PECB ISO-14001-Lead-Auditor Question Answer
An oil organisation has a natural gas treatment plant on land crossed by several small rivers. On one particular day, after heavy rainfall for 48 hours, some of those rivers burst their banks and flooded the water treatment facilities of the plant. The oil-contaminated water reached some scarcely populated areas nearby.
Soon after, an internal audit was carried out to particularly analyse this event that was considered a nonconformity. There were no records of such heavy rainfall in the past 200 years.
Which three of the following actions are 'corrections'?