
- Located in Gatundu North , Kiambu County
- Ng’ethu Phase 1 commissioned in 1974 with nominal design output of 61,000m3/day
- Ng’ethu Phase II -Commissioned in 1984 with nominal design output 157,000m3/day
- Ng’ethu Phase III -Commissioned in 1997 nominal design output of 222,000m3/day
- Ng’ethu Treatment plant is designed to produce a rated nominal output of 440,000m3/day of potable water (Production).