And you can compare here the groundwater concentrations where the Chlorides have shown high concentrations of the order of 40 milligrams per litre, whereas the TDS concentration is around 2.000 milligrams per litre. And the Pamulavagu the TDS concentration is about 900 milligrams per litre. You can see the Chlorides and Sulphates are of about 300 milligrams per litre.