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: 561 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Hammill Pit has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
33 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2018-12-06.
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: 2025-04-30
0%
of limit-tested samples over the exposure limit
10
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg8
Quartz, respirable, >1% Qtz1
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (10)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-04-30
Respirable dust, <.1mg
0
Bulldozer Operator
2025-04-30
Respirable dust, <.1mg
0
Truck Driver
2016-06-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-06-07
Respirable dust, <.1mg
0
Scraper Operator
2016-06-07
Quartz, respirable, >1% Qtz
0.46
2.03
0.23
Bulldozer Operator
2012-03-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-10-26
Respirable dust, <.1mg
0
Shuttle Car Operator (diesel)
2005-10-26
Respirable dust, <.1mg
0
Bulldozer Operator
2001-05-02
Respirable dust, <.1mg
0
Backhoe Operator
2001-05-02
Unlisted Particulate, respirable, <1% Qtz
0.21
Front-end Loader 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
1
2025
4
2024
3
2023
3
2022
2
2021
4
2020
4
2019
3
2018
3
2017
3
2016
4
2015
4
2014
4
2013
3
2012
3
2011
3
2010
4
2009
3
2008
4
2007
4
2006
5
2005
4
2004
4
2003
4
2002
4
2001
4
2000
4
Source: MSHA quarterly employment and production, updated weekly.
Hammill Pit sits in Cabarrus County, North Carolina, 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.
Cabarrus County, North Carolina · Population 231,262
0.2%
Mining share of county employment
$86,084
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
108
0
0
0.0
2026 Q1
269
0
0
0.0
2025 Q4
400
0
0
0.0
2025 Q3
1,244
0
0
0.0
2025 Q2
873
0
0
0.0
2025 Q1
1,111
0
0
0.0
2024 Q4
184
0
0
0.0
2024 Q3
583
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
893
0
0
0.0
2024 Q1
1,208
0
0
0.0
2023 Q4
595
0
0
0.0
2023 Q3
641
0
0
0.0
2023 Q2
463
0
0
0.0
2023 Q1
1,399
0
0
0.0
2022 Q4
281
0
0
0.0
2022 Q3
492
0
0
0.0
2022 Q2
403
0
0
0.0
2022 Q1
767
0
0
0.0
2021 Q4
2,199
0
0
0.0
2021 Q3
1,492
0
0
0.0
2021 Q2
2,011
0
0
0.0
2021 Q1
1,152
0
0
0.0
2020 Q4
1,797
0
0
0.0
2020 Q3
1,696
0
0
0.0
2020 Q2
1,343
0
0
0.0
2020 Q1
1,176
0
0
0.0
2019 Q4
1,773
0
0
0.0
2019 Q3
1,859
0
0
0.0
2019 Q2
1,693
0
0
0.0
2019 Q1
1,100
0
0
0.0
2018 Q4
1,485
1
0
673.4
2018 Q3
1,529
0
0
0.0
2018 Q2
1,096
0
0
0.0
2018 Q1
623
0
0
0.0
2017 Q4
1,353
0
0
0.0
2017 Q3
1,207
0
0
0.0
2017 Q2
2,132
0
0
0.0
2017 Q1
811
0
0
0.0
2016 Q4
2,204
0
0
0.0
2016 Q3
2,308
0
0
0.0
2016 Q2
1,918
2
0
1042.8
2016 Q1
866
0
0
0.0
2015 Q4
1,232
1
1
811.7
2015 Q3
2,232
0
0
0.0
2015 Q2
1,477
1
0
677.0
2015 Q1
1,494
0
0
0.0
2014 Q4
1,664
0
0
0.0
2014 Q3
1,479
1
0
676.1
2014 Q2
1,915
0
0
0.0
2014 Q1
1,115
0
0
0.0
2013 Q4
938
0
0
0.0
2013 Q3
1,420
2
1
1408.5
2013 Q2
1,405
0
0
0.0
2013 Q1
708
0
0
0.0
2012 Q4
1,499
0
0
0.0
2012 Q3
1,733
2
0
1154.1
2012 Q2
1,481
0
0
0.0
2012 Q1
551
0
0
0.0
2011 Q4
686
0
0
0.0
2011 Q3
1,425
0
0
0.0
2011 Q2
1,032
0
0
0.0
2011 Q1
664
1
0
1506.0
2010 Q4
1,103
0
0
0.0
2010 Q3
2,266
0
0
0.0
2010 Q2
1,812
0
0
0.0
2010 Q1
491
1
0
2036.7
2009 Q4
384
0
0
0.0
2009 Q3
1,589
2
1
1258.7
2009 Q2
954
0
0
0.0
2009 Q1
359
2
0
5571.0
2008 Q4
1,944
0
0
0.0
2008 Q3
1,926
0
0
0.0
2008 Q2
1,733
1
0
577.0
2008 Q1
1,054
0
0
0.0
2007 Q4
1,589
0
0
0.0
2007 Q3
2,935
3
0
1022.1
2007 Q2
2,532
0
0
0.0
2007 Q1
1,056
0
0
0.0
2006 Q4
2,345
0
0
0.0
2006 Q3
2,552
3
0
1175.5
2006 Q2
2,799
0
0
0.0
2006 Q1
2,571
0
0
0.0
2005 Q4
1,816
2
0
1101.3
2005 Q3
2,034
0
0
0.0
2005 Q2
2,774
0
0
0.0
2005 Q1
515
0
0
0.0
2004 Q4
2,063
0
0
0.0
2004 Q3
2,301
1
0
434.6
2004 Q2
2,342
0
0
0.0
2004 Q1
1,087
0
0
0.0
2003 Q4
2,316
0
0
0.0
2003 Q3
2,174
0
0
0.0
2003 Q2
2,131
0
0
0.0
2003 Q1
1,169
0
0
0.0
2002 Q4
1,643
0
0
0.0
2002 Q3
2,179
0
0
0.0
2002 Q2
2,498
0
0
0.0
2002 Q1
904
0
0
0.0
2001 Q4
2,547
0
0
0.0
2001 Q3
2,045
0
0
0.0
2001 Q2
1,933
0
0
0.0
2001 Q1
1,233
0
0
0.0
2000 Q4
2,441
1
0
409.7
2000 Q3
2,322
0
0
0.0
2000 Q2
2,100
0
0
0.0
2000 Q1
1,180
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2016 · 1 incident
June 13, 2016NC · Metal/Non-Metaloutside foreman, leadmanDISORDERS (REPEATED TRAUMA)
Employee had climbed onto back of bulldozer while assisting with repairs and fell approximately 4 feet onto ripper attachment. Employee had 3 cracked ribs and bruised lung. 2 weeks rest required by doctor.
1988 · 1 incident
September 29, 1988NC · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorPOWERED HAULAGE