Amrize Mattaponi Plant has $16K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Amrize Mattaponi Plant.
Fatalities
0
Total incidents
6
Years on record
1990–2022
Latest incident
Aug 2022
Compliance record
MSHA citations since 2000
72
citations
12
significant & substantial
$15,961
proposed penalties
$15,261
paid to date
96% of proposed penalties paid to date, a $700 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.
72 citations across 1,200 inspection hours.
Source: MSHA inspections data, updated weekly.
Amrize Mattaponi Plant has $16K in proposed MSHA penalties and $0 outstanding across 2 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
$0
outstanding
70 assessments are final orders; 2 contested dockets.
Of $2K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2026-02-10.
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.
2citations taken to the federal commission · 3% of citations on record
Settled
2 · 100%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
31%
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 2015-02-05.
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: 2026-06-02
0%
of limit-tested samples over the exposure limit
30
samples
5
limit-tested
Most sampled contaminants
Respirable dust, <.1mg24
Quartz, respirable, >1% Qtz3
Nuisance dust, respirable, <1% Qtz2
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (30)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-06-02
Quartz, respirable, >1% Qtz
0.13
0.31
0.42
Utility Man
2026-06-02
Respirable dust, <.1mg
0
Truck Driver
2026-06-02
Respirable dust, <.1mg
0
Truck Driver
2026-06-02
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2025-09-16
Respirable dust, <.1mg
0
Truck Driver
2025-09-16
Respirable dust, <.1mg
0
Truck Driver
2025-09-16
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-09-16
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2023-03-22
Respirable dust, <.1mg
0
Backhoe Operator
2023-03-22
Respirable dust, <.1mg
0
Utility Man
2023-03-22
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-03-22
Nuisance dust, respirable, <1% Qtz
0.16
10
0.02
Truck Driver
2023-03-22
Quartz, respirable, >1% Qtz
0.21
0.31
0.68
Bulldozer Operator
2015-05-21
Nuisance dust, respirable, <1% Qtz
0.51
10
0.05
Bulldozer Operator
2015-05-21
Respirable dust, <.1mg
0
Utility Man
2015-05-21
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-03-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-03-25
Respirable dust, <.1mg
0
Cleanup Man
2009-03-25
Respirable dust, <.1mg
0
Washer Operator
2009-03-25
Respirable dust, <.1mg
0
Truck Driver
2006-05-24
Respirable dust, <.1mg
0
Crusher Oper/Worker
2006-05-24
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-07-08
Respirable dust, <.1mg
0
Truck Driver
2004-07-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2004-07-08
Respirable dust, <.1mg
0
Truck Driver
2004-07-08
Unlisted Particulate, respirable, <1% Qtz
0.17
Truck Driver
2004-07-08
Respirable dust, <.1mg
0
Truck Driver
2001-07-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-07-25
Respirable dust, <.1mg
0
Truck Driver
2001-07-25
Quartz, respirable, >1% Qtz
0.15
1.94
0.08
Backhoe 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.
Amrize Mattaponi Plant recorded 8.03 reportable injury cases per 100 full-time workers in 2013.
Injury rate, 2013
ⓘ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.
8.03
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 2.46 and the all-US-mining average was 2.99 cases per 100 workers.
In Virginia, metal and nonmetal mining averaged 2.40 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
2013 *
8.03
0.00
0.000
2012 *
0.00
0.00
0.000
2010 *
0.00
0.00
0.000
2009 *
0.00
0.00
0.000
2008 *
0.00
0.00
0.000
2007 *
0.00
0.00
0.000
2006 *
0.00
0.00
0.000
2005 *
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
13
2025
13
2024
13
2023
12
2022
9
2021
3
2017
7
2016
8
2015
8
2014
7
2013
13
2012
12
2011
9
2010
10
2009
10
2008
14
2007
19
2006
22
2005
20
2004
18
2003
13
2002
12
2001
10
2000
10
Source: MSHA quarterly employment and production, updated weekly.
Amrize Mattaponi Plant sits in King William County, Virginia, where the Census mining category is 0.0% 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.
