Mining Incidents

Star Pit #1 Metal/Non-Metal

JTL Group, Inc. · Surface
Controlled by Knife River Corporation
Cheyenne, Laramie County, WY  ·  Active
MSHA Mine ID: 4801383

Star Pit #1 has $54K in proposed MSHA penalties and $0 outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
25
Years on record
1988–2023
Latest incident
Mar 2023
Compliance record
MSHA citations since 2001
150
citations
19
significant & substantial
$53,662
proposed penalties
$38,165
paid to date
71% of proposed penalties paid to date, a $15,497 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
53
inspections on record
990
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: 990 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Star Pit #1 has $54K in proposed MSHA penalties and $0 outstanding across 4 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.
$54K
proposed penalties
$38K
current assessed
$38K
paid to date
$0
outstanding
149 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2025-11-06.
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 8,525 5 2 586.5
2025 Q3 11,706 3 0 256.3
2025 Q2 9,574 0 0 0.0
2025 Q1 4,998 4 0 800.3
2024 Q4 6,017 0 0 0.0
2024 Q3 9,105 0 0 0.0
2024 Q2 7,805 5 0 640.6
2024 Q1 4,785 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 6,189 9 0 1454.2
2023 Q3 6,184 2 0 323.4
2023 Q2 6,945 0 0 0.0
2023 Q1 2,847 6 0 2107.5
2022 Q4 5,260 0 0 0.0
2022 Q3 8,502 3 0 352.9
2022 Q2 9,099 0 0 0.0
2022 Q1 6,024 7 0 1162.0
2021 Q4 8,019 0 0 0.0
2021 Q3 9,148 5 2 546.6
2021 Q2 8,060 9 0 1116.6
2021 Q1 2,713 0 0 0.0
2020 Q4 5,769 6 0 1040.0
2020 Q3 9,579 0 0 0.0
2020 Q2 8,780 1 0 113.9
2020 Q1 4,627 0 0 0.0
2019 Q4 5,455 7 2 1283.2
2019 Q3 8,058 0 0 0.0
2019 Q2 7,245 2 1 276.1
2019 Q1 4,571 0 0 0.0
2018 Q4 4,320 1 0 231.5
2018 Q3 5,582 3 0 537.4
2018 Q2 8,542 0 0 0.0
2018 Q1 4,519 0 0 0.0
2017 Q4 4,032 0 0 0.0
2017 Q3 5,966 1 0 167.6
2017 Q2 6,724 0 0 0.0
2017 Q1 3,409 0 0 0.0
2016 Q4 3,979 0 0 0.0
2016 Q3 8,856 0 0 0.0
2016 Q2 7,840 5 1 637.8
2016 Q1 3,072 0 0 0.0
2015 Q4 3,241 0 0 0.0
2015 Q3 4,004 0 0 0.0
2015 Q2 7,773 0 0 0.0
2015 Q1 3,314 2 0 603.5
2014 Q4 5,673 0 0 0.0
2014 Q3 6,846 0 0 0.0
2014 Q2 7,440 0 0 0.0
2014 Q1 2,454 3 0 1222.5
2013 Q4 4,646 0 0 0.0
2013 Q3 7,597 0 0 0.0
2013 Q2 7,532 0 0 0.0
2013 Q1 4,322 0 0 0.0
2012 Q4 3,476 4 0 1150.7
2012 Q3 9,708 11 0 1133.1
2012 Q2 9,995 1 0 100.1
2012 Q1 927 0 0 0.0
2011 Q4 4,659 0 0 0.0
2011 Q3 8,522 1 0 117.3
2011 Q2 5,400 6 1 1111.1
2011 Q1 1,541 2 0 1297.9
2010 Q4 4,247 0 0 0.0
2010 Q3 9,480 0 0 0.0
2010 Q2 9,246 4 0 432.6
2010 Q1 2,906 0 0 0.0
2009 Q4 5,198 0 0 0.0
2009 Q3 9,790 2 1 204.3
2009 Q2 6,290 0 0 0.0
2009 Q1 1,578 0 0 0.0
2008 Q4 3,700 0 0 0.0
2008 Q3 6,158 0 0 0.0
2008 Q2 6,181 0 0 0.0
2008 Q1 2,148 2 0 931.1
2007 Q4 4,577 0 0 0.0
2007 Q3 12,057 0 0 0.0
2007 Q2 10,434 0 0 0.0
2007 Q1 3,874 0 0 0.0
2006 Q4 7,374 7 2 949.3
2006 Q3 8,949 1 1 111.7
2006 Q2 8,480 0 0 0.0
2006 Q1 5,488 0 0 0.0
2005 Q4 8,882 0 0 0.0
2005 Q3 9,598 0 0 0.0
2005 Q2 9,227 0 0 0.0
2005 Q1 5,023 0 0 0.0
2004 Q4 8,353 0 0 0.0
2004 Q3 12,312 5 0 406.1
2004 Q2 9,443 0 0 0.0
2004 Q1 5,648 0 0 0.0
2003 Q4 8,457 0 0 0.0
2003 Q3 7,554 0 0 0.0
2003 Q2 7,225 7 3 968.9
2003 Q1 2,536 3 1 1183.0
2002 Q4 8,714 0 0 0.0
2002 Q3 11,616 1 1 86.1
2002 Q2 10,176 3 1 294.8
2002 Q1 6,132 0 0 0.0
2001 Q4 9,400 0 0 0.0
2001 Q3 10,915 1 0 91.6
2001 Q2 7,726 0 0 0.0
2001 Q1 2,384 0 0 0.0
2000 Q4 5,748 0 0 0.0
2000 Q3 5,714 0 0 0.0
2000 Q2 8,349 0 0 0.0
2000 Q1 7,382 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

