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LAKESIDE - VIGILANTE AGGREGATES Metal/Non-Metal

Martin Marietta San Diego Aggregates, LLC · Surface

Controlled by Martin Marietta Materials Inc

SAN DIEGO, San Diego County, CA · Active

MSHA Mine ID: 0402685

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Fatalities: 0
Total incidents: 9
Years on record: 2001–2020
Latest incident: Mar 2020

Compliance record

MSHA citations since 2000

citations

significant & substantial

$22,107

proposed penalties

$21,418

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	10,784	0	0	0.0
2025 Q3	2,080	0	0	0.0
2025 Q2	1,854	4	1	2157.5
2025 Q1	7,737	0	0	0.0
2024 Q3	10,077	1	1	99.2
2024 Q1	10,156	1	0	98.5
2023 Q4	14,800	0	0	0.0
2023 Q3	15,371	2	1	130.1

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

9 on file

2020 · 1 incident

March 3, 2020 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT

Hanson Aggregates Pacific Southwest Inc · Struck against stationary object

EE was walking under Conveyor PC-12 and slipped when they stepped on a rock. Their right knee jammed when their foot slipped. The EE was offered medical attention and refused at that time. The EE reportedly twisted their knee over the weekend when their foot got stuck in the mud. EE reported twisted knee to their Lead Person on Tuesday 3/24 requesting medical treatment.

2018 · 2 incidents

July 11, 2018 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Hanson Aggregates Pacific Southwest Inc · Over-exertion (Not Elsewhere Classified)

Employee suffered sprain/stain injury when the return roller popped out of place as EE was inserting it into the bracket.

February 1, 2018 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)

Hanson Aggregates Pacific Southwest Inc · Struck by falling object

Employee suffered a neck strain when a sledge hammer head came off of a hammer, striking them on the hardhat. The hammer was being held by another worker as the injured miner was assisting loosening a bolt.

2007 · 3 incidents

September 15, 2007 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS

Hanson Aggregates Pacific Southwest Inc · Struck by falling object

The employee was removing v-belts from an impact crusher. While removing the v-belts off the sheave, the whole sheave assembly fell off causing the v-belts to pull down weight of the sheave which struck the employee in the face. Initially this injury was first aid only; then the employee was referred to a dentist for further intervention.

August 9, 2007 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY

Hanson Aggregates Pacific Southwest Inc · Struck against a moving object

While operating a dozer the employee felt a sharp pain in his right shoulder and shoulder blade. Initially this was first aid only. Employee terminated 11/06/07 due to work force reduction prior to being released to return to work full duty (right shoulder surgery performed 12/13/07).

July 25, 2007 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS

Hanson Aggregates Pacific Southwest Inc · Over-exertion (Not Elsewhere Classified)

Repetitive motion from entering/exiting the loader.

2003 · 2 incidents

August 4, 2003 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS

Hanson Aggregates Pacific Southwest Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS SHOVELING MATERIAL WHEN HE FELT PAIN IN HIS LOWER ABDOMINAL AREA.

January 11, 2003 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS

Hanson Aggregates Pacific Southwest Inc · Caught in, under or between (Not Elsewhere Classified)

WHILE REMOVING A SHAFT AND WHEEL FROM A PAN FEEDER, ONE SIDE OF THE SHAFT SLIPPED OUT OF THE EMPLOYEE'S GRASP CAUSING THE SHAFT TO FALL AND PINCH RIGHT FINGER.

2001 · 1 incident

April 18, 2001 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE

Hanson Aggregates Pacific Southwest Inc · Over-exertion (Not Elsewhere Classified)

EE WAS OPERATING A FRONT-END LOADER AND FELT A STRAIN TO HIS LEFT WRIST WHEN HE SHIFTED GEARS.