Independent hauler was experiencing symptoms of a heart attack and called EMS. EMS transported the hauler to the hospital. The MSHA investigator requested an MSHA 7000-1 be completed.
Corona Plant Metal/Non-Metal
Corona Plant has $15K in proposed MSHA penalties and $165 outstanding across 2 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 31
- Years on record
- 1991–2020
- Latest incident
- Oct 2020
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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.Corona Plant has $15K in proposed MSHA penalties and $165 outstanding across 2 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 | 17,833 | 0 | 0 | 0.0 |
| 2025 Q3 | 20,830 | 0 | 0 | 0.0 |
| 2025 Q2 | 21,236 | 0 | 0 | 0.0 |
| 2025 Q1 | 18,828 | 1 | 0 | 53.1 |
| 2024 Q4 | 22,939 | 0 | 0 | 0.0 |
| 2024 Q3 | 23,220 | 1 | 0 | 43.1 |
| 2024 Q2 | 23,983 | 0 | 0 | 0.0 |
| 2024 Q1 | 20,436 | 2 | 0 | 97.9 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 19,782 | 0 | 0 | 0.0 |
| 2023 Q3 | 19,456 | 1 | 1 | 51.4 |
| 2023 Q2 | 18,424 | 0 | 0 | 0.0 |
| 2023 Q1 | 11,848 | 0 | 0 | 0.0 |
| 2022 Q4 | 19,841 | 3 | 1 | 151.2 |
| 2022 Q3 | 19,434 | 0 | 0 | 0.0 |
| 2022 Q2 | 18,981 | 0 | 0 | 0.0 |
| 2022 Q1 | 22,056 | 0 | 0 | 0.0 |
| 2021 Q4 | 19,218 | 1 | 0 | 52.0 |
| 2021 Q3 | 20,400 | 1 | 0 | 49.0 |
| 2021 Q2 | 22,557 | 0 | 0 | 0.0 |
| 2021 Q1 | 19,462 | 0 | 0 | 0.0 |
| 2020 Q4 | 18,877 | 1 | 0 | 53.0 |
| 2020 Q3 | 21,159 | 0 | 0 | 0.0 |
| 2020 Q2 | 19,991 | 0 | 0 | 0.0 |
| 2020 Q1 | 22,237 | 0 | 0 | 0.0 |
| 2019 Q4 | 22,991 | 1 | 1 | 43.5 |
| 2019 Q3 | 25,911 | 0 | 0 | 0.0 |
| 2019 Q2 | 26,002 | 0 | 0 | 0.0 |
| 2019 Q1 | 21,142 | 0 | 0 | 0.0 |
| 2018 Q4 | 23,665 | 0 | 0 | 0.0 |
| 2018 Q3 | 24,084 | 0 | 0 | 0.0 |
| 2018 Q2 | 23,048 | 0 | 0 | 0.0 |
| 2018 Q1 | 22,953 | 0 | 0 | 0.0 |
| 2017 Q4 | 21,456 | 0 | 0 | 0.0 |
| 2017 Q3 | 21,186 | 1 | 0 | 47.2 |
| 2017 Q2 | 17,990 | 0 | 0 | 0.0 |
| 2017 Q1 | 18,982 | 2 | 0 | 105.4 |
| 2016 Q4 | 18,818 | 0 | 0 | 0.0 |
| 2016 Q3 | 21,770 | 0 | 0 | 0.0 |
| 2016 Q2 | 20,765 | 0 | 0 | 0.0 |
| 2016 Q1 | 22,083 | 1 | 0 | 45.3 |
| 2015 Q4 | 21,592 | 0 | 0 | 0.0 |
| 2015 Q3 | 22,680 | 0 | 0 | 0.0 |
| 2015 Q2 | 21,229 | 1 | 0 | 47.1 |
| 2015 Q1 | 21,645 | 0 | 0 | 0.0 |
| 2014 Q4 | 18,032 | 0 | 0 | 0.0 |
| 2014 Q3 | 19,541 | 0 | 0 | 0.0 |
| 2014 Q2 | 19,787 | 0 | 0 | 0.0 |
| 2014 Q1 | 18,526 | 0 | 0 | 0.0 |
| 2013 Q4 | 15,772 | 2 | 2 | 126.8 |
