Mining Incidents

DSM Portable 2: 26 MSHA citations Metal/Non-Metal

FERGUSON, Marshall County, IA  ·  Abandoned
MSHA Mine ID: 1300932

DSM Portable 2 has $3K 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
21
Years on record
1983–2014
Latest incident
Jun 2014
Compliance record
MSHA citations since 2001
26
citations
1
significant & substantial
$2,555
proposed penalties
$2,555
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
48
inspections on record
380
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: 380 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

DSM Portable 2 has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
26 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-09-05.
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.
3.8%
significant & substantial
0.0%
high negligence or reckless
3.8%
reasonably likely or greater
65.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 19.2% low, 80.8% 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: 2024-11-26
0%
of limit-tested samples over the exposure limit
7
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg2
  • Unlisted Particulate, respirable, <1% Qtz2
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-11-26 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Truck Driver
2024-11-26 Quartz, respirable, >1% Qtz 0.23 Crusher Oper/Worker
2019-05-21 Quartz, respirable, >1% Qtz 0.36 0.61 0.59 Cleanup Man
2019-05-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-05-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2010-01-27 Unlisted Particulate, respirable, <1% Qtz 0.32 Mechanic
2010-01-27 Unlisted Particulate, respirable, <1% Qtz 0.29 Mechanic
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.

DSM Portable 2 recorded 0.00 reportable injury cases per 100 full-time workers in 2007.

Injury rate, 2007
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 3.30 and the all-US-mining average was 3.77 cases per 100 workers.
In Iowa, metal and nonmetal mining averaged 3.26 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
2007 * 0.00 0.00 0.000
2006 * 9.55 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. Martin Marietta Aggregates 1950 to 2005
  2. Martin Marietta Materials 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2025 0
2024 0
2023 0
2022 0
2021 5
2020 3
2019 10
2017 7
2016 7
2015 7
2014 5
2013 7
2012 7
2011 7
2010 8
2009 9
2008 10
2007 10
2006 8
2005 8
2004 9
2003 8
2002 10
2001 7
2000 5
Source: MSHA quarterly employment and production, updated weekly.

DSM Portable 2 sits in Marshall County, Iowa, where the Census mining category is 0.6% 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.
Marshall County, Iowa · Population 39,971
0.6%
Mining share of county employment
$72,785
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
2025 Q2 0 0 0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 0 2 0
2024 Q2 0 0 0
2024 Q1 0 0 0
2023 Q4 0 0 0
2023 Q3 0 0 0
Show 86 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
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
2021 Q4 0 0 0
2021 Q3 7,839 0 0 0.0
2021 Q2 0 0 0
2021 Q1 5,141 0 0 0.0
2020 Q4 7,532 0 0 0.0
2020 Q3 360 0 0 0.0
2020 Q2 0 0 0
2020 Q1 0 0 0
2019 Q4 7,664 0 0 0.0
2019 Q3 7,285 0 0 0.0
2019 Q2 13,207 1 0 75.7
2017 Q1 4,070 0 0 0.0
2016 Q4 4,122 0 0 0.0
2016 Q3 3,942 0 0 0.0
2016 Q2 4,004 0 0 0.0
2016 Q1 3,416 2 1 585.5
2015 Q4 4,175 0 0 0.0
2015 Q3 3,783 0 0 0.0
2015 Q2 4,035 0 0 0.0
2015 Q1 3,151 1 0 317.4
2014 Q4 4,310 0 0 0.0
2014 Q3 3,717 0 0 0.0
2014 Q2 4,588 1 0 218.0
2014 Q1 0 0 0
2013 Q4 4,242 0 0 0.0
2013 Q3 4,358 0 0 0.0
2013 Q2 4,228 0 0 0.0
2013 Q1 3,641 0 0 0.0
2012 Q4 3,669 0 0 0.0
2012 Q3 3,761 0 0 0.0
2012 Q2 3,875 0 0 0.0
2012 Q1 4,574 3 0 655.9
2011 Q4 4,109 0 0 0.0
2011 Q3 3,722 0 0 0.0
2011 Q2 3,590 0 0 0.0
2011 Q1 3,361 1 0 297.5
2010 Q4 4,098 0 0 0.0
2010 Q3 4,590 0 0 0.0
2010 Q2 4,512 0 0 0.0
2010 Q1 3,194 0 0 0.0
2009 Q4 4,114 0 0 0.0
2009 Q3 4,896 0 0 0.0
2009 Q2 5,306 1 0 188.5
2009 Q1 4,064 2 0 492.1
2008 Q4 4,824 0 0 0.0
2008 Q3 5,398 0 0 0.0
2008 Q2 5,166 0 0 0.0
2008 Q1 4,344 1 0 230.2
2007 Q4 5,307 0 0 0.0
2007 Q3 3,202 2 0 624.6
2007 Q2 6,742 0 0 0.0
2007 Q1 6,136 2 0 325.9
2006 Q4 6,734 0 0 0.0
2006 Q3 5,172 0 0 0.0
2006 Q2 5,352 0 0 0.0
2006 Q1 3,693 0 0 0.0
2005 Q4 3,944 1 0 253.5
2005 Q3 4,419 0 0 0.0
2005 Q2 4,494 0 0 0.0
2005 Q1 4,056 0 0 0.0
2004 Q4 3,590 2 0 557.1
2004 Q3 3,018 0 0 0.0
2004 Q2 3,171 0 0 0.0
2004 Q1 3,958 1 0 252.7
2003 Q4 3,117 0 0 0.0
2003 Q3 3,238 0 0 0.0
2003 Q2 3,237 0 0 0.0
2003 Q1 3,119 0 0 0.0
2002 Q4 3,094 0 0 0.0
2002 Q3 3,482 0 0 0.0
2002 Q2 5,720 0 0 0.0
2002 Q1 4,960 0 0 0.0
2001 Q4 2,508 0 0 0.0
2001 Q3 7,773 3 0 386.0
2001 Q2 3,046 0 0 0.0
2001 Q1 2,165 0 0 0.0
2000 Q4 2,089 0 0 0.0
2000 Q3 3,038 0 0 0.0
2000 Q2 2,773 0 0 0.0
2000 Q1 726 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

