Mining Incidents

Plumstead Materials: 199 MSHA citations Metal/Non-Metal

Doylestown, Bucks County, PA  ·  Active
MSHA Mine ID: 3608548

Plumstead Materials has $41K in proposed MSHA penalties and $4K outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
13
Years on record
2002–2026
Latest incident
Apr 2026
Compliance record
MSHA citations since 2000
199
citations
55
significant & substantial
$40,748
proposed penalties
$37,079
paid to date
91% of proposed penalties paid to date, a $3,669 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
70
inspections on record
1,409
inspection hours
14.1
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.
199 citations across 1,409 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2014-05-05.
On record since 2014.
Source: MSHA imminent-danger order records, updated weekly.

Plumstead Materials has $41K in proposed MSHA penalties and $4K 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.
$41K
proposed penalties
$41K
current assessed
$37K
paid to date
$4K
outstanding
189 assessments are final orders; 1 contested dockets.
Of $1K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2026-07-01.
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.
27.8%
significant & substantial
18.2%
high negligence or reckless
27.8%
reasonably likely or greater
53.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 13.1% low, 68.7% moderate, 18.2% high, 0.0% reckless.
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.
1 citations 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
$1K proposed, $1K 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 2019-11-18.
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.
Docket Decision Judge Year Proposed / upheld
PENN 2020-0030 Default 2020 $1K → $1K
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-10-29
0%
of limit-tested samples over the exposure limit
38
samples
27
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz19
  • Nuisance dust, respirable, <1% Qtz7
  • Respirable dust, <.1mg6
  • Unlisted Particulate, respirable, <1% Qtz4
Show the individual readings (38)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-29 Respirable dust, <.1mg 0 Crusher Oper/Worker
2025-10-29 Unlisted Particulate, respirable, <1% Qtz 0.31 Front-end Loader Operator
2025-10-29 Unlisted Particulate, respirable, <1% Qtz 0.24 Dry Screen Plant Operator
2023-04-19 Quartz, respirable, >1% Qtz 0.4 Crusher Oper/Worker
2023-04-19 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-04-19 Respirable dust, <.1mg 0 Truck Driver
2023-04-19 Quartz, respirable, >1% Qtz 0.52 1.96 0.27 Utility Man
2020-10-28 Nuisance dust, total, <1% Qtz 0.57 10 0.06 Backhoe Operator
2020-10-28 Nuisance dust, total, <1% Qtz 7.47 10 0.75 Utility Man
2017-01-31 Quartz, respirable, >1% Qtz 0.35 1.03 0.34 Crusher Oper/Worker
2017-01-31 Quartz, respirable, >1% Qtz 0.59 1.18 0.50 Laborer, Bullgang
2012-12-19 Quartz, respirable, >1% Qtz 0.23 1.13 0.20 Crusher Oper/Worker
2012-12-19 Respirable dust, <.1mg 0 Backhoe Operator
2012-12-19 Nuisance dust, respirable, <1% Qtz 0.36 10 0.04 Crusher Oper/Worker
2009-06-11 Quartz, respirable, >1% Qtz 0.34 2.42 0.14 Crusher Oper/Worker
2009-06-11 Quartz, respirable, >1% Qtz 0.17 1.59 0.11 Crusher Oper/Worker
2009-06-11 Quartz, respirable, >1% Qtz 0.28 1.72 0.16 Laborer, Bullgang
2009-06-11 Quartz, respirable, >1% Qtz 0.77 1.64 0.47 Crusher Oper/Worker
2007-08-01 Quartz, respirable, >1% Qtz 0.51 0.96 0.53 Crusher Oper/Worker
2007-08-01 Quartz, respirable, >1% Qtz 0.65 2.57 0.25 Crusher Oper/Worker
2007-08-01 Unlisted Particulate, respirable, <1% Qtz 0.17 Crusher Oper/Worker
2006-04-12 Unlisted Particulate, respirable, <1% Qtz 0.62 Utility Man
2006-04-12 Quartz, respirable, >1% Qtz 0.33 1.78 0.19 Drill Operator, Rotary Air
2005-12-21 Quartz, respirable, >1% Qtz 0.27 1.22 0.22 Bulldozer Operator
2005-12-21 Quartz, respirable, >1% Qtz 1.39 3.17 0.44 Crusher Oper/Worker
2005-07-14 Quartz, respirable, >1% Qtz 0.19 1.54 0.12 Front-end Loader Operator
2005-07-14 Quartz, respirable, >1% Qtz 0.36 1.75 0.21 Backhoe Operator
2005-07-14 Quartz, respirable, >1% Qtz 0.5 2.14 0.23 Crusher Oper/Worker
2004-02-19 Nuisance dust, respirable, <1% Qtz 1.03 10 0.10 Crusher Oper/Worker
2004-02-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-02-19 Nuisance dust, respirable, <1% Qtz 0.37 10 0.04 Truck Driver
2004-02-19 Nuisance dust, respirable, <1% Qtz 0.46 10 0.05 Crusher Oper/Worker
2002-10-03 Nuisance dust, respirable, <1% Qtz 0.52 10 0.05 Crusher Oper/Worker
2002-10-03 Nuisance dust, respirable, <1% Qtz 0.55 10 0.06 Crusher Oper/Worker
2002-10-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2001-05-15 Nuisance dust, respirable, <1% Qtz 0.66 10 0.07 Front-end Loader Operator
2001-05-15 Quartz, respirable, >1% Qtz 0.16 1.16 0.14 Front-end Loader Operator
2001-05-15 Quartz, respirable, >1% Qtz 1.32 2.13 0.62 Crusher Oper/Worker
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.

