Silverdale Quality Stone has $5K 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
10
Years on record
1983–2005
Latest incident
Nov 2005
Compliance record
MSHA citations since 2004
36
citations
3
significant & substantial
$4,688
proposed penalties
$4,688
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
37
inspections on record
342
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: 342 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Silverdale Quality Stone has $5K 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
35 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-02-26.
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.
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: 2025-07-01
0%
of limit-tested samples over the exposure limit
6
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg5
Quartz, respirable, >1% Qtz1
Show the individual readings (6)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-07-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-07-01
Respirable dust, <.1mg
0
Cutting Mach Operator
2022-05-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-08-28
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-10-28
Respirable dust, <.1mg
0
Supervisor, Co. Official
2009-10-28
Quartz, respirable, >1% Qtz
0.27
2.13
0.13
Laborer, Bullgang
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
4
2025
3
2024
3
2023
3
2022
3
2021
4
2020
4
2019
3
2018
0
2017
3
2016
3
2015
4
2014
3
2013
3
2012
4
2011
5
2010
4
2009
4
2008
3
2007
3
2006
3
2005
3
2004
3
2003
13
Source: MSHA quarterly employment and production, updated weekly.
Silverdale Quality Stone sits in Cowley County, Kansas, where the Census mining category is 0.7% 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.
Cowley County, Kansas · Population 34,487
0.7%
Mining share of county employment
$58,263
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
2,315
0
0
0.0
2026 Q1
2,114
1
0
473.0
2025 Q4
1,625
0
0
0.0
2025 Q3
1,910
0
0
0.0
2025 Q2
1,632
1
0
612.7
2025 Q1
1,781
5
1
2807.4
2024 Q4
1,589
0
0
0.0
2024 Q3
1,929
0
0
0.0
Show 83 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,772
0
0
0.0
2024 Q1
1,688
0
0
0.0
2023 Q4
1,512
0
0
0.0
2023 Q3
1,843
0
0
0.0
2023 Q2
1,657
3
0
1810.5
2023 Q1
1,809
0
0
0.0
2022 Q4
1,751
1
0
571.1
2022 Q3
1,977
0
0
0.0
2022 Q2
1,871
2
0
1068.9
2022 Q1
1,575
0
0
0.0
2021 Q4
1,959
3
0
1531.4
2021 Q3
2,685
0
0
0.0
2021 Q2
2,422
0
0
0.0
2021 Q1
1,494
1
0
669.3
2020 Q4
2,478
3
0
1210.7
2020 Q3
2,617
5
1
1910.6
2020 Q2
2,088
0
0
0.0
2020 Q1
1,474
0
0
0.0
2019 Q4
1,468
0
0
0.0
2019 Q3
1,386
2
0
1443.0
2019 Q2
860
0
0
0.0
2019 Q1
100
0
0
0.0
2018 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
87
0
0
0.0
2017 Q3
121
0
0
0.0
2017 Q2
173
0
0
0.0
2017 Q1
151
0
0
0.0
2016 Q4
105
0
0
0.0
2016 Q3
32
0
0
0.0
2016 Q2
57
0
0
0.0
2016 Q1
253
0
0
0.0
2015 Q4
105
0
0
0.0
2015 Q3
215
0
0
0.0
2015 Q2
255
0
0
0.0
2015 Q1
184
2
0
10869.6
2014 Q4
80
0
0
0.0
2014 Q3
174
0
0
0.0
2014 Q2
32
0
0
0.0
2014 Q1
93
0
0
0.0
2013 Q4
377
0
0
0.0
2013 Q3
138
0
0
0.0
2013 Q2
179
0
0
0.0
2013 Q1
129
0
0
0.0
2012 Q4
219
0
0
0.0
2012 Q3
396
0
0
0.0
2012 Q2
168
0
0
0.0
2012 Q1
255
0
0
0.0
2011 Q4
333
0
0
0.0
2011 Q3
215
0
0
0.0
2011 Q2
646
0
0
0.0
2011 Q1
327
1
0
3058.1
2010 Q4
254
0
0
0.0
2010 Q3
503
0
0
0.0
2010 Q2
279
0
0
0.0
2010 Q1
102
0
0
0.0
2009 Q4
209
0
0
0.0
2009 Q3
65
0
0
0.0
2009 Q2
49
0
0
0.0
2009 Q1
286
0
0
0.0
2008 Q4
100
0
0
0.0
2008 Q3
140
0
0
0.0
2008 Q2
287
0
0
0.0
2008 Q1
253
0
0
0.0
2007 Q4
212
0
0
0.0
2007 Q3
121
0
0
0.0
2007 Q2
239
0
0
0.0
2007 Q1
143
0
0
0.0
2006 Q4
251
0
0
0.0
2006 Q3
166
0
0
0.0
2006 Q2
67
0
0
0.0
2006 Q1
42
0
0
0.0
2005 Q4
341
3
0
8797.7
2005 Q3
132
0
0
0.0
2005 Q2
60
0
0
0.0
2005 Q1
102
0
0
0.0
2004 Q4
68
0
0
0.0
2004 Q3
383
2
0
5221.9
2004 Q2
121
0
0
0.0
2004 Q1
264
0
0
0.0
2003 Q4
5,868
0
0
0.0
2003 Q3
5,900
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
10 on file
2005 · 1 incident
November 8, 2005KS · Metal/Non-Metalwelder (shop)RESPIRATORY CONDITIONS (TOXIC AGENTS)
H J Born Stone Inc · Inhalation of radiations, caustics, toxic and noxious substances
Miner was affected by smoke while removing liners from finish mill. Miner was taken under his own power to the hospital where he was treated with fluids. i.v.
