Mining Incidents

MILL CREEK DOLOMITE: 1 recorded fatality Metal/Non-Metal

Mill Creek, Johnston County, OK  ·  Active
MSHA Mine ID: 3400008

MILL CREEK DOLOMITE has $169K in proposed MSHA penalties and $100 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
68
Years on record
1983–2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2000
285
citations
101
significant & substantial
$168,742
proposed penalties
$165,402
paid to date
98% of proposed penalties paid to date, a $3,340 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
88
inspections on record
1,446
inspection hours
19.7
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.
285 citations across 1,446 inspection hours.
Source: MSHA inspections data, updated weekly.

MILL CREEK DOLOMITE has $169K in proposed MSHA penalties and $100 outstanding across 3 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.
$169K
proposed penalties
$166K
current assessed
$165K
paid to date
$100
outstanding
285 assessments are final orders; 3 contested dockets.
Of $22K in penalties contested before the Commission, $19K was upheld in final decisions.
As of the most recent assessment on 2026-04-02.
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.
35.4%
significant & substantial
6.0%
high negligence or reckless
35.4%
reasonably likely or greater
48.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 6.0% low, 88.1% moderate, 6.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
6 citations taken to the federal commission · 2% of citations on record
  • Settled 6 · 100%
80%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 5 decided S&S contests · industry: 79%
15%
Penalty reduction in decided contests
$22K proposed, $19K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2022-09-06.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2016-0208 Settlement Manning 2016 $13K → $11K
CENT 2022-0238 Settlement Simonton 2023 $6K → $6K
CENT 2016-0164 Settlement Lesnick 2016 $3K → $2K
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-05-14
0%
of limit-tested samples over the exposure limit
38
samples
19
limit-tested
Most sampled contaminants
  • Nuisance dust, respirable, <1% Qtz18
  • Unlisted Particulate, respirable, <1% Qtz12
  • Respirable dust, <.1mg6
  • Quartz, respirable, >1% Qtz2
Show the individual readings (38)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-05-14 Quartz, respirable, >1% Qtz 0.13 Front-end Loader Operator
2025-05-14 Nuisance dust, respirable, <1% Qtz 0.19 10 0.02 Truck Driver
2025-05-14 Nuisance dust, respirable, <1% Qtz 0.64 10 0.06 Dry Screen Plant Operator
2022-06-29 Nuisance dust, respirable, <1% Qtz 4.24 10 0.42 Kiln/Dryer Operator
2022-06-29 Respirable dust, <.1mg 0 Utility Man
2019-01-23 Unlisted Particulate, respirable, <1% Qtz 3.83 Mechanic
2019-01-23 Unlisted Particulate, respirable, <1% Qtz 0.24 Truck Driver
2019-01-23 Unlisted Particulate, respirable, <1% Qtz 1.22 Dry Screen Plant Operator
2016-10-12 Quartz, respirable, >1% Qtz 1.61 1.87 0.86 Crusher Oper/Worker
2016-10-12 Nuisance dust, respirable, <1% Qtz 2.95 10 0.30 Crusher Oper/Worker
2015-10-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-12-07 Nuisance dust, respirable, <1% Qtz 0.98 10 0.10 Laborer, Bullgang
2011-12-07 Nuisance dust, respirable, <1% Qtz 0.52 10 0.05 Truck Loader
2011-12-07 Nuisance dust, respirable, <1% Qtz 0.77 10 0.08 Dry Screen Plant Operator
2011-01-19 Nuisance dust, respirable, <1% Qtz 0.48 10 0.05 Utility Man
2011-01-19 Nuisance dust, respirable, <1% Qtz 0.25 10 0.03 Sand Filler (Dry)
2011-01-19 Nuisance dust, respirable, <1% Qtz 0.96 10 0.10 Utility Man
2010-01-06 Unlisted Particulate, respirable, <1% Qtz 0.44 Utility Man
2010-01-06 Unlisted Particulate, respirable, <1% Qtz 0.19 Utility Man
2010-01-06 Unlisted Particulate, respirable, <1% Qtz 0.18 Dry Screen Plant Operator
2008-05-14 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Mechanic
2008-05-14 Respirable dust, <.1mg 0 Crusher Oper/Worker
2008-05-14 Nuisance dust, respirable, <1% Qtz 0.32 10 0.03 Crusher Oper/Worker
2007-10-31 Nuisance dust, respirable, <1% Qtz 0.48 10 0.05 Dry Screen Plant Operator
2007-10-31 Nuisance dust, respirable, <1% Qtz 0.94 10 0.09 Dry Screen Plant Operator
2007-10-31 Nuisance dust, respirable, <1% Qtz 2.23 10 0.22 Crusher Oper/Worker
2006-12-13 Nuisance dust, respirable, <1% Qtz 0.41 10 0.04 Laborer, Bullgang
2006-12-13 Nuisance dust, respirable, <1% Qtz 0.68 10 0.07 Crusher Oper/Worker
2006-12-13 Nuisance dust, respirable, <1% Qtz 0.34 10 0.03 Laborer, Bullgang
2005-09-15 Respirable dust, <.1mg 0 Truck Driver
2005-09-15 Unlisted Particulate, respirable, <1% Qtz 0.64 Utility Man
2005-09-15 Unlisted Particulate, respirable, <1% Qtz 0.36 Truck Loader
2005-09-15 Respirable dust, <.1mg 0 Utility Man
2003-04-02 Unlisted Particulate, respirable, <1% Qtz 0.23 Utility Man
2003-04-02 Unlisted Particulate, respirable, <1% Qtz 0.24 Utility Man
2003-04-02 Unlisted Particulate, respirable, <1% Qtz 0.44 Dry Screen Plant Operator
2003-04-02 Unlisted Particulate, respirable, <1% Qtz 0.48 Utility Man
2003-04-02 Respirable dust, <.1mg 0 Crusher Oper/Worker
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.

