Mining Incidents

SUPERIOR MARBLE MILL: 4 MSHA citations Metal/Non-Metal

Superior Marble Llc · Facility
Maricopa County, AZ  ·  Abandoned
MSHA Mine ID: 0202603

SUPERIOR MARBLE MILL has $2K 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
6
Years on record
1996–1999
Latest incident
Sep 1999
Compliance record
MSHA citations since 2000
4
citations
1
significant & substantial
$1,840
proposed penalties
$1,840
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
2
inspections on record
33
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: 33 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

SUPERIOR MARBLE MILL has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2000-04-18.
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
75.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.0% low, 75.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.

SUPERIOR MARBLE MILL recorded 0.00 reportable injury cases per 100 full-time workers in 2000.

Injury rate, 2000
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 4.77 and the all-US-mining average was 5.64 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 3.63 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Mineral Development Inc 1993 to 1997
  2. Superior Marble Llc 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2002 0
2001 7
2000 27
Source: MSHA quarterly employment and production, updated weekly.

SUPERIOR MARBLE MILL sits in Maricopa County, Arizona, where the Census mining category is 0.2% 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.
Maricopa County, Arizona · Population 4,491,987
0.2%
Mining share of county employment
$85,518
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 Q1 0 0 0
2001 Q4 0 0 0
2001 Q3 0 0 0
2001 Q2 0 0 0
2001 Q1 9,166 0 0 0.0
2000 Q4 14,196 0 0 0.0
2000 Q3 12,019 0 0 0.0
2000 Q2 13,287 4 1 301.0
Show 1 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2000 Q1 11,554 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

1999 · 1 incident

September 3, 1999 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Superior Marble Llc · Over-exertion in lifting objects

EE WAS STACKING 100 # BAGS ON PALLETS AND FELT A PAIN IN HIS GROIN AREA. DIAGNOSED AS A HERNIA, WHICH REQUIRED SURGERY.

1996 · 5 incidents

September 5, 1996 AZ · Metal/Non-Metal welder (shop) MACHINERY
Mineral Development Inc · Struck by... (Not Elsewhere Classified)

EE WAS GRINDING WELDS AND PIECE OF STEEL GOT UNDER SAFETY GLASSES AND INTO EYE.

August 8, 1996 AZ · Metal/Non-Metal shaft repair, skip tender, station tender HANDTOOLS (NONPOWERED)
Mineral Development Inc · Struck by flying object

SHOVELING ROCK AROUND CRUSHER. SMALL ROCK OR SAND GOT UNDER SAFETY GLASSES AND INTO EYE.

July 30, 1996 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mineral Development Inc · Over-exertion (Not Elsewhere Classified)

EE WAS STACKING WOODEN PALLETS & HURT NECK

June 3, 1996 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Mineral Development Inc · Struck by... (Not Elsewhere Classified)

EE WAS PRYING COVER OFF GRADATION PANS. SLIPPED AND SLICED FORARM WITH PRYBAR.

May 22, 1996 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HOISTING
Mineral Development Inc · Struck by... (Not Elsewhere Classified)

EE WAS MONITORING HOPPER AND THE ELEVATOR SHAFT DURING BAGGING OPERATION, AND GOT FOREIGN OBJECT IN EYE.