Data / Mines / Nevada / Grefco Mine & Mill
Grefco Mine & Mill, Nye County, Nevada: 36 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Grefco Mine & Mill is an active diatomaceous earth (diatomite) surface mine in Nye County, Nevada, operated by Grefco Minerals LLC with 15 employees on MSHA's record (mine ID 2600125). Since January 1, 2022 MSHA inspectors issued 36 citations and orders there with $4,504 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Grefco Mine & Mill (MSHA mine ID 2600125) in Nye County, Nevada: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2600125
- Status
- Active since October 1, 2013
- Main commodity
- Diatomaceous earth (diatomite)
- Mine type
- Surface
- County
- Nye County, Nevada
- Nearest town
- Coaldale
- Operator
- Grefco Minerals LLC
- Parent company
- Dicalite Management Group LLC
- Employees
- 15
- MSHA field office
- Henderson NV Field Office
- Citations and orders since January 1, 2022
- 36
- Significant and substantial
- 2 (5.6%)
- Closure orders
- 0
- High negligence or reckless
- 2
- Proposed penalties
- $4,504
- Amount paid so far
- $4,504
- Inspections
- 10
- Inspector hours on site
- 79
- Citations per inspection
- 3.60 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- November 3, 2026
- Citations issued to contractors here
- 2 ($302 proposed)
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 | 5 | 0 | $665 | 0 |
| 2023 | 4 | 0 | $572 | 0 |
| 2024 | 8 | 0 | $1,176 | 0 |
| 2025 | 2 | 0 | $302 | 0 |
| 2026 | 17 | 2 | $1,789 | 0 |
Standards cited most at Grefco Mine & Mill
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 | 6 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 2 |
| 30 CFR 47.41 | Hazard communication | 2 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 1 |
| 30 CFR 47.51 | Hazard communication | 1 |
| 30 CFR 48.11 | Training of miners | 1 |
| 30 CFR 45.4 | Part 45 | 1 |
| 30 CFR 56.13015 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4011 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 1 |
Other open mines in Nye County, Nevada
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Smoky Valley Common Operations | Round Mountain Gold Corporation | Nye County, NV | Gold ore | 698 | 203 |
| Martin Marietta, Gabbs Mine | Martin Marietta Materials, Inc. | Nye County, NV | Industrial inorg. chemicals | 115 | 144 |
| Manhattan Gulch | Manhattan Gulch, LLC | Nye County, NV | Gold ore | 1 | 64 |
| Morales Gravel Pit | Morales Construction Inc. | Nye County, NV | Construction sand and gravel | 3 | 58 |
| Wulfenstein Pit | Wulfenstein Construction Company Inc | Nye County, NV | Construction sand and gravel | 17 | 52 |
| Beatty | Rock Pros USA | Nye County, NV | Construction sand and gravel | 4 | 40 |
| Amargosa Quarry and Plant | Martin Marietta Materials, Inc. | Nye County, NV | Clay, ceramic, refractory mnls. | 47 | 33 |
| Cind R Lite Cinder Cone Mine | Allied Building Materials Inc / Cind R Lite Block | Nye County, NV | Pumice | 5 | 33 |
| Pahrump Community Pit And Mill | Wulfenstein Aggregates LLC | Nye County, NV | Construction sand and gravel | 6 | 32 |
| Gamebird Pit | Wulfenstein Construction Company Inc | Nye County, NV | Construction sand and gravel | 2 | 16 |
| Shamrock Pit | K & R Gravel, LLC | Nye County, NV | Construction sand and gravel | 2 | 13 |
| Wulfenstein Portable | Wulfenstein Construction Company Inc | Nye County, NV | Construction sand and gravel | 4 | 12 |
| GoldWedge | GoldWedge, LLC | Nye County, NV | Gold ore | 0 | 12 |
| Nevada Quality Rock | Nevada Quality Rock Inc | Nye County, NV | Construction sand and gravel | 2 | 11 |
| Smoky Valley Common Operation-UG | Round Mountain Gold Corporation | Nye County, NV | Gold ore | 50 | 9 |
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.