Request for the expression of interest for the hiring of consultancy services of sierra Leone’s hydrogeological groundwater mapping
Date of issue: 25th August 2021
Mode of Financing: Government of Sierra Leone
IFB No: NWRMA/HYDRO/ICB/2021/002
The National Water Resources Management Agency has received funds from Government of Sierra Leone) for the procurement of a consultant to conduct Sierra Leone’s Hydrogeological Groundwater Mapping and now invites sealed bids from eligible bidders for the provision of the following services:
In recent years, population increase, and the proliferation of organisations involved in mining, agribusiness, and other industries have posed a severe threat to groundwater resources. The 2016 water point mapping that mapped about 28,000 groundwater points across Sierra Leone and those water points mapped about 40% are not functional all year round. One of the reasons identified for the non-functionality of water points is seasonality fluctuations in the groundwater levels. Another reason for the non-functionality of water point is that poor sitting as information on the locations of sustainable aquifers is limited. Poor sitting is also due to the lack of detailed geological information.
Also, climate change impact like a decrease in rainfall could be contributing to a reduction in groundwater recharge. Also, there is an alarming change in the land use and land cover pattern of Sierra Leone, which is because of deforestation, new settlements, mining activities, etc. It has exposed the soil cover leading to high runoffs and a decrease in infiltration. These areas of deforestation could potentially be areas of groundwater recharge and discharge.
Currently, there is no groundwater database and a comprehensive groundwater information system for effective groundwater management. Groundwater data is presently being collected by different water users like borehole drilling companies, mining companies, research, and other entities.
These challenges are also localised in the Moyamba district. The 2016 WASH baseline survey shows that 27% of their water points are not functional all year round. Also, as Moyamba is a coastal district, groundwater close to the Atlantic Ocean are prone to seawater intrusion.
By conducting a detailed study of the hydrogeology, the determination of large-scale geological structures like faults, knowing the aquifer properties, determining the locations for groundwater recharge and discharge locations, and creating groundwater information management systems will ensure the groundwater at Moyamba district are effectively protected and managed.
Bidding is open to all consultancy firms who can demonstrate qualification in the following personnel:
Hydrogeologist (Team Leader)
Interested bidders may obtain further information and inspect the bidding document at the address below between 25/08/2021 – 7/09/2021. Bidding documents may be purchased upon payment of a non-refundable fee of five hundred thousand leones (Le 500,000).
Bids must be delivered to the address below on or before 08/09/2021 at 12:30 pm. All bids must be accompanied by:
Bids will be publicly opened on 08/09/2021 at 1 pm, in the presence of the bidders’ designated representatives and anyone who chooses to attend, at the address below. Late bids will be rejected and returned unopened to bidders.
National Water Resources Management Agency
29 King Harman Road