25 on file

2023 · 1 incident

March 16, 2023 WY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
JTL Group, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was running on mine surface and rolled right ankle. Employee is unsure exactly what happened to cause the ankle to roll.

2021 · 1 incident

July 2, 2021 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
JTL Group, Inc. · Caught in, under or between a moving and a stationary object

Employee was standing beside cone crusher after assisting to push some material through it with a frost bar. Another employee went around the crusher to manually open the cone further. Employee still by cone got right foot caught in pinch point. Employee suffered tendon damage and a broken heel as well as a laceration.

2020 · 1 incident

September 24, 2020 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
JTL Group, Inc. · Struck by... (Not Elsewhere Classified)

Employee was cutting rubber belting material with a razor blade knife. Employee was pulling knife towards self when it slipped out of the rubber material and EE hit EE's upper left leg with the blade. Employee received a laceration approximately 1 inch deep and 1 1/2 inches long. Employee received sutures to close the wound. Minimal impairment.

2017 · 1 incident

August 29, 2017 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
JTL Group, Inc. · Struck by... (Not Elsewhere Classified)

Employee was chipping hardened soil from the flange of a stacker inlet so that the flange could be changed. Employee was using a spud bar in a standing position above the inlet. On downward stroke spud bar hit rubber belting and bounced back up causing a small laceration above employees right eye. Employee was taken to medical clinic and received 7 sutures to close the laceration.

2016 · 1 incident

October 8, 2016 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
JTL Group, Inc. · Struck by... (Not Elsewhere Classified)

Employee and another employee were loading screen that were to be lifted up to the screen deck of a gravel crusher. While lifting the screen a sharp edge cut through the employees leather glove and left a laceration on left index finger on the second knuckle. Employee did receive medical treatment and four stitches to close the laceration.

2015 · 1 incident

March 11, 2015 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
JTL Group, Inc. · Struck by... (Not Elsewhere Classified)

A miner, engaged in crusher maintenance, was cutting a rubber conveyor belt with a razor knife in order to patch it. He was holding the knife in his right hand when the knife slipped out of the rubber material and back at him. The miner stabbed the palm of his left hand with the knife. Damage was limited to a small laceration.

