Employee was breaking a sideline this process involves striking the wedges swinging the hammer with a side-to-side motion. While doing this the employee missed the wedge and struck the wall causing the hammer to deflect and rotated the employee rapidly causing a strain to the lower lumbar.
Keystone Blue Quarry Metal/Non-Metal
Keystone Blue Quarry has $23K in proposed MSHA penalties and $0 outstanding across 6 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 24
- Years on record
- 1983–2025
- Latest incident
- Sep 2025
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Keystone Blue Quarry has $23K in proposed MSHA penalties and $0 outstanding across 6 contested dockets.
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
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.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 4,512 | 0 | 0 | 0.0 |
| 2025 Q3 | 5,879 | 0 | 0 | 0.0 |
| 2025 Q2 | 4,574 | 0 | 0 | 0.0 |
| 2025 Q1 | 3,755 | 0 | 0 | 0.0 |
| 2024 Q4 | 4,582 | 0 | 0 | 0.0 |
| 2024 Q3 | 4,078 | 0 | 0 | 0.0 |
| 2024 Q2 | 4,670 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,982 | 0 | 0 | 0.0 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 2,561 | 0 | 0 | 0.0 |
| 2023 Q3 | 3,038 | 0 | 0 | 0.0 |
| 2023 Q2 | 3,868 | 3 | 2 | 775.6 |
| 2023 Q1 | 3,743 | 0 | 0 | 0.0 |
| 2022 Q4 | 3,182 | 0 | 0 | 0.0 |
| 2022 Q3 | 4,047 | 0 | 0 | 0.0 |
| 2022 Q2 | 4,165 | 3 | 1 | 720.3 |
| 2022 Q1 | 3,615 | 3 | 0 | 829.9 |
| 2021 Q4 | 3,485 | 0 | 0 | 0.0 |
| 2021 Q3 | 5,495 | 1 | 0 | 182.0 |
| 2021 Q2 | 6,082 | 0 | 0 | 0.0 |
| 2021 Q1 | 5,395 | 1 | 0 | 185.4 |
| 2020 Q4 | 6,840 | 0 | 0 | 0.0 |
| 2020 Q3 | 5,288 | 4 | 0 | 756.4 |
| 2020 Q2 | 6,410 | 0 | 0 | 0.0 |
| 2020 Q1 | 7,251 | 6 | 2 | 827.5 |
| 2019 Q4 | 7,820 | 0 | 0 | 0.0 |
| 2019 Q3 | 7,831 | 2 | 0 | 255.4 |
| 2019 Q2 | 8,224 | 0 | 0 | 0.0 |
| 2019 Q1 | 7,868 | 0 | 0 | 0.0 |
| 2018 Q4 | 7,466 | 3 | 2 | 401.8 |
| 2018 Q3 | 7,789 | 0 | 0 | 0.0 |
| 2018 Q2 | 8,281 | 0 | 0 | 0.0 |
| 2018 Q1 | 7,507 | 0 | 0 | 0.0 |
| 2017 Q4 | 8,056 | 1 | 0 | 124.1 |
| 2017 Q3 | 7,533 | 0 | 0 | 0.0 |
| 2017 Q2 | 8,813 | 9 | 6 | 1021.2 |
| 2017 Q1 | 9,349 | 0 | 0 | 0.0 |
| 2016 Q4 | 9,230 | 2 | 1 | 216.7 |
| 2016 Q3 | 8,824 | 0 | 0 | 0.0 |
| 2016 Q2 | 8,445 | 0 | 0 | 0.0 |
| 2016 Q1 | 7,481 | 0 | 0 | 0.0 |
| 2015 Q4 | 8,525 | 0 | 0 | 0.0 |
| 2015 Q3 | 10,845 | 0 | 0 | 0.0 |
| 2015 Q2 | 8,366 | 0 | 0 | 0.0 |