Plumstead Materials recorded 0.00 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below 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 * 0.00 0.00 0.000
2024 * 8.85 4.43 0.000
2023 * 5.14 0.00 0.000
2022 * 5.34 0.00 0.000
2021 * 4.70 4.70 0.000
2020 * 0.00 0.00 0.000
2019 * 4.71 4.71 0.000
2018 * 8.36 8.36 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
  1. Miller & Son Paving Inc 1996 to 2015
  2. Naceville Materials J.V. 2015 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 19
2025 19
2024 20
2023 15
2022 15
2021 17
2020 17
2019 17
2018 19
2017 20
2016 18
2015 19
2014 18
2013 19
2012 19
2011 18
2010 14
2009 14
2008 14
2007 15
2006 13
2005 15
2004 15
2003 11
2002 10
2001 12
2000 13
Source: MSHA quarterly employment and production, updated weekly.

Plumstead Materials sits in Bucks County, Pennsylvania, where the Census mining category is 0.1% 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.
Bucks County, Pennsylvania · Population 645,993
0.1%
Mining share of county employment
$111,951
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 11,867 7 1 589.9
2026 Q1 10,491 0 0 0.0
2025 Q4 11,870 0 0 0.0
2025 Q3 11,305 5 2 442.3
2025 Q2 10,544 0 0 0.0
2025 Q1 9,530 0 0 0.0
2024 Q4 11,288 6 1 531.5
2024 Q3 11,555 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 11,509 2 0 173.8
2024 Q1 10,832 0 0 0.0
2023 Q4 10,119 1 0 98.8
2023 Q3 9,799 0 0 0.0
2023 Q2 9,718 2 1 205.8
2023 Q1 9,240 0 0 0.0
2022 Q4 9,281 0 0 0.0
2022 Q3 9,362 0 0 0.0
2022 Q2 9,104 2 2 219.7
2022 Q1 9,683 0 0 0.0
2021 Q4 11,156 8 4 717.1
2021 Q3 11,779 0 0 0.0
2021 Q2 10,897 2 0 183.5
2021 Q1 8,686 0 0 0.0
2020 Q4 10,965 1 0 91.2
2020 Q3 10,161 1 0 98.4
2020 Q2 7,551 0 0 0.0
2020 Q1 10,668 0 0 0.0
2019 Q4 10,652 0 0 0.0
2019 Q3 11,021 0 0 0.0
2019 Q2 10,921 1 0 91.6
2019 Q1 9,839 0 0 0.0
2018 Q4 11,169 1 0 89.5
2018 Q3 12,517 0 0 0.0
2018 Q2 12,522 3 1 239.6
2018 Q1 11,612 3 1 258.4
2017 Q4 13,328 0 0 0.0
2017 Q3 14,000 0 0 0.0
2017 Q2 13,528 7 2 517.4
2017 Q1 13,039 5 1 383.5
2016 Q4 9,810 0 0 0.0
2016 Q3 11,103 2 2 180.1
2016 Q2 11,030 0 0 0.0
2016 Q1 10,942 4 2 365.6
2015 Q4 13,176 0 0 0.0
2015 Q3 13,407 2 0 149.2
2015 Q2 12,309 0 0 0.0
2015 Q1 11,670 3 0 257.1
2014 Q4 12,313 0 0 0.0
2014 Q3 11,220 0 0 0.0
2014 Q2 10,671 4 2 374.8
2014 Q1 10,499 2 1 190.5
2013 Q4 9,017 0 0 0.0
2013 Q3 8,040 6 4 746.3
2013 Q2 9,759 0 0 0.0
2013 Q1 8,397 0 0 0.0
2012 Q4 7,196 3 0 416.9
2012 Q3 4,561 1 1 219.3
2012 Q2 9,360 0 0 0.0
2012 Q1 6,566 5 3 761.5
2011 Q4 5,712 0 0 0.0
2011 Q3 6,975 7 3 1003.6
2011 Q2 7,188 4 4 556.5
2011 Q1 6,648 3 0 451.3
2010 Q4 8,331 0 0 0.0
2010 Q3 8,904 0 0 0.0
2010 Q2 7,972 0 0 0.0
2010 Q1 5,547 1 0 180.3
2009 Q4 7,932 3 1 378.2
2009 Q3 6,956 0 0 0.0
2009 Q2 5,064 1 1 197.5
2009 Q1 4,470 1 0 223.7
2008 Q4 6,506 0 0 0.0
2008 Q3 6,005 2 2 333.1
2008 Q2 9,111 0 0 0.0
2008 Q1 7,787 0 0 0.0
2007 Q4 10,408 1 0 96.1
2007 Q3 9,317 2 1 214.7
2007 Q2 11,496 0 0 0.0
2007 Q1 8,801 0 0 0.0
2006 Q4 10,465 0 0 0.0
2006 Q3 10,263 0 0 0.0
2006 Q2 9,374 2 0 213.4
2006 Q1 8,964 0 0 0.0
2005 Q4 10,111 2 0 197.8
2005 Q3 11,915 3 0 251.8
2005 Q2 10,563 0 0 0.0
2005 Q1 10,189 0 0 0.0
2004 Q4 10,156 4 0 393.9
2004 Q3 9,506 11 1 1157.2
2004 Q2 8,157 0 0 0.0
2004 Q1 6,844 4 0 584.5
2003 Q4 8,727 0 0 0.0
2003 Q3 8,232 2 0 243.0
2003 Q2 7,202 0 0 0.0
2003 Q1 6,351 0 0 0.0
2002 Q4 7,477 4 0 535.0
2002 Q3 7,172 0 0 0.0
2002 Q2 7,869 0 0 0.0
2002 Q1 7,201 6 1 833.2
2001 Q4 7,277 0 0 0.0
2001 Q3 6,928 0 0 0.0
2001 Q2 7,076 9 2 1271.9
2000 Q4 7,627 0 0 0.0
2000 Q3 6,993 0 0 0.0
2000 Q2 6,165 3 0 486.6
2000 Q1 5,161 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