21 on file

2014 · 1 incident

June 19, 2014 IA · Metal/Non-Metal welder (shop) OTHER
Martin Marietta Materials · Struck by flying object

Wind gust stirred up dust that got in the employee's eye while walking. Notification that employee had gotten medical treatment, outside working hours, (eye flushing, antibiotics) wasn't received until 9/25/14.

2006 · 1 incident

November 14, 2006 IA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDTOOLS (NONPOWERED)
Martin Marietta Materials · Struck against stationary object

EE was cleaning of rock and dirt off of a low-boy trailer by sweeping the material with his gloved hand. The employee contacted a steel splinter approximately 1 inch in length that penetrated his glove and pierced his right index finger nearly going completely through the finger.

2005 · 1 incident

February 24, 2005 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion in lifting objects

EE WAS STANDING ON THE GROUND REMOVING CHAINS AND BINDERS FROM A LOW-BOY TRAILER IN PREPARATION TO LOAD A TRUCK. ONE OF THE CHAINS HUNG UP ON THE TRAILER AS THE EE PULLED ON IT. EE FELT A "POP" IN RIGHT SHOULDER

2002 · 1 incident

August 30, 2002 IA · Metal/Non-Metal electrician, lineman HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

THE INTERNAL COIL OF THE FLEXIBLE CONDUIT IS EMTREMELY SHARP AND WHEN THE OLD FITTING WAS REMOVED THE COIL WIRE CUT THE LEFT THUMB BAS. SEVERED FLEXOR TENDON REQUIRING SURGERY ON 8-31-02 AND A GAINS ON 9-14-02 TO REATTACH.

1999 · 1 incident

June 25, 1999 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by falling object

EE WAS DISMANTLING A BOOM ON A 966 LOADER. THE LTILT LINK SLIPPED OFF AND BOUNCED OFF OF THE FRONT TIRE LANDING ON EE S LEFT FOOT BREAKING 3 BONES ON TOP OF FOOT.

1997 · 1 incident

April 24, 1997 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

BEARING WAS TUCK IN A SCREEN HOUSING. THE EE ATTEMPTED TO REMOVE IT BY STRIKING IT WITH A HAMMER. A CHIP CAME OFF THE BEARING AND EMBEDDED IN THE EE S LEG.

1996 · 1 incident

September 9, 1996 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Aggregates · Struck by flying object

WHILE BUILDING A PONTOON, GRINDING, CUTTING, CHIPPING AND WELDING, THE EE GOT A PIECE OF STEEL IN HIS EYE.

1995 · 1 incident

August 10, 1995 IA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

EE WAS CLOSING RAIL CAR DOOR WITH A PRY BAR. THE BAR SLIPPED SMASHING THE EE S RIGHT THUMB BETWEEN BAR AND RAIL ROAD RAIL.

