Cantera Stripping Crew: 11 MSHA citations Metal/Non-Metal
Cantera Stripping Crew has no reportable incidents on file with MSHA. MSHA has proposed $4K in penalties since 2024, with $949 outstanding.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2024
11
citations
3
significant & substantial
$3,677
proposed penalties
$2,728
paid to date
74% of proposed penalties paid to date, a $949 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2024
6
inspections on record
89
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: 89 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Cantera Stripping Crew has $4K in proposed MSHA penalties and $949 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.$4K
proposed penalties
$4K
current assessed
$3K
paid to date
$949
outstanding
9 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-15.
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.27.3%
significant & substantial
18.2%
high negligence or reckless
27.3%
reasonably likely or greater
45.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.1% low, 72.7% moderate, 18.2% high, 0.0% reckless.
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: 2025-02-26
ⓘ
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.6
samples
0
limit-tested
Most sampled contaminants
- Respirable dust, <.1mg5
- Quartz, respirable, >1% Qtz1
Show the individual readings (6)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2025-02-26 | Respirable dust, <.1mg | 0 | Road Grader Operator | ||
| 2025-02-26 | Respirable dust, <.1mg | 0 | Rotary Bucket Ex. Operator | ||
| 2025-02-26 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2025-02-26 | Respirable dust, <.1mg | 0 | Bulldozer Operator | ||
| 2024-09-11 | Quartz, respirable, >1% Qtz | 0.15 | Front-end Loader Operator | ||
| 2024-09-11 | Respirable dust, <.1mg | 0 | Truck Driver |
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.
Ownership history
- Cantera Aggregates 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 8 |
| 2025 | 8 |
| 2024 | 4 |
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Cantera Stripping Crew sits in Van Buren County, Iowa, where the Census mining category is 0.2% 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.Van Buren County, Iowa · Population 7,236
0.2%
Mining share of county employment
$60,183
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
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Citations per million reported employee-hours. Rates begin in 2000; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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 | 4,174 | 1 | 0 | 239.6 |
| 2026 Q1 | 4,373 | 0 | 0 | 0.0 |
| 2025 Q4 | 8,779 | 0 | 0 | 0.0 |
| 2025 Q3 | 5,248 | 0 | 0 | 0.0 |
| 2025 Q2 | 3,470 | 0 | 0 | 0.0 |
| 2025 Q1 | 2,076 | 3 | 2 | 1445.1 |
| 2024 Q4 | 1,266 | 0 | 0 | 0.0 |
| 2024 Q3 | 2,399 | 5 | 0 | 2084.2 |
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.