13 on file

2026 · 2 incidents

April 10, 2026 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Naceville Materials J.V. · Contact with hot objects or substances

EE got burnt while cutting a bolt with a torch.

February 12, 2026 PA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver EXPLODING VESSELS UNDER PRESSURE
Naceville Materials J.V. · Struck by... (Not Elsewhere Classified)

EE opened an air line to bleed the system and forgot to turn off a ball valve at the air tank causing the air line that runs under the building to come up and out of the hole and hit EE in the head.

2025 · 1 incident

August 1, 2025 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Naceville Materials J.V. · Over-exertion in lifting objects

EE hurt EE's wrist shoveling under a conveyor.

2024 · 2 incidents

August 24, 2024 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Naceville Materials J.V. · Caught in, under or between a moving and a stationary object

Injured middle finger on left hand when EE was putting heavy chains away.

February 27, 2024 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Naceville Materials J.V. · Caught in, under or between a moving and a stationary object

EE was assembling the bearing house on the 1B Wash Screw & smashed a finger

2023 · 1 incident

2022 · 1 incident

February 10, 2022 PA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Naceville Materials J.V. · Over-exertion (Not Elsewhere Classified)

EE was cleaning the window of the Loader EE was running that day, slipped and caught self, hurt shoulders

2021 · 1 incident

June 8, 2021 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Naceville Materials J.V. · Struck by falling object

Was helping secondary plant operator clear jammed chute. Operator was putting rocks on belt and I was throwing them off. I was grabbing a rock and the operator did not see me when they dropped another rock and it landed on my hand.

2019 · 1 incident

March 28, 2019 PA · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
Naceville Materials J.V. · Fall to the walkway or working surface

EE was looking for hole to direct backhoe to dig for tunnel hole and fell into the hole.

2018 · 2 incidents

April 4, 2018 PA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Naceville Materials J.V. · Struck by falling object

Pulling section of the guard off. EE was putting strap on guard and it fell hitting left shin.

February 10, 2018 PA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Naceville Materials J.V. · Over-exertion in lifting objects

EE strained back shoveling.

2014 · 1 incident

2002 · 1 incident

February 5, 2002 PA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Miller & Son Paving Inc · Struck by flying object

HAMMERING DIRT OFF RETURN ROLLER, GOT PIECE OF DIRT IN EYE.