Mining Incidents

Washplant: 40 MSHA citations Metal/Non-Metal

Conmat Group Inc · Surface
Hayden, ID, Kootenai County, ID  ·  Active
MSHA Mine ID: 1001871

Washplant has $4K 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 2001
40
citations
4
significant & substantial
$3,845
proposed penalties
$3,845
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
41
inspections on record
327
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: 327 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Washplant has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
40 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-08-13.
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.
10.0%
significant & substantial
2.5%
high negligence or reckless
10.0%
reasonably likely or greater
35.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.5% low, 85.0% moderate, 2.5% 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: 2025-08-13
0%
of limit-tested samples over the exposure limit
4
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz3
  • Respirable dust, <.1mg1
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-13 Respirable dust, <.1mg 0 Scraper Operator
2025-08-13 Quartz, respirable, >1% Qtz 0.35 0.58 0.60 Front-end Loader Operator
2020-06-08 Quartz, respirable, >1% Qtz 0.41 1.16 0.35 Front-end Loader Operator
2009-07-07 Quartz, respirable, >1% Qtz 0.17 0.49 0.35 Washer 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. Consolidated Construction Materials Inc 1991 to 1993
  2. Conmat 1993 to 2008
  3. Conmat Inc 2008 to 2023
  4. Conmat Group Inc 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 4
2024 5
2023 4
2022 5
2021 3
2020 3
2019 3
2018 2
2017 3
2016 2
2015 2
2014 2
2013 2
2012 4
2011 4
2010 3
2009 5
2008 2
2006 1
2005 1
2004 1
2003 1
2002 1
2001 1
2000 1
Source: MSHA quarterly employment and production, updated weekly.

Washplant sits in Kootenai County, Idaho, 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.
Kootenai County, Idaho · Population 177,736
0.5%
Mining share of county employment
$77,034
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 328 0 0 0.0
2026 Q1 387 0 0 0.0
2025 Q4 627 0 0 0.0
2025 Q3 561 2 0 3565.1
2025 Q2 613 0 0 0.0
2025 Q1 404 1 0 2475.2
2024 Q4 603 0 0 0.0
2024 Q3 445 0 0 0.0
Show 81 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 577 0 0 0.0
2024 Q1 283 0 0 0.0
2023 Q4 290 0 0 0.0
2023 Q3 491 0 0 0.0
2023 Q1 184 0 0 0.0
2022 Q4 311 0 0 0.0
2022 Q3 473 0 0 0.0
2022 Q2 362 1 0 2762.4
2022 Q1 243 0 0 0.0
2021 Q4 270 0 0 0.0
2021 Q3 593 0 0 0.0
2021 Q2 414 4 0 9661.8
2021 Q1 152 0 0 0.0
2020 Q4 0 0 0
2020 Q3 635 0 0 0.0
2020 Q2 558 1 0 1792.1
2020 Q1 107 0 0 0.0
2019 Q4 387 0 0 0.0
2019 Q3 279 0 0 0.0
2019 Q2 263 0 0 0.0
2019 Q1 111 0 0 0.0
2018 Q4 104 0 0 0.0
2018 Q3 357 0 0 0.0
2018 Q2 576 2 0 3472.2
2018 Q1 0 0 0
2017 Q4 263 0 0 0.0
2017 Q3 648 1 0 1543.2
2017 Q2 587 0 0 0.0
2017 Q1 155 0 0 0.0
2016 Q4 558 1 0 1792.1
2016 Q3 837 0 0 0.0
2016 Q2 878 0 0 0.0
2016 Q1 358 0 0 0.0
2015 Q4 293 1 0 3413.0
2015 Q3 526 0 0 0.0
2015 Q2 384 0 0 0.0
2015 Q1 266 0 0 0.0
2014 Q4 561 1 0 1782.5
2014 Q3 990 0 0 0.0
2014 Q2 578 0 0 0.0
2014 Q1 52 0 0 0.0
2013 Q4 374 1 0 2673.8
2013 Q3 657 0 0 0.0
2013 Q2 627 0 0 0.0
2013 Q1 196 0 0 0.0
2012 Q4 1,117 0 0 0.0
2012 Q3 3,873 0 0 0.0
2012 Q2 969 0 0 0.0
2012 Q1 77 0 0 0.0
2011 Q4 150 0 0 0.0
2011 Q3 5,379 0 0 0.0
2011 Q2 2,549 2 1 784.6
2011 Q1 0 0 0
2010 Q4 290 0 0 0.0
2010 Q3 2,995 1 0 333.9
2010 Q2 2,475 0 0 0.0
2010 Q1 0 0 0
2009 Q4 2,079 0 0 0.0
2009 Q3 4,676 5 0 1069.3
2009 Q2 3,563 0 0 0.0
2009 Q1 0 0 0
2008 Q4 372 0 0 0.0
2006 Q1 77 0 0 0.0
2005 Q4 120 5 1 41666.7
2005 Q3 360 0 0 0.0
2005 Q2 200 0 0 0.0
2005 Q1 100 0 0 0.0
2004 Q4 60 0 0 0.0
2004 Q1 60 0 0 0.0
2003 Q2 100 0 0 0.0
2002 Q3 300 0 0 0.0
2002 Q2 200 1 0 5000.0
2002 Q1 0 0 0
2001 Q4 0 0 0
2001 Q3 40 6 2 150000.0
2001 Q2 200 0 0 0.0
2001 Q1 0 0 0
2000 Q4 0 0 0
2000 Q3 80 0 0 0.0
2000 Q2 240 0 0 0.0
2000 Q1 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.