First and third stage of water rationing to continue. KUALA LUMPUR: The implementation of the first and third stages of the water rationing plan in Selangor will continue as scheduled until Syabas receives instructions from the state government and the National Water Services Commission (Span). Syabas' Corporate Communications and Public Affairs Department assistant general manager Priscilla Alfred said although the water treatment plants at Cheras Batu 11 and Bukit Tampoi had resumed operation since March 17 and 19 respectively, the company was unable to ensure the stability of the ammonia level. "The ammonia level is still under the supervision of the operator of the water treatment plants. Syabas has been informed that the water treatment plants will be operational according to the quality of the raw water," she said in a statement on Friday.