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MN Portable #7: 9 MSHA citations Metal/Non-Metal

Maple Grove, Hennepin County, MN  ·  Intermittent
MSHA Mine ID: 2103355

MN Portable #7 has $1K 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
5
Years on record
2007–2019
Latest incident
Oct 2019
Compliance record
MSHA citations since 2003
9
citations
2
significant & substantial
$1,138
proposed penalties
$1,138
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Barton Sand & Gravel Co's full MSHA compliance history →
Inspection activity
MSHA inspections since 2003
21
inspections on record
193
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: 193 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 #7 has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
9 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-08-05.
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.
22.2%
significant & substantial
11.1%
high negligence or reckless
22.2%
reasonably likely or greater
66.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 22.2% low, 66.7% moderate, 11.1% 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: 2018-05-16, 8 years ago
0%
of limit-tested samples over the exposure limit
4
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg2
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2018-05-16 Respirable dust, <.1mg 0 Supervisor, Co. Official
2018-05-16 Quartz, respirable, >1% Qtz 0.15 Front-end Loader Operator
2018-05-16 Quartz, respirable, >1% Qtz 0.18 0.55 0.33 Oiler, Greaser
2010-09-28 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 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2023 0
2022 0
2021 0
2020 3
2019 6
2018 6
2017 6
2016 6
2014 0
2013 0
2012 0
2011 5
2010 5
2009 5
2008 5
2007 5
2006 4
2005 5
2004 10
2003 5
Source: MSHA quarterly employment and production, updated weekly.

MN Portable #7 sits in Hennepin County, Minnesota, where the Census mining category is 0.0% 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.
Hennepin County, Minnesota · Population 1,268,903
0.0%
Mining share of county employment
$96,339
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 3,994 0 0 0.0
2026 Q1 526 0 0 0.0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 0 0 0
2022 Q2 0 0 0
2022 Q1 0 0 0
Show 65 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2021 Q4 0 0 0
2021 Q3 0 0 0
2020 Q3 905 2 0 2209.9
2019 Q4 2,482 0 0 0.0
2019 Q3 3,762 0 0 0.0
2019 Q2 4,443 1 0 225.1
2019 Q1 619 0 0 0.0
2018 Q4 1,464 0 0 0.0
2018 Q3 3,686 0 0 0.0
2018 Q2 4,074 0 0 0.0
2018 Q1 1,512 0 0 0.0
2017 Q4 3,308 0 0 0.0
2017 Q3 4,804 0 0 0.0
2017 Q2 3,096 0 0 0.0
2017 Q1 908 0 0 0.0
2016 Q4 1,789 0 0 0.0
2016 Q3 2,630 1 1 380.2
2016 Q2 2,877 0 0 0.0
2016 Q1 911 0 0 0.0
2014 Q3 0 0 0
2014 Q2 0 0 0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 0 0 0
2012 Q1 0 0 0
2011 Q4 1,698 1 1 588.9
2011 Q3 3,048 0 0 0.0
2011 Q2 2,801 0 0 0.0
2011 Q1 1,347 0 0 0.0
2010 Q4 2,861 0 0 0.0
2010 Q3 3,262 0 0 0.0
2010 Q2 2,858 0 0 0.0
2010 Q1 159 0 0 0.0
2009 Q4 863 2 0 2317.5
2009 Q3 2,195 0 0 0.0
2009 Q2 1,950 0 0 0.0
2009 Q1 638 0 0 0.0
2008 Q4 1,334 0 0 0.0
2008 Q3 3,146 0 0 0.0
2008 Q2 2,216 0 0 0.0
2008 Q1 737 0 0 0.0
2007 Q4 2,372 0 0 0.0
2007 Q3 2,875 0 0 0.0
2007 Q2 3,264 0 0 0.0
2007 Q1 1 0 0 0.0
2006 Q4 2,569 0 0 0.0
2006 Q3 1,904 0 0 0.0
2006 Q2 3,344 0 0 0.0
2006 Q1 1 0 0 0.0
2005 Q4 2,427 1 0 412.0
2005 Q3 2,014 0 0 0.0
2005 Q2 3,220 0 0 0.0
2005 Q1 899 0 0 0.0
2004 Q4 2,136 0 0 0.0
2004 Q3 1 0 0 0.0
2004 Q2 3,253 0 0 0.0
2004 Q1 654 0 0 0.0
2003 Q4 2,205 1 0 453.5
2003 Q3 2,978 0 0 0.0
2003 Q2 366 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

5 on file

2019 · 1 incident

October 4, 2019 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Barton Sand & Gravel Co · Caught in, under or between a moving and a stationary object

Pinched and lacerated left middle finger tip installing roller gang on conveyor - laceration required stitches.

2017 · 1 incident

2011 · 1 incident

March 28, 2011 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

Hearing Loss

2008 · 1 incident

March 7, 2008 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

Hearing loss discovered during annual hearing test.

2007 · 1 incident

March 7, 2007 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

Hearing loss on his annual hearing test.