Mining Incidents

Bay City Mine: 1 reportable incident Metal/Non-Metal

Controlled by Eldon L Duncan
Bay City, Pierce County, WI  ·  Abandoned
MSHA Mine ID: 4703473

MSHA record for Bay City Mine (mine ID 4703473). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
1
Years on record
2006
Latest incident
Nov 2006
Inspection activity
MSHA inspections since 2006
2
inspections on record
56
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: 56 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, 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: 2007-03-14, 19 years ago
0%
of limit-tested samples over the exposure limit
3
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2007-03-14 Quartz, respirable, >1% Qtz 0.18 1.37 0.13 Supervisor, Co. Official
2007-03-14 Quartz, respirable, >1% Qtz 0.16 1.72 0.09 Mechanic
2007-03-14 Unlisted Particulate, respirable, <1% Qtz 0.13 Mechanic
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. Wisconsin Specialty Sands, Inc. 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2007 6
2006 7
Source: MSHA quarterly employment and production, updated weekly.

Bay City Mine sits in Pierce County, Wisconsin, 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.
Pierce County, Wisconsin · Population 42,351
0.1%
Mining share of county employment
$88,802
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 Q4 0 0 0
2007 Q2 4,447 0 0 0.0
2007 Q1 4,067 0 0 0.0
2006 Q4 3,547 0 0 0.0
2006 Q3 1,099 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2006 · 1 incident

November 7, 2006 WI · Metal/Non-Metal drill operator MACHINERY
Wisconsin Specialty Sands, Inc. · Fall from machine

Operator was coming down entrance road to mining operation on Drill when he accidently hit the lever to disengage clutch. The drill then picked up speed and due to a temporary propane tank at the bottom of hill the operator thought he might hit, operator jumped off machine.