HOUSEHOLDS in Huddersfield could see their water bills rise by almost £1 a week.
They face an annual increase of £49 in the average bill - and that could be even more when inflation is taken into account.
The water regulator, Ofwat, today confirmed that Yorkshire Water's parent company, Kelda, wanted a price rise of about 20%, to start from the year 2009.
Kelda said average household water and sewerage bills were likely to go up from £236 to £285.
Northumbrian Water is proposing a £54 rise to £276, while the company's division covering the Essex and Suffolk region will see the cost of water-only services increase to £160 from £127.
All today's figures exclude the impact of inflation.
Some other UK households face a £100 rise in their water bills over the next five years after water companies published details of their business plans.
Customers of United Utilities are among those likely to see a sharp increase.
The average household bill will rise from £255 now to £356 in 2009/10.
Among the other big water companies, Severn Trent is forecasting a rise in the average bill from £210 to £267.
The figure for Anglian Water is set to be £47 higher at £330.
Water UK, which represents suppliers, says the increases are necessary for maintenance work and improvements costing £22bn.
Ofwat will consider the companies' plans before making draft determinations in August.
The Government will then give its views, before Ofwat gives its final answer in December.
The water companies say the price rises are inevitable.
They argue that billions of pounds has to be spent between 2005 and 2010 on ensuring reliable and secure water and waste water services.
And they say a similar amount had been earmarked to meet higher drinking water and environmental quality standards.