Mining Incidents

Boca Quarry Metal/Non-Metal

Teichert Aggregates · Surface
Controlled by Teichert Inc
Truckee, Nevada County, CA  ·  Intermittent
MSHA Mine ID: 0404708

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Fatalities
0
Total incidents
2
Years on record
2000–2006
Latest incident
Sep 2006
Compliance record
MSHA citations since 2000
25
citations
2
significant & substantial
$1,854
proposed penalties
$1,854
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 795 0 0 0.0
2025 Q3 860 0 0 0.0
2025 Q2 240 0 0 0.0
2024 Q4 2,240 0 0 0.0
2024 Q3 8,506 1 0 117.6
2024 Q2 5,908 0 0 0.0
2017 Q4 1 0 0 0.0
2017 Q3 1 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

2 on file

2006 · 1 incident

September 23, 2006 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Teichert Aggregates · Struck against a moving object

Driver was operating a haul truck on the upper haul road. He hit a compression bottoming out the vehicle, causing injury to his lower back.

2000 · 1 incident

August 29, 2000 CA · Metal/Non-Metal mine manager, mine foreman, mine owner POWERED HAULAGE
Jim Dobbas Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS EXITING THE SKIDSTEER & DIDN'T TURN OFF THE EQUIPMENT; HE PLACED HIS LEFT FOOT ON THE FRAME AND AS HE WAS REMOVING HIS RIGHT FOOT, HE TOUCHED THE ACTUATOR PEDAL CAUSING THE BUCKET TO TILT BACK AND COMPRESS HIS LEFT FOOT. HE KNOWS HE SHOULD HAVE TURNED THE SKIDSTEER OFF PRIOR TO EXITING BUT SAID HE HAD LEFT THE HOOD ON THE ENGINE OPEN AND WAS STEPPING OUT TO CLOSE IT.