| 2013 Q3 | 16,776 | 0 | 0 | 0.0 |
| 2013 Q2 | 17,987 | 0 | 0 | 0.0 |
| 2013 Q1 | 15,546 | 0 | 0 | 0.0 |
| 2012 Q4 | 14,922 | 0 | 0 | 0.0 |
| 2012 Q3 | 15,971 | 0 | 0 | 0.0 |
| 2012 Q2 | 17,267 | 1 | 0 | 57.9 |
| 2012 Q1 | 16,021 | 0 | 0 | 0.0 |
| 2011 Q4 | 14,915 | 0 | 0 | 0.0 |
| 2011 Q3 | 16,598 | 1 | 0 | 60.2 |
| 2011 Q2 | 15,229 | 0 | 0 | 0.0 |
| 2011 Q1 | 14,976 | 0 | 0 | 0.0 |
| 2010 Q4 | 14,206 | 1 | 0 | 70.4 |
| 2010 Q3 | 16,827 | 0 | 0 | 0.0 |
| 2010 Q2 | 16,449 | 0 | 0 | 0.0 |
| 2010 Q1 | 17,319 | 2 | 2 | 115.5 |
| 2009 Q4 | 17,891 | 0 | 0 | 0.0 |
| 2009 Q3 | 18,500 | 0 | 0 | 0.0 |
| 2009 Q2 | 21,742 | 1 | 0 | 46.0 |
| 2009 Q1 | 21,796 | 0 | 0 | 0.0 |
| 2008 Q4 | 21,608 | 0 | 0 | 0.0 |
| 2008 Q3 | 23,053 | 0 | 0 | 0.0 |
| 2008 Q2 | 22,627 | 1 | 0 | 44.2 |
| 2008 Q1 | 22,526 | 3 | 0 | 133.2 |
| 2007 Q4 | 22,787 | 0 | 0 | 0.0 |
| 2007 Q3 | 25,818 | 4 | 0 | 154.9 |
| 2007 Q2 | 21,492 | 0 | 0 | 0.0 |
| 2007 Q1 | 17,562 | 0 | 0 | 0.0 |
| 2006 Q4 | 16,812 | 2 | 0 | 119.0 |
| 2006 Q3 | 18,726 | 20 | 1 | 1068.0 |
| 2006 Q2 | 18,515 | 0 | 0 | 0.0 |
| 2006 Q1 | 18,111 | 2 | 0 | 110.4 |
| 2005 Q4 | 17,575 | 0 | 0 | 0.0 |
| 2005 Q3 | 20,054 | 0 | 0 | 0.0 |
| 2005 Q2 | 19,156 | 1 | 0 | 52.2 |
| 2005 Q1 | 15,856 | 0 | 0 | 0.0 |
| 2004 Q4 | 16,699 | 2 | 0 | 119.8 |
| 2004 Q3 | 16,742 | 0 | 0 | 0.0 |
| 2004 Q2 | 17,424 | 4 | 0 | 229.6 |
| 2004 Q1 | 15,086 | 1 | 0 | 66.3 |
| 2003 Q4 | 16,684 | 0 | 0 | 0.0 |
| 2003 Q3 | 17,548 | 0 | 0 | 0.0 |
| 2003 Q2 | 15,617 | 0 | 0 | 0.0 |
| 2003 Q1 | 14,852 | 1 | 0 | 67.3 |
| 2002 Q4 | 14,566 | 0 | 0 | 0.0 |
| 2002 Q3 | 14,568 | 1 | 0 | 68.6 |
| 2002 Q2 | 14,849 | 2 | 0 | 134.7 |
| 2002 Q1 | 14,904 | 0 | 0 | 0.0 |
| 2001 Q4 | 17,411 | 0 | 0 | 0.0 |
| 2001 Q3 | 19,295 | 0 | 0 | 0.0 |
| 2001 Q2 | 19,124 | 3 | 0 | 156.9 |
| 2001 Q1 | 15,057 | 0 | 0 | 0.0 |
| 2000 Q4 | 14,447 | 0 | 0 | 0.0 |
| 2000 Q3 | 6,922 | 0 | 0 | 0.0 |
| 2000 Q2 | 7,840 | 35 | 8 | 4464.3 |
| 2000 Q1 | 12,923 | 0 | 0 | 0.0 |
Reportable incidents
31 on file2020 · 1 incident
2014 · 1 incident
The employee sustained 2nd degree burns. The employee was using a cutting torch to cut a one inch thick steel plate on a fabrication table. The slag from the cutting bounced off of the table and ignited the employee's shirt resulting in 2nd degree burns to the left side of the abdomen. The employee was placed restricted duty on 11/5/14 which is being accommodated.
