The San Mateo County coroner says that an 18-year-old man whose father found him dead in a vat of a sulfuric acid solution last month died of an accidental drowning.
Toxicology tests showed no signs of alcohol or drugs in Fernando Jimenez Gonzalez' system.
Gonzalez died while working at a circuit board-making company in Redwood City. Gonzalez' father discovered his son dead at 1:45 a.m.
on September 23 after becoming concerned when the young man didn't
come home from work.
The coroner said the solution that Gonzalez drowned in was 93-percent water and 7-percent sulfuric acid.
The state Occupational Safety and Health Administration is investigating the incident.