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Rainwater harvesting can revolutionises access to clean water in Sri Lanka – LRWHF

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Tanuja Ariyananda

If a family with four members switch to rainwater harvesting each family members will have access to about 130 litres of water a day, and the water will be free following the initial investment to establish a rainwater harvesting system,

Tanuja Ariyananda of the Lanka Rain Water Harvesting Forum (LRWHF) said during a recent seminar organised by the Institution of Engineers Sri Lanka (IESL).About 40 percent of Sri Lankans still depend on wells, springs and other natural sources to meet the daily water requirement, she said.Given climate change these individuals may face problems accessing quality water in the future, she said.

“There has been a great interest in this system for the past 30 years. Now around the world there are about 160 million people who benefit from this system. They use this for domestic consumption,” she said.

Ariyananda said rainwater harvesting is important to Sri Lanka because water stress is growing due to human activity, urban development, pollution, etc. Droughts and floods have both become more frequent and both affect access to clean water, she said.

“Sri Lankans in many parts of the country can benefit from rainwater harvesting. This can benefit people in arid and semi-arid areas as well as those living in high elevation. It will also help people who use ground water of poor quality. We must not forget that some researchers link arsenic and fluoride in ground water to CKDu,” she said.

Most Sri Lankans are now crippled with high cost of living and rainwater harvesting saves money by reducing the water bill by up to 60 percent. It can also save the electricity bill by reducing the need to operate water motors, etc., she said.

Ariyananda said 60 percent of the rain that falls in the wet zone of the country is wasted as run off. The number is 40 percent in the dry zone, she said.She added that Sri Lanka has about 50,000 rainwater harvesting systems installed.

Ariyananda said a resident of Colombo with a roofing area of 100 square metres can collect about 192,000 litres of rainwater in a year. The number if 147,200 litres of rainwater for Kandy, 102,400 litres of rainwater in Anuradhapura, 83,900 litres of rainwater in Hambantota, 98,400 litres of rainwater in Jaffna and 300,000 litres of rainwater in Ratnapura, she said.

“If we take the case of Colombo and if we assume there are four people in the family, we can collect about 130 litres of water per person per day. This probably exceeds the daily requirement of a person,” she said.

Ariyananda said there are about 340 schools in Colombo and that the average roof area of a school is 1,000 square metres. The annual rainwater that can be collected by the Colombo schools is 548,800 cubic metres. If we calculate the value of water at 60 rupees a cubic meter, it comes to 32,928,000 rupees,” he said.

She added that some Sri Lankans are concerned about the quality of rainwater. A WHO study in 2017 found that the quality of harvested rainwater is second only to piped water. The quality of harvested rainwater is better than water from bore holes, protected springs and dug wells, according to the WHO research.

Ariyananda said a private higher education institution in Malambe recently started harvesting rainwater from a roof area of 5,525 square meters and that the collected water was adequate to meet 75 percent of the total water demand of the university.

“Imagine the savings this establishment made,” she said.

She said that there is a high initial cost to set up a rainwater harvesting system. The initial cost may be daunting, especially if someone is from a poor community.

“However, the state spends about 1.5 million rupees to give a water connection. But we can build a rainwater harvesting system for Rs 200,000 rupees. Then the household gets free water afterwards. The state can save money by giving rainwater harvesting systems to people,” she said.



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Landslide Early Warnings issued to the Districts of Badulla, Kalutara, Kandy, Kegalle, Kurunegala, Matale and Monaragala

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The National Building Research Organisation (NBRO) has issued landslide  early warnings to the districts of Badulla, Kalutara, Kandy, Kegalle, Kurunegala, Matale and Monaragala effective untill 2100hrs on 12th May 2026.

Accordingly,

Level II landslide early warnings have been issued to the divisional secretaries division and surrounding areas of  Passara in the Badulla district.

Level I landslide early warnings  have been issued to the divisional secretaries divisions and surrounding areas of Bandarawela in the Badulla district, Walallawita in the Kalutara district, Pasbage Korale,  Akurana,  Gangawata Korale,  Panvila,  Yatinuwara,  Ganga Ihala Korale,  Doluwa and  Udapalatha in the Kandy district, Mawanella,  Bulathkohupitiya,  Yatiyanthota,  Aranayaka,  Kegalle and  Rambukkana in the Kegalle district, Rideegama in the Kurunegala district, Rattota, Naula and Ambanganga Korale in the Matale district and Badalkumbura and Wellawaya in the Monaragala district.

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Showers about 100 mm are likely at some places in the Western, Sabaragamuwa, Central, Uva, Southern, North-western, Northern and North-central provinces and in Trincomalee district.

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WEATHER FORECAST FOR 11 MAY 2026
Issued at 05.30 a.m. on 11 May 2026 by the Department of Meteorology

 

The low-level atmospheric disturbance in the vicinity of Sri Lanka is likely to develop into a low-pressure area around the next 36 hours. Therefore, the prevailing showery conditions over the island are expected to continue during the next few days.

Showers or thundershowers will occur at times in most parts of the island and Cloudy skies are expected, under the influence of the aforementioned system. Heavy showers about 100 mm are likely at some places in the Western, Sabaragamuwa, Central, Uva, Southern, North-western, Northern and North-central provinces and in Trincomalee district.

The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.

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Treasury theft: Speaker’s conduct brought to IPU’s attention: SJB  

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Dayasiri

SJB MP Dayasiri Jayasekera has sought the intervention of the Inter-Parliamentary Union (IPU) to pressure the JVP-NPP government to respect the rights of the Opposition.

MP Jayasekera told The Island that they wouldn’t allow the NPP to suppress the truth regarding the theft of Treasury funds amounting to USD 2.5 million. He accused Speaker Dr. Jagath Wickremaratne of depriving the Opposition of its legitimate rights, at the behest of the government.

Jayasekera said that the Speaker’s conduct regarding the action taken against Deputy Secretary General of Parliament Chaminda Kularatne, too, had been brought to the notice of IPU and other international associations.

The text of MP Jayasekera’s letter to the Secretary general of IPU: “I respectfully submit this petition seeking the attention and intervention of the Inter-Parliamentary Union concerning a matter affecting parliamentary accountability, the rights of elected representatives, and the proper functioning of constitutional oversight within the Parliament of Sri Lanka.

On 06 May 2026, I Dayasiri Jayasekara MP submitted a formal request to the Hon. Speaker of Parliament seeking permission, under the Parliament (Powers and Privileges) Act No. 21 of 1953 and Standing Order 29(1), to raise a question of privilege regarding alleged constitutional and parliamentary violations by Mr. Harshana Suriyapperuma, Secretary to the Treasury of Sri Lanka.

The proposed privilege motion raised matters including:

1. Alleged violations of Articles 148, 149, and 150 of the Constitution of Sri Lanka concerning parliamentary control over public finance;

2. Alleged failure to report to Parliament concerning a controversial and unlawful transfer of approximately USD 2.5 million from the Treasury;

3. Alleged non-compliance with parliamentary committee procedures under the Standing Orders of Parliament;

4. Questions relating to constitutional eligibility under Article 91(1)(d)(xiii) of the Constitution concerning dual citizenship and qualification to sit and vote in Parliament;

5. A request that the matter be referred to the Parliamentary Ethics and Privileges Committee established under Standing Order 118.

 Despite the seriousness of the constitutional and parliamentary issues raised, the Hon. Speaker declined permission for the privilege issue to be raised in Parliament.

It is respectfully submitted that this refusal has the effect of:

•  Preventing an elected Member of Parliament from exercising his parliamentary oversight function;

• Restricting parliamentary scrutiny over matters involving public finance and constitutional accountability;

•  Undermining the privileges of Members of Parliament to raise matters of urgent public importance;

•  Limiting institutional transparency concerning allegations involving senior state officials.

The right of parliamentarians to raise questions of privilege and matters relating to constitutional governance is an essential component of parliamentary democracy and legislative independence. The refusal to permit even the presentation or preliminary consideration of such a matter raises serious concerns regarding parliamentary accountability mechanisms in Sri Lanka.

Accordingly, I respectfully request that the Inter-Parliamentary Union:

1.Take cognizance of this matter as one affecting the rights and functions of Members of Parliament;

2.Seek clarification from the relevant parliamentary authorities in Sri Lanka regarding the grounds upon which the privilege motion was disallowed;

3.Consider whether the refusal is compatible with internationally recognised principles of parliamentary democracy, accountability, and freedom of parliamentary speech;

4. Encourage the Parliament of Sri Lanka to ensure fair and transparent procedures governing parliamentary privilege motions and constitutional oversight.

I further request that this communication be placed before the appropriate committee or mechanism within the IPU dealing with the rights and duties of parliamentarians.”

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