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: 47 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
I-12 has $275 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.
$275
proposed penalties
$275
current assessed
$275
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2001-01-03.
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.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
ⓘA sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.
Metal and nonmetal contaminants (personal samples)
ⓘMany samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2001-01-03, 25 years ago
5
samples
0
limit-tested
Most sampled contaminants
Unlisted Particulate, total, <1% Qtz5
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2001-01-03
Unlisted Particulate, total, <1% Qtz
2.34
Miner, Drift
2001-01-03
Unlisted Particulate, total, <1% Qtz
0.6
Hoist Operator
2001-01-03
Unlisted Particulate, total, <1% Qtz
4.15
Miner, Drift
2001-01-03
Unlisted Particulate, total, <1% Qtz
3.82
Miner, Drift
2001-01-03
Unlisted Particulate, total, <1% Qtz
3.44
Miner, Drift
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
1995
5
1994
4
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
I-12 sits in Uintah County, Utah, where the Census mining category is 12.5% 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.
Uintah County, Utah · Population 36,458
12.5%
Mining share of county employment
$69,861
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
C L D Inc · Fall to lower level, (Not Elsewhere Classified)
I WAS COMING DOWN SLOPE AND TIMBERS WERE CLOSE TO SLOPE AND IT WAS EASIER TOCLIMB OVER THAN TO GO UNDER THEM, SO I STEPPED UP ON THE TIMBER AND MY FEET SLIPPED AND I CAME DOWN ON MY BACK RIGHT ON THE TIMBER. I SLIDE DOWN THE SLOPE 40-50'.
Related mines
Other mines operated by Ziegler Chemical & Mineral Corp