Tenders are invited for Drilling Two Boreholes & Rehabilitation of One in Kajo-Keji County,Ces and Technical Drawings for Wider Circulations. 1 Mobilisation/demobilisation of personnel, materials and equipment to the drilling site. 2 Ls 2 Geophysical survey performs VES ground water survey, report before drilling commencement and clearing bushes at the drilling site. 2 N/A 3 Drilling borehole at suitable diameter of 6.5" with depth of 120m or depending on geophysical survey and perform lithological logging and provide complete report. 240 Meter 4 Supply and install 5" internal diameter UPVC casing 30 plain and 10 screened casing according to the aquifers placements, gravel pack analysis and packing properly 80 Ps 5 Well development to remove debris from the borehole and Step draw pumping test/constant discharge test (well development) and provide a report on the pumping test in the general report 12 hr 6 Install pedestal with concrete mixture of 1:2:3 ratio, including based wire mesh. 2 Stand 7 Construct a circular platform with drainage channel measuring 6m long, with gradient/slope of 2 including soak pit measuring 0.8x0.8x0.5m. With the following ratio 1:2:3. 2 N/A 8 Construct a slanting standing platform either by concrete or bricks as shown in the drawings thats to support persons with wheelchair accessing the pump handle. 2 N/A 9 Supply and Install UPVC threaded plastic rising main pipe 3" with stainless connecting rods. 36 Pcs 10 Supply and install pump cylinder of Indian Mark 11 or extra deep (Mk111). 2 Pcs 11 Supply and install pump head with accessories (including handle), the water tanks and spout (water outlet) should be fabricated such that the spout and the pump handle are in 90° to each other, to enable holding of water container and pumping at the same time. 2 Ass 12 "Conduct borehole water chemical analysis to 2 NA 13 determine its suitability for drinking that would meet WHO water standards." 2 Stand 14 Fabricate, design and install a visibility signpost measuring (100x120) cm board and stand of 1.5 above the ground. 2 Trip Tender Link : https://comms.southsudanngoforum.org/c/tenders
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