Key Takeaway
San Rafael Rock Quarry is a active surface mine producing Stone, located in San Rafael, Marin County, CA. It has 274 violations on record (54 S&S) and $108K in proposed penalties. Operated by Dutra Materials.
San Rafael Rock Quarry
Operator: Dutra Materials
Controller: CRH PLC
Location: San Rafael, Marin County, CA
Employees: 25
Recent Violations
View all 274 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/22/2025 | 56.4201(a)(2) | Non-S&S | ModNegligence | $151 |
| 05/22/2025 | 56.15005 | S&S | LowNegligence | $697 |
| 12/18/2024 | 56.14100(b) | Non-S&S | LowNegligence | $151 |
| 12/17/2024 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 12/17/2024 | 56.14112(b) | Non-S&S | ModNegligence | $245 |
| 12/17/2024 | 56.14112(b) | Non-S&S | ModNegligence | $151 |
| 12/17/2024 | 56.14112(b) | Non-S&S | ModNegligence | $151 |
| 10/18/2024 | 56.4200(a)(1) | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 56.14207 | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 56.14100(b) | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 56.14100(b) | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 56.12032 | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 56.12018 | Non-S&S | ModNegligence | $147 |
| 09/04/2024 | 50.30(a) | Non-S&S | ModNegligence | $147 |
| 09/13/2023 | 56.12032 | Non-S&S | LowNegligence | $143 |
| 09/13/2023 | 56.12018 | Non-S&S | LowNegligence | $143 |
| 09/13/2023 | 56.11002 | Non-S&S | ModNegligence | $143 |
| 08/22/2023 | 56.14132(a) | Non-S&S | ModNegligence | $143 |
| 08/22/2023 | 56.3131 | Non-S&S | ModNegligence | $143 |
| 08/22/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
Accidents & Injuries
View all 30 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/12/2025 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | None |
| 05/22/2025 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 4d lost |
| 02/09/2016 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 20d lost |
| 06/11/2015 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/19/2014 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 1d lost |
| 04/04/2014 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 168d lost |
| 01/08/2014 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/31/2011 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 7d lost |
| 09/22/2009 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/11/2008 | NONPOWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 78 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/22/2025 | 10/22/2025 | 12.75 | 1 |
| 09/17/2025 | 09/18/2025 | 10.50 | 1 |
| 05/30/2025 | 05/30/2025 | 8.00 | 1 |
| 12/17/2024 | 12/18/2024 | 13.25 | 1 |
| 10/17/2024 | 10/20/2024 | 16.75 | 1 |
| 09/03/2024 | 09/05/2024 | 14.25 | 1 |
| 03/05/2024 | 03/09/2024 | 19.75 | 1 |
| 09/13/2023 | 09/14/2023 | 15.00 | 1 |
| 08/22/2023 | 08/22/2023 | 11.50 | 1 |
| 08/30/2022 | 08/31/2022 | 21.75 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does San Rafael Rock Quarry have?
San Rafael Rock Quarry has 274 MSHA violations on record, of which 54 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $108K.
What type of mine is San Rafael Rock Quarry?
San Rafael Rock Quarry is a Surface mine producing Stone, located in San Rafael, Marin County, CA. It currently has 25 employees.
Has anyone been injured or killed at San Rafael Rock Quarry?
According to MSHA records, San Rafael Rock Quarry has 30 reported accident/injury records and 0 fatalities on file.
Who operates San Rafael Rock Quarry?
San Rafael Rock Quarry is operated by Dutra Materials and controlled by CRH PLC. MSHA Mine ID: 0400021.