2009 · 1 incident
On 5/25/09 A trespasser/Non-Employee was fatally injured from an apparent fall from elevation. The trespasser/Non-Employee's death occurred in route to the hospital.
2008 · 1 incident
The employee went to the company clinic on 9/3/08 and was placed on restricted duty. A porta-power disconnect fitting came apart when pressurised and struck employee on his safety glasses, resulting in a corneal abrasion and contusion to R-eye.
2006 · 1 incident
The employee went to see the company doctor on 6/7/2006 and was placed on restricted duty. The employee strained his lower back while lifting and carrying buckets during crusher sampling
2004 · 1 incident
Employee went to see company doctor on 8/21/04 and was placed on restricted duty. Employee was placing various tools in a pile, wrench, screwdrivers, etc. and strained his lower back.
2003 · 2 incidents
WHILE CUTTING BOLTS FROM DISCHARGE LIP WITH OXY-ACETYLEN TORCH. SLAG FELL ONTO CHUTE LINER CAUSING FIRE WHICH RESULTED IN PROPERTY DAMAGE.
EMULSION HOSE BECAME LODGED IN BOREHOLE. EE JERKED ON HOSE TO FREE IT AND HEARD POP IN HIS LOWER BACK.
2002 · 1 incident
EE WAS USING A 20# SLEDGEHAMMER & KNOCKER WRENCH TO TIGHTEN JAW BOLTS; THE HAMMER WAS DEFLECTED CAUSING IT TO MISS THE WRENCH STRIKING FINGER CAUSING A FRACTURE & LACERATION TO L-INDEX FINGER. EE WENT TO SEE COMPANY DR ON 3/13/02 & WAS PLACED ON RESTRICTED DUTY.
2001 · 2 incidents
EMPLOYEE WENT TO CLINIC ON 9/29/01 AND WAS RETURNED TO FULL DUTY AND RECEIVED PRESCRIPTION AND MEDICATION. EMPLOYEE WAS WELDING ON EXCAVATOR BUCKET WHEN HE RECEIVED FLASH BURN TO BOTH EYES.
EMPLOYEE WAS USING A KNIFE, CUTTING LEG OF SCREEN PANEL, PULLING KNIFE TOWARDS BODY AND KNIFE CONTACTED LEFT WRIST. EMPLOYEE WENT TO SEE DOCTOR ON 6-22-01, RECEIVED STITCHES AND WAS PLACED ON RESTRICTED DUTY.
1999 · 1 incident
EXITING CRANE CAB, EE SLIPPED ON OIL GETTING OFF CRANE AND HURT HIS BACK.
1998 · 3 incidents
EE CUTTING METAL WITH A TORCH WHEN HOSE CAME OFF CUASING BURNS TO LOWER LEFT ARM & ABDOMEN AREA
EE WAS CUTTING TAPE OFF BOARD HOLDING BOARD WITH LEFT HAND AND HOLDING KNIFE WITH RIGHT HAND. KNIFE SLIPED, POINT OF KNIFE ENTERED LEFT HAND BETWEEN INDEX AND MIDDLE KNUCKLE.
EE WAS TRYING TO REMOVE LODGED ROCK FROM CONVEYOR WHEN HE SLIPPED AND SPRAINED HIS RIGHT ARM.
