Rock Ridge Quarries has $29K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
27
Years on record
2002–2015
Latest incident
Aug 2015
Compliance record
MSHA citations since 2001
112
citations
35
significant & substantial
$28,818
proposed penalties
$28,818
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: 830 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Rock Ridge Quarries has $29K in proposed MSHA penalties and $0 outstanding across 1 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.
$29K
proposed penalties
$29K
current assessed
$29K
paid to date
$0
outstanding
109 assessments are final orders; 1 contested dockets.
Of $2K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2024-07-16.
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
Stood as issued
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2005-12-14.
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: 2026-02-23
25%
of limit-tested samples over the exposure limit
15
samples
4
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz41 over
Respirable dust, <.1mg11
Show the individual readings (15)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2009-09-22
Quartz, respirable, >1% Qtz
0.55
0.4
1.38
Front-end Loader Operator
2026-02-23
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2026-02-23
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2026-02-23
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2020-10-27
Quartz, respirable, >1% Qtz
0.14
0.46
0.30
Laborer, Bullgang
2020-10-27
Respirable dust, <.1mg
0
Laborer, Bullgang
2019-09-18
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-18
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2019-09-18
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2016-09-28
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-09-28
Respirable dust, <.1mg
0
Laborer, Bullgang
2016-09-28
Respirable dust, <.1mg
0
Laborer, Bullgang
2010-01-05
Quartz, respirable, >1% Qtz
0.2
0.72
0.28
Front-end Loader Operator
2009-09-22
Quartz, respirable, >1% Qtz
0.25
0.37
0.68
Rotary Bucket Ex. Operator
2009-09-22
Respirable dust, <.1mg
0
Jackhammer 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.
Rock Ridge Quarries recorded 0.00 reportable injury cases per 100 full-time workers in 2016.
Injury rate, 2016
ⓘ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 2.17 and the all-US-mining average was 2.59 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 2.24 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
2016 *
0.00
0.00
0.000
2015 *
8.23
8.23
0.000
2014 *
5.03
5.03
0.000
2013 *
16.83
11.22
0.000
2012 *
18.80
12.53
0.000
2011 *
19.68
14.76
0.000
2010 *
0.00
0.00
0.000
2009 *
4.84
4.84
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
8
2025
8
2024
8
2023
7
2022
5
2021
10
2020
7
2019
7
2018
5
2017
7
2016
14
2015
12
2014
21
2013
19
2012
19
2011
23
2010
22
2009
22
2008
34
2007
45
2006
55
2005
48
2004
13
2003
9
2002
20
2001
22
2000
21
Source: MSHA quarterly employment and production, updated weekly.
Rock Ridge Quarries sits in Yavapai County, Arizona, where the Census mining category is 1.2% 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.
Yavapai County, Arizona · Population 241,656
1.2%
Mining share of county employment
$66,106
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
4,160
0
0
0.0
2026 Q1
4,000
0
0
0.0
2025 Q4
4,000
0
0
0.0
2025 Q3
4,160
0
0
0.0
2025 Q2
4,160
0
0
0.0
2025 Q1
3,120
0
0
0.0
2024 Q4
3,840
0
0
0.0
2024 Q3
4,160
2
0
480.8
Show 97 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
3,640
0
0
0.0
2024 Q1
2,640
0
0
0.0
2023 Q4
3,520
0
0
0.0
2023 Q3
4,160
0
0
0.0
2023 Q2
4,160
0
0
0.0
2023 Q1
1,020
0
0
0.0
2022 Q4
2,080
0
0
0.0
2022 Q3
1,920
1
0
520.8
2022 Q2
2,605
0
0
0.0
2022 Q1
2,605
0
0
0.0
2021 Q4
4,040
0
0
0.0
2021 Q3
5,720
0
0
0.0
2021 Q2
4,040
0
0