MILL CREEK DOLOMITE recorded 9.83 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.
9.83
total case rate
0.00
days-away rate
0.000
fatality rate
Above 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 Oklahoma, metal and nonmetal mining averaged 1.92 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 * 9.83 0.00 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 6.51 0.00 0.000
2018 * 3.65 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. Delta Mining Corp 1950 to 1990
  2. Unimin Corp 1990 to 2011
  3. Mill Creek Dolomite LLC 2011 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 19
2025 20
2024 15
2023 14
2022 12
2021 18
2020 26
2019 28
2018 28
2017 26
2016 25
2015 23
2014 23
2013 23
2012 24
2011 22
2010 24
2009 25
2008 27
2007 28
2006 29
2005 29
2004 30
2003 29
2002 30
2001 29
2000 31
Source: MSHA quarterly employment and production, updated weekly.

MILL CREEK DOLOMITE sits in Johnston County, Oklahoma, where the Census mining category is 5.7% 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.
Johnston County, Oklahoma · Population 10,334
5.7%
Mining share of county employment
$50,911
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 9,274 16 5 1725.3
2026 Q1 8,746 0 0 0.0
2025 Q4 9,380 8 1 852.9
2025 Q3 10,185 1 0 98.2
2025 Q2 10,348 3 0 289.9
2025 Q1 10,778 6 2 556.7
2024 Q4 9,232 0 0 0.0
2024 Q3 9,616 25 5 2599.8
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 9,288 2 0 215.3
2024 Q1 9,607 4 0 416.4
2023 Q4 8,633 0 0 0.0
2023 Q3 8,097 5 2 617.5
2023 Q2 7,439 0 0 0.0
2023 Q1 6,641 7 5 1054.1
2022 Q4 7,101 0 0 0.0
2022 Q3 7,712 1 0 129.7
2022 Q2 7,243 7 1 966.5
2022 Q1 7,095 0 0 0.0
2021 Q4 7,664 0 0 0.0
2021 Q3 8,510 9 2 1057.6
2021 Q2 9,341 3 1 321.2
2021 Q1 9,575 7 1 731.1
2020 Q4 11,138 0 0 0.0
2020 Q3 11,685 3 2 256.7
2020 Q2 13,419 7 2 521.6
2020 Q1 14,755 0 0 0.0
2019 Q4 14,605 10 6 684.7
2019 Q3 16,107 3 2 186.3
2019 Q2 15,499 7 2 451.6
2019 Q1 15,210 7 5 460.2
2018 Q4 14,080 0 0 0.0
2018 Q3 14,498 2 0 138.0
2018 Q2 13,965 0 0 0.0
2018 Q1 12,251 0 0 0.0
2017 Q4 12,616 4 2 317.1
2017 Q3 13,998 7 6 500.1
2017 Q2 12,042 0 0 0.0
2017 Q1 11,682 0 0 0.0
2016 Q4 12,739 6 0 471.0
2016 Q3 12,365 1 1 80.9
2016 Q2 12,184 5 2 410.4
2016 Q1 12,791 0 0 0.0
2015 Q4 13,005 9 4 692.0
2015 Q3 13,397 0 0 0.0
2015 Q2 14,093 8 2 567.7
2015 Q1 13,231 0 0 0.0
2014 Q4 10,549 5 2 474.0
2014 Q3 11,375 0 0 0.0
2014 Q2 11,780 4 3 339.6
2014 Q1 12,395 3 2 242.0
2013 Q4 10,600 0 0 0.0
2013 Q3 10,992 1 0 91.0
2013 Q2 11,246 0 0 0.0
2013 Q1 10,536 2 1 189.8
2012 Q4 11,351 0 0 0.0
2012 Q3 11,238 0 0 0.0
