Mining Incidents

Three Rivers Project: 6 MSHA citations Metal/Non-Metal

Skwentna, Matanuska-Susitna County, AK  ·  Abandoned
MSHA Mine ID: 5002061

Three Rivers Project has $11K 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
1
Years on record
2018
Latest incident
Aug 2018
Compliance record
MSHA citations since 2018
6
citations
4
significant & substantial
$11,484
proposed penalties
$11,484
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
1
inspections on record
30
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: 30 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Three Rivers Project has $11K 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
6 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2018-08-29.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
66.7%
significant & substantial
100.0%
high negligence or reckless
66.7%
reasonably likely or greater
100.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 0.0% moderate, 100.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Breaking Ground Resources 2017 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 5
Source: MSHA quarterly employment and production, updated weekly.

Three Rivers Project sits in Matanuska-Susitna Borough, Alaska, where the Census mining category is 3.1% 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.
Matanuska-Susitna Borough, Alaska · Population 110,677
3.1%
Mining share of county employment
$90,625
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
2018 Q3 8,196 6 4 732.1
2018 Q2 2,832 0 0 0.0
2018 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2018 · 1 incident

August 10, 2018 AK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Breaking Ground Resources · Struck by... (Not Elsewhere Classified)

Employee was grinding down old welds inside the trommel when the grinder kicked back, left hand slid forward resulting in left middle finger wedging in between the grinding disc & the grinder guard. This cause a moderate abrasion near the 3rd knuckle. The employee cleaned & bandage it then returned to work.