Mining Incidents

Stripping Crew: 2 MSHA citations Metal/Non-Metal

Controlled by Knife River Corporation
Sauk Rapids, Benton County, MN  ·  Intermittent
MSHA Mine ID: 2103790

Stripping Crew has $200 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
1
Years on record
2024
Latest incident
Nov 2024
Compliance record
MSHA citations since 2013
2
citations
0
significant & substantial
$200
proposed penalties
$200
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2013
13
inspections on record
57
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: 57 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Stripping Crew has $200 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.
$200
proposed penalties
$200
current assessed
$200
paid to date
$0
outstanding
2 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2013-04-29.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 50.0% 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: 2026-03-05
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-03-05 Respirable dust, <.1mg 0 Bulldozer Operator
2026-03-05 Respirable dust, <.1mg 0 Truck Driver
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. Knife River Corporation North Central 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 4
2024 4
2023 1
2022 1
2021 3
2020 3
2017 1
2016 2
2015 1
2014 3
2013 3
2012 3
Source: MSHA quarterly employment and production, updated weekly.

Stripping Crew sits in Benton County, Minnesota, 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.
Benton County, Minnesota · Population 41,458
0.1%
Mining share of county employment
$71,480
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 3,217 0 0 0.0
2026 Q1 1,441 0 0 0.0
2025 Q4 1,681 0 0 0.0
2025 Q3 3,169 0 0 0.0
2025 Q2 2,536 0 0 0.0
2025 Q1 1 0 0 0.0
2024 Q4 1,441 0 0 0.0
2024 Q3 2,377 0 0 0.0
Show 23 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,120 0 0 0.0
2024 Q1 1 0 0 0.0
2023 Q4 1 0 0 0.0
2023 Q3 1 0 0 0.0
2022 Q1 1 0 0 0.0
2021 Q4 1 0 0 0.0
2021 Q3 241 0 0 0.0
2020 Q2 201 0 0 0.0
2017 Q2 1 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 353 0 0 0.0
2016 Q3 1 0 0 0.0
2016 Q2 1 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 1 0 0 0.0
2015 Q3 1 0 0 0.0
2015 Q2 146 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 276 0 0 0.0
2014 Q3 124 0 0 0.0
2014 Q2 101 0 0 0.0
2013 Q2 431 2 0 4640.4
2012 Q4 138 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2024 · 1 incident