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Dayton Pit & Mill: 67 MSHA citations Metal/Non-Metal

Controlled by Russell E Keene
Dayton, York County, ME  ·  Active
MSHA Mine ID: 1700283

Dayton Pit & Mill has $11K 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
15
Years on record
1983–2022
Latest incident
Mar 2022
Compliance record
MSHA citations since 2002
67
citations
17
significant & substantial
$10,893
proposed penalties
$10,893
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Dayton Sand & Gravel Co Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
62
inspections on record
1,044
inspection hours
6.4
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.
67 citations across 1,044 inspection hours.
Source: MSHA inspections data, updated weekly.

Dayton Pit & Mill has $11K 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
66 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-01-28.
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.
25.8%
significant & substantial
0.0%
high negligence or reckless
25.8%
reasonably likely or greater
59.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 31.8% low, 68.2% 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: 2024-06-04
0%
of limit-tested samples over the exposure limit
26
samples
10
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg15
  • Quartz, respirable, >1% Qtz4
  • Arsenic fumes3
  • Beryllium fumes3
Show the individual readings (64)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-06-04 Respirable dust, <.1mg 0 Truck Driver
2024-06-04 Respirable dust, <.1mg 0 Backhoe Operator
2023-09-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-09-27 Respirable dust, <.1mg 0 Truck Driver
2023-09-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-02-11 Respirable dust, <.1mg 0 Crusher Oper/Worker
2018-12-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-12-13 Nickel fumes 0 3 0.00 Welder, etc.
2016-12-13 Molybdenum fumes 0 20 0.00 Welder, etc.
2016-12-13 Manganese fumes 0.02 5 0.00 Welder, etc.
2016-12-13 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2016-12-13 Iron oxide fumes 0.53 20 0.03 Welder, etc.
2016-12-13 Vanadium fumes 0 50 0.00 Welder, etc.
2016-12-13 Cobalt fumes 0 300 0.00 Welder, etc.
2016-12-13 Chromium, insoluble 0 3 0.00 Welder, etc.
2016-12-13 Cadmium oxide fumes 2 100 0.02 Welder, etc.
2016-12-13 Beryllium fumes 0 6 0.00 Welder, etc.
2016-12-13 Arsenic fumes 3.17 1500 0.00 Welder, etc.
2016-12-13 Lead fumes 0 450 0.00 Welder, etc.
2016-12-13 Zinc oxide fumes 0.01 10 0.00 Welder, etc.
2016-12-13 Copper fumes 4 300 0.01 Welder, etc.
2014-04-30 Respirable dust, <.1mg 0 Truck Driver
2014-04-30 Respirable dust, <.1mg 0 Crusher Oper/Worker
2012-07-18 Respirable dust, <.1mg 0 Crusher Oper/Worker
2012-07-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-07-18 Respirable dust, <.1mg 0 Truck Driver
2010-03-17 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2010-03-17 Arsenic fumes 0 1500 0.00 Welder, etc.
2010-03-17 Beryllium fumes 0 6 0.00 Welder, etc.
2010-03-17 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2010-03-17 Chromium, insoluble 0 3 0.00 Welder, etc.
2010-03-17 Cobalt fumes 0 300 0.00 Welder, etc.
2010-03-17 Copper fumes 38.63 300 0.13 Welder, etc.
2010-03-17 Iron oxide fumes 2.56 20 0.13 Welder, etc.
2010-03-17 Lead fumes 10.78 450 0.02 Welder, etc.
2010-03-17 Manganese fumes 0.21 5 0.04 Welder, etc.
2010-03-17 Molybdenum fumes 0 20 0.00 Welder, etc.
2010-03-17 Nickel fumes 0 3 0.00 Welder, etc.
2010-03-17 Vanadium fumes 0 50 0.00 Welder, etc.
2010-03-17 Zinc oxide fumes 0.02 10 0.00 Welder, etc.
2007-06-27 Unlisted Particulate, respirable, <1% Qtz 0.17 Front-end Loader Operator
2007-06-27 Quartz, respirable, >1% Qtz 0.14 0.55 0.25 Crusher Oper/Worker
2005-04-13 Vanadium fumes 0.12 50 0.00 Welder, etc.
2005-04-13 Titanium dioxide fumes 0 10 0.00 Welder, etc.
2005-04-13 Nickel fumes 0 1 0.00 Welder, etc.
2005-04-13 Molybdenum fumes 0 10 0.00 Welder, etc.
2005-04-13 Manganese fumes 0.06 5 0.01 Welder, etc.
2005-04-13 Magnesium oxide fumes 0 10 0.00 Welder, etc.
2005-04-13 Lead fumes 0.12 150 0.00 Welder, etc.
2005-04-13 Iron oxide fumes 0.37 10 0.04 Welder, etc.
2005-04-13 Copper fumes 1.1 100 0.01 Welder, etc.
2005-04-13 Cobalt fumes 0 100 0.00 Welder, etc.
2005-04-13 Chromium, insoluble 0 1 0.00 Welder, etc.
2005-04-13 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2005-04-13 Beryllium fumes 0 2 0.00 Welder, etc.
2005-04-13 Aluminum oxide fumes 0 10 0.00 Welder, etc.
2005-04-13 Arsenic fumes 0.25 500 0.00 Welder, etc.
2005-04-13 Zinc oxide fumes 0 5 0.00 Welder, etc.
2004-04-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-04-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-04-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-04-21 Quartz, respirable, >1% Qtz 0.14 0.29 0.48 Crusher Oper/Worker
2004-04-21 Quartz, respirable, >1% Qtz 0.58 1.86 0.31 Truck Driver
2002-05-15 Quartz, respirable, >1% Qtz 0.19 1.11 0.17 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.

