Data / Mines / California / Sisquoc Aggregates
Sisquoc Aggregates: 15 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Sisquoc Aggregates is an active construction sand and gravel surface mine in Santa Barbara County, California, operated by Martin Marietta Northern California Aggregates,LLC with 12 employees on MSHA's record (mine ID 0401959). Since January 1, 2022 MSHA inspectors issued 15 citations and orders there with $3,222 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Sisquoc Aggregates (MSHA mine ID 0401959) in Santa Barbara County, California: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0401959
- Status
- Active since September 25, 1972
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Santa Barbara County, California
- Nearest town
- Santa Maria
- Operator
- Martin Marietta Northern California Aggregates,LLC
- Parent company
- Martin Marietta Materials Inc
- Employees
- 12
- MSHA field office
- San Bernardino CA Field Office
- Citations and orders since January 1, 2022
- 15
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 2
- Proposed penalties
- $3,222
- Amount paid so far
- $3,222
- Inspections
- 24
- Inspector hours on site
- 108
- Citations per inspection
- 0.62 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- September 17, 2026
- Citations issued to contractors here
- 4 ($906 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 | $1,164 | 0 |
| 2023 | 3 | 0 | $1,462 | 0 |
| 2024 | 2 | 0 | $294 | 0 |
| 2025 | 2 | 0 | $302 | 0 |
Standards cited most at Sisquoc Aggregates
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 | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4203 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14115 | Surface metal and nonmetal mines | 1 |
Other open mines in Santa Barbara County, California
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Imerys Lompoc Plant | Imerys Filtration Minerals, Inc. | Santa Barbara County, CA | Diatomaceous earth (diatomite) | 198 | 249 |
| Garey Rock Plant | CalPortland Company | Santa Barbara County, CA | Construction sand and gravel | 10 | 23 |
| Bee Rock Quarry | Granite Construction Company | Santa Barbara County, CA | Crushed, broken limestone | 7 | 15 |
| Troesh Recycling, Inc. DBA RoXsand | RoXsand | Santa Barbara County, CA | Construction sand and gravel | 3 | 14 |
| Solvang Plant | Buellflat Rock Co Inc | Santa Barbara County, CA | Construction sand and gravel | 6 | 12 |
| Gordon Sand Co | Gordon Sand Co | Santa Barbara County, CA | Construction sand and gravel | 1 | 11 |
| Ellwood Pit | Santa Barbara Sand & Top Soil | Santa Barbara County, CA | Sand, industrial | 5 | 3 |
| Parks Quarry | Granite Construction Company | Santa Barbara County, CA | Construction sand and gravel | 2 | 1 |
| Acin Ranch | Sepulveda Building Materials Lompoc Inc | Santa Barbara County, CA | Dimension stone | 2 | 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.