2003 · 1 incident
July 8, 2003KS · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
THERE WERE NO WITNESSES TO THE INJURY. THE EE SAYS THAT HE WAS LIFTING A LARGE STONE. HE CLAIMED TO THE INSURANCE PEOPLE THAT HE HAD DONE SO FOR SEVERAL MONTHS BUT HE HAD ONLY BEEN EMPLOYED ABOUT 5 WKS. ALL OF OUR LARGE STONES ARE LIFTED BY CRANE OR FORKLIFT. WE THINK THIS IS TO BE A POSSIBLE HOME INJURY.
1989 · 1 incident
February 20, 1989KS · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
ATTCH;WORKING AT QUARRY.I.NAME DRIVING HIGH-LOADER & EMPL STOOD IN TRUCK TRAILER ON TOP OF ROCK BEING LOADED.FREEZING RAIN MADE ROCK SLICK.RIGHT FOOT SLIPPED FORWARD & DOWN ALONG SLOPE OF LOAD .EMPL TWISTED TO LEFT AND LANDED ON BUTTOCKS.FELT PULLING SENSATION IN CENTER OF LOW BACK...DURING COURSE OF NEXT WORK DAY,..BACK BECAME MORE PAINFUL.NEXT AM,..FELT SEVERE,PIERCING PAIN IN SA
1988 · 1 incident
January 15, 1988KS · Metal/Non-Metalshaft repair, skip tender, station tenderPOWERED HAULAGE
H J Born Stone Inc · Caught in, under or between a moving and a stationary object
EMPLOYEE WAS STANDING ON TOP OF FORKLIFT FIXING CHAIN OTHER EMPLOYEE RAIDED LIFT CATCHING EMPLOYEE S WRIST.
1985 · 2 incidents
August 16, 1985KS · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSTEPPING OR KNEELING ON OBJECT
EMPLOYEE WAS CARRYING PIECE OF STONE TO PUT ON TRUCK, STEPPED ON PIECE OF STONE LAYING ON GROUND AN TWISTED BACK.
August 2, 1985KS · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorPOWERED HAULAGE
H J Born Stone Inc · Caught in, under or between a moving and a stationary object
IN MOVING PIECE OF STONE SLAB ON CONVEYOR EMP WORKING WITH INJURED PUSHED PIECE OF STONE CATCHING INJURED FOREFINGER BETWEEN STONE AND MACHINE FOREFINGER FRACTURED
1984 · 1 incident
September 12, 1984KS · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
EMPLOYEE WAS STACKING STONE WHEN A PIECE BROKE IN THE MIKKLE AND FELL ON HIS RIGHT FOOT CAUSING SEVERE ECCHYMOSIS AND TORN LIGAMENT\S HIT BEHIND THE STEEL TOE OF HIS BOOTS.
1983 · 3 incidents
November 11, 1983KS · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
EMPLOYEE HAD PAINS IN HIS RIGHT GROIN FOR SEVERAL DAYS, HE TOOK OFF AT 3:00P.S.--NOVEMBER 11, 1983 AND WENT TO OUR COMPANY DOCTOR. THE DOCTOR RECOMMENDED HE HAVE SURGERY AS HE HAD A HERNIA WHI CH HE HAD--NOVEMBER 14, 1983.
August 19, 1983KS · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS