Mining Incidents

AMMEX: 8 MSHA citations Metal/Non-Metal

Controlled by Granite Construction Inc
Ocotillo, Imperial County, CA  ·  Abandoned
MSHA Mine ID: 0404784

AMMEX has $496 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
8
Years on record
1989–2000
Latest incident
Apr 2000
Compliance record
MSHA citations since 2000
8
citations
2
significant & substantial
$496
proposed penalties
$496
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
3
inspections on record
71
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: 71 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

AMMEX has $496 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.
$496
proposed penalties
$496
current assessed
$496
paid to date
$0
outstanding
8 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2001-07-02.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 50.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Merrill Corp 1986 to 1988
  2. Tarmac California Inc 1988 to 1992
  3. Granite Construction Company 1992 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2002 3
2001 7
2000 7
Source: MSHA quarterly employment and production, updated weekly.

AMMEX sits in Imperial County, California, where the Census mining category is 0.3% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Imperial County, California · Population 179,319
0.3%
Mining share of county employment
$56,393
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2002 Q4 96 0 0 0.0
2002 Q3 301 0 0 0.0
2002 Q2 244 0 0 0.0
2002 Q1 1,067 0 0 0.0
2001 Q4 2,520 0 0 0.0
2001 Q3 2,448 7 2 2859.5
2001 Q2 2,543 0 0 0.0
2001 Q1 1,757 0 0 0.0
Show 4 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2000 Q4 2,842 0 0 0.0
2000 Q3 3,094 0 0 0.0
2000 Q2 2,731 1 0 366.2
2000 Q1 2,853 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

8 on file

2000 · 1 incident

April 7, 2000 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Granite Construction Company · Struck against stationary object

EMPLOYEE WAS ADJUSTING A CONVEYOR BELT WHEN HE SMASHED HIS FINGER AGAINST CONVEYOR FRAME.

1994 · 1 incident

March 25, 1994 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Granite Construction Company · Struck against a moving object

WHILE EMPLOYEE WAS MOVING SAND & ROCK WITH 966 LOADER, HE STRAINED HIS BACK.

1992 · 3 incidents

December 18, 1992 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Granite Construction Company · Struck by falling object

EMPLOYEE WAS REMOVING A JAW BULK HEAD FROM A CRUSHER. WHILE LOADER WAS LOWERING THE JAW BULK HEAD, THE LOAD FELL ON THE EMPLOYEE'S LEFT LEG AND PINCHED IT.

August 14, 1992 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Granite Construction Company · Over-exertion in lifting objects

WHILE MAKING REPAIRS, EMPLOYEE WAS LIFTING CONVEYOR BELT ONTO THE CONVEYOR AND STRAINED HIS LOWER BACK.

March 30, 1992 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Tarmac California Inc · Over-exertion (Not Elsewhere Classified)

WHILE EMPLOYEE WAS CHANGING A CONVEYOR BELT AT THE AGGREGATE PLANT, HE FELT A PAIN IN HIS LOWER BACK AREA.

1990 · 2 incidents

July 31, 1990 CA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor ELECTRICAL
Tarmac California Inc · Contact with electrical current

WAS MAKING ADJUSTMENT ON A SMALL GENERATOR AND THE SCREWDRIVER AND THE SCREWDRIVER SLIPPED AND SHORTED A WIRE CAUSING MINOR INJURY TO HIS INDEX FINGER.

January 11, 1990 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Tarmac California Inc · Over-exertion in pulling or pushing objects

HE WAS REPAIRING CRUSHER CONVEYOR AND PULLED TOO HARD AND SPRAINED HIS RIGHT SHOULDER.

1989 · 1 incident

July 17, 1989 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (PHYSICAL AGENTS)
Tarmac California Inc · Contact with heat

I,NAME WAS WELDING IN THE DIRECT SUN IN TEMPERATURES OVER 110 DEGREES.