Data / Mines / California / Sanger Aggregate Plant
Sanger Aggregate Plant: 30 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Sanger Aggregate Plant is an active sand, industrial surface mine in Fresno County, California, operated by Martin Marietta Northern California Aggregates,LLC with 10 employees on MSHA's record (mine ID 0405799). Since January 1, 2022 MSHA inspectors issued 30 citations and orders there with $7,544 in proposed penalties, and 5 accident reports were filed there, with 5 injury or illness cases.
The request: Watch Sanger Aggregate Plant (MSHA mine ID 0405799) in Fresno County, California: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0405799
- Status
- Active since September 30, 2019
- Main commodity
- Sand, industrial
- Mine type
- Surface
- County
- Fresno County, California
- Nearest town
- Sanger
- Operator
- Martin Marietta Northern California Aggregates,LLC
- Parent company
- Martin Marietta Materials Inc
- Employees
- 10
- MSHA field office
- Vacaville CA Field Office
- Citations and orders since January 1, 2022
- 30
- Significant and substantial
- 3 (10.0%)
- Closure orders
- 2
- High negligence or reckless
- 0
- Proposed penalties
- $7,544
- Amount paid so far
- $7,544
- Inspections
- 16
- Inspector hours on site
- 138
- Citations per inspection
- 1.88 (all mines 2.30)
- Accident reports
- 5
- Injury and illness cases
- 5
- Fatalities
- 0
- Latest MSHA record
- November 2, 2026
- Citations issued to contractors here
- 6 ($918 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 | 8 | 0 | $2,028 | 1 |
| 2023 | 6 | 2 | $1,134 | 1 |
| 2024 | 8 | 0 | $1,404 | 1 |
| 2025 | 6 | 0 | $1,918 | 0 |
| 2026 | 2 | 1 | $1,060 | 2 |
Standards cited most at Sanger Aggregate 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 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 47.41 | Hazard communication | 1 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12025 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12068 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9301 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
| 30 CFR 41.12 | Notice of legal identity | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Sanger Aggregate Plant
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 3 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Sanger Aggregate Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Slip or fall of person | 1 |
| Stepping or kneeling on object | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at Sanger Aggregate Plant
| Equipment | Reports |
|---|---|
| Forklift | 1 |
Other open mines in Fresno County, California
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Seirra Pacific Materials | Granite Construction Company | Fresno County, CA | Construction sand and gravel | 22 | 218 |
| Rockfield Plant | Cemex Construction Materials Pacific, LLC | Fresno County, CA | Construction sand and gravel | 12 | 23 |
| Coalinga Pit | Granite Construction Company | Fresno County, CA | Construction sand and gravel | 23 | 21 |
| Sanger Plant | CalMat Co | Fresno County, CA | Construction sand and gravel | 18 | 21 |
| Academy Black | Cold Spring Granite Company | Fresno County, CA | Dimension stone | 5 | 15 |
| SP1 | El Dorado Materials LLC | Fresno County, CA | Sand, common | 2 | 11 |
| Portable #1 | Kroeker Inc | Fresno County, CA | Construction sand and gravel | 4 | 2 |
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.