JS-4 Metal/Non-Metal
MSHA record for JS-4 (mine ID 5001240). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Inspection activity
MSHA inspections since 2021
6
inspections on record
74
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: 74 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
- Thurman Oil & Mining Inc 1950 to 2020
- Hat Creek Mining 2020 to 2023
- Hat Creek Mining LLC 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 2 |
| 2025 | 2 |
| 2024 | 1 |
| 2023 | 3 |
| 2022 | 1 |
| 2021 | 2 |
| 2020 | 5 |
Source: MSHA quarterly employment and production, updated weekly.
JS-4 sits in Fairbanks North Star Borough, Alaska, where the Census mining category is 2.6% 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.Fairbanks North Star Borough, Alaska · Population 95,555
2.6%
Mining share of county employment
$84,722
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 |
|---|---|---|---|---|
| 2026 Q2 | 190 | 0 | 0 | 0.0 |
| 2026 Q1 | 10 | 0 | 0 | 0.0 |
| 2025 Q4 | 10 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,050 | 0 | 0 | 0.0 |
| 2025 Q2 | 14 | 0 | 0 | 0.0 |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 20 | 0 | 0 | 0.0 |
| 2024 Q3 | 900 | 0 | 0 | 0.0 |
Show 16 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q1 | 0 | 0 | 0 | |
| 2023 Q4 | 70 | 0 | 0 | 0.0 |
| 2023 Q3 | 710 | 0 | 0 | 0.0 |
| 2023 Q2 | 340 | 0 | 0 | 0.0 |
| 2023 Q1 | 20 | 0 | 0 | 0.0 |
| 2022 Q4 | 20 | 0 | 0 | 0.0 |
| 2022 Q3 | 0 | 0 | 0 | |
| 2022 Q2 | 398 | 0 | 0 | 0.0 |
| 2022 Q1 | 0 | 0 | 0 | |
| 2021 Q4 | 0 | 0 | 0 | |
| 2021 Q3 | 1,601 | 0 | 0 | 0.0 |
| 2021 Q2 | 560 | 0 | 0 | 0.0 |
| 2021 Q1 | 0 | 0 | 0 | |
| 2020 Q4 | 224 | 0 | 0 | 0.0 |
| 2020 Q3 | 624 | 0 | 0 | 0.0 |
| 2020 Q2 | 0 | 0 | 0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.