Partially-treated waste water could be released into rivers and seas because of a chemical shortage caused by Brexit.
An expected vote to declare an emergency next week must mark a 'significant step change' in approach, campaigners say.
But council chiefs say they have to get on with tackling the issue, rather than seeking the public's views.
A motion back by the leader is to go before councillors in September recognising a 'scientific and moral need to act'.
Activists say council chiefs' plan to focus on its own emissions is 'fiddling in the margins'.
Proposals to be outlined at a committee meeting next week could see the aim brought forward even more.
The planting of wild-flower strips has brought words of praise from happy boaters.
Refill: Swaffham gets support from town businesses in a new eco-scheme.
More than £4 million is available to help innovative projects come up with safe ways for broadband cables to be added to water pipes.
An operation to clamp down on unlicensed angling in our area is already proving effective, officials claim.
A special planning meeting today heard claims the technology was not needed in this region, or anywhere else in Britain.
Campaigners say they fear Norfolk's waste could be sent to an incinerator half a mile from the county border if it gets the go-ahead.
Morrisons petrol stations are offering customers free water refills at its forecourts in a bid to cut plastic waste.
A special committee meeting will consider the scheme later this week, but officials say some air quality and heritage issues have not been addressed.
