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: 927 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Naginey Quarry has $21K 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.
$21K
proposed penalties
$21K
current assessed
$21K
paid to date
$0
outstanding
115 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-29.
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: 2025-05-14
6%
of limit-tested samples over the exposure limit
34
samples
17
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz151 over
Respirable dust, <.1mg13
Nuisance dust, respirable, <1% Qtz4
Arsenic fumes1
Show the individual readings (46)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2021-12-15
Quartz, respirable, >1% Qtz
1.28
1.16
1.10
Laborer, Bullgang
2025-05-14
Respirable dust, <.1mg
0
Crusher Oper/Worker
2025-05-14
Quartz, respirable, >1% Qtz
0.22
1.14
0.19
Crusher Oper/Worker
2022-08-24
Respirable dust, <.1mg
0
Front-end Loader Operator
2022-08-24
Respirable dust, <.1mg
0
Laborer, Bullgang
2022-08-24
Quartz, respirable, >1% Qtz
0.21
Laborer, Bullgang
2022-08-24
Respirable dust, <.1mg
0
Complete Load-Haul-Dump
2021-12-15
Quartz, respirable, >1% Qtz
0.73
1.25
0.58
Laborer, Bullgang
2021-12-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-12-15
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2020-01-29
Respirable dust, <.1mg
0
Backhoe Operator
2020-01-29
Quartz, respirable, >1% Qtz
0.18
Truck Driver
2018-10-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-10-17
Quartz, respirable, >1% Qtz
0.2
Crusher Oper/Worker
2018-10-17
Quartz, respirable, >1% Qtz
0.56
Truck Driver
2018-10-17
Quartz, respirable, >1% Qtz
1.53
1.68
0.91
Crusher Oper/Worker
2015-10-14
Vanadium fumes
0
50
0.00
Welder, etc.
2015-10-14
Arsenic fumes
0
500
0.00
Welder, etc.
2015-10-14
Beryllium fumes
0
2
0.00
Welder, etc.
2015-10-14
Cadmium oxide fumes
0.15
100
0.00
Welder, etc.
2015-10-14
Chromium, insoluble
0
1
0.00
Welder, etc.
2015-10-14
Cobalt fumes
0
100
0.00
Welder, etc.
2015-10-14
Copper fumes
0.16
100
0.00
Welder, etc.
2015-10-14
Iron oxide fumes
0.04
10
0.00
Welder, etc.
2015-10-14
Lead fumes
0.86
150
0.01
Welder, etc.
2015-10-14
Magnesium oxide fumes
0
10
0.00
Welder, etc.
2015-10-14
Manganese fumes
0
5
0.00
Welder, etc.
2015-10-14
Molybdenum fumes
0
10
0.00
Welder, etc.
2015-10-14
Nickel fumes
0
1
0.00
Welder, etc.
2015-10-14
Zinc oxide fumes
0
5
0.00
Welder, etc.
2013-02-26
Quartz, respirable, >1% Qtz
0.26
0.95
0.27
Drill Operator, Rotary
2013-02-26
Quartz, respirable, >1% Qtz
0.19
0.93
0.20
Drill Operator, Rotary
2011-04-21
Quartz, respirable, >1% Qtz
0.59
1.82
0.32
Crusher Oper/Worker
2011-04-21
Nuisance dust, respirable, <1% Qtz
0.15
10
0.02
Laborer, Bullgang
2011-04-21
Respirable dust, <.1mg
0
Laborer, Bullgang
2011-04-21
Quartz, respirable, >1% Qtz
0.27
2.12
0.13
Truck Driver
2007-08-01
Quartz, respirable, >1% Qtz
0.44
1.55
0.28
Utility Man
2007-08-01
Quartz, respirable, >1% Qtz
1.17
1.54
0.76
Crusher Oper/Worker
2007-08-01
Nuisance dust, respirable, <1% Qtz
0.72
10
0.07
Front-end Loader Operator
2007-08-01
Nuisance dust, respirable, <1% Qtz
0.25
10
0.03
Truck Driver
2006-02-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2006-02-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2006-02-15
Respirable dust, <.1mg
0
Truck Driver
2004-10-06
Quartz, respirable, >1% Qtz
0.44
2.73
0.16
Crusher Oper/Worker
2004-10-06
Respirable dust, <.1mg
0
Truck Driver
2004-10-06
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
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.
Naginey Quarry 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
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
8.40
0.00
0.000
2019 *
6.65
6.65
0.000
2018 *
0.00
0.00
0.000
2017 *
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
7
2025
9
2024
8
2023
10
2022
11
2021
8
2020
10
2019
12
2018
16
2017
11
2016
10
2015
14
2014
14
2013
14
2012
13
2011
13
2010
12
2009
12
2008
14
2007
14
2006
15
2005
15
2004
14
2003
15
2002
17
2001
17
2000
15
Source: MSHA quarterly employment and production, updated weekly.
Naginey Quarry sits in Mifflin County, Pennsylvania, where the Census mining category is 0.4% 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.
Mifflin County, Pennsylvania · Population 46,074
0.4%
Mining share of county employment
$61,415
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
Glenn O Hawbaker Inc · Caught in, under or between a moving and a stationary object
Another company came to tighten a bolt on the quick coupler of a CX350. They tried with a swivel head ratchet on the nut end & an air impact on the head of the bolt. It didn't work. Then switched places & our EE was holding the ratchet with a hand on the head of the bolt & tried to loosen it, the pivot pin in the ratchet broke & smashed EE's left thumb.
While putting a 30' piece of channel frame conveyor into the shop to avoid the rain the straps on one end slid off the forks on the telehandler allowing the end of the conveyor to fall aprox 3' onto an employees left foot.
2013 · 1 incident
April 24, 2013PA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
Employee (Mechanic) was driving seal into hub when he hit the driver with a hammer the hammer bounced striking employees left hand on the skin between the thumb and index finger lacerating a 2cm skin area.
2012 · 1 incident
April 25, 2012PA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Repairing conveyor belt using homemade belt clamp, when removing clamp, the clamp closed and pinched right ring finger between two pieces of angle iron, lacerating nail area of finger.
2008 · 1 incident
May 5, 2008PA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
WHILE STANDING ON TIRE TO GREASE LOADER EMPLOYEELOST FOOTING ON LOOSE GRAVEL TIRE SLID DOWN TIREONTO GROUND, STRIKING LEFT ELBOW ON CONCRETE. FRACTURED LEFT ELBOW.
June 23, 2001PA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
ASSISTING MECHANIC, PLACVED 55 GAL DRUM OF OIL IN LOADER BUCKET. TOOKE TO AREA IN SHOP WHERE WORKING ON EQUIPMENT. UNLOADED DRUM. WORK ANOTHER HOUR THEN WENT HOME. DEBVELOPED BURNING SENSATION IN RIGHT THIGH ON WAY HOME. COULD NOT USE LEG VERY WELL THAT NIGHT. WENT TO ER AND TOLD THINKS HE HAS TORN MUSCLE /TENDON.
2000 · 1 incident
May 25, 2000PA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)