Borehole Drilling & Equiping

Since 2005/2006, NWCPC has drilled or rehabilitated and equipped over 1,128 boreholes throughout the country.  Most of these boreholes are located in Arid and Semi Arid Areas of our Country.  These boreholes have the capacity supply over 147,400 Cubic Meters (M3) of water per day to over 3,685,000 Kenyans.  Most of these projects targeted communities from areas susceptible to droughts.


Itoleka Greentech Borehole in Kitui County utilizes solar to pump water School Children Happy to get Water through solar pumps at Itoleka Greentech Borehole in Kitui County - Copy

Borehole Drilling 

9.1 Borehole Construction
9.1 Introduction
9.1.1 Drilling of boreholes is one of the functions that were transferred to NWCPC  in July 2005 after the water sector reforms..
9.1.2 Prior to the relocation of the Drilling Unit to the NWCPC an inventory of its facilities was done to verify the conditions of the equipment and also to assess the capacity of the NWCPC to undertake its mandate in the area of borehole drilling.
9.1.3 While it’s the responsibility of the NWCPC to undertake construction of the boreholes including managing the works outsourced to the private contractors, there is need to identify the roles other players will undertake. The main players have been the Water Service Boards who identify prioritize the projects and to whom NWCPC hands over the projects for management
9.1.4 The NWCPC has the capacity (personnel and other infrastructure) to supervise the construction works for the boreholes.
9.1.5 The procedure and roles of each party to be followed while undertaking the borehole works need to be understood by all the parties concerned. The objective for this document is to describe the roles and responsibilities of the key players and procedures to be followed in the execution of the works.
9.2 Schedule of Activities
9.2.1 There will be three phases in borehole drilling process. These are: Phase 1: Project Identification and definition. Phase 2; Project Implementation and Phase 3: Facility Handing Over.
Phase 1 and Phase 3 are carried out by the Planning and Design Department Construction Department focuses on Phase 2 of Borehole Drilling Process.
9.3 Procedure Flow Chart
9.4 Procedures for Borehole Works Implementing Agency
9.4.1 NWCPC NWCPC remains the first option institution to sinking boreholes for the WSBs as the construction arm of the Parent Ministry. Nonetheless the extent to which NWCPC can undertake the task is limited by the available plant and equipment. Most of the borehole plant and equipment at the disposal of the NWCPC is at various stages of serviceability. The present condition of the equipment is that they are requiring substantial repairing and rehabilitation. There is some budgetary allocation to undertake the repairs and rehabilitation works in each financial year which is insufficient to adequately maintain the equipment in good condition. NWCPC uses both in house and outsourcing until it develops full capacity to drill. A survey of the firms that have the resources and expertise to undertake borehole construction locally shows that there is sufficient local capacity to supplement NWCPC capacity. The criteria to be followed in determining the boreholes the NWCPC will construct include but not limited to: Those located in remote areas and also sparsely distributed. The use of NWCPC in such sites would result in huge savings in the high costs of mobilization and demobilization. Those located in areas that are likely to have ethnic conflicts and those that may require extra security. Use of contractors for such sites may result in escalated costs of borehole construction, especially if the contractor’s plant and equipment were to remain idle. Intervention developments that require rapid response that may not wait for normal contracting processes.
The procedure that will be adopted when the implementing agency is the NWCPC will include:
Identification of the requirements
i. Plant and Equipment: assessment of the required plant and equipment and their availability.
ii.Personnel requirement: Identification of the staff to be involved including possibility of hiring local labour.
iii. Availability of construction materials and plans for their acquisition.
Site Possession
The WSB will be required to handover the site to the NWCPC before the work commences. This handover will be in the form of signing the handover agreement form between the NWCPC and the WSB. A sample of the form is attached as Appendix 2. The Handover agreement form contains basic details describing the works to be performed.
9.4.2 Out-Sourcing
Where the implementing agency will be the contractor, the procedures followed includes: Pre-qualification of Contractors
Prequalification of contractors will be done according to the “procurement standard operating procedure”. Appointment of the Project Manager NWCPC will appoint a Project Manager (PM) who will be in charge of the project. The Project Manager (PM) will report to the General Manager of the NWCPC. The Project Manager (PM) will be responsible for all the technical, managerial, supervision and coordination work of the project. The PM will be assisted by other staff of the NWCPC as per the hierarchy of the NWCPC. The Project Manager will also liaise closely with the WSB officer during the execution of the project. Evaluation and Award Evaluation and award of contracts will be done according to the “Procurement Standard Operating Procedure”.
9.4.3 IMPLEMENTATION NWCPC Option Mobilization
After the site possession, the NWCPC Construction Unit will be required to mobilize to site immediately. The following will be quickly set-up at the site in readiness for actual drilling work.
• Camp setting
• Clearance of the site-where possible, local labour will be contracted for site clearance.
• Fencing off the facility and setting out to preclude any possible intruders and to safeguard the security of the facility. NWCPC Drilling and Equipping
NWCPC will set up teams that will perform specific tasks. These teams will be well coordinated to ensure timely carrying out of the specific activities and will include:
• The drilling team for general site clearance, camp setting, e.t.c
• The same team for drilling, casing, gravel packing development  test pumping  and capping the borehole
• The team for Installation  of pump
• The team for construction of the superstructure, installation of power in case of generator or solar source. This will also be the de-mobilizing team for equipping.
A work programme will be prepared before the commencement of the work and will be adhered to.
To avoid the drilling equipment lying idle at the site, the equipment will be moved to site when the preliminary works are complete and drilling ready to commence. Work Programme NWCPC will prepare a work programme which may be shared with the WSBs. The work program will also indicate the various key activities and when such will be accomplished. work shall be executed in accordance with the Standards and
Specifications for drilling of boreholes. Outsourcing Option Commencement
The contractor will be expected to commence the drilling work within twenty eight (28) days after the signing of the contract agreement. Site Possession The WSB will be required to handover the site to the NWCPC, which in turn will handover the site to the contractor. The Contractor will be his responsibility to provide security for the site for the entire period from the time the site is handed over. The contractor will erect on site such facilities as site office, e.t.c. Contractor Drilling and Installation
After the site handover, the contractor will be expected to immediately mobilize to the site all plant, equipment, personnel and other resources required for the due execution of the works. The drilling exercise and equipping where applicable will proceed in such a manner that there will be no delay in the execution of the works. Where the contractor is expected to equip he will use the NWCPC equipping procedures. Work Programme Before commencement of the works, the contractor will provide a work programme detailing how to execute the works, resources available (personnel & plant) and the schedule of works. The NWCPC will supervise the contractors during the implementation of the works. There will be regular site meetings between the contractor, his site agent, the NWCPC Project Manager and the representative of the WSB. The schedule of works to be undertaken and the quality control measures and tests including pumping tests will be specified in the contract award documents.
10.1.1 Hydro-geological Survey Reports
10.1.2 Approved Resource Requirements
10.1.3 Site Handing-Over Form
10.1.4 Borehole Completion Record
10.1.5 Borehole Completion Certificate.