05-19 Potable water and contamination

Question: 05-19Code Section: 7Date:OBC 2006 Reference:

Question: How does Sentence apply to Article and what is the intent?

Interpretation: (On. Reg. 403/97) As the title of the Sub-section would suggest, the intent of the Articles are to protect the potable water systems from contamination. The various Sentences in Article go on telling us where and how to protect the water system.

Sentence (5) is giving us the requirement for premise isolation as stipulated in the CAN/CSA- B64.10.  Like most requirements, there are exceptions and you should note that Sentences (4) and (8) form part of those exceptions.  Sentence (8) is a clarification that Part 9 buildings of residential occupancy do not need to be isolated UNLESS they have access to an auxiliary water supply.