Mining Incidents

Williams #1: 2 reportable incidents Metal/Non-Metal

Chem-Stone Inc · Surface
Coconino County, AZ  ·  Abandoned
MSHA Mine ID: 0202493

MSHA record for Williams #1 (mine ID 0202493). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
2
Years on record
1989–1990
Latest incident
Aug 1990
Ownership history
  1. Chem-Stone Inc 1989 to present
Source: MSHA controller and operator history, updated weekly.

Williams #1 sits in Coconino 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.
Coconino County, Arizona · Population 144,643
0.2%
Mining share of county employment
$69,748
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

2 on file

1990 · 1 incident

August 9, 1990 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Chem-Stone Inc · Fall to the walkway or working surface

WALKING ON LOOSE GRAVEL SLIPPED AND FELL TO GROUND- HIT HEAD AND NECK ON GROUND. REPORTED TO DOCTOR ON 8-16-90 AT 10:30 AM.

1989 · 1 incident

October 25, 1989 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Chem-Stone Inc · Fall from ladders

CLIMBING LADDER TO TOP OF TRUCK VAN LADDER SLIPPED. FELL, HURT BACK.