Mining Incidents

Delta Mine: 31 MSHA citations Metal/Non-Metal

Tomahawk Construction LLC · Surface
Felda, Hendry County, FL  ·  Intermittent
MSHA Mine ID: 0801415

Delta Mine has $5K in proposed MSHA penalties and $1K 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
Dec 2018
Compliance record
MSHA citations since 2017
31
citations
9
significant & substantial
$5,119
proposed penalties
$3,812
paid to date
74% of proposed penalties paid to date, a $1,307 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
19
inspections on record
158
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: 158 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Delta Mine has $5K in proposed MSHA penalties and $1K 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.
$5K
proposed penalties
$5K
current assessed
$4K
paid to date
$1K
outstanding
31 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-11-15.
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.
29.0%
significant & substantial
12.9%
high negligence or reckless
29.0%
reasonably likely or greater
35.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 3.2% low, 83.9% moderate, 12.9% 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: 2023-05-12, 3 years ago
7
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg7
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-05-12 Respirable dust, <.1mg 0 Backhoe Operator
2023-05-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-05-12 Respirable dust, <.1mg 0 Bulldozer Operator
2018-01-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-01-03 Respirable dust, <.1mg 0 Supervisor, Co. Official
2018-01-03 Respirable dust, <.1mg 0 Backhoe Operator
2018-01-03 Respirable dust, <.1mg 0 Backhoe 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. Delta Materials LLC 2017 to 2020
  2. Delta Aggregate, LLC 2020 to 2025
  3. Tomahawk Construction LLC 2025 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 6
2024 4
2023 4
2021 11
2018 5
2017 4
Source: MSHA quarterly employment and production, updated weekly.

Delta Mine sits in Hendry County, Florida, 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.
Hendry County, Florida · Population 40,798
0.3%
Mining share of county employment
$53,044
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 235 0 0 0.0
2026 Q1 199 0 0 0.0
2025 Q4 734 0 0 0.0
2025 Q3 944 0 0 0.0
2024 Q1 1,931 5 1 2589.3
2023 Q4 2,839 0 0 0.0
2023 Q3 2,634 0 0 0.0
2023 Q2 2,664 4 0 1501.5
Show 9 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q1 1,964 0 0 0.0
2021 Q2 15 1 0 66666.7
2018 Q4 4,310 6 3 1392.1
2018 Q3 3,916 0 0 0.0
2018 Q2 2,360 4 1 1694.9
2018 Q1 2,750 3 1 1090.9
2017 Q4 2,900 0 0 0.0
2017 Q3 1,552 2 2 1288.7
2017 Q2 2,329 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2018 · 1 incident

December 13, 2018 FL · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler SLIP OR FALL OF PERSON
Delta Materials LLC · Fall onto or against objects

Employee slipped on Cat 365 machine and fell. Their finger went into a small hole in machine and cut the right middle finger.