Comstock Quarry II: 3 MSHA citations Metal/Non-Metal
Comstock Quarry II has $318 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2006
3
citations
0
significant & substantial
$318
proposed penalties
$318
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
12
inspections on record
76
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: 76 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Comstock Quarry II has $318 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.$318
proposed penalties
$318
current assessed
$318
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-05-18.
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.0.0%
significant & substantial
33.3%
high negligence or reckless
0.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 66.7% moderate, 33.3% 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: 2025-12-11
ⓘ
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.50%
of limit-tested samples over the exposure limit
4
samples
2
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz31 over
- Respirable dust, <.1mg1
Show the individual readings (4)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2021-10-19 | Quartz, respirable, >1% Qtz | 0.62 | 0.59 | 1.05 | Bulldozer Operator |
| 2025-12-11 | Respirable dust, <.1mg | 0 | Backhoe Operator | ||
| 2025-12-11 | Quartz, respirable, >1% Qtz | 0.25 | Truck Driver | ||
| 2021-10-19 | Quartz, respirable, >1% Qtz | 0.18 | 0.58 | 0.31 | 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.
Ownership history
- Meshoppen Stone Inc. 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 3 |
| 2025 | 5 |
| 2023 | 1 |
| 2022 | 1 |
| 2021 | 3 |
| 2020 | 0 |
| 2008 | 0 |
| 2007 | 2 |
| 2006 | 2 |
Source: MSHA quarterly employment and production, updated weekly.
Comstock Quarry II sits in Bradford County, Pennsylvania, where the Census mining category is 1.9% 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.Bradford County, Pennsylvania · Population 59,971
1.9%
Mining share of county employment
$62,482
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 | 10 | 0 | 0 | 0.0 |
| 2026 Q1 | 217 | 0 | 0 | 0.0 |
| 2025 Q4 | 280 | 0 | 0 | 0.0 |
| 2023 Q3 | 0 | 0 | 0 | |
| 2023 Q2 | 0 | 0 | 0 | |
| 2023 Q1 | 100 | 0 | 0 | 0.0 |
| 2022 Q4 | 0 | 0 | 0 | |
| 2022 Q3 | 122 | 0 | 0 | 0.0 |
Show 12 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2022 Q2 | 0 | 1 | 0 | |
| 2021 Q4 | 82 | 1 | 0 | 12195.1 |
| 2020 Q4 | 0 | 0 | 0 | |
| 2008 Q2 | 0 | 0 | 0 | |
| 2008 Q1 | 0 | 0 | 0 | |
| 2007 Q4 | 0 | 0 | 0 | |
| 2007 Q3 | 360 | 0 | 0 | 0.0 |
| 2007 Q2 | 480 | 0 | 0 | 0.0 |
| 2007 Q1 | 0 | 0 | 0 | |
| 2006 Q3 | 0 | 0 | 0 | |
| 2006 Q2 | 540 | 1 | 0 | 1851.9 |
| 2006 Q1 | 1,920 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.