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Maple Grove Pit: 41 MSHA citations Metal/Non-Metal

Maple Grove, Hennepin County, MN  ·  Intermittent
MSHA Mine ID: 2101112

Maple Grove Pit has $7K 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
13
Years on record
1983–2024
Latest incident
Oct 2024
Compliance record
MSHA citations since 2000
41
citations
12
significant & substantial
$6,740
proposed penalties
$6,740
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 2000
30
inspections on record
413
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: 413 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Maple Grove Pit has $7K 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
41 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-19.
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.
29.3%
significant & substantial
4.9%
high negligence or reckless
29.3%
reasonably likely or greater
63.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.1% low, 78.0% moderate, 4.9% 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: 2025-06-17
0%
of limit-tested samples over the exposure limit
23
samples
9
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz11
  • Respirable dust, <.1mg6
  • Unlisted Particulate, respirable, <1% Qtz6
Show the individual readings (23)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-06-17 Quartz, respirable, >1% Qtz 0.45 0.73 0.62 Crusher Oper/Worker
2025-06-17 Respirable dust, <.1mg 0 Washer Operator
2021-11-04 Quartz, respirable, >1% Qtz 0.19 Laborer, Bullgang
2021-11-04 Quartz, respirable, >1% Qtz 0.13 Crusher Oper/Worker
2016-10-18 Quartz, respirable, >1% Qtz 0.17 1.09 0.16 Utility Man
2016-10-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-18 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-08-12 Respirable dust, <.1mg 0 Washer Operator
2014-08-12 Quartz, respirable, >1% Qtz 0.27 0.62 0.44 Crusher Oper/Worker
2010-06-09 Respirable dust, <.1mg 0 Laborer, Bullgang
2010-06-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2008-06-18 Unlisted Particulate, respirable, <1% Qtz 0.2 Front-end Loader Operator
2008-06-18 Quartz, respirable, >1% Qtz 0.18 0.62 0.29 Laborer, Bullgang
2004-10-06 Unlisted Particulate, respirable, <1% Qtz 1.98 Front-end Loader Operator
2004-10-06 Quartz, respirable, >1% Qtz 0.25 0.51 0.49 Crusher Oper/Worker
2004-10-06 Quartz, respirable, >1% Qtz 0.29 0.65 0.45 Crusher Oper/Worker
2004-04-07 Unlisted Particulate, respirable, <1% Qtz 0.3 Washer Operator
2004-04-07 Quartz, respirable, >1% Qtz 0.31 1.01 0.31 Crusher Oper/Worker
2004-04-07 Unlisted Particulate, respirable, <1% Qtz 1.53 Front-end Loader Operator
2002-04-23 Quartz, respirable, >1% Qtz 0.13 0.64 0.20 Truck Driver
2002-04-23 Unlisted Particulate, respirable, <1% Qtz 0.26 Crusher Oper/Worker
2002-04-23 Quartz, respirable, >1% Qtz 0.36 2.49 0.14 Washer Operator
2002-04-23 Unlisted Particulate, respirable, <1% Qtz 0.17 Oiler, Greaser
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 Contracting Company 1950 to 1983
  2. Barton Sand & Gravel Co 1983 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 6
2024 6
2023 6
2022 6
2021 6
2020 6
2019 6
2018 7
2017 6
2016 7
2015 5
2014 4
2013 9
2012 7
2011 7
2010 5
2009 5
2008 5
2007 6
2006 6
2005 6
2004 12
2003 3
2002 6
2001 8
2000 6
Source: MSHA quarterly employment and production, updated weekly.

