Data / Mines / New Mexico / Sandoval County
Mines in Sandoval County, New Mexico: 8 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 8 open mines in Sandoval County, New Mexico, run by 6 operators and employing 45 people. Since January 1, 2022 its inspectors issued 145 citations and orders there with $24,516 in proposed penalties, and operators reported 19 injury or illness cases. The operators with the most open mines are CalMat Co; Menefee Mining Corp; Mesa Verde Humates, LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 8
- Operators
- 6
- Employees
- 45
- Active
- 6
- Intermittent
- 2
- Citations and orders since January 1, 2022
- 145
- Significant and substantial
- 19 (13.1%)
- Closure orders
- 4
- High negligence or reckless
- 11
- Proposed penalties
- $24,516
- Amount paid so far
- $23,164
- Inspections
- 81
- Inspector hours on site
- 675
- Citations per inspection
- 1.79 (all mines 2.30)
- Accident reports
- 19
- Injury and illness cases
- 19
- Fatalities
- 0
- Latest MSHA record
- October 26, 2026
Operators with the most open mines in Sandoval County, New Mexico
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 |
|---|---|---|---|---|---|
| CalMat Co | 3 | 18 | 17 | $2,338 | 4 |
| Menefee Mining Corp | 1 | 7 | 41 | $8,203 | 0 |
| Mesa Verde Humates, LLC | 1 | 8 | 39 | $6,003 | 2 |
| Horizon Ag Products | 1 | 3 | 33 | $5,632 | 12 |
| American Gypsum Company LLC | 1 | 7 | 9 | $1,470 | 1 |
| Rammsco Operations Inc. | 1 | 2 | 6 | $870 | 0 |
Operators with the most citations in Sandoval County, New Mexico
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Menefee Mining Corp | 1 | 7 | 41 | $8,203 | 0 |
| Mesa Verde Humates, LLC | 1 | 8 | 39 | $6,003 | 2 |
| Horizon Ag Products | 1 | 3 | 33 | $5,632 | 12 |
| CalMat Co | 3 | 18 | 17 | $2,338 | 4 |
| American Gypsum Company LLC | 1 | 7 | 9 | $1,470 | 1 |
| Rammsco Operations Inc. | 1 | 2 | 6 | $870 | 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 |
|---|---|---|---|---|---|
| Black Spring Mine | Menefee Mining Corp | Sandoval County, NM | Misc. nonmetallic mnls. | 7 | 41 |
| Mesa Verde Humates, LLC | Mesa Verde Humates, LLC | Sandoval County, NM | Misc. nonmetallic mnls. | 8 | 39 |
| Horizon Ag Products | Horizon Ag Products | Sandoval County, NM | Chem. and fertil. mnls. | 3 | 33 |
| White Mesa | American Gypsum Company LLC | Sandoval County, NM | Gypsum | 7 | 9 |
| Pena Blanca | CalMat Co | Sandoval County, NM | Construction sand and gravel | 1 | 9 |
| Placitas | CalMat Co | Sandoval County, NM | Construction sand and gravel | 11 | 7 |
| Eagle Mesa Mine | Rammsco Operations Inc. | Sandoval County, NM | Leonardite | 2 | 6 |
| Baca Pit | CalMat Co | Sandoval County, NM | Construction sand and gravel | 6 | 1 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 3 | 37.5% |
| Misc. nonmetallic mnls. | 2 | 25% |
| Gypsum | 1 | 12.5% |
| Leonardite | 1 | 12.5% |
| Chem. and fertil. mnls. | 1 | 12.5% |
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 | 15 | 3 | $2,569 | 4 |
| 2023 | 30 | 3 | $4,760 | 5 |
| 2024 | 35 | 3 | $6,560 | 3 |
| 2025 | 17 | 0 | $3,340 | 4 |
| 2026 | 48 | 10 | $7,287 | 3 |
Standards cited most at mines in Sandoval County, New Mexico
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 | 14 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 6 |
| 30 CFR 47.41 | Hazard communication | 5 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 5 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 5 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14206 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at mines in Sandoval County, New Mexico
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 16 |
| No lost time, or an occupational illness | 3 |
What the accident reports at mines in Sandoval County, New Mexico describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 10 |
| Handling of materials | 6 |
| Other | 2 |
| Powered haulage | 1 |
Equipment named in accident reports at mines in Sandoval County, New Mexico
| Equipment | Reports |
|---|---|
| Front-end loader | 2 |
| Ore haulage trucks - on highway trucks | 1 |
| Auger machine | 1 |
| Forklift | 1 |
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.