Water Supply

Per Capita Water Demand

Total design water demand for a settlement. Default per-capita demand follows Nepal Water Supply Sector practice (typically 65–135 LPCD depending on the service category).

Formula

Demand = Pop × LPCD × (1 + losses) + commercial / institutional / fire

Domestic

Design populationpersons

Per-capita demand (LPCD)

Non-domestic

Commercial & institutional (% of domestic)%

Industrial (% of domestic)%

Fire fighting (% of domestic)%

Losses & peaking

UFW / leakage%

Maximum daily factor×

Peak hour factor×

Applied on top of average daily demand.

Resultlive

Domestic demand: 1350m³/day
Commercial / institutional: 202.5m³/day
Industrial: 67.5m³/day
Fire fighting: 67.5m³/day
Sub-total (before losses): 1687.5m³/day
Total average daily demand: 2025m³/day
Total average daily demand: 23.438L/s
Max-day demand: 3037.5m³/day
Peak-hour demand: 4556.3m³/day

Reference: Per Nepal NWSSC / DWSSM guidelines. Maximum daily and peak hour factors are standard rules of thumb; refer to local design code for the project.