Dayton Pit & Mill recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
ⓘ This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Maine, metal and nonmetal mining averaged 1.71 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 0.00 0.00 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 6.78 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 6.83 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Dayton Sand & Gravel Co Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 15
2025 15
2024 14
2023 13
2022 13
2021 13
2020 12
2019 12
2018 13
2017 12
2016 12
2015 11
2014 10
2013 10
2012 10
2011 9
2010 9
2009 9
2008 10
2007 12
2006 11
2005 12
2004 13
2003 12
2002 13
2001 13
2000 12
Source: MSHA quarterly employment and production, updated weekly.

Dayton Pit & Mill sits in York County, Maine, 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.
York County, Maine · Population 214,731
0.1%
Mining share of county employment
$82,904
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 8,497 0 0 0.0
2026 Q1 6,084 1 0 164.4
2025 Q4 7,780 0 0 0.0
2025 Q3 9,330 0 0 0.0
2025 Q2 8,397 4 2 476.4
2025 Q1 8,194 0 0 0.0
2024 Q4 8,177 0 0 0.0
2024 Q3 7,984 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 7,939 2 1 251.9
2024 Q1 7,034 1 0 142.2
2023 Q4 6,465 0 0 0.0
2023 Q3 9,121 0 0 0.0
2023 Q2 7,800 0 0 0.0
2023 Q1 5,207 0 0 0.0
2022 Q4 6,485 0 0 0.0
2022 Q3 8,020 0 0 0.0
2022 Q2 8,525 0 0 0.0
2022 Q1 6,461 0 0 0.0
2021 Q4 7,838 0 0 0.0
2021 Q3 8,124 1 0 123.1
2021 Q2 8,011 0 0 0.0
2021 Q1 6,104 0 0 0.0
2020 Q4 7,487 0 0 0.0
2020 Q3 8,363 2 0 239.1
2020 Q2 8,012 1 0 124.8
2020 Q1 5,440 0 0 0.0
2019 Q4 7,442 0 0 0.0
2019 Q3 7,716 1 0 129.6
2019 Q2 7,739 0 0 0.0
2019 Q1 5,547 0 0 0.0
2018 Q4 6,806 0 0 0.0
2018 Q3 7,843 1 1 127.5
2018 Q2 7,838 0 0 0.0
2018 Q1 6,324 2 1 316.3
2017 Q4 7,489 0 0 0.0
2017 Q3 8,628 3 1 347.7
2017 Q2 7,462 0 0 0.0
2017 Q1 4,761 0 0 0.0
2016 Q4 8,113 2 0 246.5
2016 Q3 7,730 8 4 1034.9
2016 Q2 7,184 0 0 0.0
2016 Q1 5,021 0 0 0.0
2015 Q4 6,502 0 0 0.0
2015 Q3 7,294 0 0 0.0
2015 Q2 7,229 0 0 0.0
2015 Q1 5,000 0 0 0.0
2014 Q4 5,516 1 0 181.3
2014 Q3 5,931 0 0 0.0
2014 Q2 6,089 1 1 164.2
2014 Q1 4,964 0 0 0.0
2013 Q4 5,970 0 0 0.0
2013 Q3 6,436 0 0 0.0
2013 Q2 6,439 0 0 0.0
2013 Q1 4,303 4 1 929.6
2012 Q4 5,537 0 0 0.0
2012 Q3 6,600 0 0 0.0
2012 Q2 5,194 0 0 0.0
2012 Q1 4,190 2 1 477.3
2011 Q4 4,938 0 0 0.0
2011 Q3 5,094 0 0 0.0
2011 Q2 4,409 5 1 1134.0
