What happened in this inspection
Cal/OSHA opened a complaint inspection of Semano Inc. at 31757 Knapp Street, Hayward (Alameda County) on Oct 17, 2007. It was a complete inspection of the worksite focused on health hazards. 41 employees were recorded at the site. Inspectors issued 19 citations (3 serious) and proposed $18,255 in penalties; the current total is $8,675. The case closed on Jan 15, 2009. The employer has 2 other inspections on its California record.
Citations
Each citation names the rule, its classification and the penalty as proposed and as it stands now.
Issued Jan 4, 2008. Proposed $410, current $200. 2 instances. 41 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $550, current $400. 2 instances. 25 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $550, current $0. 15 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $410, current $0. 13 instances. 25 workers exposed. Abatement due Jan 14, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $410, current $300. 41 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $515, current $300. 3 instances. 3 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $305, current $225. 2 instances. 5 workers exposed. Abatement due Jan 24, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $340, current $200. 41 workers exposed. Abatement due Jan 24, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $410, current $300. 22 workers exposed. Abatement due Jan 24, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $550, current $0. 12 instances. 8 workers exposed. Abatement due Mar 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $305, current $225. 4 workers exposed. Abatement due Jan 14, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $305, current $225. 5 workers exposed. Abatement due Jan 24, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $275, current $200. 2 instances. 41 workers exposed. Abatement due Jan 14, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $275, current $200. 2 instances. 41 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $275, current $0. 2 instances. 41 workers exposed. Abatement due Feb 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $3,710, current $1,800. 2 instances. 8 workers exposed. Abatement due Jan 14, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $3,710, current $1,800. 5 workers exposed. Abatement due Mar 6, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $2,475, current $1,800. 3 instances. 5 workers exposed. Abatement due Jan 14, 2008, completed. Read the rule.
Issued Jan 4, 2008. Proposed $2,475, current $500. 5 workers exposed. Abatement due Jan 24, 2008, completed. 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 310061700. 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 310061700, 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.