Mining Incidents

Treasure Valley Portable #2: 27 MSHA citations Metal/Non-Metal

Controlled by CRH PLC
Mountain Home, Idaho County, ID  ·  Intermittent
MSHA Mine ID: 1001742

Treasure Valley 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
3
Years on record
2002–2025
Latest incident
Apr 2025
Compliance record
MSHA citations since 2001
27
citations
4
significant & substantial
$3,093
proposed penalties
$3,093
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
42
inspections on record
381
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: 381 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Treasure Valley 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
27 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-01-08.
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.
14.8%
significant & substantial
0.0%
high negligence or reckless
14.8%
reasonably likely or greater
44.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 11.1% low, 88.9% 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: 2020-10-06, 5 years ago
0%
of limit-tested samples over the exposure limit
8
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
  • Unlisted Particulate, respirable, <1% Qtz3
  • Quartz, respirable, >1% Qtz2
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-10-06 Quartz, respirable, >1% Qtz 0.28 Crusher Oper/Worker
2020-10-06 Quartz, respirable, >1% Qtz 0.28 0.92 0.30 Front-end Loader Operator
2010-06-29 Unlisted Particulate, respirable, <1% Qtz 0.25 Front-end Loader Operator
2010-06-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-12-13 Unlisted Particulate, respirable, <1% Qtz 0.27 Crusher Oper/Worker
2005-12-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-04-18 Unlisted Particulate, respirable, <1% Qtz 0.18 Crusher Oper/Worker
2002-04-18 Respirable dust, <.1mg 0 Front-end Loader 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. Mountain Home Redi-Mix Inc 1986 to 2005
  2. Idaho Materials & Construction 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 31
2025 24
2024 9
2023 8
2022 7
2021 6
2020 6
2019 3
2018 2
2017 4
2016 3
2015 1
2014 1
2013 2
2012 1
2011 0
2010 1
2009 1
2008 2
2007 2
2006 2
2005 2
2004 2
2003 2
2002 2
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Treasure Valley Portable #2 sits in Idaho County, Idaho, where the Census mining category is 0.9% 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.
Idaho County, Idaho · Population 17,120
0.9%
Mining share of county employment
$60,975
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 7,284 0 0 0.0
2026 Q1 3,481 0 0 0.0
2025 Q4 2,724 0 0 0.0
2025 Q3 4,009 0 0 0.0
2025 Q2 4,288 0 0 0.0
2025 Q1 2,041 1 0 490.0
2024 Q4 2,245 0 0 0.0
2024 Q3 2,315 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,215 0 0 0.0
2024 Q1 1,985 0 0 0.0
2023 Q4 1,547 0 0 0.0
2023 Q3 1,924 0 0 0.0
2023 Q2 1,759 0 0 0.0
2023 Q1 1,821 0 0 0.0
2022 Q4 2,052 0 0 0.0
2022 Q3 1,868 0 0 0.0
2022 Q2 1,836 0 0 0.0
2022 Q1 1,224 2 0 1634.0
2021 Q4 2,160 0 0 0.0
2021 Q3 1,307 0 0 0.0
2021 Q2 2,710 0 0 0.0
2021 Q1 2,246 0 0 0.0
2020 Q4 1,800 0 0 0.0
2020 Q3 2,379 0 0 0.0
2020 Q2 1,602 0 0 0.0
2020 Q1 825 0 0 0.0
2019 Q4 913 0 0 0.0
2019 Q3 692 0 0 0.0
2019 Q2 258 0 0 0.0
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 418 0 0 0.0
2018 Q2 688 0 0 0.0
2018 Q1 0 0 0
2017 Q4 1,224 0 0 0.0
2017 Q3 1,040 0 0 0.0
2017 Q2 1,514 1 0 660.5
2017 Q1 756 1 0 1322.8
2016 Q4 1,358 0 0 0.0
2016 Q3 1,093 0 0 0.0
2016 Q2 660 6 1 9090.9
2016 Q1 433 0 0 0.0
2015 Q4 262 0 0 0.0
2015 Q3 438 0 0 0.0
2015 Q2 0 0 0
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 286 0 0 0.0
2014 Q1 592 0 0 0.0
2013 Q4 781 0 0 0.0
2013 Q3 573 0 0 0.0
2013 Q2 859 0 0 0.0
2013 Q1 0 0 0
2012 Q4 297 1 0 3367.0
2012 Q3 245 0 0 0.0
2012 Q2 324 0 0 0.0
2012 Q1 0 0 0
2011 Q4 267 0 0 0.0
2011 Q3 0 0 0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q3 119 0 0 0.0
2010 Q2 251 0 0 0.0
2010 Q1 0 0 0
2009 Q4 25 0 0 0.0
2009 Q3 249 0 0 0.0
2009 Q2 0 0 0
2009 Q1 0 0 0
2008 Q4 1,172 0 0 0.0
2008 Q3 494 0 0 0.0
2008 Q2 750 0 0 0.0
2008 Q1 642 0 0 0.0
2007 Q4 1,036 0 0 0.0
2007 Q3 1,444 0 0 0.0
2007 Q2 1,379 0 0 0.0
2007 Q1 444 0 0 0.0
2006 Q4 1,070 1 0 934.6
2006 Q3 1,175 1 0 851.1
2006 Q2 1,044 0 0 0.0
2006 Q1 728 0 0 0.0
2005 Q4 1,265 2 0 1581.0
2005 Q3 1,331 1 0 751.3
2005 Q2 459 0 0 0.0
2005 Q1 974 0 0 0.0
2004 Q4 961 0 0 0.0
2004 Q3 1,145 0 0 0.0
2004 Q2 1,142 2 0 1751.3
2004 Q1 517 0 0 0.0
2003 Q4 697 0 0 0.0
2003 Q3 1,335 0 0 0.0
2003 Q2 1,083 0 0 0.0
2003 Q1 980 2 0 2040.8
2002 Q4 662 0 0 0.0
2002 Q3 780 0 0 0.0
2002 Q2 560 2 1 3571.4
2002 Q1 720 0 0 0.0
2001 Q4 688 0 0 0.0
2001 Q3 760 0 0 0.0
2001 Q2 510 3 1 5882.4
2001 Q1 660 0 0 0.0
2000 Q4 620 0 0 0.0
2000 Q3 880 0 0 0.0
2000 Q2 560 0 0 0.0
2000 Q1 660 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2025 · 1 incident

April 11, 2025 ID · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Idaho Materials & Construction · Struck against a moving object

Employee was operating a loader all day and there were some pot holes that they encountered causing bouncing and a sore back.

2021 · 1 incident

July 12, 2021 ID · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Idaho Materials & Construction · Fall to the walkway or working surface

While attempting to remove a race from the tail pulley shaft on the feed belt by standing on a pry bar to lift the tail pully from the frame, EE's foot slipped off the bar causing EE to fall forward to the ground and landing on left elbow. EE said that EE dislocated a shoulder when elbow/forearm contacted the ground causing pain in shoulder.

2002 · 1 incident

March 12, 2002 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mountain Home Redi-Mix Inc · Struck by falling object

REMOVING DOOR ON CRUSHER SCREEN BOX. DOOR FELL AND STRUCK THUMB ON RT. HAND. PLACED ON LIGHT DUTY, RETURNED TO PART TIME WORK.