2012 Q2 12,840 5 4 389.4
2012 Q1 11,355 0 0 0.0
2011 Q4 10,089 5 4 495.6
2011 Q3 10,856 0 0 0.0
2011 Q2 11,339 1 1 88.2
2011 Q1 11,928 1 0 83.8
2010 Q4 11,267 0 0 0.0
2010 Q3 12,487 3 1 240.2
2010 Q2 12,659 0 0 0.0
2010 Q1 12,767 8 1 626.6
2009 Q4 12,064 0 0 0.0
2009 Q3 12,545 2 0 159.4
2009 Q2 12,253 0 0 0.0
2009 Q1 13,638 0 0 0.0
2008 Q4 13,393 1 1 74.7
2008 Q3 14,431 0 0 0.0
2008 Q2 14,425 0 0 0.0
2008 Q1 15,289 0 0 0.0
2007 Q4 14,344 2 0 139.4
2007 Q3 16,476 0 0 0.0
2007 Q2 15,926 9 1 565.1
2007 Q1 15,197 0 0 0.0
2006 Q4 17,121 2 1 116.8
2006 Q3 15,791 0 0 0.0
2006 Q2 16,113 0 0 0.0
2006 Q1 16,764 3 1 179.0
2005 Q4 16,052 0 0 0.0
2005 Q3 17,432 0 0 0.0
2005 Q2 17,736 0 0 0.0
2005 Q1 18,969 0 0 0.0
2004 Q4 17,959 5 4 278.4
2004 Q3 16,948 0 0 0.0
2004 Q2 17,216 16 5 929.4
2004 Q1 16,997 0 0 0.0
2003 Q4 16,198 0 0 0.0
2003 Q3 16,392 0 0 0.0
2003 Q2 16,960 1 0 59.0
2003 Q1 17,185 3 3 174.6
2002 Q4 16,168 0 0 0.0
2002 Q3 16,860 7 1 415.2
2002 Q2 17,729 1 0 56.4
2002 Q1 16,716 0 0 0.0
2001 Q4 15,745 1 1 63.5
2001 Q3 18,009 0 0 0.0
2001 Q2 17,626 1 0 56.7
2001 Q1 17,662 0 0 0.0
2000 Q4 17,334 0 0 0.0
2000 Q3 18,644 0 0 0.0
2000 Q2 18,808 0 0 0.0
2000 Q1 19,874 1 0 50.3

Fatalities at this mine

1 recorded
March 27, 1984 OK · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor Fatality · MACHINERY
Delta Mining Corp · Struck by falling object

EMPLOYEE WAS SUPERVISING A DRILLING OPERATION BEING DONE BY VENTURE DRILLING CO. A DRILL STEEL CAME LOOSE FROM MAST OF DRILL RIG AND STRUCK EMPLOYEE.

Reportable incidents

67 on file (excluding fatalities above)

2025 · 2 incidents

August 1, 2025 OK · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor HANDLING OF MATERIALS
Mill Creek Dolomite LLC · Struck by falling object

EE was installing buckets on an elevator when the EE's right hand slipped off the bar causing the bar to fall. When this happened the EE tried to catch the bar as it was falling and it ended up smashing EE's middle finger on EE's right hand. This injury resulted in the EE having to get five stitches in EE's middle finger.

January 13, 2025 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor MACHINERY
Mill Creek Dolomite LLC · Caught in, under or between running or meshing objects

EE was cleaning out a chute due to material being clogged. After EE unclogged the chute they communicated this to the control operator. When the material began to clog up again EE reached into the chute to clear the material. At this time the control operator closed the gate crushing EE's hand. EE received three stitches in their right thumb.

