Mining Incidents

Portable #4: 2 MSHA citations Metal/Non-Metal

Controlled by Sandra Lee Williams
Picher, Cherokee County, KS  ·  Intermittent
MSHA Mine ID: 1401792

Portable #4 has $242 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
May 2018
Compliance record
MSHA citations since 2019
2
citations
0
significant & substantial
$242
proposed penalties
$242
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
11
inspections on record
99
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: 99 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable #4 has $242 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.
$242
proposed penalties
$242
current assessed
$242
paid to date
$0
outstanding
2 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2019-03-14.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
50.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% 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: 2025-08-13
1
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg1
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-13 Respirable dust, <.1mg 0 Front-end Loader 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. Williams Diversified Materials, Inc. 2017 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 2
2020 1
2019 2
2018 2
2017 2
Source: MSHA quarterly employment and production, updated weekly.

Portable #4 sits in Cherokee County, Kansas, 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.
Cherokee County, Kansas · Population 19,236
0.2%
Mining share of county employment
$58,274
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 1 0 0 0.0
2026 Q1 963 0 0 0.0
2025 Q4 1 0 0 0.0
2025 Q3 722 0 0 0.0
2025 Q2 172 0 0 0.0
2025 Q1 181 0 0 0.0
2024 Q4 116 0 0 0.0
2024 Q3 17 0 0 0.0
Show 27 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 621 0 0 0.0
2024 Q1 79 0 0 0.0
2023 Q4 34 0 0 0.0
2023 Q3 1 0 0 0.0
2023 Q2 1 0 0 0.0
2023 Q1 33 0 0 0.0
2022 Q4 278 0 0 0.0
2022 Q3 193 0 0 0.0
2022 Q2 1 0 0 0.0
2022 Q1 1 0 0 0.0
2021 Q4 26 0 0 0.0
2021 Q3 246 0 0 0.0
2021 Q2 287 0 0 0.0
2021 Q1 1 0 0 0.0
2020 Q4 1 0 0 0.0
2020 Q3 87 0 0 0.0
2020 Q2 0 0 0
2020 Q1 17 0 0 0.0
2019 Q4 1,303 0 0 0.0
2019 Q3 408 0 0 0.0
2019 Q2 308 0 0 0.0
2019 Q1 500 2 0 4000.0
2018 Q4 50 0 0 0.0
2018 Q3 71 0 0 0.0
2018 Q2 64 0 0 0.0
2018 Q1 350 0 0 0.0
2017 Q4 117 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2018 · 1 incident

May 9, 2018 KS · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Williams Diversified Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was using wrench to install rollers on portable plant. Felt a "pop" in rt shoulder. Refused medical treatment until 05/16/18. Placed on light duty. No light duty available. Returned to regular duty 05/22/18. Follow-up with dr 5/31. Placed on light duty. No light duty available.