| 2015 Q1 | 8,946 | 0 | 0 | 0.0 |
| 2014 Q4 | 9,026 | 2 | 1 | 221.6 |
| 2014 Q3 | 8,230 | 0 | 0 | 0.0 |
| 2014 Q2 | 8,989 | 3 | 1 | 333.7 |
| 2014 Q1 | 8,077 | 0 | 0 | 0.0 |
| 2013 Q4 | 8,411 | 1 | 1 | 118.9 |
| 2013 Q3 | 8,168 | 0 | 0 | 0.0 |
| 2013 Q2 | 8,723 | 1 | 0 | 114.6 |
| 2013 Q1 | 8,643 | 2 | 0 | 231.4 |
| 2012 Q4 | 8,818 | 0 | 0 | 0.0 |
| 2012 Q3 | 8,413 | 0 | 0 | 0.0 |
| 2012 Q2 | 9,802 | 4 | 2 | 408.1 |
| 2012 Q1 | 8,830 | 0 | 0 | 0.0 |
| 2011 Q4 | 8,498 | 2 | 1 | 235.3 |
| 2011 Q3 | 9,670 | 0 | 0 | 0.0 |
| 2011 Q2 | 8,893 | 1 | 1 | 112.4 |
| 2011 Q1 | 7,850 | 0 | 0 | 0.0 |
| 2010 Q4 | 8,857 | 1 | 0 | 112.9 |
| 2010 Q3 | 8,578 | 5 | 2 | 582.9 |
| 2010 Q2 | 8,833 | 0 | 0 | 0.0 |
| 2010 Q1 | 7,711 | 1 | 1 | 129.7 |
| 2009 Q4 | 8,169 | 0 | 0 | 0.0 |
| 2009 Q3 | 9,417 | 2 | 0 | 212.4 |
| 2009 Q2 | 8,302 | 0 | 0 | 0.0 |
| 2009 Q1 | 8,164 | 2 | 0 | 245.0 |
| 2008 Q4 | 8,600 | 0 | 0 | 0.0 |
| 2008 Q3 | 8,206 | 5 | 3 | 609.3 |
| 2008 Q2 | 10,178 | 0 | 0 | 0.0 |
| 2008 Q1 | 9,121 | 7 | 2 | 767.5 |
| 2007 Q4 | 8,709 | 0 | 0 | 0.0 |
| 2007 Q3 | 9,129 | 0 | 0 | 0.0 |
| 2007 Q2 | 10,606 | 0 | 0 | 0.0 |
| 2007 Q1 | 10,286 | 4 | 1 | 388.9 |
| 2006 Q4 | 9,478 | 0 | 0 | 0.0 |
| 2006 Q3 | 8,338 | 6 | 1 | 719.6 |
| 2006 Q2 | 8,961 | 12 | 6 | 1339.1 |
| 2006 Q1 | 8,505 | 0 | 0 | 0.0 |
| 2005 Q4 | 7,167 | 0 | 0 | 0.0 |
| 2005 Q3 | 8,411 | 2 | 1 | 237.8 |
| 2005 Q2 | 7,533 | 0 | 0 | 0.0 |
| 2005 Q1 | 7,003 | 0 | 0 | 0.0 |
| 2004 Q4 | 8,102 | 0 | 0 | 0.0 |
| 2004 Q3 | 9,694 | 0 | 0 | 0.0 |
| 2004 Q2 | 7,439 | 0 | 0 | 0.0 |
| 2004 Q1 | 7,795 | 2 | 1 | 256.6 |
| 2003 Q4 | 8,353 | 0 | 0 | 0.0 |
| 2003 Q3 | 7,443 | 0 | 0 | 0.0 |
| 2003 Q2 | 8,375 | 0 | 0 | 0.0 |
| 2003 Q1 | 8,675 | 0 | 0 | 0.0 |
| 2002 Q4 | 7,853 | 0 | 0 | 0.0 |
| 2002 Q3 | 7,375 | 0 | 0 | 0.0 |
| 2002 Q2 | 5,612 | 4 | 0 | 712.8 |
| 2002 Q1 | 6,744 | 0 | 0 | 0.0 |
| 2001 Q4 | 7,426 | 0 | 0 | 0.0 |
| 2001 Q3 | 6,991 | 0 | 0 | 0.0 |
| 2001 Q2 | 7,915 | 10 | 3 | 1263.4 |
| 2001 Q1 | 6,735 | 0 | 0 | 0.0 |
| 2000 Q4 | 7,427 | 0 | 0 | 0.0 |
| 2000 Q3 | 6,478 | 0 | 0 | 0.0 |
| 2000 Q2 | 7,046 | 0 | 0 | 0.0 |
| 2000 Q1 | 4,549 | 0 | 0 | 0.0 |
Reportable incidents
24 on file2025 · 2 incidents
Miner was adding a section of drill steel using a wrench to tighten the connection. The miner's left thumb was caught between the drill boom and the wrench causing a small avulsion to the left thumb.
