0.0
2013 Q4 149 0 0 0.0
2013 Q3 185 0 0 0.0
2013 Q2 155 0 0 0.0
2013 Q1 77 0 0 0.0
2012 Q4 122 0 0 0.0
2012 Q3 147 0 0 0.0
2012 Q2 173 2 1 11560.7
2012 Q1 130 0 0 0.0
2011 Q4 164 0 0 0.0
2011 Q3 171 0 0 0.0
2011 Q2 57 0 0 0.0
2011 Q1 40 0 0 0.0
2010 Q4 109 1 0 9174.3
2010 Q3 117 0 0 0.0
2010 Q2 102 0 0 0.0
2010 Q1 90 0 0 0.0
2009 Q4 51 0 0 0.0
2009 Q3 116 0 0 0.0
2009 Q2 64 0 0 0.0
2009 Q1 88 7 4 79545.5
2008 Q4 101 0 0 0.0
2008 Q3 90 0 0 0.0
2008 Q2 82 0 0 0.0
2008 Q1 24 0 0 0.0
2007 Q4 24 2 1 83333.3
2007 Q3 8 0 0 0.0
2007 Q2 8 0 0 0.0
2007 Q1 8 0 0 0.0
2006 Q4 8 1 1 125000.0
2006 Q3 7 0 0 0.0
2006 Q2 7 1 0 142857.1
2006 Q1 10 0 0 0.0
2005 Q4 25 0 0 0.0
2005 Q3 18 0 0 0.0
2005 Q2 24 0 0 0.0
2005 Q1 22 0 0 0.0
2004 Q4 35 0 0 0.0
2004 Q3 46 0 0 0.0
2004 Q2 40 0 0 0.0
2004 Q1 10 0 0 0.0
2003 Q4 18 0 0 0.0
2003 Q3 10 0 0 0.0
2003 Q2 121 1 0 8264.5
2003 Q1 8 0 0 0.0
2002 Q4 86 0 0 0.0
2002 Q3 97 0 0 0.0
2002 Q2 212 0 0 0.0
2002 Q1 5 0 0 0.0
2001 Q4 27 0 0 0.0
2001 Q3 100 0 0 0.0
2001 Q2 57 0 0 0.0
2001 Q1 6 0 0 0.0
2000 Q4 163 3 0 18404.9
2000 Q3 133 0 0 0.0
2000 Q2 15 0 0 0.0
2000 Q1 1 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.