March 2017
One of the quick wins that has come out of the Government Inquiry into Havelock North Drinking Water evidence, is the need for planning around boil water notices. It was identified by the Hawkes Bay District Health Board, the Drinking Water Assessors and Hastings District Council that better planning and preparedness around boil water notices would have saved time in notifying residents of the need to boil water.
One of the roles confirmed by the Inquiry is that it is the water suppliers which are the agency responsible for issuing a boil water notice. Drinking water assessors and the Medical Officer of Health can recommend a boil water notice be issued, and in many cases would provide input into water utilities making the decision to issue a boil water notice. There are also situations where the need to issue a boil water notice is an obvious conclusion and the water utility can act promptly and hopefully mitigate any illness from occurring in the community, i.e. a broken drinking water main where waste water is known to have entered.
If a health emergency is declared then the Medical Officer of Health powers escalate beyond providing recommendations to water utilities, to instructing water utilities to carry out actions.
The trigger for a water utility to issue a boil water notice should be identified in the Water Safety Plan or a document the WSP refers to. A significant part of a boil water notice plan is the communication methods used to notify the consumers.
Not only is there a need for having a prepared boil water notice, there also exists the need for:
There were a number of recommendations and thoughts that have come from the Inquiry and its’ line of questioning:
A pre mortem is lot easier and less stress to carry out than a post mortem!
Attached is the American Drinking Water Advisory toolbox provided via Peter Wood - Central North Island Drinking Water Assessor Technical Manager, it is a great document for getting the jump boil water notice preparation.
Regards
Noel Roberts
Technical Manager
Water NZ