Paro’s decades-old sanitation headache is finally poised for relief. After years of untreated wastewater coursing into the Paro Chhu—marring its crystal-clear flow and jeopardizing public health—a comprehensive Local Area Plan (LAP) has been green-lit alongside a Nu 170 million proposal to install a modern sewage collection and treatment network.
Under the updated LAP, engineers will map out a gravity-fed pipeline system stretching from the town’s western fringe through its bustling market district, terminating at a new treatment plant site just outside the municipal boundary. Once completed, the network will intercept every household drain and commercial outlet, diverting raw sewage away from the river and into sealed conduits.
“The health implications of our current setup cannot be overstated,” explains Karma Dorji, Paro’s Chief Planning Officer. “Not only has pollution threatened aquatic life, but residents living downstream have reported repeated cases of waterborne illnesses. This infrastructure will be a game-changer for public health and environmental stewardship alike.”
Construction is slated to begin in early 2026, with an 18-month timeline to full operation. Work will unfold in stages to minimize disruption: Phase 1 focuses on the old town core, where the riverbank shows the most severe scouring and odor issues; Phase 2 will extend service to newer neighborhoods and commercial zones.
Beyond engineering, the plan includes a public awareness campaign. Through community workshops and school programs, town officials hope to foster a culture of responsible water use and proper waste disposal. “Infrastructure alone won’t solve the problem,” notes Senior Engineer Tashi Choden. “We need citizens to understand the value of their river—once that’s ingrained, the system can deliver its full benefits.”
The Nu 170 million investment is largely covered by a grant from the National Environment Fund, with the remainder financed through municipal bonds and a small user-fee levy. Authorities assure residents that the levy will be modest and phased in only after the network proves its reliability.
Once operational, Paro’s new sewerage network is expected to remove an estimated 1.2 million liters of untreated wastewater per day from the Paro Chhu, restoring its legendary clarity and supporting local agriculture through safe, reusable water effluent. If all goes to plan, Paro will set a benchmark for sustainable urban development in Bhutan’s valley towns—proving that even age-old challenges can be overcome with forward-thinking design and community engagement.
