Mining Incidents

White Cliffs Mine & Plant: 14 MSHA citations Metal/Non-Metal

St. Cloud Mining Co · Surface
Controlled by Equalizer Inc
Mammoth, Pinal County, AZ  ·  Abandoned
MSHA Mine ID: 0202342

White Cliffs Mine & Plant has $1K 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
3
Years on record
1993–1994
Latest incident
May 1994
Compliance record
MSHA citations since 2003
14
citations
3
significant & substantial
$1,078
proposed penalties
$1,078
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
7
inspections on record
75
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: 75 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

White Cliffs Mine & Plant has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
13 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-01-22.
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.
23.1%
significant & substantial
0.0%
high negligence or reckless
23.1%
reasonably likely or greater
61.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 15.4% low, 84.6% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Whitecliff Industries Inc 1986 to 1993
  2. Arimetco Inc 1993 to 1999
  3. Adit Canyon Llc 1999 to 2002
  4. ZEOX Mineral Materials Corporation 2002 to 2010
  5. St. Cloud Mining Co 2010 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2010 2
2009 2
2008 6
2007 4
2003 2
2002 5
Source: MSHA quarterly employment and production, updated weekly.

White Cliffs Mine & Plant sits in Pinal County, Arizona, where the Census mining category is 0.8% 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.
Pinal County, Arizona · Population 449,219
0.8%
Mining share of county employment
$77,588
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
2010 Q4 113 0 0 0.0
2009 Q1 474 1 0 2109.7
2008 Q4 1,291 0 0 0.0
2008 Q3 1,982 0 0 0.0
2008 Q2 2,212 0 0 0.0
2008 Q1 2,095 1 0 477.3
2007 Q4 1,889 0 0 0.0
2003 Q4 552 0 0 0.0
Show 5 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2003 Q3 512 12 3 23437.5
2003 Q2 1,520 0 0 0.0
2003 Q1 0 0 0
2002 Q4 720 0 0 0.0
2002 Q3 3,360 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

1994 · 1 incident

May 3, 1994 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman ELECTRICAL
Arimetco Inc · Absorption of radiations, caustics, toxic and noxious substances

WHEN REMOVING VENT CAPS FROM BATTERY, THE BATTERY EXPLODED AND SPLASHED ELECTROLYTE IN DANNY'S EYES.

1993 · 2 incidents

August 12, 1993 AZ · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Arimetco Inc · Struck against stationary object

WHILE USING A HAMMER TO REMOVE CUTTING EDGES THE HAMMER HANDLE BROKE CAUSING EE HANDS TO STRIKE THE CUTTING EDGE

July 13, 1993 AZ · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Arimetco Inc · Struck by... (Not Elsewhere Classified)

WHILE USING AN ELECTRIC DRILL THE DRILL BIT BROKE CUTTING EE AT LITTLE FINGER.