1997 · 2 incidents
EMPLOYEE WAS STANDING NEXT TO A CO-WORKER THAT WAS WELDING AND RECEIVED FLASH BURN IN HIS EYES.
EE WAS CHOPPING WEEDS AROUND EXPLOSIVE MAGAZIE WHEN A BEE STUNG HIS RIGHT LOWER ARM/
1996 · 3 incidents
EMPLOYEE WAS OPENING A HEAVY WOODEN DOOR ON A STORAGE SHED AND HIS FINGER WAS CAUGHT BETWEEN THE DOOR AND A STEEL DOOR HASP (LOCK). THE WEIGHT OF THE DOOR CAUSED THE HASP TO PINCH HIS FINGER.
WHILE ATTEMPTING TO EXTRACT A VALVE BODY THAT WAS IN AN AWKWARD POSITION, STRAINED RIGHT SHOULDER.
EMP WAS UP ON DUST SILO SHUTTING OFF VALVE WHEN THE AIR LINE BROKE BLOWING DUST PARTICLES INTO HIS FACE AND EYES.
1995 · 4 incidents
WHILE EE WAS CUTTING BROKEN ADAPTOR OFF CAT WITH TORCH, HE WAS HIT BY CHEST PAINS.
EMPLOYEE WAS WELDING IN ROCK HOPPER USING AIR CHIPPER AND THE AIRBORNE DUST FROM THE CHIPPER FLEW INTO HIS RIGHT EYE.
EMPLOYEE WAS REMMOVING A ROCK A B-1 (OVERSIZE), THE CHAIN COME-A-LONG (3/4TON) CAME LOOSE LANDING ON EMPLOYEE'S FINGER CUTTING IT.
WHILE ATTEMPTING TO REMOVE ROCK FROM JAMMED CHUTE, A ROCK BECAME LOOSE DROPPING FROM THE FEEDER AREA ONTO EE'S LEFT INDEX FINGER, CUTTING IT.
1994 · 3 incidents
EE WAS REMOVING WEAR SEGMENTS FROM 988B BUCKET WITH A 1" IMPACT AIR GUN. THE PLOW BOLT FELL OUT OF KEYED SLOT AND STARTED SPINING WHICH CUT HIS ARM (WRIST).
EE WAS HOLDING A STEEL PLATE IN PLACE WHILE ANOTHER EE WAS WELDING, HIS ELBOW HIT THE WELDING TORCH CAUSING OXYGEN TO ESCAPE FROM THE WELDING SPARKS. THIS CAUSED THE TORCH TO BURN HIS LEFT ARM .
EMPLOYEE WAS CHECKING OUT A BROKEN SHAFT ON A FINISH SCREEN. WHEN HE CRAWLED OUT HE SLIPPED ON ROCKS ON BELT AND CAUGHT HIMSELF ON THE SCREEN WITH HIS LEFT ARM TO KEEP HIMSELF FROM FALLING AND PULLED MUSCLES IN HIS LEFT ARM.
1993 · 2 incidents
TIGHTENING CHAIN COME-ALONG ON DOZER TRACK WHEN STRUCK INBACK WITH FALLING CHAIN (END OF CHAIN-HOOK)
WHILE LIFTING ROCKS OUT OF TH EJAW CRUSEHR (WHICH WAS PLUGGED) EMPLOYEE PULLED MUSCLE IN LOWER BACK.
1992 · 1 incident
NO INJURIES. BRUSH FIRE OF UNKNOWN ORIGIN STARTED ON COMPANY PROPERTY. FIRE DEPARTMENT RESPONDED. NO ACCESS TO FIRE AREA. FIRE ALLOWED TO BURN ITSELF OUT AFTER FIRE BREAKS WERE CUT WITH COMPAN Y BULLDOZER.
1991 · 1 incident
FINISHING HOLE REACHING DRILL CONTROLS STRUCK ON R CALF BY ROCK ROLLED DOWN THE SLOPE
The full compliance file on Corona Plant
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.