Mining Incidents

Hatchery: 19 MSHA citations Metal/Non-Metal

Henderson, Adams County, CO  ·  Active
MSHA Mine ID: 0500954

Hatchery has $2K 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
5
Years on record
1985–2024
Latest incident
Jun 2024
Compliance record
MSHA citations since 2017
19
citations
1
significant & substantial
$2,354
proposed penalties
$2,354
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
17
inspections on record
198
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: 198 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Hatchery has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
19 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-07-30.
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.
5.3%
significant & substantial
0.0%
high negligence or reckless
5.3%
reasonably likely or greater
15.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 15.8% low, 84.2% 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: 2022-07-14, 4 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
  • Quartz, respirable, >1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-07-14 Respirable dust, <.1mg 0 Cleanup Man
2022-07-14 Quartz, respirable, >1% Qtz 0.3 0.54 0.56 Cleanup Man
2022-07-14 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.

Hatchery recorded 0.00 reportable injury cases per 100 full-time workers in 2022.

Injury rate, 2022
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.12 cases per 100 workers.
In Colorado, metal and nonmetal mining averaged 2.14 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 9.18 9.18 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Albert Frei & Sons Inc 1985 to 2024
  2. Martin Marietta Materials 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 4
2024 7
2023 8
2022 10
2021 9
2020 10
2019 10
2018 10
2017 11
Source: MSHA quarterly employment and production, updated weekly.

Hatchery sits in Adams County, Colorado, where the Census mining category is 0.9% 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.
Adams County, Colorado · Population 524,408
0.9%
Mining share of county employment
$91,387
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 1,267 0 0 0.0
2026 Q1 1,152 0 0 0.0
2025 Q4 1,017 0 0 0.0
2025 Q3 1,014 0 0 0.0
2025 Q2 1,769 0 0 0.0
2025 Q1 2,514 0 0 0.0
2024 Q4 3,012 0 0 0.0
2024 Q3 4,039 1 0 247.6
Show 28 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,849 0 0 0.0
2024 Q1 4,135 0 0 0.0
2023 Q4 4,804 0 0 0.0
2023 Q3 3,995 0 0 0.0
2023 Q2 4,855 0 0 0.0
2023 Q1 4,167 1 0 240.0
2022 Q4 5,100 0 0 0.0
2022 Q3 5,636 0 0 0.0
2022 Q2 7,334 0 0 0.0
2022 Q1 4,959 1 0 201.7
2021 Q4 6,613 0 0 0.0
2021 Q3 5,375 0 0 0.0
2021 Q2 5,693 1 0 175.7
2021 Q1 5,675 0 0 0.0
2020 Q4 5,001 1 0 200.0
2020 Q3 5,660 0 0 0.0
2020 Q2 5,954 2 0 335.9
2020 Q1 6,498 0 0 0.0
2019 Q4 6,612 0 0 0.0
2019 Q3 5,544 7 1 1262.6
2019 Q2 5,912 0 0 0.0
2019 Q1 4,297 0 0 0.0
2018 Q4 5,013 1 0 199.5
2018 Q3 6,571 1 0 152.2
2018 Q2 4,174 0 0 0.0
2018 Q1 6,020 0 0 0.0
2017 Q4 6,759 3 0 443.9
2017 Q3 6,463 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

5 on file

2024 · 1 incident

June 13, 2024 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Materials · Struck by... (Not Elsewhere Classified)

The mobile mechanic was preparing for welding activity by grinding and prepping work area. While using the grinder it kicked back and struck the mechanic on the right cheek causing a laceration.

2018 · 1 incident

March 9, 2018 CO · Metal/Non-Metal master mechanic, foreman, supervisor SLIP OR FALL OF PERSON
Albert Frei & Sons Inc · Fall down stairs

Miner/Supervisor was assisting with a screen change on the 6x20 portable screen plant. Supervisor was exiting the screen walkway and stair when they turned and missed the stair and fell to the ground.

1992 · 1 incident

April 3, 1992 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Albert Frei & Sons Inc · Fall onto or against objects

CLEANING OFF HOPPER STEPPED ON TO CONV, CLIMBED OVER MOTOR LOST FOOTING FELL IN MOTOR JAMMING L ELBOW

1986 · 1 incident

June 27, 1986 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Albert Frei & Sons Inc · Fall to the walkway or working surface

GOING TO CHECK 7O SEE IF MACHINERY WORKING, TWISTED FOOT IN SAND.

1985 · 1 incident

October 18, 1985 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STEPPING OR KNEELING ON OBJECT
Albert Frei & Sons Inc · Struck against stationary object

WHILE RUNNING P5ANT, BELT STARTED TO SLIP, RAN TO SHUT OFF PLANT TWISTED KNEE ON ROCK