Works, transport, infrastructure and communications committee chairman Fazli Salleh said the projects include the Semanggar package valued at RM70 million, with a capacity of 50 million litres per day (MLD).
The plant is expected to be completed next year and will supply water to the Kulai and Sedenak areas.
Fazli said the Layang 2 phase two project, valued at RM114 million and designed with a capacity of 160 MLD, is expected to be completed in 2027 and will supply water to the Johor Bahru and Iskandar Puteri areas.
“There are also two additional projects – Semanggar 3 and Kayu Ara Pasong – costing RM750 million and RM537 million, respectively, currently at the conceptual and detailed design stages.
“These projects, with a combined capacity of 290 MLD, will serve the Johor Bahru, Kulai and Pontian areas,” Bernama reported him as saying.
He was replying to Jefridin Atan (BN-Kukup), who asked about the status of the new projects and assurance of clean water supply until 2030 in the state assembly today.
It was reported in November last year that the Layang 2 phase two project would cost RM200 million.
Fazli said the original capacity proposed by Ranhill SAJ for the Kayu Ara Pasong package was 30 MLD. However, with the implementation of the Sungai Pontian Besar riverside water reservoir, which has a capacity of 90 MLD, the state government has proposed increasing the plant’s capacity to 90 MLD.
“Pengurusan Aset Air Bhd has proposed that the plant be constructed first with a capacity of 30 MLD at a cost of RM191 million, with the remaining 60 MLD to be implemented in phase two.
“The entire project is expected to benefit 46,119 consumer accounts in the Pontian district,” he said.
He said the demand for treated water in Johor is expected to continue rising, driven by industrial expansion, population growth, and major strategic developments, including the Johor-Singapore special economic zone (JS-SEZ) and the rapid development of data centres.
Johor currently operates 48 plants with a total design capacity of 2,352 MLD, with the average production in 2025 standing at 2,037 MLD.
Projections indicate water demand will increase to 2,700 MLD by 2030, 3,000 MLD by 2035 and 3,300 MLD by 2040.