Here you can find useful information if you are going to create a potable water manual, contingency plan etc.

AMBIO Potable Water
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AMBIO has long experience in potable water treatment and contributes to optimal water quality for the onshore and offshore industry. We carry out risk and vulnerability analyzes, design verifications, prepare drinking water manuals and contingency plans, as well as providing laboratory services. We hold courses in potable water treatment and offer decision support in relation to government requirements, troubleshooting, operation and maintenance of new and existing potable water systems.
Guide to potable water manual