Sri Lanka, Feb. 7 -- A tender has been awarded to supply 1,500 metric tonnes of lime chemical for water treatment on July 31, 2024. On approval of the pre-shipment test reports carried out with the participation of (Water Board) NWSDB officials which were acceptable, the first consignment of 380 tonnes was delivered. As per the procedure the samples from stocks arrived were re-tested by NWSDB and found Cr level is exceeding the limits (10 mg/ltr).
However in the meantime SLS has revised the threshold limits to 12mg/ltr. by following their procedures. The samples checked after arrival is found to exceed 10. As such the NWSDB has kept this consignment in stores separately without using.
In the meantime the second shipment of another 209 ton...