Melamchi Water Supply Project - 2026 Overview

Reliable water supply planning for Kathmandu Valley

The Melamchi Water Supply Project is a strategic water infrastructure program designed to divert raw water from the Melamchi River system, treat it at Sundarijal and support safer supply to Kathmandu Valley. In 2026, the public value of the project depends on practical operation, transparent reporting and careful seasonal risk management.

This page focuses on the core water supply mission: source operation, diversion tunnel safety, treatment performance, environmental safeguards, community coordination and public communication. Unrelated items have been reduced so visitors can quickly understand what the project does, what is being monitored and why each activity matters.

Core operating goal

Maintain safe transfer, treatment and distribution readiness while protecting the intake area, tunnel assets and water quality during normal and high-risk seasons.

Public information goal

Provide clear updates on maintenance windows, source conditions, treatment status, affected communities and published reports.

Major Works and Current Role

Melamchi Diversion Scheme

The diversion system carries raw water through the long tunnel corridor from the Melamchi source area toward Sundarijal. In 2026, technical attention should remain on intake safety, flood and sediment protection, tunnel inspection, controlled flow operation and emergency access readiness. Read More

Water Treatment Plant

The Water Treatment Plant treats Melamchi raw water before it enters the bulk distribution system. Key tasks include turbidity monitoring, filtration performance, disinfection control, sludge handling, laboratory checks and preparation for future capacity expansion. Read More

Social and Environmental Support

The project depends on community engagement, environmental safeguards and transparent coordination with affected areas. Current priorities include grievance handling, watershed protection, local employment where possible and clear communication during seasonal shutdown or restart periods. Read More

2026 Status Snapshot

This snapshot gives visitors a practical technical view of the project without overloading the page with disconnected content.

Area	2026 focus	Why it matters
Source and intake	Seasonal operation planning, sediment control, flood-risk monitoring and access-road readiness	Protects the tunnel and treatment process during high-turbidity periods.
Diversion tunnel	Routine inspection, drainage checks, adit access, instrumentation review and safety reporting	Supports reliable transfer and reduces the risk of unexpected service interruption.
Treatment plant	Coagulation control, filtration checks, disinfection records, sludge management and laboratory verification	Ensures treated water meets public health expectations before entering the bulk system.
Community and safeguards	Consultation, grievance records, local coordination, environmental monitoring and public notices	Keeps the project accountable to affected communities and local administrations.
Public reporting	Monthly updates, maintenance notices, procurement links, water quality summaries and archive access	Makes project information easier to verify for residents, journalists and institutions.

Operational Priorities for 2026

Keep intake operation aligned with rainfall, turbidity and sediment forecasts.
Maintain a documented tunnel inspection schedule before and after high-risk weather periods.
Review treatment plant performance indicators including turbidity removal, residual chlorine and filter run time.
Publish short maintenance notices before planned shutdowns or reduced-flow periods.
Keep environmental and social safeguard records accessible through reports and consultation notes.
Coordinate early with Kathmandu Valley utility operators before restart, flushing or supply normalization.

Suggested public update format

A useful notice should answer five questions: what work is being done, where it is happening, when it starts, who may be affected and when the next update will be published.

Water Quality and Safety Checks

Field-level checks

Raw water turbidity and visible sediment load
Intake screen and gate condition
Access route, drainage and slope condition
Communication readiness between source and plant teams

Plant-level checks

Coagulant dosing and jar test review
Filter performance and backwash records
Disinfection contact time and residual chlorine
Laboratory records and exception reporting

Thematic News and Field Updates

Pre-Monsoon Inspection Program for 2026

Before the high-rainfall period, the project team should review the intake, access road, tunnel entry points, drainage condition and emergency communication channels. The goal is to reduce avoidable shutdowns and improve restart planning after heavy weather.

Community Coordination Around the Source Area

Regular dialogue with local stakeholders remains essential for safe source operation. Clear updates on maintenance, compensation procedures and environmental measures reduce confusion during sensitive operating periods.

Treatment Plant Maintenance and Calibration

Planned maintenance should include calibration of monitoring equipment, inspection of chemical dosing systems, filter backwash review and verification of water quality records. These actions help plant operators detect issues before they affect consumers.

More Useful Public Notices for Residents

Public communication should avoid vague wording. Each notice should include a date, affected component, expected duration, operational impact and contact path for questions. This makes the website more useful for residents and media teams.

Energy Backup and Utility Resilience

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Digital Records for Public Infrastructure

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Procurement, Documentation and External Reference Notes

Large public infrastructure projects require clear documentation, transparent procurement and careful review of service providers. The same principle applies across regulated industries. The Tobique gaming license page, for example, outlines licensing basics and jurisdictional conditions for remote gambling projects.

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