Maple Grove Pit 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 2,840 0 0 0.0
2026 Q1 1,497 1 1 668.0
2025 Q4 627 0 0 0.0
2025 Q3 3,766 0 0 0.0
2025 Q2 4,459 0 0 0.0
2025 Q1 460 0 0 0.0
2024 Q4 2,635 0 0 0.0
2024 Q3 4,604 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 5,353 0 0 0.0
2024 Q1 401 0 0 0.0
2023 Q4 2,461 0 0 0.0
2023 Q3 5,053 0 0 0.0
2023 Q2 3,017 0 0 0.0
2023 Q1 0 0 0
2022 Q4 2,344 0 0 0.0
2022 Q3 5,433 0 0 0.0
2022 Q2 3,586 0 0 0.0
2022 Q1 0 0 0
2021 Q4 2,184 0 0 0.0
2021 Q3 4,165 0 0 0.0
2021 Q2 4,096 1 0 244.1
2020 Q4 2,375 0 0 0.0
2020 Q3 4,283 0 0 0.0
2020 Q2 3,268 5 1 1530.0
2019 Q4 2,671 0 0 0.0
2019 Q3 3,881 0 0 0.0
2019 Q2 2,996 0 0 0.0
2019 Q1 585 0 0 0.0
2018 Q4 2,837 0 0 0.0
2018 Q3 4,546 0 0 0.0
2018 Q2 5,306 0 0 0.0
2018 Q1 1,513 0 0 0.0
2017 Q4 4,123 8 2 1940.3
2017 Q3 5,266 0 0 0.0
2017 Q2 4,924 0 0 0.0
2017 Q1 0 0 0
2016 Q4 2,957 6 2 2029.1
2016 Q3 4,374 0 0 0.0
2016 Q2 4,669 0 0 0.0
2016 Q1 1,262 0 0 0.0
2015 Q4 2,456 0 0 0.0
2015 Q3 4,965 0 0 0.0
2015 Q2 3,835 3 1 782.3
2015 Q1 0 0 0
2014 Q4 2,315 0 0 0.0
2014 Q3 4,720 4 0 847.5
2014 Q2 0 0 0
2014 Q1 0 0 0
2013 Q4 2,932 0 0 0.0
2013 Q3 2,250 0 0 0.0
2013 Q2 7,095 0 0 0.0
2013 Q1 2,213 0 0 0.0
2012 Q4 3,443 0 0 0.0
2012 Q3 3,154 0 0 0.0
2012 Q2 4,809 0 0 0.0
2012 Q1 1,345 0 0 0.0
2011 Q4 2,671 1 1 374.4
2011 Q3 3,549 0 0 0.0
2011 Q2 6,775 0 0 0.0
2011 Q1 1,471 0 0 0.0
2010 Q4 3,489 2 1 573.2
2010 Q3 4,158 0 0 0.0
2010 Q2 3,067 3 0 978.2
2010 Q1 159 0 0 0.0
2009 Q4 1,662 0 0 0.0
2009 Q3 3,339 0 0 0.0
2009 Q2 2,520 1 0 396.8
2009 Q1 638 0 0 0.0
2008 Q4 1,396 0 0 0.0
2008 Q3 3,194 0 0 0.0
2008 Q2 3,092 0 0 0.0
2008 Q1 737 0 0 0.0
2007 Q4 2,285 0 0 0.0
2007 Q3 3,813 0 0 0.0
2007 Q2 3,866 0 0 0.0
2007 Q1 1,665 0 0 0.0
2006 Q4 2,092 0 0 0.0
2006 Q3 4,205 0 0 0.0
2006 Q2 4,077 0 0 0.0
2006 Q1 1,665 0 0 0.0
2005 Q4 2,417 0 0 0.0
2005 Q3 2,261 0 0 0.0
2005 Q2 3,783 0 0 0.0
2005 Q1 1,435 0 0 0.0
2004 Q4 2,020 1 0 495.0
2004 Q3 1,328 0 0 0.0
2004 Q2 4,084 0 0 0.0
2004 Q1 976 0 0 0.0
2003 Q4 1 0 0 0.0
2003 Q3 1 0 0 0.0
2003 Q2 2,497 0 0 0.0
2003 Q1 393 0 0 0.0
2002 Q4 784 0 0 0.0
2002 Q3 3,458 0 0 0.0
2002 Q2 2,758 0 0 0.0
2002 Q1 586 0 0 0.0
2001 Q4 2,990 0 0 0.0
2001 Q3 5,161 0 0 0.0
2001 Q2 5,270 0 0 0.0
2001 Q1 686 0 0 0.0
2000 Q4 2,734 0 0 0.0
2000 Q3 4,510 0 0 0.0
2000 Q2 3,651 5 3 1369.5
2000 Q1 1 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

