OLWASCO continuously invests in water and sanitation infrastructure across Nyandarua County β from water treatment plants and reservoirs to pipeline expansion and borehole development.
β
Completed
Construction of a full water treatment plant incorporating sedimentation tanks, filtration units, chlorination and a pump house. Water quality compliance improved from 32% to 62% following commissioning.
β
Completed
Construction of a 2,400 cubic metre reinforced concrete service reservoir at Vatican Quarry to increase water storage capacity and improve service hours across Ol'Kalou town and surrounding areas.
π Ongoing
Installation of decentralised wastewater treatment systems across peri-urban areas of Ol'Kalou Constituency β stabilisation ponds, constructed wetlands and treatment units as part of the Strategic Plan 2026β2030 sanitation expansion.
π Ongoing
Laying of HDPE distribution pipelines across Rurii Ward, Milangine Ward and Kaimbaga Ward to expand coverage from 42% towards the 2030 target of 65%. Includes 10 km bulk and 25 km distribution pipelines already completed.
β
Completed
OLWASCO has drilled and equipped 12 boreholes across the service area, including solar-powered pump installations. The programme grew from the original 1 borehole in 1973 to 12 operational boreholes today β a key component of water production capacity.
Construction of a 250 cubic metre elevated service reservoir at Captain to supplement storage capacity and improve pressure in upper zones of the distribution network serving Ol'Kalou town.
Phase 1 of the sewerage infrastructure system under the Kenya Towns Sustainable Water and Sanitation Services Project (KTSWSSP), funded by the African Development Bank. Includes sewer lines and treatment works for Ol'Kalou town.
Rehabilitation and expansion of the Kirima water intake on Malewa River to address capacity limitations and combat illegal abstractions by upstream farmers. Launched by H.E. Governor Kiarie Badilisha under the 2026β2030 Strategic Plan.
Contact our Technical Department for information about current or planned infrastructure projects in your area.