2004 · 1 incident
EE came to work on 3/10/04 complaining with pain in his right knee. He told supervisor he twisted his knee on Monday 3/08/04. There were no witnesses & EE had not mentioned any problems prior to this date.
2003 · 1 incident
EMPLOYEE BACKED TRUCK UNDER PAN. HE GOT OUT OF THE TRUCK TO PLACE PAN ONTO TRUCK. THE PAN BUMPED THE BACK OF THE TRUCK AND A STONE FELL FROM THE PAN ONTO HIS LEFT LEG.
1999 · 1 incident
EE THOUGHT HE WAS UNCAPPING A WATER VALVE BUT HE WAS ACTUALLY UNCAPPING AN AIR VALVE WITH THE PRESSURE ON. WHEN THE CAP WAS REMOVED, THE PRESSURE JAMMED HIS THUMB.
1996 · 1 incident
TAKING A GEAR MOTOR OFF THE WIRE SAW, FORGOT WHEEL WAS UP AND THE GEAR MOTOR MASHED FINGER RIPPING IT OPEN APPROX. 1/2".
1995 · 2 incidents
PICKED UP ROCK AND PULLED MUSCLE IN LEFT SHOULDER.
EE WAS MAKING A TOOL TO GET PIECE OF STEEL OUT OF GRANITE. HE CUT HIS RIGHT HAND AND HAD TO HAVE 5 STITCHES.
1994 · 1 incident
A JOHN DEERE LOADER CAUGHT FIRE. EMPLOYEE JUMPED OUT AND REAR WEHEEL OF LOADER RAN OVER FOOT AND LEG.
1991 · 2 incidents
CAPPING BLOCK ON HAD HIS FOOT UNDER STONE WHEN HE LET FALL ON R FOOT
INJURED WAS USING A SLEDGE HAMMER TO DRIVE WEDGES ON LEDGE.HE MISSED A WEDGE THE HAMMER HIT THE ROCK AND BOUNCED BACK TO HIS HEAD.
1990 · 3 incidents
LOST HIS BALANCE AND FELL OFF GRANITE LEDGE AROUND 12' BROKE BOTH ANKLES.
HIT ON RIGHT SIDE OF HEAD BY CHAINS USED TO LIFT GRANITE BLOCKS OUT OF QUARRY.
PULLED MUSCLE IN BACK WHILE WORKING ON LEDGE.
1989 · 1 incident
HITTING WITH SLEDGEHAMMER AND HIT 5 WEDGES AND GOT PAIN IN LOWER BACK.
1987 · 1 incident
FELL OFF TRUCK 2EAD FIRST WHILE DODGING ROCK
1986 · 4 incidents
HOOKING DOG ON 9OCK, WHEN HOIST TIGHTENED UP, FINGER WAS UNDER DOG
MAN WAS ON CRAN9 STRICKING A DRIFT PIN WITH A SLEDGE HAMMER. MISSED PIN AND HIT LEG.
RUN-A-WAY CRANE3- HE JUMPED OUT - BROKE RIGHT HEEL
ROCK - CUT HAND3
1984 · 2 incidents
WAS KNOCKED DOWN BY FLYING PIECE OF GRANITE FROM A BROKEN BLOCK THAT FELL TO BOTTOM OF QUARRY.
PIECE OF WEDGE HIT HIS GLASSES.
1983 · 2 incidents
LIGHTING BURNER AT QUARRY-BACKFIRED AND BURNED RIGHT HAND.
WORKING AND FELL ON LEFT SHOULDER DISLOCATING SYSHOULDER.
The full compliance file on Keystone Blue Quarry
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.