Archimedes Underground Mine Metal/Non-Metal
Ruby Hill Mining Company, LLC.
· Underground
Controlled by
i-80 Gold Corp
Eureka,
Eureka County,
NV
·
Active
MSHA Mine ID: 2602912
Archimedes Underground Mine has $15K in proposed MSHA penalties and $2K outstanding across 1 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2025
11
citations
0
significant & substantial
$14,645
proposed penalties
$13,015
paid to date
89% of proposed penalties paid to date, a $1,630 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2025
5
inspections on record
98
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: 98 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Archimedes Underground Mine has $15K in proposed MSHA penalties and $2K outstanding across 1 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$15K
proposed penalties
$15K
current assessed
$13K
paid to date
$2K
outstanding
8 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-05-20.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 |
|---|---|---|---|---|
| 2025 Q4 | 494 | 2 | 0 | 4048.6 |
| 2025 Q3 | 88 | 2 | 0 | 22727.3 |
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.
For insurers, brokers, and safety consultants
The full compliance file on Archimedes Underground Mine
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.