1994 · 3 incidents

October 13, 1994 IA · Metal/Non-Metal master mechanic, foreman, supervisor OTHER
Martin Marietta Aggregates · (Not Elsewhere Classified)

INJURED WAS STANDING ON THE FLOOR OPERATING THE OVERHEAD HOIST. OTHER EMPLOYEE HEARD A NOISE ANDSAW INJURED LYING ON THE FLOOR. HE RAN TO HIM, AND SAW WHAT HE THOUGHT TO BE A HEART ATTACK. HE THEN RAN AND TOLD JANICE CRESWELL IN THE OFFICE WHAT HAD HAPPENED. HE THEN WENT BACK TO INJURED AND DID WHAT HE COULD UNTIL EMT ARRIVED.

April 4, 1994 IA · Metal/Non-Metal welder (shop) MACHINERY
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS CHIPPING SLAG OFF A WELD WHEN A PIECE OF PAINT BOUNCED OFF HIS HARD HAT WENT INSIDE HIS GLASSES & INTO HIS EYE

February 23, 1994 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion in pulling or pushing objects

LIFTING AND PUSHING ON GENERATOR TRAILER DOOR (OVERHEAD DOOR) WHICH WAS STUCK FROM BUILDUP OF LIME DUST CAUSED EE TO STRAIN HIS LEFT SHOULDER.

1992 · 1 incident

November 24, 1992 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

THE EMPLOYEE STATED HE WAS GRINDING A SHORT PIECE OF PIPE WHEN IT SLIPPED AND KICKED BACK STRIKING HIS LEFT THUMB CAUSING A FRACTURE AND LACERATION.

1990 · 1 incident

July 13, 1990 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Aggregates · Caught in, under or between running or meshing objects

EMPLOYEE WAS LOWERING A HOIST WITH A ROPE AND PULLEY.HE GRIPPED THE ROPE AS IT WAS SLIPPING THOUGH HIS HAND AND HIS FINGERS WERE PULLED THOUGH THE PULLEY.HE SUSTAINED AMPUTATIONS TO HIS LEFT M IDDLE AND RING FINGERS,TO THE FIRST KNUCKLES.

1989 · 3 incidents

November 21, 1989 IA · Metal/Non-Metal electrician, lineman SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall to the walkway or working surface

EMPLOYEE STATED HE TRIPPED OVER A CLUTCH ASSEMB.THAT WAS STICKING OUT INTO THE AISLE.HE STRUCK HIS HEAD ON THE CONCRETE FLOOR CAUSING A LACERATION.HE ALSO SPRAINED HIS LEFT WRIST.

October 18, 1989 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck against stationary object

EMPLOYEE BELIEVES HE STRUCK HIS ELBOW AGAINST A PIECE OF STEEL. HE FEELS THIS EVENTUALLY CAUSED AN INFECTION TO SET IN.

May 22, 1989 IA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Martin Marietta Aggregates · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS MOVING FUEL TRAILOR TO NEW LOCATION. WHILE SETTING DOWN THE TONGUE OF THE TRAILER, HIS FINGER WAS CAUGHT BETWEEN TRAILORS TONGUE AND THE BOLT ON THE TRAILOR, RESULTING IN FRACTUR ED TIP OF RING FINGER ON RIGHT HAND.

1988 · 2 incidents

June 22, 1988 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

EMPL CLOSING RR CAR HOPPER DOOR.HOLDING DOOR LATCH WITH ONE HAND CLOSING DOOR WITH OTHER HAND.HE CLOSED DOOR ON LEFT INDEX FINGER.

February 26, 1988 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck against stationary object

EMPL CLIMBING STEP LADDER TO GET TO TOP PAD OF TRANSMISSION STRUCK HEAD ON PROTRUDING PART OF WALKWAY ON ENDLOADER.1'' CUT ON FOREHEAD.

1985 · 1 incident

January 2, 1985 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver FIRE
Martin Marietta Aggregates · Contact with hot objects or substances

REMOVING LIFTING EYE FROM CONVEYOR WITH TORCH. SPARK IGNITED SHIRT SLEEVES CAUGING BURNS TO BOTH HANDS

1983 · 2 incidents

December 28, 1983 IA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Martin Marietta Aggregates · Contact with hot objects or substances

DIRT WAS FROZEN ON SCRAPER CABLES-ACETYLENE TORCH WAS BEING USED TO THAW DIRT - FLAME FLARED WHEN IT HIT THE FROZEN DIRT - WIND BLEW THE FLARED FLAME OVER EMPLOYEES SAFETY GLASSSES

October 4, 1983 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

TAKING COVER OFF OVER HYD VALVES USING SCREWDRIVER TO LIFT COVER SCREWDRIVER SLIPPED PINCHING FINGER PULLED JOINT OUT OF SOCKET