2024 · 1 incident

February 13, 2024 OK · Metal/Non-Metal FIRE
Mill Creek Dolomite LLC · Accident type, without injuries

The belt was idled and it is believed that hot material was on the belt that started the fire.

2019 · 2 incidents

November 12, 2019 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mill Creek Dolomite LLC · Over-exertion in lifting objects

Employee was lifting a 5 gallon bucket of hydraulic oil out of the back of a pickup on a cold day when EE turned and twisted causing a muscle strain in back.

October 16, 2019 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mill Creek Dolomite LLC · Fall onto or against objects

While mounting a front end loader the employee's foot slipped striking EE's knee on ladder way. Employee reported at end of shift. Did not think EE needed any medical attention until 10/17/2019. Resulted in one day modified duty.

2018 · 1 incident

November 29, 2018 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Mill Creek Dolomite LLC · Struck by... (Not Elsewhere Classified)

EE was using a airless paint sprayer to paint a building. As the EE was cleaning the nozzle, EE accidently pulled the trigger while EE's right index finger was in front of the nozzle, causing a laceration and getting paint in the wound.

2016 · 1 incident

June 24, 2016 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDTOOLS (NONPOWERED)
Mill Creek Dolomite LLC · Struck by flying object

EE was observing an EE removing an anvil from the VSI table during rebuild with a sledge hammer. As the anvil was struck, a sliver of metal broke loose and struck EE who was standing 10-15 feet away in the left leg above the knee, causing a small cut and puncture wound which required stitches. No Lost Time or Modified Duty.

2015 · 3 incidents

October 31, 2015 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Mill Creek Dolomite LLC · Caught in, under or between a moving and a stationary object

While cleaning the threads of a conveyor belt adjustment bolt with a wire brush, the employees finger was pinched between the wire brush handle and the adjustment bolt cover causing a cut that required stitches.

October 21, 2015 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Mill Creek Dolomite LLC · Fall from machine

EE was standing on the platform of a Komatsu FEL when he was attacked by a wasp. EE was holding onto the handhold swatting at the wasp when he lost his balance and fell ~6' to the ground suffering contusions to his hip and back and arm strain from holding onto the handhold. The post-accident drug test results revealed that the EE tested positive for THC and opiates.

March 12, 2015 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Mill Creek Dolomite LLC · (Not Elsewhere Classified)

Hearing Loss - Confirmation of the reportable hearing loss

2013 · 1 incident

June 20, 2013 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Mill Creek Dolomite LLC · Struck by falling object

Checking for a certain screen cloth size. The screens were standing on edge. The screens started to fall. Employee tried to catch the screen. The edge of the screen caught the tip of the ring finger on left hand. Finger was cut. It required 3 stitches to close the cut.

2010 · 1 incident

November 24, 2010 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Unimin Corp · Caught in, under or between a moving and a stationary object

Employee was removing an inspection door from a bucket elevator. The door slipped pinching the end of his left ring finger between the door and elevator frame, requiring stiches. No modified duty was required. Employee returned to work with no lost time.

2007 · 1 incident

June 27, 2007 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Unimin Corp · Struck by... (Not Elsewhere Classified)

Employee was cleaning a wet scrubber drain using a rotary drain cleaner when the cutting edge encountered hard mud causing the cleaning coil to twist striking the empolyee on the tip of his left ring finger, fracturing the end digit.

1998 · 1 incident

April 23, 1998 OK · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Unimin Corp · Struck by... (Not Elsewhere Classified)

WHILE SUPERVISING THE ADJUST MENT A CONE CRUSHER, THE E POSTIONED HIMSELF BETWEEN A RACHET ADJUSTMENT WRENCH & CONE CRUSHER. A NEW COMEALONG WAS BEING USED TO HOLD TENSION ON THE WRENCH. WHEN THE COMEALONG HANDLE WAS MOVED IN PREPARATION OFRELEASIN GIT, THE COMEALONG HOOK SLIPPED CAUSINGTHE RACHET HANDLE TO STRIKE TH EE BREAKING ONE RIB. ALL EQUIPMENT WAS IN GOOD OR NEW CONDITION

1997 · 1 incident

April 24, 1997 OK · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant SLIP OR FALL OF PERSON
Unimin Corp · Fall to the walkway or working surface

EMPLOYEE WAS SWEEPING THE FLOOR INT HE LAB. AS SHE WAS SWEEPIGN UNDER THE LAB SPLITTER, HE SPLITTER STARTED TO TOPPLE OVER. SHE TRIED TO KEEP IT FROM FALLIGN OVER AND STEPPED INTO HE SUSEPT MATERIAL, LOSING HER BALANCE ON FALLING TO THE FLOOR IN A SITTING POSITION.

