Data / Mines / Minnesota / UMore Park Mining Operation
UMore Park Mining Operation: 19 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
UMore Park Mining Operation is an intermittent construction sand and gravel surface mine in Dakota County, Minnesota, operated by Dakota Aggregates LLC with 7 employees on MSHA's record (mine ID 2103793). Since January 1, 2022 MSHA inspectors issued 19 citations and orders there with $2,865 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases.
The request: Watch UMore Park Mining Operation (MSHA mine ID 2103793) in Dakota County, Minnesota: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2103793
- Status
- Intermittent since April 12, 2013
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Dakota County, Minnesota
- Nearest town
- Rosemount
- Operator
- Dakota Aggregates LLC
- Parent company
- Cemstone Concrete Solutions
- Employees
- 7
- MSHA field office
- Duluth MN Field Office
- Citations and orders since January 1, 2022
- 19
- Significant and substantial
- 1 (5.3%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $2,865
- Amount paid so far
- $2,865
- Inspections
- 6
- Inspector hours on site
- 114
- Citations per inspection
- 3.17 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- October 30, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 4 | 0 | $532 | 0 |
| 2023 | 6 | 0 | $858 | 0 |
| 2024 | 0 | 0 | $0 | 1 |
| 2025 | 9 | 1 | $1,475 | 1 |
Standards cited most at UMore Park Mining Operation
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14115 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4603 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at UMore Park Mining Operation
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 1 |
What the accident reports at UMore Park Mining Operation describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Electrical | 1 |
| Disorders (repeated trauma) | 1 |
Other open mines in Dakota County, Minnesota
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Fischer Sand & Aggregate | Fischer Sand & Aggregate LLP | Dakota County, MN | Construction sand and gravel | 12 | 20 |
| Amrize Empire Plant | Amrize Mid-America Inc. | Dakota County, MN | Construction sand and gravel | 16 | 16 |
| County Line, Larson Pit | County Line Aggregate Inc | Dakota County, MN | Construction sand and gravel | 3 | 14 |
| Wash Plant #2(Randolph) | County Line Aggregate Inc | Dakota County, MN | Crushed, broken limestone | 2 | 13 |
| PBP-1 | Pine Bend Paving, Inc. | Dakota County, MN | Crushed, broken limestone | 2 | 13 |
| Hastings Quarry | Solberg Aggregate Inc. | Dakota County, MN | Crushed, broken limestone | 3 | 11 |
| Knopik Crushing Inc | Knopik Crushing Inc | Dakota County, MN | Construction sand and gravel | 3 | 9 |
| Lippmann | Knopik Crushing Inc | Dakota County, MN | Sand, common | 3 | 9 |
| Portable Screener | Minnesota Dirt Works | Dakota County, MN | Construction sand and gravel | 2 | 9 |
| KMM Burnsville Quarry | Kraemer Mining & Materials, Inc. | Dakota County, MN | Crushed, broken limestone | 34 | 7 |
| Empire Rock | Fischer Mining LLC | Dakota County, MN | Construction sand and gravel | 7 | 5 |
| Inver Grove Pit | Bituminous Roadways, Inc. | Dakota County, MN | Construction sand and gravel | 2 | 5 |
| McNamara Contracting Inc | McNamara Contracting Inc | Dakota County, MN | Construction sand and gravel | 6 | 4 |
| Berg's Pit | McNamara Contracting Inc | Dakota County, MN | Construction sand and gravel | 2 | 3 |
| Finlay Powerscreener | Solberg Aggregate Inc. | Dakota County, MN | Construction sand and gravel | 2 | 3 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.