Rocky Mountain Quartzite Quarry has $16K in proposed MSHA penalties and $151 outstanding across 6 contested dockets, plus health sampling and the full incident record.
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Fatalities
1
Total incidents
28
Years on record
1989–2008
Latest incident
Jul 2008
Compliance record
MSHA citations since 2000
72
citations
17
significant & substantial
$16,188
proposed penalties
$15,037
paid to date
93% of proposed penalties paid to date, a $1,151 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: 970 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: 2020-10-19.
On record since 2020.
Source: MSHA imminent-danger order records, updated weekly.
Rocky Mountain Quartzite Quarry has $16K in proposed MSHA penalties and $151 outstanding across 6 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.
$16K
proposed penalties
$15K
current assessed
$15K
paid to date
$151
outstanding
68 assessments are final orders; 6 contested dockets.
Of $30K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2026-06-17.
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.
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.
1citations taken to the federal commission · 1% of citations on record
Settled
1 · 100%
100%
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 1 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$2K proposed, $2K 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 2008-12-09.
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.
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: 2020-06-23, 6 years ago
33%
of limit-tested samples over the exposure limit
17
samples
12
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz124 over
Respirable dust, <.1mg5
Show the individual readings (17)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2010-07-20
Quartz, respirable, >1% Qtz
0.54
0.51
1.06
Stone Polisher/Cutter
2003-06-18
Quartz, respirable, >1% Qtz
0.36
0.22
1.64
Stone Polisher/Cutter
2002-05-14
Quartz, respirable, >1% Qtz
0.22
0.19
1.16
Stone Polisher/Cutter
2002-05-14
Quartz, respirable, >1% Qtz
0.25
0.16
1.56
Stone Polisher/Cutter
2020-06-23
Quartz, respirable, >1% Qtz
0.13
0.16
0.81
Laborer, Bullgang
2020-06-23
Quartz, respirable, >1% Qtz
0.24
0.56
0.43
Laborer, Bullgang
2015-04-28
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2015-04-28
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2010-07-20
Quartz, respirable, >1% Qtz
0.21
0.44
0.48
Stone Polisher/Cutter
2010-07-20
Quartz, respirable, >1% Qtz
0.26
0.62
0.42
Stone Polisher/Cutter
2010-07-20
Quartz, respirable, >1% Qtz
0.14
0.46
0.30
Stone Polisher/Cutter
2004-07-08
Quartz, respirable, >1% Qtz
0.12
0.17
0.71
Stone Polisher/Cutter
2003-06-18
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2003-06-18
Quartz, respirable, >1% Qtz
0.37
0.41
0.90
Stone Polisher/Cutter
2002-05-14
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2002-05-14
Quartz, respirable, >1% Qtz
0.29
1.52
0.19
Stone Polisher/Cutter
2002-05-14
Respirable dust, <.1mg
0
Stone Polisher/Cutter
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.
Rocky Mountain Quartzite Quarry 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.
Year
total case rate
days-away
fatal
2025 *
0.00
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
2019 *
0.00
0.00
0.000
2018 *
0.00
0.00
0.000
2017 *
0.00
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
11
2025
15
2024
20
2023
21
2022
24
2021
32
2020
14
2019
27
2018
37
2017
40
2016
33
2015
37
2014
32
2013
22
2012
24
2011
19
2010
16
2009
22
2008
9
2007
7
2006
7
2005
7
2004
7
2003
7
2002
7
2001
7
2000
7
Source: MSHA quarterly employment and production, updated weekly.
Rocky Mountain Quartzite Quarry sits in Cassia County, Idaho, where the Census mining category is 0.5% 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.