1996 · 2 incidents

April 8, 1996 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Unimin Corp · Over-exertion in lifting objects

EMPLOYEE WAS REMOVING A ROCK WEIGHING APPROX. 25 LBS FROM THE HAUL ROAD WHEN HE FELT A PAIN IN LOWER BACK.

January 29, 1996 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Unimin Corp · Over-exertion in lifting objects

EMPLOYEE WAS PERFORMING HOUSEKEEPING AROUND THE JAW CRUSHER WHEN HE ATTEMPTED TO MANUALLY MOVE A ROCK, APPROX 75-100 LBS IN WEIGHT. WHEN HE ATTEMPTED TO LIFT THE ROCK HE FELT A BURNING SENSAT ION IN LOWER BACK.

1994 · 1 incident

February 1, 1994 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Unimin Corp · Over-exertion in pulling or pushing objects

EMPLOYEE WAS CLOSING THE BOTTOM DOOR ON A C-5 RAILCAR WHICH WAS JAMMED, USING A 5' BAR. AS PRESSURE WAS EXERTED ON ATHE BAR, THE DOOR BROKE FREE, CAUSING THE EMPLOYEE TO SLIP, JARRING HIS NECK . EMPLOYEE DID NOT SEEK MEDICAL ATTENTION UNTIL 2/7/94 AT WHICH TIME IT WAS REPORTABLE. EMPLOYEE SUSTAINED A MODERATE NECK STRAIN WHICH WILL REQUIRE FURTHER TREATMENT. RELEASED W/O RESTRICTIO

1993 · 2 incidents

November 1, 1993 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Unimin Corp · Bodily reaction, (Not Elsewhere Classified)

EMPLOYEE WAS STANDING, WATCHING HIS TRUCK LOAD WHEN HE SUFFERED A MUSCLE SPASM IN THE SHOULDER AREA OF HIS BACK. EMPLOYEE STATED HE WAS NOT AND HAD NOT OVEREXERTED OR STRAINED PRIOR TO THE INJ URY. THE PHYSICIAN THAT EXAMINED HIM STATED THAT THE SPASM COULD HAVE OCCURRED AT ANYTIME WHETHER AT WORK OR AT HOME. EMPLOYEE DID NOT REPORT THE INJURY AS WORK RELATED UNTIL 11-8-93.

August 13, 1993 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Unimin Corp · Struck by... (Not Elsewhere Classified)

THE EE WAS CUTTING A CONVEYOR BELT WITH A UTILITY KNIFE WHEN THE KNIFE SLIPPED CAUSING A 1 INCH CUT APPROX. 1/16 INCH DEEP ON HIS RIGHT LEG ABOVE THE KNEE. THE CUT REQUIRED TWO STITCHES TO CLO SE THE WOUND.

1992 · 5 incidents

November 4, 1992 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Unimin Corp · Struck against stationary object

EE WAS UNDERNEATH R-25 EUCLID HAUL TRUCK GREASING HE BUMP HIS HEAD ON THE DUMP BED AS HE WAS RISING FROM UNDER THE TRUCK THE EE REPORTED THE INCIDENT ON THE DATE THAT IT HAPPENED HOWEVER HE RE FUSED ANY FIRST AID OR MEDICAL TREATMENT UNTIL 12-17-92 AND WAS NOT REPORTABLE UNTIL THAT DATE.

September 23, 1992 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Unimin Corp · Struck by flying object

THE EE WAS DRIVING A BOLT OUT OF A BALLMILL DRIVE COUPLING WHEN A PIECE OF METAL CHIPPED OFF, STRIKING THE EE IN THE UPPER CHEST. THE WAS TAKEN TO THE EMERGENCY REOOM WHERE THE METAL CHIP WAS REMOVED AND THE INCISION SUTURED. NO FURTHER MEDICAL ATTENTION IS ANTICIPATED. AN ACCIDENT INVESTIGATION SHOWED THAT NEITHER THE HAMMER OR BOLT WERE MUSHROOM AND THERE WERE NO VISIBLE CRACKS.

