Data / Mines / California / Estrella Sand Pit
Estrella Sand Pit: 3 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Estrella Sand Pit is an intermittent sand, industrial surface mine in San Luis Obispo County, California, operated by Viborg Sand & Gravel Inc with 1 employee on MSHA's record (mine ID 0405891). Since January 1, 2022 MSHA inspectors issued 3 citations and orders there with $423 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Estrella Sand Pit (MSHA mine ID 0405891) in San Luis Obispo County, California: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0405891
- Status
- Intermittent since June 4, 2019
- Main commodity
- Sand, industrial
- Mine type
- Surface
- County
- San Luis Obispo County, California
- Nearest town
- Paso Robles
- Operator
- Viborg Sand & Gravel Inc
- Employees
- 1
- MSHA field office
- San Bernardino CA Field Office
- Citations and orders since January 1, 2022
- 3
- Significant and substantial
- 1 (33.3%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $423
- Amount paid so far
- $423
- Inspections
- 6
- Inspector hours on site
- 16
- Citations per inspection
- 0.50 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- February 11, 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 |
|---|---|---|---|---|
| 2022 | 1 | 0 | $133 | 0 |
| 2023 | 1 | 1 | $143 | 0 |
| 2024 | 1 | 0 | $147 | 0 |
Standards cited most at Estrella Sand Pit
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 50.30 | Reporting of accidents, injuries and illnesses | 2 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
Other open mines in San Luis Obispo County, California
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Blue Mountain Minerals PR LLC | Blue Mountain Minerals PR LLC | San Luis Obispo County, CA | Crushed, broken limestone | 12 | 29 |
| Rocky Canyon Plant | CalPortland Company | San Luis Obispo County, CA | Crushed, broken granite | 14 | 19 |
| Bianchi Pit | David Crye General Engineering Contractor, Inc. | San Luis Obispo County, CA | Construction sand and gravel | 5 | 19 |
| Santa Margarita Aggregates | Martin Marietta Northern California Aggregates,LLC | San Luis Obispo County, CA | Construction sand and gravel | 13 | 17 |
| Navajo Rock & Block | David Crye General Engineering Contractor, Inc. | San Luis Obispo County, CA | Construction sand and gravel | 2 | 13 |
| Whale Rock Quarry | Negranti & Sons | San Luis Obispo County, CA | Crushed, broken stone | 5 | 11 |
| Warrior 1800/Cone Crusher FT200 | David Crye General Engineering Contractor, Inc. | San Luis Obispo County, CA | Sand, industrial | 3 | 6 |
| MTN Springs RD. Pit | Viborg Sand & Gravel Inc | San Luis Obispo County, CA | Construction sand and gravel | 1 | 4 |
| Paso Robles Plant | CalPortland Company | San Luis Obispo 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.