NATIONAL TRENCH SAFETY
10763 POPLAR AVENUE, Fontana, CA 92337 · NAICS 238910 Site Preparation Contractors
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Dec 11, 2023#347157851Dec 11, 2023Final Order RecordedAccident (A) · Partial scope, SafetyFinal Order Recorded#347157851$3751 viol.1 violation$375 in penalties
Inspection #347157851
Dates
- Opened
- Dec 11, 2023
- Closing Conference Date
- Apr 5, 2024
- Contested
- Apr 29, 2024
- Final Order
- Jun 23, 2025
- Closed
- No close date in inspection feed
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 25
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $485
- Penalties on Record
- $375
- Site Address
- 10763 Poplar Avenue, Fontana, CA 92337
- Industry
- 238910 Site Preparation Contractors
Accident Inspection: This inspection record is categorized as an accident inspection in the U.S. Department of Labor OSHA enforcement data. Employers must report work-related fatalities within 8 hours, and work-related inpatient hospitalizations, amputations, or losses of an eye within 24 hours. An accident-related inspection does not by itself determine fault.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 3328(A) Machinery and Equipment | Other | 1 | 3 | $485 | $375 | May 10, 2024 | Apr 29, 2024 | Jun 23, 2025 |
Dec 11, 2023#347157836Dec 11, 2023Accident (A) · Partial scope, Safety#347157836$00 viol.0 violations$0 in penalties
Inspection #347157836
Dates
- Opened
- Dec 11, 2023
- Closing Conference Date
- Dec 11, 2023
- Closed
- Apr 5, 2024
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 25
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 10763 Poplar Avenue, Fontana, CA 92337
- Industry
- 238910 Site Preparation Contractors
Accident Inspection: This inspection record is categorized as an accident inspection in the U.S. Department of Labor OSHA enforcement data. Employers must report work-related fatalities within 8 hours, and work-related inpatient hospitalizations, amputations, or losses of an eye within 24 hours. An accident-related inspection does not by itself determine fault.
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.
2 inspections, 2023 to 2023. 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.
Standards cited
Industry comparison
Specialty Trade Contractors, 552,053 employers with OSHA inspections. Arithmetic from DOL records.
BLS 2024 survey: site preparation contractors reported 1.5 injuries and illnesses per 100 full-time workers (total recordable cases, national, private industry; relative standard error 8.6%; NAICS 23891 level). This is an industry-wide average from a federal survey, not a measurement of this establishment. Source