June 1, 1992 OK · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Unimin Corp · Struck against stationary object

EMPLOYEE WAS RELEASING THE TAILGATE LEVER ON A GMC GENERAL DUMP TRUCK. THE LEVER WHEN RELEASED STRUCK THE EMPLOYEE ON THE FLESHY AREA BETWEEN THE THUMB AND INDEX FINGER TEARING A 1/2" CUT, REQ UIRING 4 STITCHES. THERE WERE NO SHARP EDGES THAT WOULD ACCOUNT FOR A CUT. A NOTCH THAT IS USED TO HOLD A RETAINING RING THAT PREVENTS THE TAILGATE FROM RELEASING PREMATURELY AND IS STANDARD

April 29, 1992 OK · Metal/Non-Metal welder (shop) MACHINERY
Unimin Corp · Struck by flying object

EMPL PATCHING HOLES IN A ROTARY DRYER WITH A WELDER. EMPL BELIEVES A RUST PARTICLE BOUNCED ON THE INSIDE OF WELDING HOOD INTO EYE. EMPL WAS WEARING PROPER PERSONAL PROTECTIVE DEVICES AT THE TI ME OF THE INJURY.

April 17, 1992 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Unimin Corp · Over-exertion (Not Elsewhere Classified)

EE WAS FREEING A LARGE ROCK HUNG IN THE JAW CRUSHER FEED CHUTE WITH A BAR WHEN HE STRAIN A MUXCLE IN HIS LEFT SHOULDER.

1991 · 3 incidents

December 18, 1991 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Unimin Corp · Fall from machine

EMPLOYEE WAS DISMOUNTING A EUCLID R-25 HAUL TRUCK AND HE MISSED THE HANDRAIL AND FELL FROM THE TOP STEP TO THE GROUND.EMPLOYEE HIT THE BACK OF HIS HEAD AND LOST CONSCIOUSNESS.EMPLOYEE STATED T HAT HE NEEDED TO USE THE RESTROOM AND HE WAS IN TO BIG OF A HURRY WHILE DISMOUNTING THE VEHICLE.

November 12, 1991 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Unimin Corp · Over-exertion in pulling or pushing objects

EMPLOYEE WAS ADJUSTING A SPLITTER GATE LCOATED APPROX 20FT FROM GROUND LEVEL BY USING A LEVER ATTACHED TO IT APPROX 18FT LONG AS THE EMPLOYEE PULLED ON T HE LEVER HE STRAINED THE MUSCLES IN HI S SHOULDERS & POSSIBLE TWO DISKS

February 15, 1991 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Unimin Corp · Fall down stairs

EMPLOYEE WAS ASCENDING A STAIRWAY WHEN EMPLOYEE REACHED THE T OP STEP HE MISJUDGED THE STEP CAUSING HIM TO FALL EMPLOYEE TWISTED HIS BACK EMPLOYEE STA TED HE DID NOT HIT ANYTHING DURING THE F ALL AFTER THE INVESTIGATION THE STAIRWAY WAS FOUND TO BE IN EXCELLENT CONDIT ION NO CLUTTER WAS FOUND EMPLOYEE WAS USING THE HANDRAILS

1990 · 4 incidents

December 28, 1990 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Unimin Corp · Over-exertion (Not Elsewhere Classified)

EMPL WAS DECENDING STAIRWAY AT END OF SHIFT WHEN HE SLIPPED TWISTING RIGHT KNEE. STAIRWAY WAS NEW CONSTRUCTION WITH HANDRAILS. THERE WERE NO BENT STEPS OR HANDRAILS THAT WOULD CONTRIBUTE TO AC CIDENT. EMPL DID NOT REPORT INJ OR SEEK MEDICAL ATTENTION UNTIL 01/02. EMPL STATED HE WAS NOT USING HANDRAILS.

November 17, 1990 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Unimin Corp · Over-exertion (Not Elsewhere Classified)

EMPL WAS BENDINGOVER TO HELP LOAD CONVEYOR BELT WHEN HE PULLED MUSCLE IN BACK. HE WAS NOT ACTUALLY LOADING BELT WHEN INJ OCCURRED ONLY BENDING OVER. EMPL DID NOT REPORT INJ FOR 2 DAYS OR REQUE ST MEDICAL ATTENTION FOR 3 DAYS AFTER INJ. OFFICCIAL DIAGNOSIS WAS MUSCLE PULL LOWER BACK & WAS INSTRUCTED TO REST FOR ONE WEEK.

