Dungowan weir has halved Tamworth's transmission water losses

The news comes as Chaffey Dam drops below 15 per cent for the first time in more than a decade.

Tamworth water director Bruce Logan said reducing the distance water had to travel along the Peel River had drastically reduced the amount of water lost through absorption and evaporation.

"Releases from Chaffey Dam to supply 20 megalitres to the weir are in the low 30 megalitres," Mr Logan said.

"That means we've halved our losses since the weirs has been introduced and that's fantastic new."

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While the dam may have dropped below another milestone, Mr Logan said no further water restrictions would be put in place.

"Chaffey hitting 15 per cent is a trigger point in our engagement plan, but there is no different response other than we will change how we engage with the community in relation to trying to get the message out," he said.

"We'll try and step those messages up, particularly around encouraging and communicating that 150 litre per person per day goal."

A number of residents in the Somerton area are disappointed with the decision to cut the river's flow, and claim they weren't consulted by council.

However, Mr Logan said it was not council's decision to halt the Peel, it was the state government, who also lead community consultations.

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