Dakota Aggregates LLC · (Not Elsewhere Classified)
Code 26 - Moderate loss in hearing
UMore Park Mining Operation Metal/Non-Metal
Dakota Aggregates LLC
· Surface
Controlled by
Cemstone Concrete Solutions
Rosemount,
Dakota County,
MN
·
Intermittent
MSHA Mine ID: 2103793
UMore Park Mining Operation has $6K 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
- 3
- Years on record
- 2018–2025
- Latest incident
- Feb 2025
Compliance record
MSHA citations since 2014
46
citations
2
significant & substantial
$6,035
proposed penalties
$6,035
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2013
15
inspections on record
361
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: 361 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
UMore Park Mining Operation has $6K 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.$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
46 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-11-04.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 | 10,656 | 5 | 1 | 469.2 |
| 2025 Q3 | 15,200 | 0 | 0 | 0.0 |
| 2025 Q2 | 13,844 | 4 | 0 | 288.9 |
| 2025 Q1 | 8,764 | 0 | 0 | 0.0 |
| 2024 Q4 | 15,785 | 0 | 0 | 0.0 |
| 2024 Q3 | 22,195 | 0 | 0 | 0.0 |
| 2024 Q2 | 25,440 | 0 | 0 | 0.0 |
| 2023 Q4 | 14,250 | 3 | 0 | 210.5 |
Show 42 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q3 | 20,376 | 3 | 0 | 147.2 |
| 2023 Q2 | 21,966 | 0 | 0 | 0.0 |
| 2023 Q1 | 4,550 | 0 | 0 | 0.0 |
| 2022 Q4 | 14,528 | 0 | 0 | 0.0 |
| 2022 Q3 | 22,324 | 0 | 0 | 0.0 |
| 2022 Q2 | 18,211 | 4 | 0 | 219.6 |
| 2022 Q1 | 2,320 | 0 | 0 | 0.0 |
| 2021 Q4 | 16,679 | 0 | 0 | 0.0 |
| 2021 Q3 | 20,651 | 0 | 0 | 0.0 |
| 2021 Q2 | 19,656 | 3 | 0 | 152.6 |
| 2021 Q1 | 3,742 | 0 | 0 | 0.0 |
| 2020 Q4 | 13,473 | 0 | 0 | 0.0 |
| 2020 Q3 | 22,217 | 0 | 0 | 0.0 |
| 2020 Q2 | 22,015 | 4 | 0 | 181.7 |
| 2020 Q1 | 9,327 | 0 | 0 | 0.0 |
| 2019 Q4 | 13,905 | 0 | 0 | 0.0 |
| 2019 Q3 | 20,213 | 0 | 0 | 0.0 |
| 2019 Q2 | 21,024 | 0 | 0 | 0.0 |
| 2019 Q1 | 5,458 | 0 | 0 | 0.0 |
| 2018 Q4 | 10,465 | 3 | 0 | 286.7 |
| 2018 Q3 | 17,135 | 4 | 0 | 233.4 |
| 2018 Q2 | 10,369 | 0 | 0 | 0.0 |
| 2018 Q1 | 3,414 | 0 | 0 | 0.0 |
| 2017 Q4 | 8,222 | 0 | 0 | 0.0 |
| 2017 Q3 | 11,198 | 0 | 0 | 0.0 |
| 2017 Q2 | 10,440 | 0 | 0 | 0.0 |
| 2017 Q1 | 3,805 | 0 | 0 | 0.0 |
| 2016 Q4 | 7,505 | 2 | 0 | 266.5 |
| 2016 Q3 | 11,669 | 0 | 0 | 0.0 |
| 2016 Q2 | 15,016 | 0 | 0 | 0.0 |
| 2016 Q1 | 2,691 | 0 | 0 | 0.0 |
| 2015 Q4 | 8,011 | 5 | 0 | 624.1 |
| 2015 Q3 | 9,171 | 2 | 0 | 218.1 |
| 2015 Q2 | 2,334 | 0 | 0 | 0.0 |
| 2015 Q1 | 2,208 | 0 | 0 | 0.0 |
| 2014 Q4 | 3,914 | 0 | 0 | 0.0 |
| 2014 Q3 | 6,263 | 4 | 1 | 638.7 |
| 2014 Q2 | 5,385 | 0 | 0 | 0.0 |
| 2014 Q1 | 472 | 0 | 0 | 0.0 |
| 2013 Q4 | 488 | 0 | 0 | 0.0 |
| 2013 Q3 | 496 | 0 | 0 | 0.0 |
| 2013 Q2 | 16 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
3 on file2025 · 1 incident
2024 · 1 incident
Dakota Aggregates LLC · Flash burns (electric)
Electrical Contractor was wiring drive for water pump when Arc Flash occurred. Contractor was working alone and doesn't remember what could have caused accident. Contractor suffered burns to arms.
2018 · 1 incident
Dakota Aggregates LLC · Fall onto or against objects
Employee was using a 3/4" ratchet & socket to tighten a conveyor belt at the tail pulley. The ratchet slipped off causing the employee to fall forward hitting head/eye on guarding framework.
For insurers, brokers, and safety consultants
The full compliance file on UMore Park Mining Operation
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.