PORTOLA MINERALS COMPANY
24599 MARBLE QUARRY ROAD, COLUMBIA, CA 95310 · NAICS 212319 Other Crushed and Broken Stone Mining and Quarrying
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Jun 24, 2025#348332164Jun 24, 2025Planned (H) · Complete scope, Safety#348332164$1,6302 viol.2 violations$1,630 in penalties
Inspection #348332164
Dates
- Opened
- Jun 24, 2025
- Closing Conference Date
- Aug 27, 2025
- Final Order
- Sep 8, 2025
- Closed
- Sep 29, 2025
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 70
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 repeat, 1 other-than-serious
- Initial Penalties
- $2,305
- Penalties on Record
- $1,630
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 4002(A) Moving Parts of Machinery or Equipment | Other | 1 | 6 | $280 | $280 | - | Sep 8, 2025 | |
| 02001 | 7055(K) Fire Prevention and Control | Repeat | 3 | 20 | $2,025 | $1,350 | - | Sep 8, 2025 |
May 3, 2024#347460081May 3, 2024Planned (H) · Complete scope, Safety#347460081$1,2503 viol.3 violations$1,250 in penalties
Inspection #347460081
Dates
- Opened
- May 3, 2024
- Closing Conference Date
- Jun 26, 2024
- Final Order
- Aug 2, 2024
- Closed
- Aug 19, 2024
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 70
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 1 repeat, 2 other-than-serious
- Initial Penalties
- $1,250
- Penalties on Record
- $1,250
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 7046(B) Travelways | Other | 2 | 10 | $175 | $175 | - | Aug 2, 2024 | |
| 01002 | 7055(K) Fire Prevention and Control | Other | 1 | 70 | $175 | $175 | - | Aug 2, 2024 | |
| 02001 | 7016(I) Haulage Vehicle, Construction and Maintenance | Repeat | 1 | 70 | $900 | $900 | - | Aug 2, 2024 |
Feb 6, 2023#346490659Feb 6, 2023Complaint (B) · Partial scope, Safety#346490659$8752 viol.2 violations$875 in penalties
Inspection #346490659
Dates
- Opened
- Feb 6, 2023
- Closing Conference Date
- Mar 6, 2023
- Final Order
- Apr 4, 2023
- Closed
- May 23, 2023
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 64
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $875
- Penalties on Record
- $875
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 7014(G) Private Roads | Other | 1 | 6 | $700 | $700 | Mar 20, 2023 | - | Apr 4, 2023 |
| 01002 | 7016(I) Haulage Vehicle, Construction and Maintenance | Other | 1 | 64 | $175 | $175 | Mar 20, 2023 | - | Apr 4, 2023 |
Dec 2, 2022#346372097Dec 2, 2022Planned (H) · Complete scope, Safety#346372097$3501 viol.1 violation$350 in penalties
Inspection #346372097
Dates
- Opened
- Dec 2, 2022
- Closing Conference Date
- Mar 6, 2023
- Final Order
- Apr 3, 2023
- Closed
- Mar 27, 2023
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 64
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $350
- Penalties on Record
- $350
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 5043 Inspections | Other | 1 | 25 | $350 | $350 | - | Apr 3, 2023 |
Oct 27, 2021#345604953Oct 27, 2021Planned (H) · Complete scope, Safety#345604953$6153 viol.3 violations$615 in penalties
Inspection #345604953
Dates
- Opened
- Oct 27, 2021
- Closing Conference Date
- Dec 9, 2021
- Final Order
- Jan 6, 2022
- Closed
- Jan 10, 2022
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 53
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 3 other-than-serious
- Initial Penalties
- $615
- Penalties on Record
- $615
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 450(A)(1) Application of the Unfired Pressure Vessel Safety Orders | Other | 1 | 53 | $205 | $205 | Dec 30, 2021 | - | Jan 6, 2022 |
| 01002 | 3212(A)(2)(A) Floor Openings, Floor Holes, Skylights and Roofs | Other | 1 | 53 | $205 | $205 | Dec 30, 2021 | - | Jan 6, 2022 |
| 01003 | 5572(B) Emergency Disconnect Switches | Other | 1 | 53 | $205 | $205 | Dec 30, 2021 | - | Jan 6, 2022 |
May 7, 2018#343145900May 7, 2018Planned (H) · Complete scope, Safety#343145900$3,52510 viol.10 violations$3,525 in penalties
Inspection #343145900
Dates
- Opened
- May 7, 2018
- Closing Conference Date
- May 18, 2018
- Final Order
- Jun 22, 2018
- Closed
- Jun 25, 2018
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 49
Violations and Penalties
- Total Violations
- 10
