Mining Incidents

Wash Plant 2 Metal/Non-Metal

Controlled by Knife River Corporation
Boise, Ada County, ID  ·  Intermittent
MSHA Mine ID: 1002090

Wash Plant 2 has $4K in proposed MSHA penalties and $151 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2009–2022
Latest incident
Apr 2022
Compliance record
MSHA citations since 2008
20
citations
2
significant & substantial
$3,913
proposed penalties
$3,762
paid to date
96% of proposed penalties paid to date, a $151 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
19
inspections on record
152
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: 152 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Wash Plant 2 has $4K in proposed MSHA penalties and $151 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
$151
outstanding
20 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-24.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 1,617 0 0 0.0
2025 Q3 2,409 0 0 0.0
2025 Q2 1,935 0 0 0.0
2025 Q1 32 0 0 0.0
2024 Q4 1,176 1 0 850.3
2024 Q3 586 0 0 0.0
2024 Q2 1,621 0 0 0.0
2024 Q1 353 6 0 16997.2
Show 45 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 1,203 0 0 0.0
2023 Q3 2,737 0 0 0.0
2023 Q2 2,483 0 0 0.0
2023 Q1 1,763 0 0 0.0
2022 Q4 2,768 0 0 0.0
2022 Q3 3,064 0 0 0.0
2022 Q2 2,963 0 0 0.0
2021 Q2 0 0 0
2021 Q1 0 0 0
2020 Q4 0 0 0
2020 Q3 2,102 0 0 0.0
2020 Q2 893 0 0 0.0
2020 Q1 0 0 0
2019 Q4 143 1 0 6993.0
2019 Q3 1,341 0 0 0.0
2019 Q2 433 0 0 0.0
2019 Q1 0 0 0
2018 Q4 409 0 0 0.0
2018 Q3 1,263 0 0 0.0
2018 Q2 0 0 0
2018 Q1 3,126 0 0 0.0
2017 Q4 0 0 0
2017 Q3 1,602 1 0 624.2
2017 Q2 974 0 0 0.0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q3 0 0 0
2010 Q2 595 1 0 1680.7
2010 Q1 1,191 0 0 0.0
2009 Q4 1,115 6 1 5381.2
2009 Q3 1,954 2 0 1023.5
2009 Q2 2,627 0 0 0.0
2009 Q1 1,796 0 0 0.0
2008 Q4 693 1 1 1443.0
2008 Q3 662 0 0 0.0
2008 Q2 554 0 0 0.0
2008 Q1 418 0 0 0.0
2007 Q4 422 0 0 0.0
2007 Q3 797 0 0 0.0
2007 Q2 888 0 0 0.0
2007 Q1 200 0 0 0.0
2006 Q4 3,152 0 0 0.0
2006 Q3 60 0 0 0.0
2006 Q2 0 0 0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2022 · 1 incident

April 13, 2022 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Knife River Southern Idaho Division · Struck by flying object

Miner was working on a conveyor and cleared the dust off the are they were about to work on and got dust in their eye.

2009 · 1 incident

April 24, 2009 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Knife River · Caught in, under or between a moving and a stationary object

Hooking up chain to loader to pull manlift which was stuck, loader operator took off to soon, caught finger in chain.

For insurers, brokers, and safety consultants

The full compliance file on Wash Plant 2

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.