King William County, Virginia · Population 18,232
0.0%
Mining share of county employment
$85,212
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
4,830
2
1
414.1
2026 Q1
4,804
0
0
0.0
2025 Q4
5,450
0
0
0.0
2025 Q3
5,182
0
0
0.0
2025 Q2
4,755
0
0
0.0
2025 Q1
4,426
0
0
0.0
2024 Q4
4,480
1
0
223.2
2024 Q3
4,839
0
0
0.0
Show 83 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
5,580
0
0
0.0
2024 Q1
4,694
2
0
426.1
2023 Q4
4,356
1
0
229.6
2023 Q3
4,992
1
0
200.3
2023 Q2
5,164
0
0
0.0
2023 Q1
5,364
0
0
0.0
2022 Q4
3,893
0
0
0.0
2022 Q3
3,100
0
0
0.0
2022 Q2
4,234
0
0
0.0
2022 Q1
2,501
1
0
399.8
2021 Q4
1,248
0
0
0.0
2021 Q3
695
1
0
1438.8
2017 Q3
2,331
0
0
0.0
2017 Q2
3,106
0
0
0.0
2017 Q1
2,934
0
0
0.0
2016 Q4
2,815
0
0
0.0
2016 Q3
2,241
0
0
0.0
2016 Q2
2,456
1
0
407.2
2016 Q1
2,682
0
0
0.0
2015 Q4
2,497
0
0
0.0
2015 Q3
3,460
0
0
0.0
2015 Q2
2,468
1
0
405.2
2015 Q1
2,896
0
0
0.0
2014 Q4
3,092
0
0
0.0
2014 Q3
3,014
0
0
0.0
2014 Q2
3,510
0
0
0.0
2014 Q1
2,746
0
0
0.0
2013 Q4
4,947
2
0
404.3
2013 Q3
6,591
0
0
0.0
2013 Q2
6,665
0
0
0.0
2013 Q1
6,702
3
1
447.6
2012 Q4
5,508
0
0
0.0
2012 Q3
5,756
0
0
0.0
2012 Q2
6,743
2
0
296.6
2012 Q1
5,960
0
0
0.0
2011 Q4
2,302
3
1
1303.2
2011 Q3
5,151
0
0
0.0
2011 Q2
5,972
3
0
502.3
2011 Q1
6,487
0
0
0.0
2010 Q4
6,266
3
0
478.8
2010 Q3
6,308
0
0
0.0
2010 Q2
7,045
0
0
0.0
2010 Q1
5,618
5
2
890.0
2009 Q4
6,610
11
2
1664.1
2009 Q3
6,647
0
0
0.0
2009 Q2
5,493
0
0
0.0
2009 Q1
2,494
0
0
0.0
2008 Q4
7,246
2
0
276.0
2008 Q3
7,565
0
0
0.0
2008 Q2
9,186
0
0
0.0
2008 Q1
6,791
4
0
589.0
2007 Q4
7,175
0
0
0.0
2007 Q3
10,018
0
0
0.0
2007 Q2
9,227
0
0
0.0
2007 Q1
10,167
0
0
0.0
2006 Q4
10,520
0
0
0.0
2006 Q3
12,263
0
0
0.0
2006 Q2
10,670
2
0
187.4
2006 Q1
12,326
2
0
162.3
2005 Q4
10,381
0
0
0.0
2005 Q3
12,797
0
0
0.0
2005 Q2
11,412
1
1
87.6
2005 Q1
7,087
0
0
0.0
2004 Q4
8,855
0
0
0.0
2004 Q3
12,221
0
0
0.0
2004 Q2
11,268
0
0
0.0
2004 Q1
8,172
2
2
244.7
2003 Q4
7,096
0
0
0.0
2003 Q3
7,234
0
0
0.0
2003 Q2
9,377
0
0
0.0
2003 Q1
7,612
0
0
0.0
2002 Q4
8,160
0
0
0.0
2002 Q3
6,870
0
0
0.0
2002 Q2
7,375
0
0
0.0
2002 Q1
4,841
0
0
0.0
2001 Q4
5,076
0
0
0.0
2001 Q3
5,581
1
0
179.2
2001 Q2
5,128
0
0
0.0
2001 Q1
5,355
2
1
373.5
2000 Q4
5,758
0
0
0.0
2000 Q3
5,047
0
0
0.0
2000 Q2
6,639
0
0
0.0
2000 Q1
5,209
5
0
959.9
No fatalities recorded at this mine.
Reportable incidents
6 on file
2022 · 1 incident
August 10, 2022VA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerPOWERED HAULAGE
An equipment operator lost control of articulated haul truck, which climbed a berm and overturned. 2 days later the employee complained of back and elbow pain.
2013 · 1 incident
November 6, 2013VA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
Employee was replacing roller on conveyor. During installation of the new roller, the employee attempted to strike the roller in order to tap it into place. In doing so, he missed the roller can and hit his left index finger causing it to become lodged in between the roller can and frame. EE suffered severe laceration to left index finger and received eleven stitches.
2011 · 1 incident
August 27, 2011VA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON