Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
← Back to search

Mt. Pleasant Mills Quarry: 54 MSHA citations Metal/Non-Metal

Controlled by Eric E Stahl
Mt. Pleasant Mills, Snyder County, PA  ·  Intermittent
MSHA Mine ID: 3605874

Mt. Pleasant Mills Quarry has $6K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Mt. Pleasant Mills Quarry.

Fatalities
0
Total incidents
2
Years on record
1989–1992
Latest incident
Apr 1992
Compliance record
MSHA citations since 2001
54
citations
8
significant & substantial
$5,900
proposed penalties
$5,900
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See National Limestone Quarry Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
34
inspections on record
388
inspection hours
n/a
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: 388 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Mt. Pleasant Mills Quarry has $6K 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
54 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-08-12.
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.
14.8%
significant & substantial
5.6%
high negligence or reckless
14.8%
reasonably likely or greater
44.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.9% low, 68.5% moderate, 5.6% high, 0.0% reckless.
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: 2025-08-12
0%
of limit-tested samples over the exposure limit
8
samples
6
limit-tested
Most sampled contaminants
  • Nuisance dust, total, <1% Qtz2
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg2
  • Arsenic fumes1
Show the individual readings (20)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-12-14 Copper fumes 0 300 0.00 Welder, etc.
2022-12-14 Nickel fumes 0 3 0.00 Welder, etc.
2022-12-14 Vanadium fumes 0 50 0.00 Welder, etc.
2022-12-14 Zinc oxide fumes 0 10 0.00 Welder, etc.
2022-12-14 Nuisance dust, total, <1% Qtz 1.06 10 0.11 Front-end Loader Operator
2022-12-14 Nuisance dust, total, <1% Qtz 0 10 0.00 Front-end Loader Operator
2022-12-14 Arsenic fumes 0 1500 0.00 Welder, etc.
2022-12-14 Beryllium fumes 0 6 0.00 Welder, etc.
2022-12-14 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2022-12-14 Chromium, insoluble 0 3 0.00 Welder, etc.
2022-12-14 Cobalt fumes 0 300 0.00 Welder, etc.
2022-12-14 Iron oxide fumes 0.41 20 0.02 Welder, etc.
2022-12-14 Lead fumes 0 450 0.00 Welder, etc.
2022-12-14 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2022-12-14 Manganese fumes 0.03 5 0.01 Welder, etc.
2022-12-14 Molybdenum fumes 0 20 0.00 Welder, etc.
2017-07-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-06-08 Quartz, respirable, >1% Qtz 0.6 1.17 0.51 Utility Man
2010-06-08 Quartz, respirable, >1% Qtz 0.23 0.87 0.26 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.
Ownership history
  1. G Flanders Keller 1950 to 1984
  2. National Limestone Quarry Inc 1984 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 2
2024 8
2023 6
2022 4
2021 5
2020 8
2019 7
2018 8
2017 8
2016 7
2015 7
2014 7
2013 12
2012 6
2011 7
2010 5
2009 8
2008 7
2007 8
2006 8
2005 4
2004 6
2003 6
2002 7
2001 6
2000 7
Source: MSHA quarterly employment and production, updated weekly.

