Mining Incidents

Aguanga Plant: 51 MSHA citations Metal/Non-Metal

Aguanga, Riverside County, CA  ·  Abandoned
MSHA Mine ID: 0403366

Aguanga Plant has $7K 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
1986–1993
Latest incident
Mar 1993
Compliance record
MSHA citations since 2000
51
citations
20
significant & substantial
$6,587
proposed penalties
$6,587
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
19
inspections on record
229
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: 229 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Aguanga Plant has $7K 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
51 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2005-06-07.
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.
39.2%
significant & substantial
0.0%
high negligence or reckless
39.2%
reasonably likely or greater
66.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 7.8% low, 92.2% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2001-08-01, 25 years ago
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2001-08-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2001-08-01 Respirable dust, <.1mg 0 Crusher Oper/Worker
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Shamrock Sand & Rock Corp 1950 to 2003
  2. C L Pharris Sand & Gravel Inc 1985 to 1992
  3. Sunwest Materials 1992 to 1995
  4. Shamrock Sand & Rock LLC 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2007 2
2006 2
2005 3
2004 3
2003 6
2002 8
2001 7
2000 9
Source: MSHA quarterly employment and production, updated weekly.

Aguanga Plant sits in Riverside County, California, where the Census mining category is 0.1% 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.
Riverside County, California · Population 2,449,909
0.1%
Mining share of county employment
$89,672
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
2007 Q1 384 0 0 0.0
2006 Q1 282 0 0 0.0
2005 Q4 1,786 0 0 0.0
2005 Q3 1,536 0 0 0.0
2005 Q2 1,546 3 0 1940.5
2005 Q1 1,323 0 0 0.0
2004 Q4 1,674 4 0 2389.5
2004 Q3 1,531 0 0 0.0
Show 17 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2004 Q2 1,498 6 5 4005.3
2004 Q1 1,509 1 0 662.7
2003 Q4 1,038 0 0 0.0
2003 Q3 4,557 4 1 877.8
2003 Q1 4,011 0 0 0.0
2002 Q4 3,945 0 0 0.0
2002 Q3 4,069 3 0 737.3
2002 Q2 3,700 0 0 0.0
2002 Q1 3,132 5 0 1596.4
2001 Q4 4,191 0 0 0.0
2001 Q3 3,281 3 3 914.4
2001 Q2 3,181 0 0 0.0
2001 Q1 3,011 0 0 0.0
2000 Q4 3,198 0 0 0.0
2000 Q3 2,759 0 0 0.0
2000 Q2 3,869 5 4 1292.3
2000 Q1 5,125 17 7 3317.1
No fatalities recorded at this mine.

Reportable incidents

8 on file

1993 · 1 incident

March 2, 1993 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Sunwest Materials · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS ASSISTING ANOTHER EMPLOYEES INSTALLING A DRAG CABLE ON THE CRANE CABLE SPRUNG BACK HITTING THE EMPLOYEE IN THE MOUTH

1992 · 1 incident

May 22, 1992 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Sunwest Materials · Over-exertion in lifting objects

EE WAS INSTALLING A REAR PLATE ON THE SHAKER. HE INJURED HIS BACK LIFTING THE REAR COVER ON THE SHAKER.

1991 · 2 incidents

December 30, 1991 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
C L Pharris Sand & Gravel Inc · Fall from machine

EE WAS STANDING ON THE FENDER OF THE BUNKER TRUCK ADDING POWER STEERING FLUID TO THE RESEVOIR HE LOST HIS FOOTING AND FELL BACKWARDS LANDING ON THE CEMENT BORDER OF THE CONTAINMENT SLAB.

September 11, 1991 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
C L Pharris Sand & Gravel Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS CLIMBING THE LADDER GOING UP TO THE #1 BELT FROM THE FEEDER ON THE PLANT. HE LOST HIS FOOTING AND SLIPPED CLIMBING THE LADDER.

1988 · 1 incident

May 4, 1988 CA · Metal/Non-Metal tipple/top lander/skip dumper operator, binman, topman HANDLING OF MATERIALS
C L Pharris Sand & Gravel Inc · Struck by... (Not Elsewhere Classified)

DISLODGING ROCK FROM REAR TIRE AND FRAME OF SCRAPER ROCK HIT EMPLOYEE,S EYEBROW.

1987 · 1 incident

August 31, 1987 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
C L Pharris Sand & Gravel Inc · Struck by... (Not Elsewhere Classified)

EMPL CHANGING D6MP PULLEY CABLE AND CABLE SLIPPED OUT OF CLEVIS AND HIT FINGER.

1986 · 2 incidents

December 29, 1986 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
C L Pharris Sand & Gravel Inc · Caught in, under or between a moving and a stationary object

PICKING STICK F9OM SHAKER SCREEN STRUCK FINGER BETWEEN MOVING SHAKER BOX & STATENARY DISCHARGE CHUTE.

March 25, 1986 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
C L Pharris Sand & Gravel Inc · Struck by... (Not Elsewhere Classified)

STRUCK LEFT SID9 OF FOREHEAD WITH CHAIN CAUSED L%*@*% CAUSED A LACERATION TO UPPER FOREHEAD.