13 on file

2024 · 1 incident

October 30, 2024 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Barton Sand & Gravel Co · Over-exertion (Not Elsewhere Classified)

EE felt pain in shoulder after slipping on stair tread. Injury was deemed reportable on 11/11/2024

2017 · 2 incidents

August 10, 2017 MN · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler STRIKING OR BUMPING
Barton Sand & Gravel Co · Struck against stationary object

Preparing conveyors for transport, received small laceration near right knee on extruded metal edge of conveyor guard while walking by.

2009 · 2 incidents

March 24, 2009 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 - STS of 10 dB in left ear.

March 24, 2009 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

Hearing Loss - STS of 13 dB in right ear.

2006 · 1 incident

March 10, 2006 MN · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

Hearing loss recorded on his annual hearing test.

2003 · 1 incident

March 21, 2003 MN · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler DISORDERS (REPEATED TRAUMA)
Barton Sand & Gravel Co · (Not Elsewhere Classified)

HEARING LOSS RECORDED ON HIS ANNUAL HEARING TEST.

2000 · 1 incident

November 29, 2000 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Barton Sand & Gravel Co · Struck by... (Not Elsewhere Classified)

EMPLOYEE FROM OUR MAINTENANCE DEPARTMENT WAS HELPING TO CHANGE A 1 3/8 DRAG CABLE IN THE CRANE WHEN THE CABLE GOT CAUGHT AND SNAPPED UP HITTING HIM IN THE STOMACH.

1992 · 1 incident

April 6, 1992 MN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Barton Sand & Gravel Co · Over-exertion in lifting objects

EMPLOYEE WAS WORKING AT THE MHN SHOP BECAUSE HIS REGULAR JOB AT THE PIT WAS NOT STARTED YET THIS SPRING.EMPLOYEE WAS LIFTING SOME HEAVY OBJECTS IN THE YARD WHEN HE HAD A GROIN PULL.

1989 · 1 incident

July 27, 1989 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Barton Sand & Gravel Co · Caught in, under or between (Not Elsewhere Classified)

INJURED WAS TIGHTENING BOLTS ON SCHROUD COVERING COOLING FAN ON 60 HP MOTOR, WHEN HIS WRENCH SLIPPED OFF BOLT AND THUMB PROTRUDED THROUGH OPENING INTO COOLING FAN BLADES.

1984 · 1 incident

October 8, 1984 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Barton Sand & Gravel Co · Fall from ladders

SLIPPED OFF LADDER IN SHOP WASH ROOM

1983 · 2 incidents

July 20, 1983 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Barton Sand & Gravel Co · Struck against a moving object

LOADER OPERATOR DROVE ONTO SAND PILE & INSTEAD OF COMING TO EDGE AT RT. ANGLES WAS ALMOST PARALLEL. HE DROVE LEFT FRONT TIRE OVER EDGE BUT BUCKET CAUGHT . INSTEAD OF WAITING FOR HELP HE ATTEM PTED TO MANEUVER OUT UNTIL HE LOST FOOTING & ROLLED OVER. LOADER MADE COMPLETE 3/4 TURN & CAME TO REST ON SIDE. DRIVER SUFFERED LACERATIONS ON LEFT LEG.

March 9, 1983 MN · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Barton Sand & Gravel Co · Over-exertion in lifting objects

HE WAS CARRYING STEEL FOR WASH PLANT MAINTENANCE WHEN HE FELT A PULL IN HIS BACK.