2011 · 1 incident

July 26, 2011 WY · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
JTL Group, Inc. · Struck by falling object

A pieces of flattened expanded metal slipped out of the employees hand struck him in the leg puncturing his left thigh in two places which required stitches.

2009 · 1 incident

August 8, 2009 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
JTL Group, Inc. · Struck by... (Not Elsewhere Classified)

Cleaning off a metal plate without gloves on and cut hand.

2007 · 2 incidents

July 13, 2007 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Star Aggregates Inc · Struck against a moving object

Employee was running the dozer on grade, encountered ruts and jarred his back. Back became stiff over the weekend requiring employee to seek Chiropractic medical attention beginning 7/16/2007.

April 19, 2007 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Star Aggregates Inc · Fall from machine

Very strong winds on that day, with gusts in excess of 60 mph. Mechanic was hooking up airlines on water tanker truck when the wind blew him off of the truck. Jarring back and neck when landing on ground. Back & neck where stiff, but didn't require immediate medical attention. Receiving Chiropractic treatments.

2006 · 1 incident

June 20, 2006 WY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Star Aggregates Inc · Struck by... (Not Elsewhere Classified)

Employee was cutting drive blets on standard cone with a utility knife. He slipped and cut his right forearm. Cut required three stiches.

2005 · 2 incidents

July 19, 2005 WY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Star Aggregates Inc · Fall onto or against objects

Employee strained his back. Employee was standing in chute, pulling on belting. He slipped on rock in chute and fell forward into front part of chute and twisted his back.

April 15, 2005 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Star Aggregates Inc · Struck by powered moving object

Employee was walking to car for lunch, scraper was headed to fill bin at same time. Both saw each other at same time. Both went right and then turned to left. Employee jumped away. Right front scraper tire ran over his right leg and left foot. Safety glasses broke, laceration on face. Bruising, swelling, abrasions, full extent of leg injuries not known at this time.

2004 · 2 incidents

September 1, 2004 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Star Aggregates Inc · Caught in, under or between a moving and a stationary object

Employee was unloading metal screens from supplier's truck. He had his fingers through the openings in the screen when the supplier's employee let go of the screens. The screens slid down the truck pinching his finger and bending it sideways.

August 31, 2004 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Star Aggregates Inc · Struck by... (Not Elsewhere Classified)

While using a sledge hammer employee missed the washer screw paddle. Sledge hit his right index finger smashing onto framework of wash plant. Fracturing right index finger.

2002 · 3 incidents

September 10, 2002 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Star Aggregates Inc · Bodily reaction, (Not Elsewhere Classified)

WHILE MOVING &/OR BENDING TO PICK UP A LARGE ROCK OFF OF A CONVEYOR BELT, EE HEARD A POP IN HIS UPPER BACK. HE DID NOT ACTUALLY PICK UP THE ROCK HE WAS JUST MOVING/BENDING TO REACH FOR ROCK.

May 3, 2002 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Star Aggregates Inc · Struck by... (Not Elsewhere Classified)

WHILE DISLODGING MATERIAL WITH A METAL TAMPING BAR, THE BAR SLIPPED AND HIT HIS FOOT CUTTING HIS LARGE TOE.

January 15, 2002 WY · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Star Aggregates Inc · Struck by... (Not Elsewhere Classified)

CHANGING GEAR BOX ON 10' TRANSFER BELT, THE GEAR BOX SMASHED HIS MIDDLE FINGER. HE PULLED BACK AND HIT HIS ELBOW ON A PIECE OF ANGLE IRON. AT THE TIME HE THOUGHT IT WAS NOT INJURED BAD ENOUGH TO REPORT AS WORK RELATED INNJUGY. HIS ELBOW CONTINUED TO HURT, HE SOUGHT MEDICAL ATTENTION IN APRIL. REPORTED TO EE AS A WORK RELATED INJURY 5-2-02. COMPLETED CO INJURY REPORT BUT DOES NOT WA

