2 miners lit their fuse for a face round and then re-entered blast area prior to the mandated 1 hour wait period. When they were within 25 feet of the face, a misfire detonated. This was against company policy and recent training. 1 miner was killed by the blast and the other injured.
Discovery Day Mine: 1 recorded fatality Metal/Non-Metal
Discovery Day Mine has $238K in proposed MSHA penalties and $83K outstanding across 30 contested dockets, plus health sampling and the full incident record.
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Email me when a new MSHA incident is filed at Discovery Day Mine.
- Fatalities
- 1
- Total incidents
- 11
- Years on record
- 1995–2010
- Latest incident
- May 2010
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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.Discovery Day Mine has $238K in proposed MSHA penalties and $83K outstanding across 30 contested dockets.
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Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.- Settled 216 · 85%
- Stood as issued 30 · 12%
- Vacated or withdrawn 8 · 3%
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Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.ⓘ
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| WEST 2011-419M | Settlement | Bulluck | 2011 | $80K → $23K |
| WEST 2011-1086M | Settlement | Bulluck | 2013 | $70K → $46K |
| WEST 2011-543M | Settlement | Manning | 2011 | $30K → $9K |
| WEST 2011-222M | Settlement | Miller | 2012 | $7K → $2K |
| WEST 2011-1219M | Settlement | Bulluck | 2013 | $7K → $4K |
| WEST 2010-1556M | Settlement | Miller | 2011 | $5K → $2K |
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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)
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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: 2007-07-18, 19 years ago
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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.- Quartz, respirable, >1% Qtz8
- Respirable dust, <.1mg5
Show the individual readings (13)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2007-07-18 | Respirable dust, <.1mg | 0 | Mucking Mach. Operator | ||
| 2007-07-18 | Respirable dust, <.1mg | 0 | Cleanup Man | ||
| 2006-09-06 | Quartz, respirable, >1% Qtz | 0.56 | 1.09 | 0.51 | Drill Oper., Jackleg/Stoper |
| 2006-09-06 | Quartz, respirable, >1% Qtz | 0.22 | 1.15 | 0.19 | Utility Man |
| 2006-09-06 | Quartz, respirable, >1% Qtz | 0.24 | 1.68 | 0.14 | Flotation/Concentrator Oper. |
| 2006-09-06 | Quartz, respirable, >1% Qtz | 0.18 | 1.53 | 0.12 | Flotation/Concentrator Oper. |
| 2004-09-22 | Quartz, respirable, >1% Qtz | 0.37 | 0.62 | 0.60 | Crusher Oper/Worker |
| 2004-09-22 | Respirable dust, <.1mg | 0 | Mechanic | ||
| 2004-09-22 | Respirable dust, <.1mg | 0 | Laborer, Bullgang | ||
| 2004-09-22 | Quartz, respirable, >1% Qtz | 0.29 | 0.63 | 0.46 | Laborer, Bullgang |
| 2004-09-22 | Quartz, respirable, >1% Qtz | 0.22 | 0.61 | 0.36 | Lab Technician |
| 2004-09-22 | Respirable dust, <.1mg | 0 | Drill Oper., Jackleg/Stoper | ||
| 2004-09-22 | Quartz, respirable, >1% Qtz | 0.14 | 0.97 | 0.14 | Ball Mill Operator |
- G W Z Management Company Inc 1993 to 2004
- Sky Scientific Mining & Processing Inc 1993 to 1994
- Discovery Day LLC 2004 to 2006
- Merendon Mining (California) Inc 2006 to 2009
- Gold Run Enterprises LLC 2009 to present
| Year | Employees |
|---|---|
| 2013 | 1 |
| 2012 | 2 |
| 2011 | 2 |
| 2010 | 7 |
| 2008 | 6 |
| 2007 | 9 |
| 2006 | 11 |
| 2005 | 2 |
| 2004 | 8 |
Discovery Day Mine sits in Siskiyou County, California, where the Census mining category is 0.2% of county employment.
