Mining Incidents

Petaluma Quarry Metal/Non-Metal

Dutra Materials · Surface
Controlled by Bill T Dutra
Sonoma County, CA  ·  Abandoned
MSHA Mine ID: 0400131

Petaluma Quarry has $110 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
15
Years on record
1984–1994
Latest incident
Oct 1994
Compliance record
MSHA citations since 2000
2
citations
0
significant & substantial
$110
proposed penalties
$110
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1
inspections on record
18
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: 18 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Petaluma Quarry has $110 in proposed MSHA penalties and $0 outstanding across 0 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.
$110
proposed penalties
$110
current assessed
$110
paid to date
$0
outstanding
2 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2000-09-07.
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
2001 Q1 1,558 0 0 0.0
2000 Q4 3,360 0 0 0.0
2000 Q3 1,554 2 0 1287.0
2000 Q2 728 0 0 0.0
2000 Q1 1,204 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

15 on file

1994 · 2 incidents

October 18, 1994 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DISORDERS (REPEATED TRAUMA)
American Rock & Asphalt Inc · Over-exertion (Not Elsewhere Classified)

EE STATES THAT HIS LEFT WRIST HURTS.

June 15, 1994 CA · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
American Rock & Asphalt Inc · Contact with hot objects or substances

EMPLOYEE WAS REMOVING WIRE FROM SCREEN ON CRUSHER WHEN HE BEGAN TO DROP THE BLOW TORCH THAT WAS IN HIS RIGHT HAND. HIS GLOVE WAS STUCK IN THE WIRE, SO WHEN HE GRABBED FOR THE TORCH, SO HE WOU LD NOT DORP IT, HE BURNE DHIS LEFT HAND.

1993 · 6 incidents

November 12, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DISORDERS (REPEATED TRAUMA)
American Rock & Asphalt Inc · Over-exertion (Not Elsewhere Classified)

CARPAL TUNNEL OF BOTH ARMS.

November 10, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
American Rock & Asphalt Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE GOT HIT IN THE ELBOW & FOREARM WITH ROCKS WHEN TRYING TO FREE ROCKS FROM CRUSHER HOPPER

November 8, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
American Rock & Asphalt Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS WORKING WITH A WRENCH THE WRENCH SLIPPED & HIT HIM IN THE MOUTH & INJURED HIS TOOTH

October 29, 1993 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
American Rock & Asphalt Inc · Struck by falling object

EMPLOYEE WAS REPAIRING A PART IN HIS LOADER. HIS HADNS WERE GREASY AND WHEN HE TRIED TO PUT THE PART IN THE LOADER, IT FELL OUT OF HIS HADNS AND HIT HIM IN THE FOREHEAD.

May 10, 1993 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
American Rock & Asphalt Inc · Struck by flying object

EMPLOYEE WAS OPERATING THE ROCK BREAKER AT THE ROCK PLANT. WHILE OPERATING THE ROCK BREAKER, A STONE FRAGMENT HIT HIS EYE.

March 31, 1993 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
American Rock & Asphalt Inc · Struck against a moving object

EMPLOYEE WAS DRIVING A FRONT END LOADER UP A HILL. THE LOADER LOST POWER AND DESCENDED DOWN THE HILL AND FELL OVER ON ITS LEFT SIDE.

1992 · 3 incidents

November 14, 1992 CA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDLING OF MATERIALS
American Rock & Asphalt Inc · Over-exertion in lifting objects

EE WAS LIFTING A ROCK FROM THE JAW CRUSHER AND FELT A SUDDEN PAIN IN HIS GROIN.

October 1, 1992 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
American Rock & Asphalt Inc · Fall onto or against objects

EMPLOYEE WAS USING A DIGGING BAR. HE SLIPPED AND FELL ON DIGGING BAR, HITTING HIS MOUTH AND CRACKING HIS TOOTH ON RIGHT SIDE OF MOUTH.

January 30, 1992 CA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDTOOLS (NONPOWERED)
American Rock & Asphalt Inc · Struck by... (Not Elsewhere Classified)

EE WAS BREAKING A ROCK IN THE JAW CRUSHER WITH A WEDGE THE WEDGE CAME BACK AND HIT EE IN THE FACE NOSE AND JAW.

1991 · 2 incidents

November 9, 1991 CA · Metal/Non-Metal refuse truck driver, backfill truck driver, stock pile truck driver POWERED HAULAGE
American Rock & Asphalt Inc · Struck against a moving object

EMPL DRIVING A LOADER AND IT TIPPED OVER.HURT HIP,BACK AND HAS HEADACHES.REPORTED INJURY 12-12-91.

1988 · 1 incident

February 12, 1988 CA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDLING OF MATERIALS
American Rock & Asphalt Inc · Over-exertion in lifting objects

EMPLOYEE WAS CHANGING SCRREN CLOTH AND WASHING SCREEN. HE LIFTED THE MAIN SCREEN UNIT AND HURT HIS BACK.

1984 · 1 incident

April 2, 1984 CA · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
Quarry Products Inc · Fall from machine

OPERATOR WAS OPERATING A BACKHOE CLEANING OUT A DRAINAGE DITCH. THE BACKHOE IS A BOLT-ON ATTACHMENT TO A TRACK LOADER. THE OPERATOR SITS ON THE BACKHOE UNIT WHEN OPERATING. THE BOLTS AND BASE PLATE BROKE AWAY FROM THE TRACK LOADER THROWING OPERATOR TO GROUND.

For insurers, brokers, and safety consultants

The full compliance file on Petaluma Quarry

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.