Mining Incidents

Cobleskill Metal/Non-Metal

Tompkins Bluestone Co. Inc · Surface
Controlled by Richard Mirch
East Branch, Delaware County, NY  ·  Abandoned
MSHA Mine ID: 3003636

MSHA record for Cobleskill (mine ID 3003636). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Inspection activity
MSHA inspections since 2008
4
inspections on record
17
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: 17 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
  1. Tompkins Bluestone Co. Inc 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2011 0
2010 2
2009 3
2008 3
Source: MSHA quarterly employment and production, updated weekly.

Cobleskill sits in Delaware County, New York, 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.
Delaware County, New York · Population 44,551
0.1%
Mining share of county employment
$60,226
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
2011 Q3 0 0 0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 1 0 0 0.0
2010 Q3 7 0 0 0.0
2010 Q2 541 0 0 0.0
2010 Q1 181 0 0 0.0
2009 Q4 181 0 0 0.0
Show 5 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2009 Q3 541 0 0 0.0
2009 Q2 361 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 121 0 0 0.0
2008 Q3 361 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.