Torbay MP Adrian Sanders highlighted the historic "injustice" of high water charges in Devon and Cornwall, in a Westminster Hall debate on 27 January 2010.
Mr Sanders said the average water bill for a South West Water customer is 43 per cent higher than the national average.
The Lib Dem MP said that since water companies were privatised customers in the region - representing three per cent of the population - had been paying for the maintenance and clean up of 33 per cent of the nation's coastline.
The independent Walker review of water charges across the country set out a number of options for addressing the disparity - including a one-off payment, or South West Water customers' bills being subsidised by the rest of the country.
Mr Sanders urged the government to look in detail at all of the proposals.
DEFRA Minister Huw Irranca-Davies said industry regulator Ofwat would be considering all of the proposals within the report before advising ministers.