Cassia County, Idaho · Population 25,165
0.5%
Mining share of county employment
$67,042
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
5,880
1
0
170.1
2026 Q1
0
0
0
2025 Q4
280
0
0
0.0
2025 Q3
12,380
0
0
0.0
2025 Q2
9,640
3
0
311.2
2025 Q1
0
0
0
2024 Q4
960
0
0
0.0
2024 Q3
19,480
5
2
256.7
Show 96 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
4,960
0
0
0.0
2024 Q1
0
0
0
2023 Q4
3,840
0
0
0.0
2023 Q3
16,800
0
0
0.0
2023 Q2
400
0
0
0.0
2023 Q1
0
0
0
2022 Q4
2,260
0
0
0.0
2022 Q3
22,880
3
0
131.1
2022 Q2
12,800
0
0
0.0
2022 Q1
0
0
0
2021 Q4
10,320
0
0
0.0
2021 Q3
19,680
0
0
0.0
2021 Q2
16,800
0
0
0.0
2021 Q1
0
0
0
2020 Q4
7,200
5
4
694.4
2020 Q3
7,200
0
0
0.0
2020 Q2
1,600
1
0
625.0
2020 Q1
0
0
0
2019 Q4
512
0
0
0.0
2019 Q3
26,000
0
0
0.0
2019 Q2
18,000
3
1
166.7
2019 Q1
0
0
0
2018 Q4
5,400
0
0
0.0
2018 Q3
23,400
0
0
0.0
2018 Q2
23,200
2
0
86.2
2018 Q1
0
0
0
2017 Q4
4,240
0
0
0.0
2017 Q3
27,560
0
0
0.0
2017 Q2
14,840
0
0
0.0
2017 Q1
0
0
0
2016 Q3
26,000
0
0
0.0
2016 Q2
16,640
2
0
120.2
2016 Q1
0
0
0
2015 Q4
5,880
0
0
0.0
2015 Q3
32,340
0
0
0.0
2015 Q2
20,000
1
0
50.0
2015 Q1
0
0
0
2014 Q4
6,880
0
0
0.0
2014 Q3
20,720
0
0
0.0
2014 Q2
21,840
2
1
91.6
2014 Q1
0
0
0
2013 Q4
7,680
0
0
0.0
2013 Q3
20,480
0
0
0.0
2013 Q2
11,360
0
0
0.0
2013 Q1
0
0
0
2012 Q4
5,120
0
0
0.0
2012 Q3
16,640
0
0
0.0
2012 Q2
20,480
0
0
0.0
2012 Q1
0
0
0
2011 Q4
10,080
0
0
0.0
2011 Q3
12,480
0
0
0.0
2011 Q2
3,840
1
0
260.4
2011 Q1
0
0
0
2010 Q4
280
0
0
0.0
2010 Q3
15,600
1
1
64.1
2010 Q2
4,800
0
0
0.0
2010 Q1
0
0
0
2009 Q4
3,480
0
0
0.0
2009 Q3
16,240
1
0
61.6
2009 Q2
4,640
0
0
0.0
2009 Q1
0
0
0
2008 Q4
0
3
1
2008 Q3
11,500
2
0
173.9
2008 Q2
5,480
0
0
0.0
2007 Q4
0
0
0
2007 Q3
11,500
2
1
173.9
2007 Q2
5,480
1
0
182.5
2007 Q1
0
0
0
2006 Q4
0
0
0
2006 Q3
11,500
2
0
173.9
2006 Q2
5,480
2
1
365.0
2006 Q1
0
0
0
2005 Q4
0
0
0
2005 Q3
11,500
0
0
0.0
2005 Q2
5,480
0
0
0.0
2005 Q1
0
0
0
2004 Q4
0
0
0
2004 Q3
11,500
0
0
0.0
2004 Q2
5,480
0
0
0.0
2004 Q1
0
0
0
2003 Q4
0
0
0
2003 Q3
11,500
0
0
0.0
2003 Q2
5,480
3
0
547.4
2003 Q1
0
0
0
2002 Q4
0
0
0
2002 Q3
11,500
0
0
0.0
2002 Q2
5,480
5
3
912.4
2002 Q1
0
0
0
2001 Q4
0
0
0
2001 Q3
11,500
0
0
0.0
2001 Q2
5,480
0
0
0.0
2001 Q1
0
0
0
2000 Q4
0
3
0
2000 Q3
11,500
1
0
87.0
2000 Q2
5,480
0
0
0.0
2000 Q1
0
0
0
Fatalities at this mine
1 recorded
August 9, 2000ID · Metal/Non-Metalforklift operatorFatality · POWERED HAULAGE
MAN WAS DRIVING 922B LOADER DOWN A ROAD WITH A STEEP GRADE. FOR UNKNOWN REASON, LOST CONTROL AND THE LOADER TURNED OVER AND THE RAPS SAFETY CAB FAILED AND COLLAPSED CAUSING FATALITY.
EE climbed up on to an excavator track and grabbed on to the door handle. The door was not latched, it swung open. As a result he fell to the ground landing on his right arm and shoulder, resulting in a break to his arm.
2006 · 1 incident
July 13, 2006ID · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerHANDLING OF MATERIALS
EMPLOYEE ATTEMPTED TO LOAD EQUIPMENT ON DETACHABLE GOOSE NECK LOW BED TRAILER.EQUIPMENT (A CAT EXCAVATOR) FELL OF STEEP REAR DECK OF DETACHABLE TRAILER.