IRRIGATORS are furious over proposed change to tariffs, ''missing'' millions in funds and poor record-keeping by Goulburn-Murray Water.
At meetings in recent weeks they have called on both the Esssential Services Commission and Water Minister Peter Walsh to step in.
Murray Valley Water Services Committee chairman Barry Croke said GMW had not explained why it stopped issuing annual district profit and loss statements.
''We've been asking for the last two years and have not received one,'' he said.
''They haven't explained why.''
At stake is more than $5 million the WSC had accumulated from irrigator contributions to pay for maintenance and capital expenditure not covered by the $2 billion Northern Victoria Irrigation Renewal Project.
''Two years ago, the last statement said we had about $5 million,'' he said.
''We've lost track of that money.''
Rochester-Campaspe WSC chairman Richard Anderson said his district had the largest surplus, although he did not specify the amount.
''There's no indication we're going to lose it, people are jumping to conclusions,'' he said.
But Mr Anderson conceded it was ''unusual'' not to receive district profit and loss statements given that they'd been issued each year since 1994.
He said discussions were continuing on whether GMW would implement universal pricing across all districts.
Concern also has been expressed over plans to raise GMW's debt from $90 million to $150 million over the next three years.
A group of Woorinen irrigators plans to lodge a complaint with the Victorian Civil and Administrative Tribunal this month over questions it says GMW has failed to answer about cost blowouts in the Woorinen pipeline project, how a $15 million loan could have a balance of $15.4 million after a decade of repayments and why the 40-year term of the loan had been extended to 75 years.
''We want all the paperwork to show the reasons why they've done this and where our money's gone over the last nearly 10 years,'' spokeswoman Vicki Holland said.
Mr Walsh urged irrigators to do all they could to engage in consultation with GMW.
There had been significant improvements in communication since the new board was appointed in 2010-11.
''As we all know, GMW was in a mess when we came to government,'' he said
GMW managing director Gavin Hanlon said ''substantial feedback'' had been received since a discussion paper proposing changes to the tariff system, including a single price on the backbone where irrigators received a similar level of service, was released in July.
''We have heard very loudly that our customers don't like the current structure of tariffs, in particular the way delivery fees and delivery shares are charged for,'' he said.
''We aim to release the next version of that for consultation around February-March, so no decisions have been made.''
Mr Hanlon said district bank accounts had not been managed well for a number of years, but GMW had committed to ''recognising those bank balances ... and squaring the ledger properly''.