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503403: 21 MSHA citations Metal/Non-Metal

Controlled by Knife River Corporation
Sauk Rapids, Benton County, MN  ·  Intermittent
MSHA Mine ID: 2103133

503403 has $2K 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
2005
Latest incident
Dec 2005
Compliance record
MSHA citations since 2000
21
citations
4
significant & substantial
$1,994
proposed penalties
$1,994
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Knife River Corporation North Central's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
29
inspections on record
246
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: 246 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

503403 has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-04-23.
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.
19.0%
significant & substantial
0.0%
high negligence or reckless
19.0%
reasonably likely or greater
38.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 52.4% low, 47.6% 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: 2020-09-29, 5 years ago
0%
of limit-tested samples over the exposure limit
4
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg2
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-09-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-09-29 Respirable dust, <.1mg 0 Utility Man
2011-06-09 Quartz, respirable, >1% Qtz 0.12 1.14 0.11 Washer Operator
2011-06-09 Quartz, respirable, >1% Qtz 0.15 0.75 0.20 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. Knife River Corporation North Central 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 3
2023 3
2022 3
2021 3
2020 4
2019 3
2018 1
2017 3
2016 2
2015 3
2014 2
2013 2
2012 2
2011 2
2010 2
2009 2
2008 3
2007 2
2006 6
2005 4
2004 3
2003 2
2002 3
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

503403 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 1,609 0 0 0.0
2026 Q1 1 0 0 0.0
2025 Q4 241 0 0 0.0
2025 Q3 1,585 0 0 0.0
2025 Q2 1,691 1 0 591.4
2025 Q1 1 0 0 0.0
2024 Q4 481 0 0 0.0
2024 Q3 1,585 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,340 0 0 0.0
2024 Q1 1 0 0 0.0
2023 Q4 649 0 0 0.0
2023 Q3 1,561 0 0 0.0
2023 Q2 2,341 0 0 0.0
2023 Q1 1 0 0 0.0
2022 Q4 348 0 0 0.0
2022 Q3 573 0 0 0.0
2022 Q2 1,911 0 0 0.0
2022 Q1 1 0 0 0.0
2021 Q4 197 0 0 0.0
2021 Q3 416 1 0 2403.8
2021 Q2 441 0 0 0.0
2021 Q1 101 0 0 0.0
2020 Q4 143 0 0 0.0
2020 Q3 536 0 0 0.0
2020 Q2 505 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 113 0 0 0.0
2019 Q3 677 0 0 0.0
2019 Q2 324 2 0 6172.8
2019 Q1 1 0 0 0.0
2018 Q4 1 0 0 0.0
2018 Q3 1 0 0 0.0
2018 Q2 1 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 1 0 0 0.0
2017 Q3 1 0 0 0.0
2017 Q2 1,299 0 0 0.0
2017 Q1 11 0 0 0.0
2016 Q4 1 1 1 1000000.0
2016 Q3 772 0 0 0.0
2016 Q2 744 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 214 0 0 0.0
2015 Q3 436 0 0 0.0
2015 Q2 514 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 183 0 0 0.0
2014 Q3 305 0 0 0.0
2014 Q2 337 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 225 0 0 0.0
2013 Q3 432 0 0 0.0
2013 Q2 230 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 962 1 0 1039.5
2012 Q3 386 0 0 0.0
2012 Q2 392 0 0 0.0
2012 Q1 0 0 0
2011 Q4 354 0 0 0.0
2011 Q3 894 0 0 0.0
2011 Q2 248 2 0 8064.5
2011 Q1 0 0 0
2010 Q4 154 0 0 0.0
2010 Q3 432 0 0 0.0
2010 Q2 330 0 0 0.0
2010 Q1 0 0 0
2009 Q4 119 1 0 8403.4
2009 Q3 411 0 0 0.0
2009 Q2 270 0 0 0.0
2009 Q1 0 0 0
2008 Q4 129 0 0 0.0
2008 Q3 297 0 0 0.0
2008 Q2 252 1 0 3968.3
2008 Q1 0 0 0
2007 Q4 257 0 0 0.0
2007 Q3 501 0 0 0.0
2007 Q2 367 0 0 0.0
2007 Q1 0 0 0
2006 Q4 334 0 0 0.0
2006 Q3 627 0 0 0.0
2006 Q2 1,074 0 0 0.0
2006 Q1 417 0 0 0.0
2005 Q4 834 9 2 10791.4
2005 Q3 834 0 0 0.0
2005 Q2 819 0 0 0.0
2005 Q1 17 0 0 0.0
2004 Q4 467 0 0 0.0
2004 Q3 268 0 0 0.0
2004 Q2 382 0 0 0.0
2004 Q1 18 0 0 0.0
2003 Q4 80 0 0 0.0
2003 Q3 364 0 0 0.0
2003 Q2 361 0 0 0.0
2003 Q1 0 0 0
2002 Q4 152 0 0 0.0
2002 Q3 394 0 0 0.0
2002 Q2 460 0 0 0.0
2002 Q1 0 0 0
2001 Q4 200 0 0 0.0
2001 Q3 427 0 0 0.0
2001 Q2 413 0 0 0.0
2001 Q1 0 0 0
2000 Q4 62 0 0 0.0
2000 Q3 420 0 0 0.0
2000 Q2 507 2 1 3944.8
2000 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2005 · 1 incident

December 12, 2005 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Knife River Corporation North Central · Bodily reaction, (Not Elsewhere Classified)

BENDING KNEE TO GET IN POSITION TO WELD ON PLANT.