Treasure Valley Portable #1 has $6K 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
2011–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2000
49
citations
10
significant & substantial
$5,509
proposed penalties
$5,509
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 511 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 #1 has $6K 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
49 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-24.
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.
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: 2026-03-26
0%
of limit-tested samples over the exposure limit
14
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg10
Quartz, respirable, >1% Qtz3
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (14)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-03-26
Quartz, respirable, >1% Qtz
0.94
1.06
0.89
Cleanup Man
2026-03-26
Respirable dust, <.1mg
0
Crusher Oper/Worker
2026-03-26
Quartz, respirable, >1% Qtz
0.27
1.09
0.25
Bulldozer Operator
2020-09-16
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-09-16
Respirable dust, <.1mg
0
Laborer, Bullgang
2016-03-10
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-03-10
Respirable dust, <.1mg
0
Crusher Oper/Worker
2013-09-25
Unlisted Particulate, respirable, <1% Qtz
0.14
Front-end Loader Operator
2010-03-09
Respirable dust, <.1mg
0
Crusher Oper/Worker
2010-03-09
Quartz, respirable, >1% Qtz
0.28
1.59
0.18
Front-end Loader Operator
2004-04-22
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-04-22
Respirable dust, <.1mg
0
Supervisor, Co. Official
2001-02-14
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-02-14
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.
Treasure Valley Portable #1 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
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
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 Idaho, metal and nonmetal mining averaged 2.26 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.
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
38
2025
27
2024
16
2023
9
2022
7
2021
8
2020
7
2019
6
2018
8
2017
5
2016
7
2015
3
2014
5
2013
2
2012
0
2011
2
2010
2
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.
Treasure Valley Portable #1 sits in Canyon County, Idaho, where the Census mining category is 0.2% 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.
Canyon County, Idaho · Population 242,405
0.2%
Mining share of county employment
$72,355
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
6,132
0
0
0.0
2026 Q1
5,507
1
0
181.6
2025 Q4
8,328
0
0
0.0
2025 Q3
8,168
0
0
0.0
2025 Q2
9,438
0
0
0.0
2025 Q1
3,814
0
0
0.0
2024 Q4
6,021
0
0
0.0
2024 Q3
2,835
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
2,968
0
0
0.0
2024 Q1
2,698
0
0
0.0
2023 Q4
3,308
0
0
0.0
2023 Q3
1,290
0
0
0.0
2023 Q2
1,786
0
0
0.0
2023 Q1
1,769
0
0
0.0
2022 Q4
2,050
0
0
0.0
2022 Q3
2,259
0
0
0.0
2022 Q2
2,064
0
0
0.0
2022 Q1
694
0
0
0.0
2021 Q4
2,180
0
0
0.0
2021 Q3
2,145
0
0
0.0
2021 Q2
2,348
1
0
425.9
2021 Q1
492
0
0
0.0
2020 Q4
1,626
0
0
0.0
2020 Q3
867
0
0
0.0
2020 Q2
1,759
0
0
0.0
2020 Q1
1,002
0
0
0.0
2019 Q4
1,456
0
0
0.0
2019 Q3
1,248
0
0
0.0
2019 Q2
166
0
0
0.0
2019 Q1
15
0
0
0.0
2018 Q4
203
0
0
0.0
2018 Q3
1,522
0
0
0.0
2018 Q2
1,649
0
0
0.0
2018 Q1
1,354
3
2
2215.7
2017 Q4
102
0
0
0.0
2017 Q3
643
0
0
0.0
2017 Q2
2,099
3
0
1429.3
2017 Q1
746
0
0
0.0
2016 Q4
1,095
0
0
0.0
2016 Q3
1,371
0
0
0.0
2016 Q2
1,391
0
0
0.0
2016 Q1
890
2
0
2247.2
2015 Q4
386
0
0
0.0
2015 Q3
3,193
0
0
0.0
2015 Q2
1,121
0
0
0.0
2015 Q1
21
0
0
0.0
2014 Q4
600
0
0
0.0
2014 Q3
1,748
0
0
0.0
2014 Q2
3,673
0
0
0.0
2014 Q1
1,679
0
0
0.0
2013 Q4
1,901
0
0
0.0
2013 Q3
873
0
0
0.0
2013 Q2
486
0
0
0.0
2013 Q1
0
0
0
2012 Q4
0
0
0
2012 Q3
0
0
0
2012 Q2
0
0
0
2012 Q1
0
0
0
2011 Q4
1,035
2
0
1932.4
2011 Q3
1,353
0
0
0.0
2011 Q2
647
1
0
1545.6
2011 Q1
0
0
0
2010 Q4
641
0
0
0.0
2010 Q3
347
0
0
0.0
2010 Q2
771
0
0
0.0
2010 Q1
439
0
0
0.0
2009 Q4
7
0
0
0.0
2009 Q3
518
0
0
0.0
2009 Q2
809
2
0
2472.2
2009 Q1
0
0
0
2008 Q4
106
0
0
0.0
2008 Q3
274
0
0
0.0
2008 Q2
922
1
0
1084.6
2008 Q1
708
0
0
0.0
2007 Q4
901
0
0
0.0
2007 Q3
1,295
0
0
0.0
2007 Q2
1,433
0
0
0.0
2007 Q1
2,034
0
0
0.0
2006 Q4
1,327
1
0
753.6
2006 Q3
1,329
3
0
2257.3
2006 Q2
851
0
0
0.0
2006 Q1
1,557
0
0
0.0
2005 Q4
828
1
0
1207.7
2005 Q3
1,113
4
0
3593.9
2005 Q2
1,051
0
0
0.0
2005 Q1
1,091
0
0
0.0
2004 Q4
903
2
0
2214.8
2004 Q3
1,045
0
0
0.0
2004 Q2
1,044
2
1
1915.7
2004 Q1
1,175
0
0
0.0
2003 Q4
711
0
0
0.0
2003 Q3
1,091
2
2
1833.2
2003 Q2
1,034
0
0
0.0
2003 Q1
866
1
0
1154.7
2002 Q4
706
0
0
0.0
2002 Q3
820
0
0
0.0
2002 Q2
520
0
0
0.0
2002 Q1
640
0
0
0.0
2001 Q4
722
1
0
1385.0
2001 Q3
675
0
0
0.0
2001 Q2
480
4
2
8333.3
2001 Q1
480
2
1
4166.7
2000 Q4
608
0
0
0.0
2000 Q3
460
0
0
0.0
2000 Q2
450
8
1
17777.8
2000 Q1
710
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2026 · 1 incident
June 30, 2026ID · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerDISORDERS (REPEATED TRAUMA)