Data / Mines / California / Martin Marietta Hughson Plant
Martin Marietta Hughson Plant: 10 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Martin Marietta Hughson Plant is an intermittent construction sand and gravel surface mine in Stanislaus County, California, operated by Recycled Base Materials Inc with 4 employees on MSHA's record (mine ID 0405994). Since January 1, 2022 MSHA inspectors issued 10 citations and orders there with $0 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Martin Marietta Hughson Plant (MSHA mine ID 0405994) in Stanislaus County, California: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0405994
- Status
- Intermittent since September 3, 2026
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Stanislaus County, California
- Nearest town
- Hughson
- Operator
- Recycled Base Materials Inc
- Employees
- 4
- MSHA field office
- Vacaville CA Field Office
- Citations and orders since January 1, 2022
- 10
- Significant and substantial
- 3 (30.0%)
- Closure orders
- 1
- High negligence or reckless
- 0
- Proposed penalties
- $0
- Amount paid so far
- $0
- Inspections
- 3
- Inspector hours on site
- 6
- Citations per inspection
- 3.33 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- October 7, 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 |
|---|---|---|---|---|
| 2026 | 10 | 3 | $0 | 0 |
Standards cited most at Martin Marietta Hughson Plant
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 41.20 | Notice of legal identity | 1 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.5 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
Other open mines in Stanislaus County, California
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 7/11 Materials Inc | 7/11 Materials Inc | Stanislaus County, CA | Construction sand and gravel | 7 | 48 |
| Delaney Aggregates | Jim Brisco Enterprises, Inc | Stanislaus County, CA | Construction sand and gravel | 2 | 17 |
| Ohe Sand & Gravel Inc | Ohe Sand & Gravel Inc | Stanislaus County, CA | Construction sand and gravel | 3 | 13 |
| Hughson Aggregates | Martin Marietta Northern California Aggregates,LLC | Stanislaus County, CA | Construction sand and gravel | 3 | 4 |
| LA Grange Pit & Mill | Santa Fe Aggregates | Stanislaus County, CA | Construction sand and gravel | 2 | 2 |
| Dawson Quarry | Zanker and Zanker | Stanislaus County, CA | Construction sand and gravel | 3 | 0 |
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.