Key Takeaway
San Pedro Quarry is a active surface mine producing Stone, located in San Antonio, Bexar County, TX. It has 34 violations on record (5 S&S) and $6K in proposed penalties. Operated by Martin Marietta Materials Southwest LLC.
San Pedro Quarry
Operator: Martin Marietta Materials Southwest LLC
Controller: Martin Marietta Materials Inc
Location: San Antonio, Bexar County, TX
Employees: 10
Recent Violations
View all 34 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 05/06/2025 | 56.12018 | Non-S&S | ModNegligence | $151 |
| 05/08/2024 | 46.3(b)(4) | Non-S&S | HighNegligence | $147 |
| 10/25/2023 | 56.15004 | Non-S&S | LowNegligence | $147 |
| 08/31/2022 | 56.20003(a) | S&S | ModNegligence | $273 |
| 04/06/2022 | 56.14132(b)(1)(i) | Non-S&S | LowNegligence | $133 |
| 06/22/2021 | 56.12004 | Non-S&S | LowNegligence | $125 |
| 02/02/2021 | 56.13021 | Non-S&S | ModNegligence | $125 |
| 10/15/2019 | 56.14107(a) | S&S | ModNegligence | $372 |
| 09/26/2019 | 62.171(c) | Non-S&S | HighNegligence | $121 |
| 09/26/2019 | 62.110(d) | Non-S&S | HighNegligence | $121 |
| 09/23/2019 | 56.14206(b) | Non-S&S | ModNegligence | $121 |
| 03/12/2019 | 56.12004 | Non-S&S | ModNegligence | $168 |
| 08/23/2018 | 56.12004 | Non-S&S | ModNegligence | $118 |
| 08/23/2018 | 56.14107(a) | Non-S&S | ModNegligence | $118 |
| 08/23/2018 | 56.12032 | Non-S&S | ModNegligence | $118 |
| 04/21/2016 | 56.4102 | Non-S&S | ModNegligence | $100 |
| 10/01/2015 | 56.11001 | Non-S&S | ModNegligence | $127 |
| 10/01/2015 | 47.41(a) | Non-S&S | ModNegligence | $100 |
| 10/23/2014 | 56.14100(d) | Non-S&S | ModNegligence | $100 |
| 04/01/2014 | 56.11001 | S&S | ModNegligence | $634 |
Accidents & Injuries
View all 3 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 11/16/2021 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 68d restricted |
| 12/11/2007 | DUST DISEASE OF LUNGS | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 04/18/2002 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 1d restricted |
Inspections
View all 58 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/02/2025 | 10/03/2025 | 8.50 | 1 |
| 05/06/2025 | 05/07/2025 | 18.00 | 1 |
| 10/17/2024 | 10/17/2024 | 2.75 | 1 |
| 05/08/2024 | 05/09/2024 | 11.50 | 1 |
| 10/24/2023 | 10/26/2023 | 17.00 | 1 |
| 04/12/2023 | 04/12/2023 | 8.00 | 1 |
| 11/22/2022 | 11/22/2022 | 8.50 | 1 |
| 08/31/2022 | 08/31/2022 | 16.50 | 1 |
| 04/06/2022 | 04/06/2022 | 8.00 | 1 |
| 06/22/2021 | 06/22/2021 | 6.25 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does San Pedro Quarry have?
San Pedro Quarry has 34 MSHA violations on record, of which 5 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $6K.
What type of mine is San Pedro Quarry?
San Pedro Quarry is a Surface mine producing Stone, located in San Antonio, Bexar County, TX. It currently has 10 employees.
Has anyone been injured or killed at San Pedro Quarry?
According to MSHA records, San Pedro Quarry has 3 reported accident/injury records and 0 fatalities on file.
Who operates San Pedro Quarry?
San Pedro Quarry is operated by Martin Marietta Materials Southwest LLC and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 4101337.