MANY of Victoria's water storages may be lower than at this time last year, but they are still in good shape.

That's accroding to Andrew Shields, of Goulburn-Murray Water.

Storage levels in many catchments were the highest they had been in years following flooding across the state last January.

Lake Eppalock has dropped most significantly, from 119 per cent capacity last January down to 92 per cent yesterday.

Mr Shields attributed this to a greater demand for water this summer and less inflow.

"We were coming off one of the wettest summers ... and there was still a lot of water going into Eppalock (in January last year) compared to this year, where we've had some demand for water over the last three months," he said.

"There's certainly not as much coming into Eppalock as there was 12 months ago, but it's just tracking down slowly.

"We're losing about one gigalitre per week, so it's only a very slow rate of fall."

Hume was at 93 per cent capacity last January but has since dropped to 76 per cent. "With Hume, there has been more demand for store water because the tributaries below Hume (Ovens and Kiewa rivers) haven't been running as much this year, so to meet downstream requirements they've needed more water out of Hume," Mr Shields said.

Lake Eildon and Dartmouth dams storage levels are both up on last January. Eildon is at 95 per cent, up from 78 per cent, while Dartmouth has increased to 77 per cent.

"With Dartmouth being the drought reserve for the Murray River, there hasn't been any need to call on any water from Dartmouth for supplementary flows from the river, so that's just continued to rise as it was doing this time last year, which is great news," Mr Shields said.

"Eildon this time last year was still filling. We didn't have any need to call on the water out of Eildon and it was just continuing to rise ... now we've had some demand for that water Rocklands Reservoir is now at 50 per cent capacity, more than double this time last year, while Lake Glenmaggie has dropped from 94 per cent to 91 per cent.