Mining Incidents

Sweetwater Aggregates: 4 reportable incidents Metal/Non-Metal

Controlled by Calmat Company
Los Angeles County, CA  ·  Abandoned
MSHA Mine ID: 0404741

Sweetwater Aggregates has had no fatalities among 4 reportable incidents since 1990.

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Fatalities
0
Total incidents
4
Years on record
1990–1991
Latest incident
Apr 1991
Ownership history
  1. Lang Station Sand & Gravel 1985 to 1987
  2. Lang Station Inc 1987 to 1988
  3. Sweetwater Aggregates 1988 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
1992 0
1991 5
1990 11
1989 13
1988 15
1987 10
1986 3
1985 3
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.

Sweetwater Aggregates sits in Los Angeles County, California, where the Census mining category is 0.0% 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.
Los Angeles County, California · Population 9,848,406
0.0%
Mining share of county employment
$87,760
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

4 on file

1991 · 1 incident

April 1, 1991 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Sweetwater Aggregates · Fall from scaffolds, walkways, platforms

EMP WAS WELDING ON 4 FT HIGH SCAFFOLD, FELL TO GROUND.

1990 · 3 incidents

December 3, 1990 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Sweetwater Aggregates · Over-exertion (Not Elsewhere Classified)

PERFORMING REGULAR DUTIES-SHOVELING-WHEN HE FELT PAIN IN LOWER ABDOMEN,LEFT SIDE.(DIAG:ABDOMINAL STRAIN -NO LOST TIME.)

July 16, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Sweetwater Aggregates · Struck against stationary object

WHILE ENGAGING THROTTLE ON WELDER,HAND SLIPPED OFF AND STRUCK FAN BLADE.

June 29, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Sweetwater Aggregates · Over-exertion in lifting objects

PUTTING STEEL PIECES INTO LOADER BUCKET TO TRANSPORT TO SCRAP PILE LIFTING./