- Violation Types
- 10 other-than-serious
- Initial Penalties
- $3,525
- Penalties on Record
- $3,525
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212319 Other Crushed and Broken Stone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (5 of 10 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 2340.16 Work Space About Electric Equipment OSHA citation code: 23400016 A | Other | 2 | 8 | $300 | $300 | Jun 7, 2018 | - | Jun 22, 2018 |
| 01002 | 3214(C) Stair Rails and Handrails | Other | 2 | 8 | $225 | $225 | Jun 13, 2018 | - | Jun 22, 2018 |
| 01003 | 3220(B) Emergency Action Plan | Other | 1 | 49 | $300 | $300 | Jun 13, 2018 | - | Jun 22, 2018 |
| 01004 | 3221(B) Fire Prevention Plan | Other | 1 | 49 | $300 | $300 | Jun 13, 2018 | - | Jun 22, 2018 |
| 01005 | 3314(G)(1)(B) The Control of Hazardous Energy for the Cleaning, Repairing, Servicing, Setting-Up, and Adjusting Operations of Prime Movers, Machinery and Equipment, Including Lockout/Tagout | Other | 50 | 49 | $600 | $600 | Jun 13, 2018 | - | Jun 22, 2018 |
Showing the 5 violations listed first by citation identifier. This inspection has 10 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Nov 18, 2014#340096437Nov 18, 2014Planned (H) · Complete scope, Safety#340096437$00 viol.0 violations$0 in penalties
Inspection #340096437
Dates
- Opened
- Nov 18, 2014
- Closing Conference Date
- Nov 18, 2014
- Closed
- Dec 10, 2014
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 50
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 24599 Marble Quarry Rd, Columbia, CA 95310
- Industry
- 212312 Crushed and Broken Limestone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Mar 9, 2010#311729446Mar 9, 2010Planned (H) · Complete scope, Safety#311729446$3502 viol.2 violations$350 in penalties
Inspection #311729446
Dates
- Opened
- Mar 9, 2010
- Closing Conference Date
- Mar 11, 2010
- Closed
- May 5, 2010
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 32
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $350
- Penalties on Record
- $350
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212312 Crushed and Broken Limestone Mining and Quarrying
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1675 General OSHA citation code: 1675 I | Other | 1 | 1 | $150 | $150 | Mar 31, 2010 | - | - |
| 01002 | 7046 Travelways OSHA citation code: 7046 F | Other | 2 | 3 | $200 | $200 | Apr 28, 2010 | - | - |
Apr 21, 2009#311726517Apr 21, 2009Planned (H) · Complete scope, Safety#311726517$1,2302 viol.2 violations$1,230 in penalties
Inspection #311726517
Dates
- Opened
- Apr 21, 2009
- Closing Conference Date
- Apr 22, 2009
- Closed
- Jul 1, 2009
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 50
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $1,230
- Penalties on Record
- $1,230
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212321 Construction Sand and Gravel Mining
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 5162 Emergency Eyewash and Shower Equipment OSHA citation code: 5162 E | Other | 2 | 2 | $680 | $680 | May 20, 2009 | - | - |
| 01002 | 7030 Conveyors OSHA citation code: 7030 B | Other | 2 | 2 | $550 | $550 | May 29, 2009 | - | - |
Apr 8, 2008#311721708Apr 8, 2008Planned (H) · Complete scope, Safety#311721708$5352 viol.2 violations$535 in penalties
Inspection #311721708
Dates
- Opened
- Apr 8, 2008
- Closing Conference Date
- Apr 9, 2008
- Closed
- Jun 20, 2008
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 50
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $535
- Penalties on Record
- $535
- Site Address
- 24599 Marble Quarry Road, Columbia, CA 95310
- Industry
- 212321 Construction Sand and Gravel Mining
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 5262 General OSHA citation code: 5262 F02 | Other | 1 | 1 | $300 | $300 | Apr 9, 2008 | - | - |
| 01002 | 7046 Travelways OSHA citation code: 7046 F | Other | 2 | 2 | $235 | $235 | May 15, 2008 | - | - |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
11 inspections, 2007 to 2025. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.
Standards cited
Industry comparison
Mining (except Oil and Gas), 2,259 employers with OSHA inspections. Arithmetic from DOL records.