Mt. Pleasant Mills Quarry sits in Snyder County, Pennsylvania, where the Census mining category is 0.5% 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.
Snyder County, Pennsylvania · Population 39,711
0.5%
Mining share of county employment
$68,435
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 1,434 0 0 0.0
2026 Q1 215 0 0 0.0
2025 Q4 534 0 0 0.0
2025 Q2 549 0 0 0.0
2025 Q1 187 0 0 0.0
2024 Q4 976 0 0 0.0
2024 Q3 1,181 0 0 0.0
2024 Q2 1,327 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 399 0 0 0.0
2023 Q4 1,335 0 0 0.0
2023 Q3 1,513 0 0 0.0
2023 Q2 817 0 0 0.0
2023 Q1 1,735 0 0 0.0
2022 Q4 579 3 1 5181.3
2022 Q3 1,432 0 0 0.0
2022 Q2 552 1 0 1811.6
2022 Q1 194 0 0 0.0
2021 Q4 452 0 0 0.0
2021 Q3 1,086 0 0 0.0
2021 Q2 404 0 0 0.0
2021 Q1 198 0 0 0.0
2020 Q4 3,193 4 0 1252.7
2020 Q3 709 0 0 0.0
2020 Q2 1,555 0 0 0.0
2020 Q1 1,120 7 0 6250.0
2019 Q4 1,476 0 0 0.0
2019 Q3 677 1 0 1477.1
2019 Q2 966 0 0 0.0
2019 Q1 564 0 0 0.0
2018 Q4 1,967 0 0 0.0
2018 Q3 1,332 0 0 0.0
2018 Q2 1,583 1 0 631.7
2018 Q1 1,350 0 0 0.0
2017 Q4 2,900 0 0 0.0
2017 Q3 1,335 4 0 2996.3
2017 Q2 1,200 0 0 0.0
2017 Q1 562 0 0 0.0
2016 Q4 1,816 0 0 0.0
2016 Q3 898 1 0 1113.6
2016 Q2 568 0 0 0.0
2016 Q1 1,870 0 0 0.0
2015 Q4 1,860 0 0 0.0
2015 Q3 974 0 0 0.0
2015 Q2 1,066 0 0 0.0
2015 Q1 460 0 0 0.0
2014 Q4 1,380 0 0 0.0
2014 Q3 508 0 0 0.0
2014 Q2 1,932 0 0 0.0
2014 Q1 613 0 0 0.0
2013 Q4 1,807 0 0 0.0
2013 Q3 2,292 0 0 0.0
2013 Q2 1,777 2 0 1125.5
2013 Q1 1,412 0 0 0.0
2012 Q4 487 1 0 2053.4
2012 Q3 1,662 2 0 1203.4
2012 Q2 832 0 0 0.0
2012 Q1 1,541 0 0 0.0
2011 Q4 1,932 0 0 0.0
2011 Q3 1,036 0 0 0.0
2011 Q2 2,639 0 0 0.0
2011 Q1 311 0 0 0.0
2010 Q4 1,461 0 0 0.0
2010 Q3 1,100 0 0 0.0
2010 Q2 1,045 4 1 3827.8
2010 Q1 318 0 0 0.0
2009 Q4 1,813 0 0 0.0
2009 Q3 2,222 0 0 0.0
2009 Q2 2,578 0 0 0.0
2009 Q1 376 0 0 0.0
2008 Q4 2,315 5 2 2159.8
2008 Q3 1,013 6 3 5923.0
2008 Q2 3,683 0 0 0.0
2008 Q1 1,051 0 0 0.0
2007 Q4 2,352 2 0 850.3
2007 Q3 966 0 0 0.0
2007 Q2 3,977 0 0 0.0
2007 Q1 1,529 0 0 0.0
2006 Q4 1,694 2 0 1180.6
2006 Q3 1,508 0 0 0.0
2006 Q2 2,790 0 0 0.0
2006 Q1 562 0 0 0.0
2005 Q4 731 1 0 1368.0
2005 Q3 1,067 0 0 0.0
2005 Q2 3,154 0 0 0.0
2005 Q1 341 0 0 0.0
2004 Q4 964 0 0 0.0
2004 Q3 2,704 0 0 0.0
2004 Q2 1,836 0 0 0.0
2004 Q1 487 1 0 2053.4
2003 Q4 1,763 0 0 0.0
2003 Q3 2,065 4 1 1937.0
2003 Q2 2,243 0 0 0.0
2003 Q1 563 0 0 0.0
2002 Q4 1,059 0 0 0.0
2002 Q3 1,313 0 0 0.0
2002 Q2 3,139 0 0 0.0
2002 Q1 971 0 0 0.0
2001 Q4 2,972 0 0 0.0
2001 Q3 904 0 0 0.0
2001 Q2 1,509 1 0 662.7
2001 Q1 353 0 0 0.0
2000 Q4 1,190 0 0 0.0
2000 Q3 1,866 0 0 0.0
2000 Q2 1,925 0 0 0.0
2000 Q1 950 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

1992 · 1 incident

April 15, 1992 PA · Metal/Non-Metal continuous miner helper, coal mole helper, bridgeman HANDLING OF MATERIALS
National Limestone Quarry Inc · Struck by falling object

HE WAS PUTTING LEGS ON A DUMP BOX TO MOUNT TO A CONVEYOR FOR TRANSPORT, WHEN THE METAL BROKE AT THE PICKING EYE AND THE END OF THE DUMP BOX FELL ON HIS SHOULDER.

1989 · 1 incident

May 30, 1989 PA · Metal/Non-Metal SLIP OR FALL OF PERSON
National Limestone Quarry Inc · Fall to the walkway or working surface

HE WAS HELPING REMOVE A MOTOR WHEN HE LOST HIS FOOTING AND TWISTED HIS BACK, THE AREA WHERE HE WAS STANDINGH WAS WET AND CAUSED HIM TO SLIP.