Mining Incidents

MN Portable #4: 23 MSHA citations Metal/Non-Metal

Scandia, Sherburne County, MN  ·  Intermittent
MSHA Mine ID: 2103287

MN Portable #4 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
3
Years on record
2009–2019
Latest incident
Aug 2019
Compliance record
MSHA citations since 2002
23
citations
5
significant & substantial
$2,420
proposed penalties
$2,420
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
33
inspections on record
318
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: 318 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

MN Portable #4 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
23 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-09-03.
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.
21.7%
significant & substantial
0.0%
high negligence or reckless
21.7%
reasonably likely or greater
65.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 43.5% low, 56.5% 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: 2025-11-04
20%
of limit-tested samples over the exposure limit
25
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz81 over
  • Respirable dust, <.1mg16
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (25)
Date Contaminant Concentration Limit Conc / limit Occupation
2009-05-13 Quartz, respirable, >1% Qtz 1.05 0.9 1.17 Cleanup Man
2025-11-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-09-12 Quartz, respirable, >1% Qtz 0.21 0.79 0.27 Belt Cleaner
2023-09-12 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-09-12 Respirable dust, <.1mg 0 Bulldozer Operator
2021-07-01 Quartz, respirable, >1% Qtz 0.57 Bulldozer Operator
2021-07-01 Quartz, respirable, >1% Qtz 0.2 Laborer, Bullgang
2021-07-01 Unlisted Particulate, respirable, <1% Qtz 0.27 Front-end Loader Operator
2019-09-25 Quartz, respirable, >1% Qtz 0.17 Crusher Oper/Worker
2019-09-25 Respirable dust, <.1mg 0 Supervisor, Co. Official
2019-09-25 Respirable dust, <.1mg 0 Washer Operator
2014-06-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-06-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-06-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-06-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-05-13 Quartz, respirable, >1% Qtz 0.38 0.68 0.56 Crusher Oper/Worker
2009-05-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-04-13 Respirable dust, <.1mg 0 Bulldozer Operator
2004-04-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-04-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-04-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-06-10 Quartz, respirable, >1% Qtz 0.22 1.25 0.18 Crusher Oper/Worker
2003-06-10 Respirable dust, <.1mg 0 Supervisor, Co. Official
2003-06-10 Quartz, respirable, >1% Qtz 0.14 0.72 0.19 Crusher Oper/Worker
2003-06-10 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. Barton Sand & Gravel Co 2001 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 4
2022 3
2021 4
2020 6
2019 4
2018 6
2017 4
2016 6
2015 5
2014 5
2013 3
2012 8
2011 8
2010 6
2009 5
2008 5
2007 5
2006 5
2005 6
2004 11
2003 5
2002 5
2001 5
Source: MSHA quarterly employment and production, updated weekly.

MN Portable #4 sits in Sherburne County, Minnesota, where the Census mining category is 0.2% 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.
Sherburne County, Minnesota · Population 99,178
0.2%
Mining share of county employment
$102,965
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 1,550 0 0 0.0
2026 Q1 380 0 0 0.0
2025 Q4 1,314 0 0 0.0
2025 Q3 2,126 0 0 0.0
2025 Q2 2,385 0 0 0.0
2025 Q1 605 0 0 0.0
2024 Q4 1,804 0 0 0.0
2024 Q3 1,929 0 0 0.0
Show 92 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,171 0 0 0.0
2024 Q1 223 0 0 0.0
2023 Q4 2,195 0 0 0.0
2023 Q3 2,180 0 0 0.0
2023 Q2 1,066 0 0 0.0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 0 0 0
2022 Q2 1,752 0 0 0.0
2022 Q1 984 0 0 0.0
2021 Q4 1,536 0 0 0.0
2021 Q3 84 0 0 0.0
2021 Q2 1,981 0 0 0.0
2020 Q4 3,537 0 0 0.0
2020 Q3 2,871 3 1 1044.9
2020 Q2 2,799 0 0 0.0
2020 Q1 934 0 0 0.0
2019 Q4 2,446 0 0 0.0
2019 Q3 2,080 0 0 0.0
2019 Q2 2,268 0 0 0.0
2019 Q1 471 0 0 0.0
2018 Q4 1,448 0 0 0.0
2018 Q3 2,317 0 0 0.0
2018 Q2 2,484 0 0 0.0
2018 Q1 962 0 0 0.0
2017 Q4 1,286 0 0 0.0
2017 Q3 3,645 0 0 0.0
2017 Q2 2,991 3 0 1003.0
2017 Q1 0 0 0
2016 Q4 1,910 0 0 0.0
2016 Q3 2,249 0 0 0.0
2016 Q2 3,391 0 0 0.0
2016 Q1 1,262 0 0 0.0
2015 Q4 2,408 0 0 0.0
2015 Q3 3,892 0 0 0.0
2015 Q2 3,406 2 0 587.2
2015 Q1 0 0 0
2014 Q4 1,062 0 0 0.0
2014 Q3 0 0 0
2014 Q2 4,466 1 0 223.9
2014 Q1 1,082 0 0 0.0
2013 Q4 1,958 0 0 0.0
2013 Q3 90 0 0 0.0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 3,099 0 0 0.0
2012 Q3 5,006 0 0 0.0
2012 Q2 4,712 0 0 0.0
2012 Q1 1,095 0 0 0.0
2011 Q4 2,746 2 2 728.3
2011 Q3 5,185 0 0 0.0
2011 Q2 4,780 0 0 0.0
2011 Q1 951 0 0 0.0
2010 Q4 3,343 0 0 0.0
2010 Q3 5,118 0 0 0.0
2010 Q2 3,993 0 0 0.0
2010 Q1 159 0 0 0.0
2009 Q4 1,957 2 1 1022.0
2009 Q3 3,667 0 0 0.0
2009 Q2 3,517 3 0 853.0
2009 Q1 638 0 0 0.0
2008 Q4 1,490 0 0 0.0
2008 Q3 2,854 0 0 0.0
2008 Q2 2,800 1 0 357.1
2008 Q1 737 0 0 0.0
2007 Q4 2,352 0 0 0.0
2007 Q3 3,592 0 0 0.0
2007 Q2 3,836 1 0 260.7
2007 Q1 1,689 0 0 0.0
2006 Q4 2,393 0 0 0.0
2006 Q3 4,081 0 0 0.0
2006 Q2 4,130 0 0 0.0
2006 Q1 1,189 0 0 0.0
2005 Q4 1,936 1 0 516.5
2005 Q3 4,157 0 0 0.0
2005 Q2 3,718 0 0 0.0
2005 Q1 969 0 0 0.0
2004 Q4 3,090 0 0 0.0
2004 Q3 3,880 0 0 0.0
2004 Q2 3,880 1 0 257.7
2004 Q1 1,572 0 0 0.0
2003 Q4 2,387 0 0 0.0
2003 Q3 3,317 0 0 0.0
2003 Q2 3,003 0 0 0.0
2003 Q1 355 0 0 0.0
2002 Q4 1,935 0 0 0.0
2002 Q3 3,373 2 1 592.9
2002 Q2 3,028 0 0 0.0
2002 Q1 613 0 0 0.0
2001 Q4 999 0 0 0.0
2001 Q3 3,247 0 0 0.0
2001 Q2 2,631 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2019 · 1 incident

August 9, 2019 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Barton Sand & Gravel Co · Fall onto or against objects

Slipped and fell at same level while splicing a conveyor belt - lacerated left inner thigh on angle iron.

2011 · 1 incident

September 14, 2011 MN · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
Barton Sand & Gravel Co · Struck by... (Not Elsewhere Classified)

Miner (mechanic) received a metal sliver in the little finger of his left hand - did not notice until hand began to swell - unsure how he got sliver

2009 · 1 incident

June 1, 2009 MN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Barton Sand & Gravel Co · Fall to the walkway or working surface

Individual intially reported injury to self at home. Later investigation revealed on 01/07/2010 that employee was injured at work. Employee injured back (3 crushed vertebrae) upon falling from bank/berm of silt pond.