Mining Incidents

Air Capitol Materials: 40 MSHA citations Metal/Non-Metal

Air Capitol Materials · Surface
Wichita, Sedgwick County, KS  ·  Active
MSHA Mine ID: 1401809

Air Capitol Materials 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2020
40
citations
3
significant & substantial
$10,757
proposed penalties
$10,757
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2020
17
inspections on record
199
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: 199 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Air Capitol Materials 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
32 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-27.
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.
7.5%
significant & substantial
0.0%
high negligence or reckless
7.5%
reasonably likely or greater
72.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.0% low, 95.0% moderate, 0.0% 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: 2025-09-09
0%
of limit-tested samples over the exposure limit
10
samples
5
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
  • Nuisance dust, total, <1% Qtz4
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-09-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Dredge/Barge Operator
2025-09-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Rotary Bucket Ex. Operator
2025-09-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Sand Filler (Wet)
2025-09-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Front-end Loader Operator
2022-10-12 Respirable dust, <.1mg 0 Building Repair/Maint.
2022-10-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-10-12 Nuisance dust, respirable, <1% Qtz 0.23 10 0.02 Building Repair/Maint.
2021-09-21 Respirable dust, <.1mg 0 Dredge/Barge Operator
2021-09-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-09-21 Respirable dust, <.1mg 0 Dry Screen Plant Operator
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
  1. Air Capitol Materials 2019 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 10
2025 8
2024 9
2023 6
2022 7
2021 8
2020 3
Source: MSHA quarterly employment and production, updated weekly.

Air Capitol Materials sits in Sedgwick County, Kansas, where the Census mining category is 0.3% 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.
Sedgwick County, Kansas · Population 524,810
0.3%
Mining share of county employment
$67,675
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
2026 Q2 5,078 6 1 1181.6
2026 Q1 4,910 0 0 0.0
2025 Q4 4,492 8 0 1780.9
2025 Q3 4,450 0 0 0.0
2025 Q2 4,658 3 0 644.1
2025 Q1 4,344 2 0 460.4
2024 Q4 4,380 0 0 0.0
2024 Q3 5,135 0 0 0.0
Show 16 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 5,009 0 0 0.0
2024 Q1 3,406 0 0 0.0
2023 Q4 3,376 1 0 296.2
2023 Q3 2,984 0 0 0.0
2023 Q2 3,858 3 0 777.6
2023 Q1 3,016 0 0 0.0
2022 Q4 3,137 3 0 956.3
2022 Q3 3,328 0 0 0.0
2022 Q2 3,653 0 0 0.0
2022 Q1 3,377 2 0 592.2
2021 Q4 3,980 0 0 0.0
2021 Q3 4,120 0 0 0.0
2021 Q2 4,490 0 0 0.0
2021 Q1 2,631 6 0 2280.5
2020 Q4 560 0 0 0.0
2020 Q3 64 4 1 62500.0

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.