Mining Incidents

GREENHORN PIT & MILL Metal/Non-Metal

Controlled by Jeff Hansen
grass valley, Nevada County, CA  ·  Active
MSHA Mine ID: 0403138

GREENHORN PIT & MILL has $10K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at GREENHORN PIT & MILL.

Fatalities
0
Total incidents
32
Years on record
1983–2022
Latest incident
Dec 2022
Compliance record
MSHA citations since 2000
99
citations
13
significant & substantial
$10,292
proposed penalties
$10,292
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
69
inspections on record
946
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: 946 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

GREENHORN PIT & MILL has $10K 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.
$10K
proposed penalties
$10K
current assessed
$10K
paid to date
$0
outstanding
99 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-04-03.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 6,588 0 0 0.0
2025 Q3 6,473 0 0 0.0
2025 Q2 5,572 1 0 179.5
2025 Q1 4,190 0 0 0.0
2024 Q4 5,488 0 0 0.0
2024 Q3 6,975 0 0 0.0
2024 Q2 6,469 0 0 0.0
2024 Q1 5,818 3 0 515.6
Show 94 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,455 0 0 0.0
2023 Q3 7,372 0 0 0.0
2023 Q2 6,046 4 0 661.6
2023 Q1 5,497 0 0 0.0
2022 Q4 6,436 2 0 310.8
2022 Q3 7,251 1 0 137.9
2022 Q2 6,139 0 0 0.0
2022 Q1 4,634 1 0 215.8
2021 Q4 6,041 0 0 0.0
2021 Q3 6,478 0 0 0.0
2021 Q2 5,953 0 0 0.0
2021 Q1 5,922 0 0 0.0
2020 Q4 5,753 0 0 0.0
2020 Q3 6,462 0 0 0.0
2020 Q2 5,896 0 0 0.0
2019 Q4 7,055 0 0 0.0
2019 Q3 6,776 1 0 147.6
2019 Q2 6,881 0 0 0.0
2019 Q1 4,978 2 0 401.8
2018 Q4 6,302 0 0 0.0
2018 Q3 7,226 0 0 0.0
2018 Q2 6,377 0 0 0.0
2018 Q1 4,799 1 0 208.4
2017 Q4 7,466 1 0 133.9
2017 Q3 8,818 0 0 0.0
2017 Q2 6,033 3 1 497.3
2017 Q1 4,504 0 0 0.0
2016 Q4 6,241 2 0 320.5
2016 Q3 7,560 0 0 0.0
2016 Q2 6,050 2 0 330.6
2016 Q1 4,536 0 0 0.0
2015 Q4 6,103 1 0 163.9
2015 Q3 5,618 2 0 356.0
2015 Q2 5,148 0 0 0.0
2015 Q1 4,809 0 0 0.0
2014 Q3 4,371 1 1 228.8
2014 Q2 4,204 0 0 0.0
2014 Q1 4,322 2 0 462.7
2013 Q4 4,960 0 0 0.0
2013 Q3 4,638 0 0 0.0
2013 Q2 4,299 2 0 465.2
2013 Q1 4,180 0 0 0.0
2012 Q4 4,060 0 0 0.0
2012 Q3 4,424 3 1 678.1
2012 Q2 4,589 0 0 0.0
2012 Q1 4,755 1 0 210.3
2011 Q4 5,073 0 0 0.0
2011 Q3 5,442 0 0 0.0
2011 Q2 4,039 0 0 0.0
2011 Q1 3,827 0 0 0.0
2010 Q4 4,826 0 0 0.0
2010 Q3 4,935 2 0 405.3
2010 Q2 4,715 0 0 0.0
2010 Q1 3,945 0 0 0.0
2009 Q4 4,705 2 0 425.1
2009 Q3 4,307 0 0 0.0
2009 Q2 5,180 0 0 0.0
2009 Q1 4,570 0 0 0.0
2008 Q4 5,773 2 0 346.4
2008 Q3 5,516 0 0 0.0
2008 Q2 5,962 3 0 503.2
2008 Q1 5,611 0 0 0.0
2007 Q4 6,227 5 0 803.0
2007 Q3 7,748 0 0 0.0
2007 Q2 7,142 2 0 280.0
2007 Q1 6,519 0 0 0.0
2006 Q4 8,106 2 0 246.7
2006 Q3 8,239 0 0 0.0
2006 Q2 7,545 2 0 265.1
2006 Q1 5,979 4 1 669.0
2005 Q4 7,241 0 0 0.0
2005 Q3 7,724 0 0 0.0
2005 Q2 7,661 1 0 130.5
2005 Q1 8,175 0 0 0.0
2004 Q4 7,884 2 0 253.7
2004 Q3 9,298 1 0 107.6
2004 Q2 6,737 0 0 0.0
2004 Q1 6,100 0 0 0.0
2003 Q4 8,157 7 1 858.2
2003 Q3 8,855 0 0 0.0
2003 Q2 8,861 0 0 0.0
2003 Q1 8,536 3 1 351.5
2002 Q4 8,697 0 0 0.0
2002 Q3 8,694 0 0 0.0
2002 Q2 7,965 0 0 0.0
2002 Q1 7,474 3 1 401.4
2001 Q4 7,209 2 2 277.4
2001 Q3 9,598 0 0 0.0
2001 Q2 8,874 3 0 338.1
2001 Q1 7,409 0 0 0.0
2000 Q4 8,844 1 0 113.1
2000 Q3 9,026 1 0 110.8
2000 Q2 7,947 13 4 1635.8
2000 Q1 5,431 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

