ECONOMYNEXT – Sri Lanka has imported 27 containers, or 550 metric tons, of hydrated lime for water purification, which does not meet accepted guidelines for chromium content, an opposition legislator said.
“The new government in the last two weeks have imported 27 containers with 550 metric tons of hydrated lime, which lab results show contain 14 milligrams of chromium per 1 kilogram,” D V Chanaka said in parliament.
“The standard is 10 milligrams of chromium per 1 kilogram of lime,” he said, as per the recommendations of the Health Ministry, Water Board and Sri Lanka Standards Institution.
Hydrated lime is used in Sri Lanka’s water purification plants in Ratmalana, Galle and Ambatale to maintain the pH balance in pipeborne water, Chanaka said.
“A majority of Sri Lankan’s drink tap water. If the Chromium content in water increases, it can cause cancer, kidney and liver problems, intestinal problems. If pregnant mother drinks it, they can give birth to babies with low birth weight or deformities.”
The normal process for hydrated lime imports to the country, he said, is that a Water Board engineers go to the country hydrated lime is imported from and test it first for chromium content.
“Then a sample is tested in an ISO standard lab here.” Only then is it released to the plants.
“How did this consignment come to Sri Lanka?
“The Water Board has sent the sample for testing to a private lab instead of re-exporting it, and the lab test showed 14mg content. Now they are asking that the guidelines be changed.”
He said the lime had already been released to the Ratmalana plant. (Colombo/Feb6/2025)