Mining Incidents

Stockton Pit Metal/Non-Metal

Kilgore Contracting · Surface
Controlled by Summit Materials LLC
Stockton, Tooele County, UT  ·  Active
MSHA Mine ID: 4202480

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Fatalities
0
Total incidents
8
Years on record
2009–2025
Latest incident
Sep 2025
Compliance record
MSHA citations since 2008
62
citations
17
significant & substantial
$14,958
proposed penalties
$12,973
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 7,504 0 0 0.0
2025 Q3 9,470 0 0 0.0
2025 Q2 7,525 3 0 398.7
2025 Q1 5,834 0 0 0.0
2024 Q4 8,698 1 0 115.0
2024 Q3 718 1 1 1392.8
2024 Q2 7,947 1 0 125.8
2024 Q1 4,620 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

8 on file

2025 · 1 incident

September 30, 2025 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Kilgore Contracting · Over-exertion (Not Elsewhere Classified)

The employee was walking around EE's service truck walking on uneven surface throwing away trash, flashing, and old bearing housing that were in the back of the service truck, when the employee felt a pop in EE's left knee.

2022 · 1 incident

August 4, 2022 UT · Metal/Non-Metal outside foreman, leadman MACHINERY
Kilgore Contracting · Caught in, under or between a moving and a stationary object

Employee removed a bolt from a wash plant pinching EE's finger causing a laceration to EE's right little finger requiring stitches.

2012 · 1 incident

September 4, 2012 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Kilgore Contracting · Caught in, under or between a moving and a stationary object

Employee was using a pry bar to lift steel plate to remove a rock that was stuck behind the plate. His hand slid off bar and pinched his right hand between the plate and the rock that he was removing.

2011 · 1 incident

December 3, 2011 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Kilgore Contracting · Struck against stationary object

Employee was climbing the access ladder to a 980H loader and struck knee on bottom of the next step up causing a contusion

2010 · 3 incidents

June 28, 2010 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Peak Construction Material · Struck by... (Not Elsewhere Classified)

EE was in the process of changing mantle head on crusher, large wrench slipped hitting EE on right knee causing a laceration

June 28, 2010 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Peak Construction Material · Struck against stationary object

while decending from repair job on rock chute Employee struck shin on piece of metal

March 1, 2010 UT · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Peak Construction Material · Struck by... (Not Elsewhere Classified)

While using a chisel to remove the teeth on a loader bucket, the chisel had broke when struck by the hammer causing injury to miners left hand

2009 · 1 incident