32 on file

2022 · 3 incidents

December 14, 2022 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DUST DISEASE OF LUNGS
Hansen Brothers Enterprises · Inhalation of radiations, caustics, toxic and noxious substances

This minor has been diagnosed with silicosis.

September 7, 2022 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion in pulling or pushing objects

EE was pulling a large jack stand out from under a haul truck when EE felt pain in lower abdomen. EE did not feel EE needed to see a doctor at this point. EE said it was more of a discomfort than pain. On 9/16/22 EE notified supervisor that the injury was getting more uncomfortable. EE was sent to the doctor at this point.

August 25, 2022 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck by falling object

While working under a haul truck a 3/4" ratchet slipped out of the employee's hands, striking the employee in the side of the head as it fell.

2021 · 3 incidents

September 3, 2021 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STRIKING OR BUMPING
Hansen Brothers Enterprises · Struck against stationary object

The miner hit knee on a piece of machinery while walking past it.

February 8, 2021 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

The miner hit the end of the left index finger while driving in a screen tension wedge. This resulted in a laceration on the tip of the finger requiring three sutures.

February 5, 2021 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

The miner suffered from a back strain while bent over replacing belt clips on a conveyor belt. The miner has a history of back issues. EE's back has two vertebras fused from an injury several years ago.

2018 · 1 incident

June 6, 2018 CA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor OTHER
Hansen Brothers Enterprises · Bodily reaction, (Not Elsewhere Classified)

The miner was working on a piece of equipment while in a kneeling position. An air conditioner hose blew near the miner. When this happened the miner jumped up while turning to run from the potential hazard of the hose failing. The sudden twisting of miner's back and running caused a lower back strain.

2016 · 1 incident

September 12, 2016 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion in pulling or pushing objects

Strained a muscle while unloading a tire from a loader bucket.

2014 · 1 incident

January 29, 2014 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Hansen Brothers Enterprises · Flash burns (welding)

The miner received arc flash burn to his eyes. The miner was working with a welder in our welding shop. They were working back to back. The miner received the arc flash from the reflection off the inside of the welding helmet he was wearing.

2011 · 1 incident

June 3, 2011 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hansen Brothers Enterprises · Caught in, under or between a moving and a stationary object

While unloading some loader cutting edges out of a loader bucket the employee smashed his right index finger between a cutting edge and a wood block he was setting them on. This resulted in a laceration to his finger requiring five sutures.

2008 · 1 incident

February 13, 2008 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer EXPLODING VESSELS UNDER PRESSURE
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

A hydraulic hose sprung a leak while the miner had a hold of it. The pressurized oil lacerated the side of his right middle finger.

2007 · 1 incident

February 8, 2007 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck against stationary object

The employee of the contractor was adjusting a return roller on a conveyor on there portable stacking equipment. The wrench slipped off of a bolt while pushing on it causing his arm to make contact with the moving belt and the frame work resulting in a laceration and two broken bones in his right arm. Note: This job has been completed and the contractor will not return.

2006 · 1 incident

February 22, 2006 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

Employee was stripping insulation off of an electrical connection with a utility knife. The knife slipped and cut the the top of his left thumb requiring 6 sutures.

2005 · 5 incidents

October 31, 2005 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Hansen Brothers Enterprises · Fall from scaffolds, walkways, platforms

Employee was walking down a cat walk when he stumbled on a step. He landed on his his left hand and thumb fracturing a bone in his thumb.

October 13, 2005 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

The equipment operator was installing a radiator fan guard after repairs were made to the engine. The operator used poor judgement and attempted installing this guard while the engine was running and made contact with the engine cooling fan. This resulted in a laceration requiring sutures to his right ring finger.

September 2, 2005 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

The operator was carrying items in both hands while climbing into the cab of a scraper. He set his right knee down on one of the steps to keep his blance and then pushed off with that knee to climb in the rest of the way. He felt a sharp pain in his knee when he pushed off. He said the pain quickly went away and he worked the rest of the day.

August 3, 2005 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

While the employee was dismounting a Cat 621 scraper/waterpull he strained his back. Employee stated he was using the proper three point dismounting procedure when the strain occurred.

April 6, 2005 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

Employee walked down a ramp along side of a screen, at the bottom of the ramp is one step down to a platform. When the employee stepped onto the platform his left knee gave out on him. Employee stated there was no material on the platform and he was looking at the platform when he stepped onto it. The doctor diagnosed him with a sprained left knee.

2004 · 2 incidents

November 11, 2004 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion in lifting objects

Strained shoulder while lifting a 6" pump discharge hose.

April 12, 2004 CA · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Caught in, under or between a moving and a stationary object

EE HAD CUT BOTH ENDS OF A 4" X 4" X 3/8" ANGLE IRON CROSSMEMBER APPX. 6'6" LONG WITH A CUTTING TORCH. WHEN THE CROSSMEMBER DID NOT FALL FREE, EE HELD ONE END WITH HIS LEFT HAND & HIT THE OTHER END WITH A HAMMER. THE END HE WAS HOLDING UNEXPECTEDLY FELL FIRST APPROX. 2' TO ANOTHER CROSSMEMBER, SMASHING 2 FINGERS BETWEEN THEM. BROKEN BONES AT THE TIPS OF 2 FINGERS; 10 SUTURES.

2002 · 1 incident

July 13, 2002 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Hansen Brothers Enterprises · Struck against stationary object

WHILE CLEANING PARTS TO A CONE CRUSHER EMPLOYEE SLID HIS FINGER ALONG A SHARP THREAD AND SLICED IT. IT WAS A SMALL CUT NOT REQUIRING SUTURES. HE GAVE HIMSELF FIRST AID (CLEANED & APPLIED BAND AID) AND WENT BACK TO WORK.

2000 · 2 incidents

November 1, 2000 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Hansen Brothers Enterprises · Caught in, under or between a moving and a stationary object

TWO WORKERS WERE CHANGING CUTTING EDGES ON A CAT 633 SCRAPER. INJURED WAS LAYING ON A CREEPER REMOVING BOLTS FROM THE CENTER EDGE. CO-WORKER WAS MOVING A SIDE EDGE OUT OF THE WAY. WHEN HE HEAR D THE EDGE HIT THE GROUND, HE TURNED AND FOUND INJURED'S RIGHT ARM PINNED UNDER THE CUTTING EDGE. HE REMOVED THE EDGE.

September 6, 2000 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

THE MINER CAME TO THE PLANT MGR. INDICATING THAYT HE PULLED SOMETHING IN HIS STOMACH AREA WHILE REMOVING STICKS FROM A CONVEYOR BELT. THE INJURY OCCURRED IN THE SAME AREA AS A RECENT GALLBLADD ER OPERATION. HE WAS SENT TOTHE DOCTOR TOHAVE IT CHECKED OUT.

