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.
112 citations across 1,187 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: 2016-09-15.
On record since 2016.
Source: MSHA imminent-danger order records, updated weekly.
Denver Quarry has $22K in proposed MSHA penalties and $679 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.
$22K
proposed penalties
$22K
current assessed
$21K
paid to date
$679
outstanding
108 assessments are final orders; 2 contested dockets.
Of $200 in penalties contested before the Commission, $100 was upheld in final decisions.
As of the most recent assessment on 2026-05-14.
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 · 2% of citations on record
Stood as issued
1 · 50%
Vacated or withdrawn
1 · 50%
50%
Penalty reduction in decided contests
$200 proposed, $100 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2013-03-20.
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: 2025-10-09
5%
of limit-tested samples over the exposure limit
28
samples
19
limit-tested
Most sampled contaminants
Nuisance dust, total, <1% Qtz101 over
Respirable dust, <.1mg8
Nuisance dust, respirable, <1% Qtz5
Quartz, respirable, >1% Qtz4
Show the individual readings (28)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2018-12-06
Nuisance dust, total, <1% Qtz
20.63
10
2.06
Utility Man
2025-10-09
Nuisance dust, total, <1% Qtz
0.25
10
0.03
Crusher Oper/Worker
2025-10-09
Unlisted Particulate, total, <1% Qtz
0.25
Truck Driver
2025-10-09
Nuisance dust, total, <1% Qtz
0
10
0.00
Laborer, Bullgang
2021-01-14
Nuisance dust, total, <1% Qtz
0.97
10
0.10
Truck Driver
2021-01-14
Nuisance dust, total, <1% Qtz
1.96
10
0.20
Crusher Oper/Worker
2019-04-17
Nuisance dust, total, <1% Qtz
1.26
10
0.13
Utility Man
2018-12-06
Nuisance dust, total, <1% Qtz
1.02
10
0.10
Dry Screen Plant Operator
2018-12-06
Nuisance dust, total, <1% Qtz
2.67
10
0.27
Truck Driver
2018-12-06
Nuisance dust, total, <1% Qtz
8.09
10
0.81
Truck Loader
2018-12-06
Nuisance dust, total, <1% Qtz
3.87
10
0.39
Crusher Oper/Worker
2014-08-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-08-07
Respirable dust, <.1mg
0
Truck Driver
2014-08-07
Quartz, respirable, >1% Qtz
0.21
0.81
0.26
Crusher Oper/Worker
2011-06-02
Respirable dust, <.1mg
0
Truck Driver
2011-06-02
Respirable dust, <.1mg
0
Crusher Oper/Worker
2011-06-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2007-08-29
Nuisance dust, respirable, <1% Qtz
0.28
10
0.03
Drill Operator, Rotary Air
2006-01-19
Quartz, respirable, >1% Qtz
0.18
1.91
0.09
Truck Driver
2006-01-19
Nuisance dust, respirable, <1% Qtz
0.26
10
0.03
Front-end Loader Operator
2005-01-05
Nuisance dust, respirable, <1% Qtz
0.24
10
0.02
Crusher Oper/Worker
2005-01-05
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Crusher Oper/Worker
2003-01-09
Respirable dust, <.1mg
0
Truck Driver
2003-01-09
Respirable dust, <.1mg
0
Crusher Oper/Worker
2003-01-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-03-28
Quartz, respirable, >1% Qtz
1.31
1.72
0.76
Truck Driver
2001-03-28
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Truck Driver
2001-03-28
Quartz, respirable, >1% Qtz
0.16
1.28
0.13
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.
Denver 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
2024 *
0.00
0.00
0.000
2023 *
14.67
0.00
0.000
2022 *
4.67
4.67
0.000
2021 *
9.99
5.00
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
17
2025
24
2024
26
2023
28
2022
43
2021
41
2020
36
2019
27
2018
19
2017
22
2016
17
2015
19
2014
22
2013
23
2012
22
2011
20
2010
18
2009
20
2008
21
2007
22
2006
24
2005
23
2004
25
2003
25
2002
27
2001
28
2000
27
Source: MSHA quarterly employment and production, updated weekly.
Denver Quarry sits in Lancaster 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.
Lancaster County, Pennsylvania · Population 555,151
0.1%
Mining share of county employment
$83,703
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
EE was replacing a relay for the fuel pump truck. EE tried to drill out the new electrical terminal to fit on the existing stud using the drill press. The bit grabbed and spun the terminal, pulling EE's hand into the bit, causing a fracture and a laceration on the tip of EE's left index finger. EE received 12 sutures.
December 18, 2023PA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
EE's were replacing blow bars inside of a crusher. When the EE cut the steel bands on the skid, the top blow bars slid off and landed on EE's left foot. Two other EE's helped lift the bar off. EE got an X-ray and had no broken bones, only bruising.
2022 · 1 incident
December 19, 2022PA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
EE was doing maintenance at the finish plant screens. EE bent down to pick up a piece of angle iron and felt a pinch in back and shooting pain down the leg.
2021 · 2 incidents
June 11, 2021PA · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerDISORDERS (REPEATED TRAUMA)
EE was diagnosed with Carpal tunnel syndrome resulting from repetition of tasks over numerous years
February 3, 2021PA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
As the EE was traveling from his car to the shop he slipped on ice, spraining/straining his lower back. This was not reported until now because EE didn't seek medical attention until 2/4/2013.
Employee experienced a standard treshold shift (hearing loss).
March 5, 2009PA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee tripped while ascending the screen tower steps. When he caught himself he felt pain in lower back. The employee did not seek medical attention until 03/18/2009 and that is why the later entry. The accident was reported but at the time of the report was not MSHA reportable.
2007 · 1 incident
July 16, 2007PA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
As the employee was using a hammer to loosen a tooth from a loader bucket, a sliver of metal from the tooth chipped off and became imbedded into the employee's hand.
2005 · 1 incident
April 19, 2005PA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
AS THE EMPLOYEE WAS PUTTING A SCREEN PATCH ON THE TOP DECK FINISH SCREEN AT THE SECONDARY PLANT, THE EE LOOKED UPWARD TO TIGHTEN BOLTS WHEN STONE CHIPS FELL & STRUCK HIS LEFT EYE.
2004 · 1 incident
December 27, 2004PA · Metal/Non-Metaltipple/top lander/skip dumper operator, binman, topmanSLIP OR FALL OF PERSON
While preparing to assist in removing chunks of ice from a flat conveyor discharge chute, the employee climbed three steps to the base of a conveyor catwalk, turned around, lost his footing and fell face-forward to the ground. He subsequently jammed his shoulder when he put his right arm out to break his fall.
THE RIGHT REAR SIDE OF THE EMPLOYEE'S HAUL TRUCK HAD SUNK IN A SOFT SPOT ON THE UPPER ROADWAY. WHILE EMPLOYEE WAS DISMOUNTING THE ACCESS LADDER ON THE FRONT OF THE VEHICLE, HE MISJUDGED THE E XCESSIVE DISTANCE BETWEEN THE BOTTOM RUNG AND THE GROUND, CAUSING HIM TO LOSE HIS BALANCE AND FALL ONTO THE SIDE OF HIS LEG.
WHILE CHECKING THE AMOUNT OF MATERIAL IN HIS BIN TRUCK, THE EE SLIPPED OFF OF THE DUMP LADDER AND STRUCK THE TRUCK'S BATTERY BOX.
1999 · 1 incident
November 11, 1999PA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON