Japan has pledged more than Rs 600 million for a five-year programme to monitor and improve water quality in the Kelani River basin, the source of drinking water for Colombo and much of the Western Province. The first consignment of water testing equipment was handed to Environment Minister Dr Dammika Patabendi on Monday.

The project runs from 2026 to 2030 and is implemented through the Japan International Cooperation Agency (JICA) and the Japan Science and Technology Agency (JST) under the SATREPS programme, the Daily Mirror reported. It will establish a basin-wide monitoring network and an aquatic environment data platform intended to put government policy on the river on an evidence base.

The equipment was handed over by Japanese representatives at a meeting of the project’s steering committee at the Central Environmental Authority auditorium, and then distributed among the CEA, the University of Moratuwa and General Sir John Kotelawala Defence University. The university’s Aquatic Environment Data Operations Centre will have a central role in running the network, the Daily FT reported. Beyond equipment, the programme covers policy frameworks, staff training, technical expertise and published research.

The scale of what is being measured

The Kelani runs about 145 km through a basin of roughly 2,300 square kilometres. Around a quarter of Sri Lanka’s population lives inside it. The basin holds 14 major water treatment and distribution facilities and more than 5,400 industries, including operations authorised by the CEA in the Biyagama and Seethawaka industrial zones.

Against that, the pollution load the project is meant to track comes from industrial wastewater, untreated sewage, agricultural waste, and sand and gem mining. Both filings also name floods and droughts as pressures on water quality — and note that there are no specific groundwater quality standards in place, which the Daily FT flags as a particular concern because groundwater supplies drinking water to many Western Province households.

Who is running it

The steering committee is led by Environment Ministry Secretary K.R. Uduwawala, with Professor So Kasama of Tohoku University as principal investigator. Monday’s meeting was attended by JICA representatives, CEA Chairman Professor Tilak Hewawasam, CEA Director General Kapila Rajapaksa, Professor Lalith Rajapaksa of the University of Moratuwa’s Department of Civil Engineering, the Kaduwela Municipal Commissioner and ministry officials. The Department of Irrigation, the Water Resources Board and the Clean Sri Lanka Secretariat are also involved.

The timing

The handover took place while the Kelani was itself under a flood warning. The Irrigation Department has warned of minor flooding in low-lying areas of the Kelani and Attanagalu Oya basins during the current weather spell, and the river is among those this desk has recorded as showing significant rises as reservoirs across the country spill. Flood events are one of the specific water-quality risks the new monitoring network is designed to capture, so the conditions on the day of the handover are an illustration of the problem rather than a coincidence.

Not reported

Neither filing gives the exact rupee figure behind “over Rs 600 million”, says whether the pledge is a grant or a loan, or breaks the money down between equipment, training and platform development. Neither says how many monitoring stations the basin-wide network will have, where they will be sited, or whether the resulting data will be published openly.

Neither filing states whether this is the same project as any earlier cabinet-approved JICA scheme for Kelani monitoring, and this desk has not established that relationship. No filing says what happens to the monitoring network after the programme ends in 2030, or who meets its running costs.