2011 Q1 3,811 0 0 0.0
2010 Q4 4,544 0 0 0.0
2010 Q3 4,855 0 0 0.0
2010 Q2 4,735 0 0 0.0
2010 Q1 4,619 4 1 866.0
2009 Q4 4,577 0 0 0.0
2009 Q3 5,786 1 0 172.8
2009 Q2 5,082 0 0 0.0
2009 Q1 3,536 0 0 0.0
2008 Q4 5,384 0 0 0.0
2008 Q3 6,007 0 0 0.0
2008 Q2 6,090 1 0 164.2
2008 Q1 3,867 0 0 0.0
2007 Q4 7,317 0 0 0.0
2007 Q3 7,553 0 0 0.0
2007 Q2 6,577 3 0 456.1
2007 Q1 4,850 0 0 0.0
2006 Q4 5,949 0 0 0.0
2006 Q3 6,672 0 0 0.0
2006 Q2 6,184 4 1 646.8
2006 Q1 4,189 0 0 0.0
2005 Q4 6,486 0 0 0.0
2005 Q3 9,304 0 0 0.0
2005 Q2 7,330 1 0 136.4
2005 Q1 3,772 0 0 0.0
2004 Q4 8,120 2 1 246.3
2004 Q3 7,799 0 0 0.0
2004 Q2 8,389 1 0 119.2
2004 Q1 4,295 0 0 0.0
2003 Q4 6,274 0 0 0.0
2003 Q3 8,361 4 0 478.4
2003 Q2 7,531 0 0 0.0
2003 Q1 1,688 0 0 0.0
2002 Q4 8,710 0 0 0.0
2002 Q3 7,509 0 0 0.0
2002 Q2 7,162 4 0 558.5
2002 Q1 4,580 0 0 0.0
2001 Q4 8,190 0 0 0.0
2001 Q3 9,098 0 0 0.0
2001 Q2 6,446 0 0 0.0
2001 Q1 3,821 0 0 0.0
2000 Q4 6,558 0 0 0.0
2000 Q3 8,157 0 0 0.0
2000 Q2 7,681 0 0 0.0
2000 Q1 4,481 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

15 on file

2022 · 1 incident

March 22, 2022 ME · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Dayton Sand & Gravel Co Inc · Struck by flying object

Grinding on metal surface, a grinding wheel came apart a piece of the wheel cut employees leg.

2020 · 1 incident

November 21, 2020 ME · Metal/Non-Metal safety director SLIP OR FALL OF PERSON
Dayton Sand & Gravel Co Inc · Fall to the walkway or working surface

EE was walking through the Maintenance shop and tripped over own two feet and fell. EE put arm out to catch self and it fractured the radius head in arm.

2014 · 1 incident

December 18, 2014 ME · Metal/Non-Metal electrician, lineman OTHER
Dayton Sand & Gravel Co Inc · (Not Elsewhere Classified)

INDEPENDENT CONTRACTOR C.A. LIBBY ELECTRIC (ID A4652) WAS DISMANTLING DE-ENERGIZED POWER LINES. AFTER COMPLETION OF JOB, CONTRACTOR SUFFERED AN ASSUMED CARDIAC EVENT RESULTING IN DEATH.

2009 · 1 incident

January 21, 2009 ME · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Dayton Sand & Gravel Co Inc · Caught in, under or between a moving and a stationary object

Miner was rebuilding cone crusher during winter maintenance. He put his hand between top part of crusher, which was hydraulically suspended, and the guard. The crusher was lowering down when the miner struck his lower arm between the crusher and the guard and it got pinched.