August 7, 1990 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Unimin Corp · Over-exertion (Not Elsewhere Classified)

EMPL AT JAW CRUSHER USING STEEL PRYBAR TO UNLODGE LARGE ROCKS FROM JAW.HAD BEEN WORKING AT JAW SINCE START OF SHIFT.LOWER BACK STARTED HURTING 1:PM.

June 30, 1990 OK · Metal/Non-Metal pumper HANDLING OF MATERIALS
Unimin Corp · Over-exertion in lifting objects

UNLOADING BAGS OF HYDROMITE EXPER SEVERE PAIN IN LOWER BACK

1989 · 7 incidents

October 20, 1989 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Delta Mining Corp · Fall to the walkway or working surface

HE WAS WASHING THE SIDE WALK WITH A WATER HOSE, AND PULLED ON THE HOSE AND LOST HIS FOOTING ON THE SLICK PAVEMENT AND FELL.

October 16, 1989 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Delta Mining Corp · Fall onto or against objects

HE WAS USING COMEALONG TO OPEN #2 STEDMAN CAGE. COMEALONG SLIPPED & HE FELL BACKWARDS AGAINST OTHER STEDMAN.

October 5, 1989 OK · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)
Delta Mining Corp · Struck by falling object

WHILE FABRICATING A GEAR BOX MOUNT FRAME, WAS HAMMERING BASES IN PLACE AND THE FRAME SLIPPED OFF OF SAW HORSES AND FELL ON HIS FOOT. EMPLOYEE WAS WEARING STEEL TOED PROTECTIVE FOOT WEAR, HOWEV ER THE FRAME STRUCK THE FOOT BEHIND THE STEEL TOES.

September 16, 1989 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Delta Mining Corp · Struck against a moving object

HE WAS DRIVING A LOADED WATER TRUCK AND WAS HIT, FROM BEHIND, BY A LOADED HAUL TRUCK.

August 30, 1989 OK · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in lifting objects

LIFTING PANS OF SHOT HOLE MATERIAL BY HAND WHILE LIFTING PANS EMP STRAINED LOWER BACK AND R LEG. REQ MED ATTENTION 9-9-89. PAIN BECAME SEVERE .

July 14, 1989 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Delta Mining Corp · Fall onto or against objects

SLIPPED IN MUD AND HIT HAND ON GUARD RAIL WRENCHED HIS BACK.DIDNT FALL.

April 8, 1989 OK · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion (Not Elsewhere Classified)

UN ROLLING STEEL CABLE OFF OF A SPOOL STRAINED BACK & WAS DOING THIS BY HAND ROLLING THE SPOOL ACROSS THE GROUND

1988 · 5 incidents

September 30, 1988 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Delta Mining Corp · Fall to lower level, (Not Elsewhere Classified)

TWISTED ANKLE AS HE STEPPED OFFOF BACKHOE,STEPPED IN LOW SPOT.

July 27, 1988 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in pulling or pushing objects

CLEANING OUT RAIL CARS AND STRAINING TO OPEN CAR DOORS

July 16, 1988 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Delta Mining Corp · Fall to the walkway or working surface

TIGHTENING BOLT ON MILL & SOCKET CAME OFF & HE FELL ON LEFT ANKLE.

June 1, 1988 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OCCUPATIONAL SKIN DISEASES
Delta Mining Corp · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE NOT WEARING GLOVES WHILE USING SOLVENTS AND UNAWARE OF POSSIBLE ALLERGIC REACTION.

March 31, 1988 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion (Not Elsewhere Classified)

MOVING MOTOR AND BLOWER ON DUST COLLECTORSPRAINED NECK,CENTER OF ABCK AND LOWER BACK.

1987 · 4 incidents

September 12, 1987 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in lifting objects

LIFTING AND CAR9YING PIPE UP & DOWN STAIRS WHILE WORKING ON AN AIR SLIDE ON THE SO. END OF PLANT.

September 2, 1987 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Delta Mining Corp · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS PI7KING UP A PIPE CLEANING SNAKE WHEN IT UNWOUND AND HIT HIMACROSS THE LEFT BROW.

April 30, 1987 OK · Metal/Non-Metal SLIP OR FALL OF PERSON
Delta Mining Corp · Fall onto or against objects

SLIPPED AND FEL5 APPROX. 3 FT STRIKING FOREHEAD ON ANGLE IRON, CAUSING A CUT AND ABRASIONS. NO PERMANENT DAMAGE. STICTHES WERE REQUIRED. RELEASED THE SAME DAY.

