Nelson Bros. Quarries, Inc. has had no fatalities among 3 reportable incidents since 1991.
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.
Ottawa County, Oklahoma · Population 30,360
0.5%
Mining share of county employment
$48,656
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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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 |
| 2001 Q2 |
130 |
0 |
0 |
0.0 |
| 2001 Q1 |
240 |
0 |
0 |
0.0 |
| 2000 Q4 |
996 |
0 |
0 |
0.0 |
| 2000 Q3 |
0 |
0 |
0 |
|
| 2000 Q2 |
1,410 |
0 |
0 |
0.0 |
| 2000 Q1 |
3,000 |
0 |
0 |
0.0 |