What happened in this inspection
Cal/OSHA opened an accident inspection of Diamond Well Service, Inc. at 12888 Holloway Road, Lost Hills (Kern County) on Jun 18, 2025. It was a partial inspection focused on safety hazards. 4 employees were recorded at the site. Inspectors issued 3 citations (3 serious) and proposed $18,670 in penalties; the current total is $16,650. 3 citations were contested before the Appeals Board. The case closed on Mar 3, 2026. The employer has 1 other inspection on its California record.
Citations
Each citation names the rule, its classification and the penalty as proposed and as it stands now.
Issued Dec 3, 2025. Proposed $12,600, current $12,600. 1 workers exposed. Contested Jan 6, 2026, final order Feb 27, 2026. Abatement due Dec 15, 2025, completed. Read the rule.
Issued Dec 3, 2025. Proposed $3,035, current $2,025. 1 workers exposed. Contested Jan 6, 2026, final order Feb 27, 2026. Read the rule.
Issued Dec 3, 2025. Proposed $3,035, current $2,025. 1 workers exposed. Contested Jan 6, 2026, final order Feb 27, 2026. Read the rule.
Your rights
If you worked at this site, the inspection file is a public record once the case closes; request it from the Cal/OSHA district office with activity number 348325135. A worker who reported the hazard, the injury or the inspection and was then fired, demoted or cut has a retaliation claim under Labor Code 6310, one year to file with the Labor Commissioner and longer to sue. Injuries themselves go through workers' compensation. Free, confidential review: (800) 371-3088.
Source: U.S. Department of Labor OSHA enforcement data, inspection 348325135, checked Nov 1, 2026. How to read a record. Back to the safety tracker.
About this data: Records come from the U.S. Department of Labor's OSHA enforcement datasets (inspection, violation, accident and accident injury tables), which carry Cal/OSHA's state-plan inspections alongside federal ones. We load every inspection of a California worksite opened since January 1, 2000 and refresh it weekly. Employer names, addresses and industry codes are as the inspecting office recorded them; similar names are grouped where they clearly refer to the same employer. A citation can be reduced, vacated or withdrawn on appeal, and an inspection can stay open for months, so a record can change. Penalties shown as "current" reflect the latest status in the federal file. This page is public information about the employer's regulatory record, not legal advice and not a statement that any person was harmed or any law broken beyond what the record states.