This is how much water 50,000 Tamworth Country Music Festival goers actually use

In fact, council water director Bruce Logan said people watering their gardens during summer use far more water per day than the festival goers.

Mr Logan said over the whole 10-day festival period, water consumption increased by roughly five megalitres.

"To put that in perspective, at the moment Tamworth is using around 17 megalitres a day," Mr Logan said.

"So if we were to cancel the festival, we'd save a third of a day in terms of supply.

"It really is an insignificant amount of water that is being consumed by the visitors in the festival."

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Mr Logan's comments follow social media calls to cancel the festival, which injects $50 million in to the local economy, due to water concerns. Council has rejected any notion of cancelling the festival.

"Majority of the water used in Tamworth, especially in Summer, is used on our gardens," Mr Logan said.

"No one who comes to town brings a garden with them, so they don't use anywhere near the level of water residents use when watering their gardens in those hot periods.

"That's why, when you restrict water to purely domestic and internal use, the numbers fall drastically."

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It's not the first time the festival's water viability has been called into question - council field the same questions during a dry spell at the end of 2014.

"In my experience, when we're in some sort of drought at this time of year, there are calls or questions about whether the festival should proceed because of water issues," Mr Logan said.

"Every time, we've been quite consistent and said the festival does not consume a significant amount of water."

Recently, residents have been doing a great job of conserving water, with the city using a megalitre or two less than its targeted 18 megalitres a day.

"As it gets hotter, people will look to their evaporation air conditioners and we would expect to see some increase," Mr Logan said.

"Maybe [an extra] two megalitres a day."

If Chaffey Dam continues to drop at its current rate, Tamworth, Moonbi and Kootingal will move to Level 5 restrictions in September, once it hits 20 per cent.