Mining Incidents

Portable Wash/Crushing Plant: 37 MSHA citations Metal/Non-Metal

BMC Aggregates LC · Surface
Waterloo, Black Hawk County, IA  ·  Intermittent
MSHA Mine ID: 1302077

Portable Wash/Crushing Plant 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
2
Years on record
1986–2019
Latest incident
Nov 2019
Compliance record
MSHA citations since 2001
37
citations
7
significant & substantial
$6,676
proposed penalties
$6,676
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
41
inspections on record
317
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: 317 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2017-06-19.
On record since 2017.
Source: MSHA imminent-danger order records, updated weekly.

Portable Wash/Crushing Plant 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
36 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-02-26.
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.
19.4%
significant & substantial
5.6%
high negligence or reckless
19.4%
reasonably likely or greater
55.6%
permanently disabling or fatal if injury occurs
Negligence coding: 2.8% none, 13.9% low, 77.8% moderate, 5.6% 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: 2025-02-27
3
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-02-27 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2017-06-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2017-06-20 Respirable dust, <.1mg 0 Washer 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. Basic Materials Corp 1985 to 2006
  2. BMC Aggregates LC 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 3
2023 1
2022 2
2021 2
2020 5
2019 5
2018 3
2017 2
2016 1
2015 3
2014 0
2013 2
2012 1
2011 1
2010 1
2009 1
2008 2
2007 3
2006 2
2005 2
2004 2
2003 2
2002 2
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Portable Wash/Crushing Plant sits in Black Hawk County, Iowa, 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.
Black Hawk County, Iowa · Population 130,693
0.1%
Mining share of county employment
$64,581
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 346 0 0 0.0
2026 Q1 0 0 0
2025 Q4 0 0 0
2025 Q3 0 0 0
2025 Q2 431 0 0 0.0
2025 Q1 2,663 1 0 375.5
2024 Q4 186 0 0 0.0
2024 Q3 672 2 0 2976.2
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 0 0 0
2024 Q1 1,458 0 0 0.0
2023 Q4 190 0 0 0.0
2023 Q3 0 0 0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 847 0 0 0.0
2022 Q2 506 0 0 0.0
2022 Q1 0 0 0
2021 Q4 0 0 0
2021 Q3 0 0 0
2021 Q2 0 0 0
2021 Q1 2,721 1 0 367.5
2020 Q4 5,309 0 0 0.0
2020 Q3 4,943 0 0 0.0
2020 Q2 1,583 0 0 0.0
2020 Q1 0 0 0
2019 Q4 5,996 3 1 500.3
2019 Q3 5,197 0 0 0.0
2019 Q2 3,505 0 0 0.0
2019 Q1 0 0 0
2018 Q4 2,678 0 0 0.0
2018 Q3 412 0 0 0.0
2018 Q2 632 0 0 0.0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 37 0 0 0.0
2017 Q2 362 4 2 11049.7
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 44 1 0 22727.3
2016 Q2 0 0 0
2016 Q1 607 0 0 0.0
2015 Q4 384 0 0 0.0
2015 Q3 944 0 0 0.0
2015 Q2 776 0 0 0.0
2015 Q1 152 0 0 0.0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 0 0 0
2014 Q1 0 1 0
2013 Q4 125 0 0 0.0
2013 Q3 248 0 0 0.0
2013 Q2 760 0 0 0.0
2013 Q1 0 0 0
2012 Q4 72 0 0 0.0
2012 Q3 95 0 0 0.0
2012 Q2 376 2 1 5319.1
2012 Q1 0 0 0
2011 Q4 71 0 0 0.0
2011 Q3 539 0 0 0.0
2011 Q2 115 1 0 8695.7
2011 Q1 75 0 0 0.0
2010 Q4 577 0 0 0.0
2010 Q3 372 8 1 21505.4
2010 Q2 89 0 0 0.0
2010 Q1 74 0 0 0.0
2009 Q4 475 0 0 0.0
2009 Q3 309 0 0 0.0
2009 Q2 424 1 0 2358.5
2009 Q1 265 0 0 0.0
2008 Q4 286 0 0 0.0
2008 Q3 388 0 0 0.0
2008 Q2 236 1 1 4237.3
2008 Q1 559 0 0 0.0
2007 Q4 603 0 0 0.0
2007 Q3 416 0 0 0.0
2007 Q2 360 0 0 0.0
2007 Q1 132 0 0 0.0
2006 Q4 233 0 0 0.0
2006 Q3 343 0 0 0.0
2006 Q2 411 2 0 4866.2
2006 Q1 764 0 0 0.0
2005 Q4 481 1 0 2079.0
2005 Q3 230 1 0 4347.8
2005 Q2 309 0 0 0.0
2005 Q1 215 0 0 0.0
2004 Q4 379 0 0 0.0
2004 Q3 158 0 0 0.0
2004 Q2 293 0 0 0.0
2004 Q1 280 0 0 0.0
2003 Q4 129 0 0 0.0
2003 Q3 181 0 0 0.0
2003 Q2 281 0 0 0.0
2003 Q1 616 0 0 0.0
2002 Q4 357 0 0 0.0
2002 Q3 1,204 0 0 0.0
2002 Q2 406 1 0 2463.1
2002 Q1 399 0 0 0.0
2001 Q4 333 0 0 0.0
2001 Q3 303 0 0 0.0
2001 Q2 748 2 0 2673.8
2001 Q1 99 0 0 0.0
2000 Q4 315 0 0 0.0
2000 Q3 1,211 0 0 0.0
2000 Q2 2,418 0 0 0.0
2000 Q1 968 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2019 · 1 incident

November 22, 2019 IA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator FALLING/SLIDING/ROLLING MATERIALS
BMC Aggregates LC · Struck by rolling or sliding object

A rock rolled out of overflow chute knocking employee's hard hat off and then another rolled out and hit the employee on top of head.

1986 · 1 incident

September 2, 1986 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Basic Materials Corp · Struck by falling object

WORKER WAS WALK3NG AROUND END OF CONVEYOR.CONVEYOR WAS HELD UP BY 1 LOADER CHAIN.THE CHAIN CAME UNHOOKEDF CAUSING END OF CONVEYOR TO FALL -INJURING WORKER.