Mining Incidents

JAMACHA QUARRY Metal/Non-Metal

Controlled by Vulcan Materials Company
LAKESIDE, CA, San Diego County, CA  ·  Abandoned
MSHA Mine ID: 0400135

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Fatalities
0
Total incidents
5
Years on record
2002–2024
Latest incident
Mar 2024
Compliance record
MSHA citations since 2000
160
citations
52
significant & substantial
$46,388
proposed penalties
$30,200
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 1,125 0 0 0.0
2025 Q3 1,594 0 0 0.0
2025 Q2 4,306 3 1 696.7
2025 Q1 5,679 8 3 1408.7
2024 Q4 6,107 0 0 0.0
2024 Q3 5,049 0 0 0.0
2024 Q2 5,708 1 0 175.2
2024 Q1 5,194 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

5 on file

2024 · 1 incident

March 26, 2024 CA · Metal/Non-Metal bobcat operator POWERED HAULAGE
Superior Ready Mix Concrete L.P. · Caught in, under or between running or meshing objects

Worker was cleaning plant when they pinched their right 4th and 5th fingers in between bobcat bucket and hydraulic ram causing laceration of the 4th finger and fracture of 5th finger.

2016 · 1 incident

November 8, 2016 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Superior Ready Mix Concrete L.P. · Over-exertion in pulling or pushing objects

Employee was being trained on a Rock Drill when one of the steel drill rods on the rotating carousel became loose from the top part of the carousel star. While employee was applying pressure to the drill rod trying to push it back in place, EE smashed finger.

2014 · 1 incident

June 12, 2014 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman STEPPING OR KNEELING ON OBJECT
Superior Ready Mix Concrete L.P. · Struck against stationary object

Employee was walking at the plant close to the 3" minus rock pile when he stepped on a rock and twisted his left knee.

2013 · 1 incident

July 5, 2013 CA · Metal/Non-Metal ledgeman/hand, quarry man POWERED HAULAGE
Superior Ready Mix Concrete L.P. · Struck by... (Not Elsewhere Classified)

While standing on a 4 x 12 board between two metal conveyor supports employee was guiding forklift operator to raise the gravity take-up on the belt to install a new belt. A fork got caught on a 3 piece of angle iron and the pressure on the fork became too great causing the angle iron to bend, and the fork to strike employee in the neck, face, and side of head.

2002 · 1 incident

June 19, 2002 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
C W Mc Grath Inc · Fall from machine

EMPLOYEE CHOSE TO DESCEND EQUIPMENT ON THE WRONG SIDE INSTEAD OF USING THE WALKWAY.