The control system and the sediment exclusion basin have a design capacity of 6 m3/s (210 cu ft/s).

The length of the tunnel from the intake to the water purification facilities in Kathmandu Valley at Sundarijal is about 26 km (16 mi).

The geology of the areas consists mainly of gneiss with mica schist and laminated quartzite.

The distribution work has nine service reservoirs at various locations in the Kathmandu (Mahankalchaur, Bansbari, Paani Pokhari, Balaju, Khumaltar, Arubari, Tigni, Katunje and Kritipur).

The water from Sundarijal to Service Reservoir is supplied by a Bulk Distribution System (BDS).