1999 · 2 incidents

July 22, 1999 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck against stationary object

WHILE HAMMERING ON A CONVEYOR RETURN ROLL TO REMOVE BUILD UP MATERIAL ON THE ROLL THE TOP OF HIS RT WRIST MADE CONTACT WITH THE CONVEYOR BELT CAUSING AN ABRAISON. THE ABRASION BECAME INFECTED THREE DAYS LATER AND THE EE WAS SENT TO THE DR FOR TREATMENT.

July 2, 1999 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

WHILE SHOVLEING MATERIAL OFF OF A PLATFORM HE HIT THE BAK OF HIS HAND AGAINST A HAND RAIL. THIS IRRITATED AN UNKNOWN CYST AND CAUSED IT TO SWELL. THE INJURY WAS NOT REPORTED TO HIS SUPERVISOR FOR APPR ONE WEEK AFTER THE INCIDENT. THE EE WASTO THE DR UPON MOTIFICATION.

1998 · 1 incident

May 28, 1998 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Hansen Brothers Enterprises · Fall to the walkway or working surface

EMPLOYEE HAD BEEN ASSISTING IN SMALL LOGGING/CHOKE SETTING OPERATION. SEVERAL LOGS HAD BEEN STACKED ONTO ONE ANOTHER, AND EMPLOYEE WAS STEPPING DOWN OFF OF LOG STACK. AS EMPLOYEE STEPPED ONTO BOTTOM-MOST LOG, HE STEPPED ONTO A SECTION OF THE LOG WITH NO BARK. THE LOGS WERE ALSO SLIPPERY DUE TO RAIN WEATHER. EMPLOYEE SLIPPED AND LANDED WITH RIGHT LEG BENEATH HIM INJURING RIGHT KNEE.

1997 · 2 incidents

November 13, 1997 CA · Metal/Non-Metal mine manager, mine foreman, mine owner POWERED HAULAGE
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

EE WAS REPAIRING HOSES IN THE RADIATOR SYSTEM OF LOADER. THE LOADER ENGINE WAS STARTED AFTER THE HOSES WERE CONNECTED. EE REACHED INTO ENGINE COMPARMENT TO SECURE A HOSE WHILE ENGINE WAS RUNNI NG. RIGHT HAND SLIPPED OFF HOSE WHILE PULLING CAUSING HAND TO HIT ENGINE FAN. EE WAS IN VILATION OF SAFE WORKING PRACTICES AND INJURY ILLNESS PREV. PROGRAM. EE WAS ALSO COMPLACENT AND DID NOT

October 30, 1997 CA · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Hansen Brothers Enterprises · Struck by falling object

WHEN EE AND ANOTHER EE PULLED A PALLET OUT FROM UNDER SOME BUCKET CUTTING EDGES, THE EDGES FELL DOWN ON EE'S RT FOOT, SMASHING HIS BIG TOE NEXT TO IT.

1996 · 1 incident

January 2, 1996 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Hansen Brothers Enterprises · Contact with hot objects or substances

BURNED LEFT HAND WITH CUTTING TORCH WHILE PERFORMING MAINTENANCE ON PLANT.

1987 · 2 incidents

December 16, 1987 CA · Metal/Non-Metal grader operator, roadgrader operator SLIP OR FALL OF PERSON
Hansen Brothers Enterprises · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS RU3NING A ROAD GRADER.WHILE GETTING OFF OF GRADER HE SLIPPED ON A WET TIRE.HE CAUGHT HIMSELF INSTEAD IF FALLING.HE COULD NOT STRAIGHTEN UP.HE COMPLETED REST OF SHIFT BEFORE GOING TO DOCTOR. 3

November 4, 1987 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Hansen Brothers Enterprises · Fall down stairs

EMPLOYEE WAS SH2VELING DIRT OFF A CONVEYOR BELT WALKING BACKWARDS RAPIDILY HE STEPPED OFF OF THE WALKWAY BACKWARDS FALLING 2 OR 3 STEPS CATCHING HIMSELF WITH HIS ARMS ON THE HAND RAIL

1983 · 1 incident

June 7, 1983 CA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDLING OF MATERIALS
Hansen Brothers Enterprises · Struck by... (Not Elsewhere Classified)

PUTTING CHOCKER ON HEAVY PIECE OF IRON. IRON SLIPPED HITTING FINGER.

For insurers, brokers, and safety consultants

The full compliance file on GREENHORN PIT & MILL

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.