Hastings District Council local incident controller Alison Banks said the council had tried to cover the facilities that had extra people coming in or were using water for public food preparation.
"We have a team that's working 24/7 keeping in touch with key contacts and have advised them to boil the water or use the clean water being brought in until the boil water notice is lifted - we're keeping tight communication with them."
One of the contacts was Neighbourhood Watch member and local Civil Defence co-ordinator Richard Gaddum who had lived in Waimarama for about 20 years and said people were fairly accepting of the situation.
"We are a resilient lot and accept that these things happen - that's what little communities do."
He said that on Saturday in his Civil Defence role he went out in the ute with the loudspeaker a couple of times to alert residents to the situation.
"The council has been very good - the E.coli levels were very low but they got onto it quickly - from past experience that was the right thing to do."
As of yesterday, although further water testing had shown "clear" preliminary results on Sunday, the boil water notice remained in place while the council determined what had led to the positive test on Saturday.
Chlorine was flushed through the system on Saturday night, after a "1" and a "2" result was logged. A result of "10" was considered high.
A large sign informing of the boil water notice had been erected on the road into Waimarama, and public drinking taps had been turned off and taps in public toilets signposted as "For hand washing only. Please do not drink."