Key Takeaway
Alpha Materials, Inc. is a active surface mine producing SandAndGravel, located in Riverside, San Bernardino County, CA. It has 171 violations on record (58 S&S) and $115K in proposed penalties. Operated by Alpha Materials, Inc..
Alpha Materials, Inc.
Operator: Alpha Materials, Inc.
Controller: Brian M Oaks
Location: Riverside, San Bernardino County, CA
Employees: 2
Recent Violations
View all 171 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 11/12/2025 | 46.8(a)(2) | Non-S&S | HighNegligence | $168 |
| 01/15/2025 | 56.14107(a) | S&S | ModNegligence | $177 |
| 05/02/2024 | 56.14101(a)(3) | S&S | ModNegligence | $147 |
| 01/10/2024 | 46.9(a) | Non-S&S | LowNegligence | $147 |
| 04/16/2022 | 50.30(a) | Non-S&S | HighNegligence | $143 |
| 03/23/2020 | 56.14107(a) | Non-S&S | LowNegligence | $123 |
| 05/09/2018 | 56.14100(b) | Non-S&S | ModNegligence | $118 |
| 05/09/2018 | 56.14112(b) | Non-S&S | ModNegligence | $118 |
| 05/09/2018 | 56.12013(b) | Non-S&S | ModNegligence | $118 |
| 02/15/2018 | 56.20003(a) | S&S | HighNegligence | $2,295 |
| 02/15/2018 | 56.14207 | Non-S&S | HighNegligence | $7,624 |
| 02/15/2018 | 46.11(a) | S&S | ModNegligence | $8,472 |
| 02/13/2018 | 56.14112(b) | S&S | HighNegligence | $2,295 |
| 02/13/2018 | 56.14101(a)(2) | S&S | HighNegligence | $7,624 |
| 02/13/2018 | 56.14100(b) | Non-S&S | HighNegligence | $462 |
| 02/13/2018 | 56.20003(a) | S&S | ModNegligence | $691 |
| 02/13/2018 | 56.14101(a)(3) | S&S | ModNegligence | $2,295 |
| 02/13/2018 | 56.14100(b) | Non-S&S | HighNegligence | $462 |
| 02/13/2018 | 56.14207 | S&S | ModNegligence | $2,295 |
| 09/19/2017 | 56.11001 | Non-S&S | HighNegligence | $204 |
Inspections
View all 59 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 11/10/2025 | 11/12/2025 | 22.00 | 1 |
| 04/30/2025 | 04/30/2025 | 10.50 | 1 |
| 01/15/2025 | 01/16/2025 | 25.00 | 1 |
| 05/13/2024 | 05/13/2024 | 7.00 | 1 |
| 05/02/2024 | 05/16/2024 | 12.25 | 1 |
| 01/10/2024 | 01/10/2024 | 8.25 | 1 |
| 05/11/2023 | 05/11/2023 | 8.00 | 1 |
| 11/29/2022 | 11/30/2022 | 10.00 | 1 |
| 08/19/2022 | 08/19/2022 | 9.00 | 1 |
| 12/03/2020 | 12/03/2020 | 17.00 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Alpha Materials, Inc. have?
Alpha Materials, Inc. has 171 MSHA violations on record, of which 58 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $115K.
What type of mine is Alpha Materials, Inc.?
Alpha Materials, Inc. is a Surface mine producing SandAndGravel, located in Riverside, San Bernardino County, CA. It currently has 2 employees.
Has anyone been injured or killed at Alpha Materials, Inc.?
According to MSHA records, Alpha Materials, Inc. has 0 reported accident/injury records and 0 fatalities on file.
Who operates Alpha Materials, Inc.?
Alpha Materials, Inc. is operated by Alpha Materials, Inc. and controlled by Brian M Oaks. MSHA Mine ID: 0405322.