0.0
2021 Q1
3,640
0
0
0.0
2020 Q4
2,890
5
1
1730.1
2020 Q3
2,730
0
0
0.0
2020 Q2
3,640
0
0
0.0
2020 Q1
3,520
0
0
0.0
2019 Q4
4,020
1
0
248.8
2019 Q3
4,100
2
0
487.8
2019 Q2
4,160
0
0
0.0
2019 Q1
2,100
0
0
0.0
2018 Q4
2,400
0
0
0.0
2018 Q3
2,600
0
0
0.0
2018 Q2
2,600
1
1
384.6
2018 Q1
2,080
0
0
0.0
2017 Q4
2,080
0
0
0.0
2017 Q3
2,080
0
0
0.0
2017 Q2
2,600
1
0
384.6
2017 Q1
6,832
0
0
0.0
2016 Q4
6,832
0
0
0.0
2016 Q3
7,960
1
0
125.6
2016 Q2
7,960
0
0
0.0
2016 Q1
6,848
1
0
146.0
2015 Q4
4,840
0
0
0.0
2015 Q3
6,450
0
0
0.0
2015 Q2
6,760
0
0
0.0
2015 Q1
6,240
0
0
0.0
2014 Q4
8,960
0
0
0.0
2014 Q3
12,480
0
0
0.0
2014 Q2
9,880
3
1
303.6
2014 Q1
8,448
0
0
0.0
2013 Q4
6,912
0
0
0.0
2013 Q3
10,920
0
0
0.0
2013 Q2
9,880
3
2
303.6
2013 Q1
7,936
0
0
0.0
2012 Q4
6,732
0
0
0.0
2012 Q3
7,290
0
0
0.0
2012 Q2
9,576
0
0
0.0
2012 Q1
8,320
1
0
120.2
2011 Q4
9,776
0
0
0.0
2011 Q3
10,488
1
0
95.3
2011 Q2
10,400
0
0
0.0
2011 Q1
9,984
0
0
0.0
2010 Q4
6,720
3
1
446.4
2010 Q3
11,088
0
0
0.0
2010 Q2
10,400
4
2
384.6
2010 Q1
12,480
6
3
480.8
2009 Q4
8,096
0
0
0.0
2009 Q3
15,600
1
1
64.1
2009 Q2
10,900
0
0
0.0
2009 Q1
6,700
0
0
0.0
2008 Q4
10,560
0
0
0.0
2008 Q3
20,280
0
0
0.0
2008 Q2
20,800
0
0
0.0
2008 Q1
17,680
1
0
56.6
2007 Q4
22,360
0
0
0.0
2007 Q3
22,620
2
0
88.4
2007 Q2
24,440
0
0
0.0
2007 Q1
22,880
5
2
218.5
2006 Q4
20,800
0
0
0.0
2006 Q3
31,720
4
2
126.1
2006 Q2
32,240
0
0
0.0
2006 Q1
29,640
0
0
0.0
2005 Q4
30,240
9
3
297.6
2005 Q3
26,000
13
4
500.0
2005 Q2
23,920
0
0
0.0
2005 Q1
19,240
0
0
0.0
2004 Q3
5,400
11
3
2037.0
2004 Q2
7,200
2
1
277.8
2004 Q1
5,760
12
5
2083.3
2003 Q4
7,680
5
1
651.0
2003 Q3
5,000
0
0
0.0
2003 Q2
6,035
0
0
0.0
2003 Q1
427
0
0
0.0
2002 Q4
8,944
3
1
335.4
2002 Q3
8,960
7
1
781.2
2002 Q2
8,900
0
0
0.0
2002 Q1
11,976
0
0
0.0
2001 Q4
13,476
0
0
0.0
2001 Q3
20,664
0
0
0.0
2001 Q2
11,532
1
0
86.7
2001 Q1
10,934
0
0
0.0
2000 Q4
11,587
0
0
0.0
2000 Q3
10,126
0
0
0.0
2000 Q2
10,800
0
0
0.0
2000 Q1
8,232
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
27 on file
2015 · 1 incident
August 26, 2015AZ · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerMACHINERY
March 4, 2014AZ · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerSLIP OR FALL OF PERSON
Employee was splitting stone. The big piece that he was working on broke and part of it hit his leg and bruised it. He did not report the injury until Monday, June 20th.
May 16, 2011AZ · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerHANDLING OF MATERIALS
Working with stone and hurt back. (220091800025-Existing injury for the employee. He was able to work until 6/26/09. He has a tailbone injury that is going to require some off work time)
2008 · 3 incidents
November 8, 2008AZ · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerHANDTOOLS (NONPOWERED)
This was not a reportable injury at the time, first aid only and no lost time. Several weeks later the employee reported pain in his wrist. The doctor said that there was a sliver of something in his wrist and they remove it on September 19th. He was not at work September 19th or 20th. He was released for work on the 21st.
April 2, 2007AZ · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerHANDLING OF MATERIALS
AFTER SPLITTING A PIECE OF FLAGSTONE, WORKER WAS LIFTING THE STONE OUT OF THE WAY USING ONE HAND WHEN THE STONE SLIPPED OUT OF HIS HAND AND FELL ON HIS LEFT MIDDLE FINGER.
WHILE SPLITTING FLAGSTONE, WORKER HIT HIS HAND WITH 3LB SLEDGE HAMMER.
September 26, 2002AZ · Metal/Non-Metalchute blaster, rockman, hang-up man, raise blasterHANDLING OF MATERIALS
3 Winns Quarry's · Caught in, under or between (Not Elsewhere Classified)
WORKER WAS LIFTING A PIECE OF FLAGSTONE OUT OF HIS WAY WITH ONE HAND WHEN THE STONE SLIPPED OUTOF HIS HAND AND PINCHED THE TIP OF LEFT MIDDLE FINGER OFF BETWEEN THE STONE AND HIS CUTTING WEDGE