Key Takeaway
Santee Aggregates is a active surface mine producing Stone, located in Santee, San Diego County, CA. It has 142 violations on record (33 S&S) and $36K in proposed penalties. Operated by Martin Marietta San Diego Aggregates, LLC.
Santee Aggregates
Operator: Martin Marietta San Diego Aggregates, LLC
Controller: Martin Marietta Materials Inc
Location: Santee, San Diego County, CA
Employees: 10
Recent Violations
View all 142 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/12/2026 | 56.12008 | Non-S&S | LowNegligence | $0 |
| 05/14/2025 | 56.20003(c) | Non-S&S | LowNegligence | $151 |
| 05/14/2025 | 56.16001 | Non-S&S | LowNegligence | $151 |
| 04/16/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 02/11/2025 | 56.14132(b) | Non-S&S | LowNegligence | $151 |
| 02/11/2025 | 56.14112(a)(1) | Non-S&S | LowNegligence | $151 |
| 02/11/2025 | 56.20003(a) | S&S | LowNegligence | $151 |
| 04/17/2024 | 56.12028 | Non-S&S | HighNegligence | $147 |
| 04/16/2024 | 56.4200(b)(2) | Non-S&S | ModNegligence | $147 |
| 02/22/2024 | 56.12032 | S&S | LowNegligence | $221 |
| 02/21/2024 | 56.14107(a) | Non-S&S | LowNegligence | $147 |
| 02/21/2024 | 56.20003(a) | Non-S&S | ModNegligence | $147 |
| 07/12/2023 | 56.4201(a)(2) | Non-S&S | ModNegligence | $143 |
| 07/11/2023 | 56.14107(a) | Non-S&S | LowNegligence | $143 |
| 04/16/2023 | 50.30(a) | Non-S&S | HighNegligence | $143 |
| 02/28/2023 | 56.12030 | S&S | LowNegligence | $518 |
| 08/10/2022 | 56.14112(b) | Non-S&S | LowNegligence | $133 |
| 04/20/2021 | 56.4200(b)(2) | Non-S&S | LowNegligence | $125 |
| 04/20/2021 | 56.16006 | Non-S&S | ModNegligence | $125 |
| 04/20/2021 | 56.4603(c) | Non-S&S | LowNegligence | $125 |
Accidents & Injuries
View all 17 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/14/2020 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 65d lost |
| 12/15/2016 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 134d lost |
| 06/29/2016 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/25/2014 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 4d restricted |
| 06/05/2012 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 36d restricted |
| 12/28/2009 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 60d restricted |
| 06/19/2009 | MACHINERY | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 67d restricted |
| 03/26/2009 | MACHINERY | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 1d restricted |
| 10/14/2008 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/07/2008 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 7d restricted |
Inspections
View all 56 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/11/2026 | 02/13/2026 | 21.25 | 1 |
| 05/14/2025 | 05/15/2025 | 20.50 | 1 |
| 02/11/2025 | 02/11/2025 | 18.50 | 1 |
| 04/15/2024 | 04/17/2024 | 25.75 | 1 |
| 02/20/2024 | 02/22/2024 | 32.25 | 1 |
| 07/10/2023 | 07/12/2023 | 23.50 | 1 |
| 02/27/2023 | 03/01/2023 | 24.25 | 1 |
| 08/10/2022 | 08/12/2022 | 18.75 | 1 |
| 03/01/2022 | 03/01/2022 | 12.00 | 1 |
| 04/19/2021 | 04/20/2021 | 31.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Santee Aggregates have?
Santee Aggregates has 142 MSHA violations on record, of which 33 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $36K.
What type of mine is Santee Aggregates?
Santee Aggregates is a Surface mine producing Stone, located in Santee, San Diego County, CA. It currently has 10 employees.
Has anyone been injured or killed at Santee Aggregates?
According to MSHA records, Santee Aggregates has 17 reported accident/injury records and 0 fatalities on file.
Who operates Santee Aggregates?
Santee Aggregates is operated by Martin Marietta San Diego Aggregates, LLC and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 0405564.