2001 · 1 incident

September 12, 2001 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Star Aggregates Inc · Struck against stationary object

WHILE CHANGING SCREENS, EMPLOYEE WAS TIGHTENING A BOLT. THE RATCHET SLIPPED CAUSING HIS RIGHT ELBOW TO HIT 2 SMALL BOLTS BRUISING IT. AT E.R DOCTOR ADVISED WORK FOR ONE WEEK, IMMOBILIZED ELBOW & PUT ARM IN A SLING. TYLENOL AS NEEDED FOR PAINONE WEEK LATER HIS HAND WAS SHAKING SO INDEFINITE RETURN TO WORK DATE.

2000 · 1 incident

November 15, 2000 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Star Aggregates Inc · Struck by falling object

A FROZEN CHUNK OF GRAVEL FELL FROM TOP OF TRAP THE FROZEN CHUNK HIT EE IN BACK OF HEAD, KNOCKING HIM UNCONSCIOUS. THE FROZEN CHUNK FELL APPROX15 FT EE RECOVERED CONSCIOUNESS QUICLY REFUSED IMMEDIATE MED ATTENTION BUT DID GO HOM WHERE HE LATER DECIDED TO SEEK MED ATTENTION SLIGHT CONCUSSION

1999 · 1 incident

October 1, 1999 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Star Aggregates Inc · Fall from machine

AFTER FIRST START UP THE TRAP PLUGGED AND THEY HAD TO SHUT DOWN, CLEAN OUT AND RESTART. UPON RESTART THE ALARM WAS SOUNDED AND A CHECK FOR ALL CLEAR SIGNAL WAS DONE. THERE WAS A MISCOMMUNICATI ON RECEIVING ALL CLEAR. EE WAS STANDING ON BELT WHEN RESTARTED. HE LOST FOOTING AND FELL TO THE GROUND. LANDING ON LARGE ROCK JUST REMOVED ON THE BACK OF HIS HEAD, NECK, SHOULDER AND LEFT SID

1998 · 1 incident

May 26, 1998 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Star Aggregates Inc · Struck by falling object

WHILE CHANGING CONVEYOR BELTING, BELTING FELL APPROX. 6 FEET LANDING ON RIGHT SHIN AND ANKLE.

1991 · 1 incident

October 25, 1991 WY · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDTOOLS (NONPOWERED)
Star Aggregates Inc · Caught in, under or between (Not Elsewhere Classified)

HE WAS BARIN GOUT CLAY MATERIAL FROM CONE CRUSHER WHEN BAR GOT CAUGHT SLAMMING HIS RIGHT HAND AGAINST CONE BASKE.T SMASHED RIGHT HAND BY POINTER FINGER KNUCKLE, LACERATING HAND. REQUIRING ME IDCAL TREATMENT APPLYING STAPLE SUTURES TO HAND AND BANDAGES.

1989 · 1 incident

September 1, 1989 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Star Aggregates Inc · Struck by flying object

HE WAS DOING GENERAL LABOR DUTIES AROUND THE CRUSHER WHEN THE WIND BLEW DIRT AND METAL SHAVING IN HIS EYE.

1988 · 1 incident

September 6, 1988 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Star Aggregates Inc · Caught in, under or between a moving and a stationary object

I NAME WAS CLEANING AROUND A CONVEYOR BELT WHEN HE NOTICED AN OVERSIZED ROCK WAS CAUGHT BETWEEN THE BELTING AND FRAMEWORK. HE THEN DECIDED TO TRY TO REMOVE THE ROCK WITHOUT SHUTTING OFF THE BE LT. IN DOING SO HE TRAPPED HIS HAND BETWEEN THE ROCK AND FRAMEWORK HE INSTINCTIVELY PULLED HIS HAND CUTTING THE LEFT MIDDLE FINGER. ACCORDING TO REGULATION THE CONVEYOR SHOULD HAVE BEEN TURNI

For insurers, brokers, and safety consultants

The full compliance file on Star Pit #1

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.