2008 · 1 incident

January 18, 2008 ME · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Dayton Sand & Gravel Co Inc · Struck by... (Not Elsewhere Classified)

Miner was operating a grinder with his head at a strange angle. A piece of debris was flung underneath his safety glasses and was lodged in his right eye.

2004 · 1 incident

August 14, 2004 ME · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Dayton Sand & Gravel Co Inc · Struck by flying object

Injured person was removing bolts from a steel plate, a washer became airbourne and struck injured person in the right eye brow. Washer cut subject above the eye requiring six stitches.

2003 · 1 incident

January 28, 2003 ME · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Dayton Sand & Gravel Co Inc · Struck by flying object

GRINDING ON STEEL WITH A 4.5" GRINDER. EE GOT A STEEL CHIP IN HIS RIGHT EYE. EE WAS WEARING PROTECTIVE EYE WEAR AT THE TIME OF THE INCIDENT. HE WENT TO THE PHYSICIANS OFFICE ON THE 31ST, 3 DAY S AFTER THE INCIDENT, WHERE THEY MOVED THE LODGED OBJECT FROM HIS RIGHT EYE. EE RECEIVED A ANTIBIOTIC OINTMENT, AND WAS NOT REQUIRED TO HAVE ANY FOLLOW UP OBSERVATIONS.

2002 · 3 incidents

August 20, 2002 ME · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Dayton Sand & Gravel Co Inc · Over-exertion in wielding or throwing objects

EE WAS SWINGING A SMALL SLEDGE HAMMER TO DRIVE WEDGES TO SECURE THE CONE, HE FELT A SHARP PAIN IN HIS NECK AND UPPER BACK.

June 22, 2002 ME · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Dayton Sand & Gravel Co Inc · Fall from machine

EE WAS PERFORMING ROUTINE MAINTENANCE ON THE METAL DETECTOR BOX. UPON COMPLETION OF WORK HE STEPPED ONTO THE SUPERSTRUCTURE OF THE PRIMARY CRUSHER, SLIPPED, & FELL APPROX 18" ONTO HIS RIGHT AN KLE.

March 15, 2002 ME · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Dayton Sand & Gravel Co Inc · Over-exertion (Not Elsewhere Classified)

EE WAS REMOVING A ROCK THAT HAD BECOME LODGED IN THE CONE OF THE PORTABLE CRUSHER: EQUIPMENT WAS SHUT DONW & LOCKED OUT, AT WHICH TIME EE TRIED TO REMOVE THE ROCK MANUALLY. AT THIS TIME HE COMPLAINED OF SOME PAIN IN HIS LOWER ABDOMINAL AREA Y

2001 · 2 incidents

October 16, 2001 ME · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Dayton Sand & Gravel Co Inc · Over-exertion (Not Elsewhere Classified)

EE WAS MOVING HIS LUNCH BOX IN THE CAB OF THE LOADER & TWISTED HIS BACK/HIP AREA. DR'S ASSESSMENT WAS STRAINED MUSCLE IN THE LOWER BACK AREA. RET'D TO FULL DUTIES ON MONDAY THE 22ND

April 9, 2001 ME · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Dayton Sand & Gravel Co Inc · Over-exertion (Not Elsewhere Classified)

LIFTED UP THE DOOR ON THE PORTABLE CRUSHER & FELT SOMETHING POP IN RIGHT FOREARM. PAIN DEVELOPEDIN RIGHT SHOULDER & FINGERS & PROGRESSIVELY GOT WORSE OVER TIME. INCIDENT WAS NOT REPORTED UNTIL 7/25/01

1992 · 1 incident

1986 · 1 incident

July 1, 1986 ME · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Dayton Sand & Gravel Co Inc · Struck by flying object

HE WAS BREAKING3A LODGED STONE & A CHIP FLEW AND HIT HIM IN THE EYE

1983 · 1 incident

June 24, 1983 ME · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Dayton Sand & Gravel Co Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS RUNNING THE CRUSHER, HE LOST HIS FOOTING AND DISLOCATED HIS LEFT ARM.