Mining Incidents

Heartland Aggregate Mining Metal/Non-Metal

Alma, Park County, CO  ·  Active
MSHA Mine ID: 0505085

Heartland Aggregate Mining has $14K in proposed MSHA penalties and $4K 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
Jul 2018
Compliance record
MSHA citations since 2018
55
citations
10
significant & substantial
$13,873
proposed penalties
$10,302
paid to date
74% of proposed penalties paid to date, a $3,571 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
22
inspections on record
309
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: 309 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Heartland Aggregate Mining has $14K in proposed MSHA penalties and $4K 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.
$14K
proposed penalties
$14K
current assessed
$10K
paid to date
$4K
outstanding
52 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-15.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 1,410 2 0 1418.4
2025 Q3 3,235 4 2 1236.5
2025 Q2 1,395 0 0 0.0
2025 Q1 2,177 0 0 0.0
2024 Q4 2,945 2 0 679.1
2024 Q3 1,895 0 0 0.0
2024 Q2 4,095 0 0 0.0
2024 Q1 4,519 2 0 442.6
Show 24 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 2,105 1 0 475.1
2023 Q3 4,210 7 2 1662.7
2023 Q2 3,810 0 0 0.0
2023 Q1 2,455 0 0 0.0
2022 Q4 2,283 3 0 1314.1
2022 Q3 1,967 1 0 508.4
2022 Q2 3,247 0 0 0.0
2022 Q1 1,837 1 0 544.4
2021 Q4 2,562 0 0 0.0
2021 Q3 4,229 0 0 0.0
2021 Q2 6,619 8 1 1208.6
2021 Q1 2,372 0 0 0.0
2020 Q4 2,731 0 0 0.0
2020 Q3 3,895 0 0 0.0
2020 Q2 3,094 14 3 4524.9
2020 Q1 783 0 0 0.0
2019 Q4 2,459 0 0 0.0
2019 Q3 3,949 0 0 0.0
2019 Q2 2,729 2 0 732.9
2019 Q1 837 0 0 0.0
2018 Q4 1,911 0 0 0.0
2018 Q3 3,193 1 0 313.2
2018 Q2 2,503 0 0 0.0
2018 Q1 901 4 0 4439.5
No fatalities recorded at this mine.

Reportable incidents

1 on file

2018 · 1 incident

July 2, 2018 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Rosebud Excavating, Inc. · Fall onto or against objects

Lost footing & landed on beam. Taken to mine office, then to Summit Medical Center.

For insurers, brokers, and safety consultants

The full compliance file on Heartland Aggregate Mining

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.