January 7, 1987 OK · Metal/Non-Metal outside foreman, leadman MACHINERY
Delta Mining Corp · Struck by... (Not Elsewhere Classified)

USING AIR HAMME9 TO DRILL A HOLE IN ROCK AND THE HAMMER BOUNCED HITTING RIGHT LITTLE TOE.

1986 · 6 incidents

May 16, 1986 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Delta Mining Corp · Fall from ladders

FELL WHILE WORK3NG ON CONSTRUCTION OF BUILDING IRON HIT LEG & THE FALL BROKE LEFT ARM. LACERATION OF LEFT LEG.

May 16, 1986 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Delta Mining Corp · Fall from ladders

FELL FROM LADDE9 WHILE WORKING ON CONSTRUCTION OF BUILDING. THE FALL BROKE HIS LEFT ARM.

March 22, 1986 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in lifting objects

CHANGING HAMMER8 ON MILL SPRAINED LOWER BACK WHILE LIFTING HAMMERS

February 19, 1986 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STRIKING OR BUMPING
Delta Mining Corp · Struck against stationary object

WALKING AROUND 5 SCREW CONVEYOR AND WALKED INTO A SCREW LID WHILE UNBOGGING SCREW

January 10, 1986 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Delta Mining Corp · Caught in, under or between a moving and a stationary object

UNLOADING OIL B5RRLELS AND CRUSHED FINGERS BETWEEN BARRELS

1985 · 4 incidents

October 14, 1985 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Delta Mining Corp · Fall down stairs

SLIPPED ON STAIRS AND CAUGHT SELF WITH LEFT ARM ON HAND RAILS.

October 2, 1985 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Delta Mining Corp · Fall from machine

ATTEMPTING TO LOOSEN AIR HOSE FOR REPAIR FROM TOP OF DUST TANK, LOST FOOTING WHILE ATTEMPTING TO TURN.

May 21, 1985 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion (Not Elsewhere Classified)

GOT IN TRUCK SAT DOWN HURTING LOWER BACK

April 23, 1985 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Delta Mining Corp · Fall onto or against objects

CHECKING LUG NUTS ON EUCLID,WRENCH SLIPPED,HE FELL AND CAUGHT SIDE OF FACE OF BALVE STEM,RESULTING IN A CUT WHICH TOOK STITCHES TO CLOSE.

1984 · 5 incidents

September 15, 1984 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STEPPING OR KNEELING ON OBJECT
Delta Mining Corp · Struck against stationary object

EMPL WORKING ON AC SCREENS STEPPED DOWN ON LIFTING EYE AND TURNED LEFT ANKLE.

June 24, 1984 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ELECTRICAL
Delta Mining Corp · Flash burns (electric)

EMPLOYEE WAS HELPING TO CHANGE A FUSE IN AN ELECTRICAL BOX WHEN IT CAUSED AN ELECTRICAL ARC AND HIS EYES WERE BURNED

June 24, 1984 OK · Metal/Non-Metal backhoe operator, trackhoe operator ELECTRICAL
Delta Mining Corp · Flash burns (electric)

EMPLOYEE WAS CHANING A FUSE IN A ELECTRICAL BOX WHEN IT CAUSED AN ELECTRICAL ARC & BURNED HIS HANDS.

February 2, 1984 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in lifting objects

EMPLOYEE IS WELDER IN HAMMER SHOP HE LIFTED A MILL HAMMER AND STRAINED BACK

1983 · 4 incidents

October 31, 1983 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Over-exertion in lifting objects

LIFTING HAMMERS IN HAMMER SHOP THAT GO ON THE #1 MILL.

October 13, 1983 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Delta Mining Corp · Struck by falling object

DROPPED A 3IN STEEL PIPE ON TOE

August 22, 1983 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Delta Mining Corp · Struck by... (Not Elsewhere Classified)

TIGHTENING BOLT WHEN WRENCH SLIPPED AND HIT HAND TEARING LEGIMENTS

April 30, 1983 OK · Metal/Non-Metal security guard, watchman SLIP OR FALL OF PERSON
Delta Mining Corp · Fall from machine

EMPLOYEE WAS STEPPING DOWN FROM AHAUL TRUCK AND TWISTED BACK TWISTED OR STRAINED BACK