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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.ⓘ
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 |
|---|---|---|---|---|
| 2013 Q4 | 120 | 0 | 0 | 0.0 |
| 2013 Q3 | 240 | 0 | 0 | 0.0 |
| 2013 Q2 | 120 | 0 | 0 | 0.0 |
| 2013 Q1 | 60 | 0 | 0 | 0.0 |
| 2012 Q4 | 480 | 0 | 0 | 0.0 |
| 2012 Q3 | 500 | 0 | 0 | 0.0 |
| 2012 Q2 | 1,280 | 4 | 0 | 3125.0 |
| 2012 Q1 | 499 | 0 | 0 | 0.0 |
Show 25 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2011 Q4 | 669 | 2 | 0 | 2989.5 |
| 2011 Q3 | 656 | 1 | 0 | 1524.4 |
| 2011 Q2 | 540 | 7 | 3 | 12963.0 |
| 2011 Q1 | 514 | 0 | 0 | 0.0 |
| 2010 Q4 | 665 | 4 | 4 | 6015.0 |
| 2010 Q3 | 405 | 33 | 0 | 81481.5 |
| 2010 Q2 | 2,836 | 69 | 55 | 24330.0 |
| 2010 Q1 | 2,872 | 11 | 3 | 3830.1 |
| 2008 Q1 | 2,109 | 3 | 0 | 1422.5 |
| 2007 Q4 | 3,149 | 0 | 0 | 0.0 |
| 2007 Q3 | 4,117 | 5 | 1 | 1214.5 |
| 2007 Q2 | 3,219 | 4 | 1 | 1242.6 |
| 2007 Q1 | 2,234 | 0 | 0 | 0.0 |
| 2006 Q4 | 3,743 | 11 | 2 | 2938.8 |
| 2006 Q3 | 6,240 | 50 | 17 | 8012.8 |
| 2006 Q2 | 6,767 | 0 | 0 | 0.0 |
| 2006 Q1 | 1,590 | 1 | 0 | 628.9 |
| 2005 Q4 | 480 | 0 | 0 | 0.0 |
| 2005 Q3 | 480 | 2 | 0 | 4166.7 |
| 2005 Q2 | 340 | 4 | 0 | 11764.7 |
| 2005 Q1 | 145 | 0 | 0 | 0.0 |
| 2004 Q4 | 814 | 32 | 7 | 39312.0 |
| 2004 Q3 | 4,837 | 74 | 22 | 15298.7 |
| 2004 Q2 | 3,815 | 0 | 0 | 0.0 |
| 2004 Q1 | 360 | 0 | 0 | 0.0 |
Fatalities at this mine
1 recordedReportable incidents
10 on file (excluding fatalities above)2010 · 1 incident
2 miners lit their fuse for a face round and then re-entered blast area prior to the mandated 1 hour wait period. When they were within 25 feet of the face, a misfire detonated. This was against company policy and recent training. 1 miner was killed by the blast and the other injured.
2007 · 2 incidents
Individual punctured thumb with nail gun while working on a construction project.
Individual smashed index finger while working on a construction project.
2005 · 1 incident
WORKER FELL FROM BACK OF PICKUP TRUCK WHILE UNLOADING HAY BALES. HE LANDED HARD ON DIRT ROAD AND INJURED HIS RIGHT SHOULDER. WORKER DECIDED TO WAIT TO SEE HOW BAD THIS INJURY WAS BEFORE SEEKING MEDICAL ATTENTION.
1996 · 3 incidents
WHILE WORKING ON INTERNATIONAL SERVICE TRUCK, EMP MANUFACTURED A WOODEN STOOL FOR ELEVATION. WOODEN STOOL WAS NOT SEATED ON GROUND PROPERLY. WHEN EMP GOT ON STOOL, GROUND STABILIZATION WAS NOT THERE CAUSING EMP BODY TO SHIFT IN ONE DIRECTIONAND LEGS ANOTHER, CAUSING TORN LIGAMENT OR KNEE INJURY.
EMP WENT TO PROCURE SOME SALVAGABLE EQPMNT ON GODFREY RANCH. SOME OF EQPMNT WAS EXTREMELY HEAVY AND SLIPPED A FEW TIMES WHILE BEING LOADED ON TRUCK CAUSING EMP TO HAVE TO TRY TO STEADY OR PHYS ICALLY ATTEMPT TO PICK UP EQPMNT. EMP HELD STOMACHE A FEW TIMES AFTER LOADING EQPMNT, BUT DIDN'T TELL ME THAT HE HAD HURT HIMSELF AT THAT TIME.
EMPLOYEE SUPPOSEDLY SLIPPED & FELL ON BEHIND - CLAIMS(?) SHOULDER AND BACK INJURY - WE HAVE NOT BEEN NOTIFIED OF ANY INJURY - ARE FILING THIS REPORT AS NOTIFICATION TO MSHA OF POSIBLE INJURY - EMPLOYEE HAS NOT SHOWN FOR WORK SINCE ABOVE DATE
1995 · 3 incidents
A ROCK WAS STUCK IN THE TAILGATE OF DUMP TRUCK. HE THOUGHT HE COULD FREE IT BY HAND. THE ROCK DID COME OUT BUT THE TAILGATE CAUGHT HIS FINGER. PINKY FINGER CUT AND SOUGHT MEDICAL ATTENTION IM MEDIATELY. BACK TO WORK NEXT DAY.
WAS RAKING FOR FIRE BRAKE, DISTURBED UNKNOWN NEST. WAS STUNG TWICE BY YELLOW JACKETS, HAD UNKNOWALLERGIC REACTION. RECEIVED BEE KIT AT HOSPITAL.[FAINTING, VOMITING, DIARERRA]
WHILE STACKING LUMBER AT MILL EMPLOYEE RECEIVED A WOOD SLIVER IN HIS RIGHT HAND.INFECTION DEVELOPED TO SEEK DR CARE DR SURGICALLY OPENED TO DRAIN INFECTION AND IS KEEPING WOUND TO HEAL FROM IN SIDE.