Mining Incidents

Ione Plant Metal/Non-Metal

Ione, Amador County, CA  ·  Abandoned
MSHA Mine ID: 0405952

Ione Plant has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
3
Years on record
2021–2023
Latest incident
Jan 2023
Compliance record
MSHA citations since 2021
21
citations
1
significant & substantial
$2,956
proposed penalties
$2,956
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2021
9
inspections on record
127
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: 127 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Ione Plant has $3K in proposed MSHA penalties and $0 outstanding across 0 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-12-28.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2024 Q1 9,897 0 0 0.0
2023 Q4 13,809 2 0 144.8
2023 Q3 25,992 3 0 115.4
2023 Q2 24,072 0 0 0.0
2023 Q1 25,724 0 0 0.0
2022 Q4 29,462 0 0 0.0
2022 Q3 26,005 0 0 0.0
2022 Q2 21,551 10 1 464.0
Show 5 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q1 39,734 3 0 75.5
2021 Q4 72,012 0 0 0.0
2021 Q3 41,060 0 0 0.0
2021 Q2 27,414 3 0 109.4
2021 Q1 613 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2023 · 1 incident

January 29, 2023 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Twin Pines Minerals LLC · Struck by... (Not Elsewhere Classified)

Using a cutoff wheel on a handheld grinder. Kicked back and hit left shin resulting in 8 stitches. The guard was on the tool and the employee was wearing all proper PPE's

2022 · 1 incident

July 30, 2022 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Twin Pines Minerals LLC · Contact with hot objects or substances

Opened Hot radiator Cap

2021 · 1 incident

August 18, 2021 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Twin Pines Minerals LLC · Over-exertion in lifting objects

Improper lifting techniques, not using assistance

For insurers, brokers, and safety consultants

The full compliance file on Ione Plant

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.