Data / Mines / Colorado / Mesa County
Mines in Mesa County, Colorado: 20 open mines
MSHA lists 20 open mines in Mesa County, Colorado, run by 9 operators and employing 74 people. Since January 1, 2022 its inspectors issued 85 citations and orders there with $14,086 in proposed penalties, and operators reported 8 injury or illness cases. The operators with the most open mines are Oldcastle SW Group, Inc.; Arizona Materials; Whitewater Building Materials Corp. Data from MSHA, November 6, 2026.
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- Open mines
- 20
- Operators
- 9
- Employees
- 74
- Intermittent
- 12
- Active
- 6
- NonProducing
- 1
- Temporarily Idled
- 1
- Citations and orders since January 1, 2022
- 85
- Significant and substantial
- 8 (9.4%)
- Closure orders
- 1
- High negligence or reckless
- 2
- Proposed penalties
- $14,086
- Amount paid so far
- $14,086
- Inspections
- 160
- Inspector hours on site
- 792
- Citations per inspection
- 0.53 (all mines 2.30)
- Accident reports
- 8
- Injury and illness cases
- 8
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Mesa County, Colorado
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Oldcastle SW Group, Inc. | 7 | 25 | 28 | $4,906 | 2 |
| Arizona Materials | 4 | 15 | 13 | $2,498 | 0 |
| Whitewater Building Materials Corp | 2 | 15 | 14 | $2,086 | 5 |
| Parkerson Construction Inc | 2 | 4 | 8 | $989 | 0 |
| Sunroc Corporation | 1 | 4 | 8 | $1,320 | 0 |
| Efr Colorado Plateau LLC | 1 | 3 | 7 | $1,005 | 0 |
| Moores Mining LLC | 1 | 6 | 4 | $841 | 0 |
| Upland Gravel LLC | 1 | 2 | 2 | $294 | 1 |
| CW Construction, LLC | 1 | 0 | 1 | $147 | 0 |
Operators with the most citations in Mesa County, Colorado
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Oldcastle SW Group, Inc. | 7 | 25 | 28 | $4,906 | 2 |
| Whitewater Building Materials Corp | 2 | 15 | 14 | $2,086 | 5 |
| Arizona Materials | 4 | 15 | 13 | $2,498 | 0 |
| Parkerson Construction Inc | 2 | 4 | 8 | $989 | 0 |
| Sunroc Corporation | 1 | 4 | 8 | $1,320 | 0 |
| Efr Colorado Plateau LLC | 1 | 3 | 7 | $1,005 | 0 |
| Moores Mining LLC | 1 | 6 | 4 | $841 | 0 |
| Upland Gravel LLC | 1 | 2 | 2 | $294 | 1 |
| CW Construction, LLC | 1 | 0 | 1 | $147 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Whitewater #81 | Whitewater Building Materials Corp | Mesa County, CO | Construction sand and gravel | 12 | 10 |
| CR9 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 7 | 9 |
| Crusher 1 | Arizona Materials | Mesa County, CO | Construction sand and gravel | 5 | 8 |
| Suncore West Colorado | Sunroc Corporation | Mesa County, CO | Construction sand and gravel | 4 | 8 |
| Whirlwind Mine | Efr Colorado Plateau LLC | Mesa County, CO | Uranium-vanadium ore | 3 | 7 |
| SP3 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 3 | 6 |
| Crusher 2 | Parkerson Construction Inc | Mesa County, CO | Construction sand and gravel | 2 | 6 |
| WP2 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 2 | 6 |
| Moores Pit | Moores Mining LLC | Mesa County, CO | Construction sand and gravel | 6 | 4 |
| CR10 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 4 | 4 |
| Whitewater #71 | Whitewater Building Materials Corp | Mesa County, CO | Construction sand and gravel | 3 | 4 |
| WP1 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 3 | 3 |
| Washplant 1 | Arizona Materials | Mesa County, CO | Construction sand and gravel | 3 | 3 |
| Washplant 3 | Arizona Materials | Mesa County, CO | Construction sand and gravel | 3 | 2 |
| Crusher 1 | Parkerson Construction Inc | Mesa County, CO | Construction sand and gravel | 2 | 2 |
| Upland Pit #3 | Upland Gravel LLC | Mesa County, CO | Construction sand and gravel | 2 | 2 |
| Gunnison River Gravel Pits 1 & 5 | CW Construction, LLC | Mesa County, CO | Construction sand and gravel | 0 | 1 |
| CR 6 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 5 | 0 |
| Crusher #6 | Arizona Materials | Mesa County, CO | Construction sand and gravel | 4 | 0 |
| SP 2 | Oldcastle SW Group, Inc. | Mesa County, CO | Construction sand and gravel | 1 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 19 | 95% |
| Uranium-vanadium ore | 1 | 5% |
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 | 8 | 2 | $1,681 | 3 |
| 2023 | 18 | 0 | $2,443 | 0 |
| 2024 | 16 | 2 | $3,257 | 4 |
| 2025 | 30 | 3 | $4,783 | 0 |
| 2026 | 13 | 1 | $1,922 | 1 |
Standards cited most at mines in Mesa County, Colorado
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 56.12008 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 47.41 | Hazard communication | 4 |
| 30 CFR 56.12013 | Surface metal and nonmetal mines | 3 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 3 |
| 30 CFR 56.14116 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 2 |
| 30 CFR 57.14116 | Underground metal and nonmetal mines | 2 |
| 30 CFR 56.3130 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4430 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at mines in Mesa County, Colorado
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 6 |
| No lost time, or an occupational illness | 2 |
What the accident reports at mines in Mesa County, Colorado describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 3 |
| Handling of materials | 3 |
| Machinery | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at mines in Mesa County, Colorado
| Equipment | Reports |
|---|---|
| Front-end loader | 2 |
| Hand tools (powered) | 1 |
| Welding machine | 1 |
| Ore haulage trucks - off highway trucks | 1 |
| Hand tools (not powered) | 1 |
| Conveyor | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.