Consumer rights groups pointed out that over 1.5 million citizens are adversely impacted three months per year due to the brackish waters of the Indian Ocean seeping into the Kalu Ganga as a result of the erosion caused by illegal sand mining in the estuary.

Generally, the water level of the Kalu Ganga is higher than the sea level, yet during the months of drought the sea level rises above the level of the river.

The National Movement for Consumer Rights Protection (NMCRP) observed that in the Kalutara area due to the erosion there was an issue concerning drinking water.

Near the estuary area sand mining is allowed only once a week, yet due to the influence of politicians it is not the case, Chairman of the NMCRP, Ranjith Withanage said.

Withanage said that the National Water Supply and Drainage Board had no way of filtering brine water.

“People should not be made to pay the same amount they pay for water of the Grade A sample which is fit for drinking, bathing and cooking, for water of the Grade B sample”, he noted while  adding that therefore the water bills of the people affected should be reduced.

He explained that people also needed to curtail the amount of salt they consumed.