Clapper Quarry #2 has $16K 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
1
Years on record
2025
Latest incident
Jun 2025
Compliance record
MSHA citations since 2004
104
citations
33
significant & substantial
$16,044
proposed penalties
$16,044
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: 706 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Clapper Quarry #2 has $16K 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.
$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
104 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-17.
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.
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: 2024-06-04
36%
of limit-tested samples over the exposure limit
17
samples
14
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz155 over
Respirable dust, <.1mg2
Show the individual readings (17)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-04-17
Quartz, respirable, >1% Qtz
0.74
0.41
1.80
Utility Man
2018-04-10
Quartz, respirable, >1% Qtz
1.31
0.95
1.38
Stone Polisher/Cutter
2018-04-10
Quartz, respirable, >1% Qtz
0.63
0.49
1.29
Stone Polisher/Cutter
2010-05-27
Quartz, respirable, >1% Qtz
0.6
0.45
1.33
Supervisor, Co. Official
2010-05-27
Quartz, respirable, >1% Qtz
1.74
0.49
3.55
Stone Polisher/Cutter
2024-06-04
Quartz, respirable, >1% Qtz
0.18
0.52
0.35
Utility Man
2024-04-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-04-17
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2024-04-17
Quartz, respirable, >1% Qtz
0.16
0.57
0.28
Stone Polisher/Cutter
2020-12-02
Quartz, respirable, >1% Qtz
0.35
0.61
0.57
Stone Polisher/Cutter
2020-12-02
Quartz, respirable, >1% Qtz
0.58
Backhoe Operator
2018-06-14
Quartz, respirable, >1% Qtz
0.41
0.43
0.95
Stone Polisher/Cutter
2018-06-14
Quartz, respirable, >1% Qtz
0.2
0.37
0.54
Stone Polisher/Cutter
2018-04-10
Quartz, respirable, >1% Qtz
0.18
0.27
0.67
Front-end Loader Operator
2010-07-15
Quartz, respirable, >1% Qtz
0.2
0.58
0.34
Supervisor, Co. Official
2010-07-15
Quartz, respirable, >1% Qtz
0.22
0.45
0.49
Stone Polisher/Cutter
2010-05-27
Quartz, respirable, >1% Qtz
0.19
0.38
0.50
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.
Clapper Quarry #2 recorded 6.62 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.
6.62
total case rate
6.62
days-away rate
0.000
fatality rate
Above 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 Pennsylvania, metal and nonmetal mining averaged 2.07 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 *
6.62
6.62
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
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2018 *
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.
Ownership history
Tammy & Norm Norton (Norm Norton Stone)2004 to 2005
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
18
2025
17
2024
16
2023
18
2022
18
2021
23
2020
24
2019
18
2018
17
2017
17
2016
12
2015
7
2014
4
2013
6
2012
9
2011
10
2010
9
2009
13
2008
17
2007
16
2006
27
2005
16
2004
6
Source: MSHA quarterly employment and production, updated weekly.
Clapper Quarry #2 sits in Susquehanna County, Pennsylvania, where the Census mining category is 3.2% 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.
Susquehanna County, Pennsylvania · Population 38,349
3.2%
Mining share of county employment
$66,930
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
11,351
0
0
0.0
2026 Q1
926
2
0
2159.8
2025 Q4
7,053
0
0
0.0
2025 Q3
9,049
0
0
0.0
2025 Q2
12,706
1
1
78.7
2025 Q1
1,414
7
3
4950.5
2024 Q4
10,665
0
0
0.0
2024 Q3
10,918
0
0
0.0
Show 81 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
13,041
9
4
690.1
2024 Q1
798
0
0
0.0
2023 Q4
8,594
0
0
0.0
2023 Q3
11,437
0
0
0.0
2023 Q2
11,168
0
0
0.0
2023 Q1
827
0
0
0.0
2022 Q4
4,105
6
1
1461.6
2022 Q3
11,362
0
0
0.0
2022 Q2
10,361
4
1
386.1
2022 Q1
2,225
0
0
0.0
2021 Q4
12,035
0
0
0.0
2021 Q3
12,143
0
0
0.0
2021 Q2
12,822
0
0
0.0
2021 Q1
2,864
0
0
0.0
2020 Q4
9,097
3
1
329.8
2020 Q3
12,572
3
1
238.6
2020 Q2
14,062
0
0
0.0
2020 Q1
1,628
0
0
0.0
2019 Q4
9,404
0
0
0.0
2019 Q3
13,182
5
2
379.3
2019 Q2
12,117
0
0
0.0
2019 Q1
909
0
0
0.0
2018 Q4
7,154
0
0
0.0
2018 Q3
11,771
0
0
0.0
2018 Q2
9,389
6
0
639.0
2018 Q1
649
0
0
0.0
2017 Q4
5,917
0
0
0.0
2017 Q3
11,010
5
2
454.1
2017 Q2
9,477
0
0
0.0
2017 Q1
2,455
3
1
1222.0
2016 Q4
5,717
0
0
0.0
2016 Q3
8,642
4
2
462.9
2016 Q2
5,081
0
0
0.0
2016 Q1
4,127
2
1
484.6
2015 Q4
4,494
0
0
0.0
2015 Q3
5,040
4
2
793.7
2015 Q2
2,643
0
0
0.0
2015 Q1
214
0
0
0.0
2014 Q4
2,073
0
0
0.0
2014 Q3
1,834
0
0
0.0
2014 Q2
1,632
3
2
1838.2
2014 Q1
0
0
0
2013 Q4
2,460
0
0
0.0
2013 Q3
1,528
0
0
0.0
2013 Q2
1,959
2
1
1020.9
2013 Q1
411
0
0
0.0
2012 Q4
2,137
3
0
1403.8
2012 Q3
7,064
0
0
0.0
2012 Q2
8,418
0
0
0.0
2012 Q1
1,393
0
0
0.0
2011 Q4
3,608
3
0
831.5
2011 Q3
10,823
0
0
0.0
2011 Q2
5,666
4
1
706.0
2011 Q1
987
0
0
0.0
2010 Q4
2,758
0
0
0.0
2010 Q3
4,089
0
0
0.0
2010 Q2
5,489
7
2
1275.3
2010 Q1
242
0
0
0.0
2009 Q4
2,538
0
0
0.0
2009 Q3
4,902
0
0
0.0
2009 Q2
4,578
0
0
0.0
2009 Q1
774
0
0
0.0
2008 Q4
4,343
2
1
460.5
2008 Q3
7,437
0
0
0.0
2008 Q2
4,718
0
0
0.0
2008 Q1
4,120
1
0
242.7
2007 Q4
5,505
0
0
0.0
2007 Q3
8,080
0
0
0.0
2007 Q2
7,376
0
0
0.0
2007 Q1
4,463
0
0
0.0
2006 Q4
5,922
0
0
0.0
2006 Q3
12,042
5
0
415.2
2006 Q2
12,180
0
0
0.0
2006 Q1
5,648
0
0
0.0
2005 Q4
7,283
0
0
0.0
2005 Q3
9,121
0
0
0.0
2005 Q2
5,410
3
0
554.5
2005 Q1
0
0
0
2004 Q4
962
0
0
0.0
2004 Q3
1,440
0
0
0.0
2004 Q2
2,197
6
4
2731.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2025 · 1 incident
June 18, 2025PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE