What this document is
A diagnosis of Sri Lanka's solid waste system, centered on the Colombo Metropolitan Region, following the Supreme Court's March 2026 ruling that long-term open dumping at Meethotamulla was unlawful.
- The Supreme Court has ruled the status quo — open dumping — unlawful. The country needs a compliant alternative, now.
- Western Province generates ≈3,500 TPD (60% of the national total); Karadiyana, its largest landfill, is already over capacity and flagged for collapse risk.
- No current public per-ton disposal cost exists — this Assessment is honest about that data gap rather than inventing a figure.
Sri Lanka
Feedstock System Assessmentශ්‍රී ලංකාව
ද්‍රව්‍ය පද්ධති තක්සේරුව
On 31 March 2026, Sri Lanka's Supreme Court ruled that long-term open dumping at Meethotamulla was unlawful — the same practice that killed 32 people when the dumpsite collapsed in 2017. Karadiyana, the Colombo region's largest active landfill, is already over capacity and flagged by the National Building Research Organisation for the same slope-failure risk.
2026 මාර්තු 31 වන දින, ශ්‍රී ලංකා ශ්‍රේෂ්ඨාධිකරණය මීතොටමුල්ලේ දිගුකාලීන විවෘත අපද්‍රව්‍ය බැහැර කිරීම නීති විරෝධී බව තීන්දු කළේය — 2017 දී එම ස්ථානය කඩා වැටී මිනිසුන් 32 දෙනෙකු මිය ගිය එම ක්‍රියාවලියම. කොළඹ කලාපයේ විශාලතම සක්‍රීය භූමි පිරවුමක් වන කරදියාන දැනටමත් ධාරිතාව ඉක්මවා ඇති අතර එම නාය යාමේ අවදානම සඳහාම ජාතික ගොඩනැගිලි පර්යේෂණ සංවිධානය විසින් සලකුණු කර ඇත.
System Characterizationපද්ධති ලක්ෂණ විග්‍රහය
§1.2 — National and Regional Generationජාතික සහ කලාපීය උත්පාදනය
Sri Lanka generates an estimated 8,000–10,000+ tons per day (TPD) of municipal solid waste nationally, of which only 4,500–5,600 TPD is collected — leaving a substantial uncollected/informally-disposed gap and over 260 open dumpsites operating countrywide. The Western Province — encompassing the Colombo Metropolitan Region — generates approximately 3,500 TPD, roughly 60% of the national total, per the Waste Management Authority of the Western Province (WMA-WP).
| Geographyභූගෝලය | TPD | Statusතත්ත්වය | Sourceමූලාශ්‍රය |
|---|---|---|---|
| National generation | 8,000–10,000+ | VERIFIED | 2026 public reporting |
| National collected | 4,500–5,600 | VERIFIED | 2026 public reporting |
| Western Province (Colombo region) | ≈3,500 | VERIFIED | WMA-WP |
| Colombo city proper | 500–1,320 | ESTIMATED | Conflicting measurement bases |
| Open dumpsites, nationwide | 260+ sites | VERIFIED | 2026 public reporting |
§1.3 — Full Feedstock Capability Statementසම්පූර්ණ ද්‍රව්‍ය හැකියා ප්‍රකාශය
ACM's Advanced Circular Manufacturing process is capable of receiving, processing, and converting Sri Lanka's mixed municipal waste stream, including the material currently routed to open dumpsites. Stream composition variation and seasonal (monsoon) load swings are within ACM's operational design envelope.
Logistics and Infrastructureලොජිස්තික සහ යටිතල පහසුකම්
The Colombo Municipal Council (CMC) and neighboring local authorities route municipal waste primarily to the Karadiyana landfill (Boralesgamuwa, ~15 km from central Colombo) and to the Kerawalapitiya Waste-to-Energy facility. The Karadiyana site — the largest active landfill serving the Colombo region — is documented by the National Building Research Organisation (NBRO) as operating over capacity, with slope-failure risk comparable to the conditions that preceded the 2017 Meethotamulla collapse.කොළඹ මහ නගර සභාව (CMC) සහ අවට පළාත් පාලන ආයතන නාගරික අපද්‍රව්‍ය ප්‍රධාන වශයෙන් කරදියාන භූමි පිරවුමට හා කැරවලපිටිය අපද්‍රව්‍ය-සිට-විදුලිබල පහසුකමට යොමු කරයි.
| Facilityපහසුකම | Capacityධාරිතාව | Current Roleවත්මන් භූමිකාව | Sourceමූලාශ්‍රය |
|---|---|---|---|
| Karadiyana Landfill | ~500+ TPD received | Over capacity; NBRO-flagged slope-failure risk; primary Colombo-region disposal site | VERIFIED |
| Kerawalapitiya WtE (Western Power Co. / Aitken Spence) | 700 TPD design capacity, 10 MW | Operational since Feb 2021; 20-yr Waste Supply Agreement with CMC + PPA with Ceylon Electricity Board | VERIFIED |
| Colombo South Waste Processing Facility (Karadiyana W2E, Fairway) | Targeted ~500 TPD | Construction started 2017, targeted 2019; stalled — current operational status unconfirmed | DATA GAP |
| Meethotamulla (former open dump) | Closed following 2017 collapse (32 deaths); Supreme Court ruled the dumping there unlawful, 31 Mar 2026 | VERIFIED |
§2.2 — Feedstock Collection and Aggregationද්‍රව්‍ය එකතු කිරීම සහ සමුච්චය කිරීම
Sri Lanka has no rail-haulage network for municipal waste comparable to systems used elsewhere. Collection runs through more than 380 local authorities (Municipal Councils, Urban Councils, and Pradeshiya Sabhas) nationally, each operating its own trucks and contracts. Siting Phase Initial adjacent to Karadiyana (Proposal §2.4, Site P1) means feedstock arrives on collection routes local authorities already run — no new collection infrastructure is required, only a redirected endpoint. Aggregating supply reliably beyond the Colombo Municipal Council's own contribution requires either a Western Province Waste Management Authority-brokered multi-council agreement, or direct agreements with the largest individual contributing councils.ශ්‍රී ලංකාවේ නාගරික අපද්‍රව්‍ය සඳහා දුම්රිය ප්‍රවාහන ජාලයක් නොමැත. එකතු කිරීම ප්‍රාදේශීය අධිකාරීන් 380කට වඩා හරහා සිදු වේ.
§2.3 — Informal Waste Pickersඅවිධිමත් අපද්‍රව්‍ය එකතු කරන්නන්
§2.4 — Water Stress and Grid Reliability Contextජල ආතතිය සහ විදුලි ජාල විශ්වසනීයත්ව සන්දර්භය
| Metric | Figure | Source |
|---|---|---|
| National water stress (freshwater withdrawal as % of available renewable resources) | 90.8% — "highly water stressed" | VERIFIED FAO |
| National grid — February 2025 island-wide blackout | 5–6 hour outage, triggered by a grid substation fault under high solar penetration / low system inertia | VERIFIED public reporting |
| Rolling power-cut schedule following 2025 blackout | 1.5-hour scheduled outages implemented by Ceylon Electricity Board | VERIFIED |
Cost Structureවියදම් ව්‍යුහය
§3.2 — Investment Framework (Board of Investment)ආයෝජන රාමුව (ආයෝජන මණ්ඩලය)
| Elementඅංගය | Detailවිස්තර | Sourceමූලාශ්‍රය |
|---|---|---|
| BOI tax incentives | Tax holidays, concessionary rates, duty exemptions on capital goods for qualifying manufacturing | VERIFIED |
| Export manufacturing threshold | >90% export (60% for apparel/ceramics) qualifies for customs duty exemption on capital goods/raw materials | VERIFIED |
| Section 17 Strategic Development Project | Qualifying projects may receive tax exemptions up to 25 years | VERIFIED |
| 2025 FDI | $1B total, +72% YoY; manufacturing = largest sector at 46% share | VERIFIED |
Regulatory Baselineනියාමන පදනම
| Itemඅංගය | Statusතත්ත්වය | Sourceමූලාශ්‍රය |
|---|---|---|
| Meethotamulla Supreme Court ruling | 31 March 2026 — long-term dumping ruled unlawful | VERIFIED |
| 2017 Meethotamulla landslide | 32 deaths; site subsequently closed | VERIFIED |
| National Policy on Waste Management | Approved by Cabinet, October 2019 | VERIFIED |
| Karadiyana NBRO risk assessment | Flagged for slope-failure risk; over capacity | VERIFIED |
| Government (as of 2026) | President Anura Kumara Dissanayake; PM Harini Amarasuriya; Minister of Environment Dammika Patabendi (NPP, since 2024) | VERIFIED |
Executive Implications — Regulatory
- The Supreme Court has already ruled the status quo unlawful. This is not a prospective risk — it is a decided legal finding the government must now act on for Meethotamulla, and faces exposure to for every comparable site nationwide.
- Karadiyana is next in line for the same finding. The NBRO's own risk assessment describes conditions comparable to pre-collapse Meethotamulla.
- No engineered alternative currently exists at the scale required. Kerawalapitiya WtE addresses 700 TPD; the remaining Western Province volume has nowhere compliant to go.
Feedstock Opportunityද්‍රව්‍ය අවස්ථාව
| Scenarioතත්ත්වය | TPD | Notesසටහන් |
|---|---|---|
| Karadiyana current receipt (crisis-priority) | ~500 | Matches Phase Initial sizing — directly addresses the NBRO-flagged risk |
| Western Province total generation | ~3,500 | Full addressable ceiling for Phase Expanded, per WMA-WP |
| National uncollected/informally-dumped gap | ~3,000–5,000 | Longer-horizon national opportunity beyond the Western Province anchor |
Infrastructure Map — Colombo Regionයටිතල පහසුකම් සිතියම — කොළඹ කලාපය
The following two-panel display shows current waste management facilities across the Colombo Metropolitan Region. The right panel is always visible. When a Google Maps API key is configured in config.js, the interactive map renders in the left panel.
Executive Implications — Feedstock System Assessment
- The Supreme Court has already ruled the current disposal practice unlawful. This is a decided legal fact, not a forecast — creating an immediate compliance imperative.
- Karadiyana is the highest-priority site. NBRO's own risk finding places it in the same category that produced the 2017 Meethotamulla disaster.
- Western Province's ~3,500 TPD (60% of the national total) is the addressable ceiling for a full-scale deployment, anchored by a national-government counterparty.
- No current published disposal-cost figure exists — this Assessment says so plainly rather than presenting a fabricated number as verified.
Appendix A — Evidence Chain
| Claim | Source | Date | Type |
|---|---|---|---|
| Meethotamulla Supreme Court ruling | Sri Lanka Supreme Court; public reporting | 31 Mar 2026 | VERIFIED |
| 2017 Meethotamulla landslide, 32 deaths | Multiple public sources | 14 Apr 2017 | VERIFIED |
| Western Province generation ~3,500 TPD (60%) | Waste Management Authority, Western Province | Current | VERIFIED |
| National generation 8,000–10,000+ TPD; 260+ open dumpsites | 2026 public reporting (Mongabay, Eco-Business) | 2026 | VERIFIED |
| Karadiyana over capacity / NBRO risk finding | National Building Research Organisation | Ongoing | VERIFIED |
| Kerawalapitiya WtE 700 TPD / 10MW, operational Feb 2021 | Public reporting; Aitken Spence PLC | 2021 | VERIFIED |
| Colombo city TPD (500–1,320 range) | Conflicting public sources | 2025–2026 | ESTIMATED |
| Current disposal cost per ton | No current published figure found | DATA GAP |
Appendix B — Change Factors
- Government response to the Supreme Court ruling. How the government responds to the Meethotamulla finding — and whether it proactively addresses comparable sites like Karadiyana — will shape the urgency and structure of any engagement.
- Colombo South Waste Processing Facility status. If the stalled Karadiyana W2E project (Fairway Waste Management) resumes or is confirmed abandoned, addressable volume at that specific site changes materially.
- BOI Strategic Development Project designation. Section 17 status (up to 25-year tax exemption) would materially improve deal economics if granted.
Appendix C — Sources and References
Public Sources — All Citations External and Readable
- Sri Lanka Supreme Court ruling on Meethotamulla — public reporting, 31 Mar 2026
- Waste Management Authority of the Western Province — wma.wp.gov.lk
- 2026 Census of Sri Lanka — population and Western Province share
- National Building Research Organisation (NBRO) — Karadiyana risk assessment
- Board of Investment of Sri Lanka — investsrilanka.com
- Mongabay / Eco-Business, 2026 — national generation and open-dumpsite reporting
All sources are publicly accessible. No internal Carbotura identifiers used in citations above.