Imerys Lompoc Plant
Active
Surface
Nonmetal
Operator: Imerys Filtration Minerals, Inc.
Controller: Imerys S A
Location: Lompoc, Santa Barbara County, CA
Employees: 198
1,628
Violations
441
S&S Violations
283
Accidents
$1.6M
Penalties
Recent Violations
View all 1,628 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 03/04/2026 | 56.14112(b) | Non-S&S | HighNegligence | $0 |
| 03/04/2026 | 56.12028 | S&S | ModNegligence | $0 |
| 02/26/2026 | 56.14112(b) | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.12020 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.18002(a) | S&S | ModNegligence | $0 |
| 02/25/2026 | 56.14100(b) | S&S | ModNegligence | $0 |
| 02/25/2026 | 56.12002 | Non-S&S | ModNegligence | $0 |
| 02/25/2026 | 56.12002 | Non-S&S | ModNegligence | $0 |
| 02/25/2026 | 56.12004 | Non-S&S | LowNegligence | $0 |
| 02/25/2026 | 56.12008 | Non-S&S | LowNegligence | $0 |
| 02/25/2026 | 56.14107(a) | S&S | ModNegligence | $0 |
| 02/25/2026 | 56.18002(a) | S&S | HighNegligence | $0 |
| 02/25/2026 | 56.16004 | S&S | ModNegligence | $0 |
| 02/25/2026 | 56.12032 | Non-S&S | ModNegligence | $0 |
| 02/25/2026 | 56.14207 | Non-S&S | LowNegligence | $0 |
| 02/25/2026 | 56.16001 | S&S | HighNegligence | $0 |
| 02/25/2026 | 56.16001 | S&S | ModNegligence | $0 |
| 02/25/2026 | 56.16001 | Non-S&S | LowNegligence | $0 |
| 02/25/2026 | 56.4500 | Non-S&S | LowNegligence | $0 |
| 02/24/2026 | 56.14207 | Non-S&S | ModNegligence | $0 |
Accidents & Injuries
View all 283 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/14/2026 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 08/07/2024 | OTHER | DAYS RESTRICTED ACTIVITY ONLY | 20d restricted |
| 04/21/2024 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 24d lost |
| 02/20/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 144d lost |
| 01/16/2023 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 362d lost |
| 09/11/2022 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 80d restricted |
| 06/26/2022 | ELECTRICAL | DAYS AWAY FROM WORK ONLY | 7d lost |
| 04/15/2022 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 145d restricted |
| 03/22/2022 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 43d lost |
| 12/21/2021 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 125d lost |
Inspections
View all 153 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/23/2026 | 106.75 | 3 | |
| 08/12/2025 | 08/21/2025 | 97.25 | 2 |
| 02/10/2025 | 02/20/2025 | 95.00 | 1 |
| 06/10/2024 | 06/25/2024 | 151.75 | 2 |
| 02/14/2024 | 02/14/2024 | 7.00 | 1 |
| 01/14/2024 | 01/19/2024 | 115.25 | 2 |
| 05/31/2023 | 06/09/2023 | 95.00 | 1 |
| 01/23/2023 | 01/28/2023 | 116.75 | 3 |
| 09/12/2022 | 09/14/2022 | 33.50 | 1 |
| 07/05/2022 | 07/06/2022 | 16.75 | 1 |
Mine Details
MSHA Mine ID0402848
Mine TypeSurface
StatusActive
CommodityNonmetal
SIC DescriptionDiatomaceous Earth (Diatomite)
Employees198
Days/Week7.0
Hours/Shift8.0
Coordinates34.6088890, -120.4641670
Nearest TownLompoc
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Frequently Asked Questions
How many MSHA violations does Imerys Lompoc Plant have?
Imerys Lompoc Plant has 1628 MSHA violations on record, of which 441 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1.6M.
What type of mine is Imerys Lompoc Plant?
Imerys Lompoc Plant is a Surface mine producing Nonmetal, located in Lompoc, Santa Barbara County, CA. It currently has 198 employees.
Has anyone been injured or killed at Imerys Lompoc Plant?
According to MSHA records, Imerys Lompoc Plant has 283 reported accident/injury records and 0 fatalities on file.
Who operates Imerys Lompoc Plant?
Imerys Lompoc Plant is operated by Imerys Filtration Minerals, Inc. and controlled by Imerys S A. MSHA Mine ID: 0402848.