Mining Incidents

Ten Mile River Plant: 67 MSHA citations Metal/Non-Metal

Geo Aggregates · Surface
Controlled by Brian K Hurt
MENDOCINO, Mendocino County, CA  ·  Intermittent
MSHA Mine ID: 0401755

Ten Mile River Plant has $11K 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
3
Years on record
1992–1997
Latest incident
May 1997
Compliance record
MSHA citations since 2000
67
citations
19
significant & substantial
$11,214
proposed penalties
$11,214
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
43
inspections on record
591
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: 591 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Ten Mile River Plant has $11K 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
66 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-07-14.
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.
28.8%
significant & substantial
4.5%
high negligence or reckless
28.8%
reasonably likely or greater
57.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 10.6% low, 84.8% moderate, 4.5% 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: 2022-07-13, 4 years ago
0%
of limit-tested samples over the exposure limit
10
samples
3
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg7
  • Quartz, respirable, >1% Qtz3
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-07-13 Respirable dust, <.1mg 0 Backhoe Operator
2016-03-29 Quartz, respirable, >1% Qtz 0.15 1.3 0.12 Lab Technician
2013-08-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-08-14 Respirable dust, <.1mg 0 Crusher Oper/Worker
2013-08-14 Quartz, respirable, >1% Qtz 0.22 1.1 0.20 Belt Cleaner
2009-02-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-02-18 Respirable dust, <.1mg 0 Cleanup Man
2009-02-18 Quartz, respirable, >1% Qtz 0.16 1.51 0.11 Utility Man
2005-06-07 Respirable dust, <.1mg 0 Laborer, Bullgang
2005-06-07 Respirable dust, <.1mg 0 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. Baxman Gravel Co Inc 1950 to 2012
  2. Geo Aggregates 2012 to 2018
  3. Geo Aggregates 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 0
2023 2
2022 4
2021 2
2020 1
2019 1
2018 1
2017 4
2016 4
2015 2
2014 4
2013 5
2012 5
2010 4
2009 4
2008 5
2007 4
2006 4
2005 3
2004 3
2003 3
2002 2
2001 2
2000 3
Source: MSHA quarterly employment and production, updated weekly.

Ten Mile River Plant sits in Mendocino County, California, where the Census mining category is 0.3% 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.
Mendocino County, California · Population 90,709
0.3%
Mining share of county employment
$64,688
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 25 0 0 0.0
2026 Q1 64 0 0 0.0
2025 Q4 317 0 0 0.0
2025 Q3 161 0 0 0.0
2025 Q2 254 0 0 0.0
2025 Q1 190 0 0 0.0
2024 Q4 0 0 0
2024 Q3 0 0 0
Show 94 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 22 0 0 0.0
2023 Q2 62 0 0 0.0
2023 Q1 62 0 0 0.0
2022 Q4 102 0 0 0.0
2022 Q3 31 1 0 32258.1
2022 Q2 14 0 0 0.0
2022 Q1 151 0 0 0.0
2021 Q4 63 0 0 0.0
2021 Q3 22 0 0 0.0
2021 Q2 76 0 0 0.0
2021 Q1 13 0 0 0.0
2020 Q4 145 0 0 0.0
2020 Q3 41 0 0 0.0
2020 Q2 0 0 0
2020 Q1 11 0 0 0.0
2019 Q4 19 0 0 0.0
2019 Q3 33 0 0 0.0
2019 Q2 0 0 0
2019 Q1 0 2 0
2018 Q4 0 0 0
2018 Q3 0 2 1
2018 Q2 0 0 0
2018 Q1 68 0 0 0.0
2017 Q4 137 0 0 0.0
2017 Q3 700 0 0 0.0
2017 Q2 820 0 0 0.0
2017 Q1 549 6 2 10929.0
2016 Q4 173 0 0 0.0
2016 Q3 1,507 0 0 0.0
2016 Q2 295 0 0 0.0
2016 Q1 312 8 2 25641.0
2015 Q4 764 0 0 0.0
2015 Q3 209 1 0 4784.7
2015 Q2 92 0 0 0.0
2015 Q1 302 0 0 0.0
2014 Q4 842 8 2 9501.2
2014 Q3 1,489 0 0 0.0
2014 Q2 768 0 0 0.0
2014 Q1 143 0 0 0.0
2013 Q4 1,257 0 0 0.0
2013 Q3 2,024 8 2 3952.6
2013 Q2 1,552 0 0 0.0
2013 Q1 1,049 0 0 0.0
2012 Q4 918 0 0 0.0
2012 Q3 2,502 2 0 799.4
2012 Q2 1,587 0 0 0.0
2012 Q1 503 0 0 0.0
2010 Q4 330 0 0 0.0
2010 Q3 814 0 0 0.0
2010 Q2 756 0 0 0.0
2010 Q1 99 3 2 30303.0
2009 Q4 746 0 0 0.0
2009 Q3 805 0 0 0.0
2009 Q2 1,251 2 0 1598.7
2009 Q1 887 0 0 0.0
2008 Q4 1,278 0 0 0.0
2008 Q3 2,462 1 0 406.2
2008 Q2 1,475 0 0 0.0
2008 Q1 602 0 0 0.0
2007 Q4 1,617 0 0 0.0
2007 Q3 2,317 0 0 0.0
2007 Q2 670 4 3 5970.1
2007 Q1 339 0 0 0.0
2006 Q4 1,253 5 1 3990.4
2006 Q3 695 0 0 0.0
2006 Q2 488 1 0 2049.2
2006 Q1 235 4 1 17021.3
2005 Q4 772 0 0 0.0
2005 Q3 892 0 0 0.0
2005 Q2 787 0 0 0.0
2005 Q1 276 3 1 10869.6
2004 Q4 644 0 0 0.0
2004 Q3 753 2 0 2656.0
2004 Q2 1,096 0 0 0.0
2004 Q1 467 0 0 0.0
2003 Q4 710 0 0 0.0
2003 Q3 1,141 0 0 0.0
2003 Q2 816 0 0 0.0
2003 Q1 741 0 0 0.0
2002 Q4 760 1 1 1315.8
2002 Q3 817 0 0 0.0
2002 Q2 845 0 0 0.0
2002 Q1 396 0 0 0.0
2001 Q4 480 0 0 0.0
2001 Q3 892 0 0 0.0
2001 Q2 850 0 0 0.0
2001 Q1 565 0 0 0.0
2000 Q4 1,047 1 0 955.1
2000 Q3 1,277 0 0 0.0
2000 Q2 1,643 0 0 0.0
2000 Q1 811 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

1997 · 1 incident

May 20, 1997 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Baxman Gravel Co Inc · Caught in, under or between (Not Elsewhere Classified)

OIL CAN JAMMED WHILE OILING CRUSHER, REACHED INTO GET CAN WHEN BELTS ENGAGED AND CRUSHED HAND.

1992 · 2 incidents

June 15, 1992 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Baxman Gravel Co Inc · Fall from ladders

SLIPPED ON LADDER & INJURED RIGHT KNEE

April 30, 1992 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Baxman Gravel Co Inc · Struck against a moving object

WHLE PRYING ROCK LOOSE, ROCK MOVED.