Water quality monitoring and assessment of Nairobi rivers

The Government of Kenya through Athi Water Works Development Agency (AWWDA) intends to implement the second phase of Nairobi Rivers Basin Rehabilitation and Restoration Program: Sewerage Improvement project Phase II (NaRSIP-II) funded by African Development Bank (AfDB) in order to improve access to improved sanitation services from 48% to 60% in Nairobi city; while improving the quality of the Rivers within the Nairobi Metropolis.

The consulting services (“the Services”) involve undertaking water quality assessment of Nairobi City and satellite towns rivers and subsequently carry out quarterly surface/ground water quality monitoring in order to document the baseline conditions, challenges, gaps and recommend improvement and/or mitigation measures.

The scope of services for the Consultant will include but not be limited to:

1. Study the existing Nairobi and Satellite towns Rivers Water Quality monitoring programs and protocols to identify the strengths, gap and the short, medium and long-term needs.
2. Use a consultative and evidence‐based approach to select critical locations for the baseline study, identify and map the various sources of pollution into the Nairobi Rivers;
3. To facilitate dialogue among government agencies that conduct water quality monitoring along Nairobi and satellite towns Rivers;
4. Conduct Water Quality Monitoring and assessment for Nairobi and Satellite towns Rivers;
5. Propose a suitable and sustainable monitoring program in collaboration with the Government Agencies involved in water quality monitoring and assessment of Nairobi and Satellite towns Rivers;
6. To Determine trends in the quality of the aquatic environment and how the environment is affected by the release of contaminants, by other human activities, and/or by waste treatment operations, (“impact monitoring),
7. To Determine ecological flows;
8. To assess the nature and extent of pollution control needed for Nairobi and satellite towns Rivers.
9. To evaluate effectiveness of pollution-control measures already in existence; and propose measures for improvement
10. To assess assimilative capacity of a water body, thereby reducing costs of pollution control;
11. To understand the environmental fate of different pollutants; and assess the suitability of water for different uses.