Common Market for Eastern and Southern Africa, COMESA,African Union
08-04-2025
Work Detail
Quotation are invited for Drilling of Boreholes under Water Resources Funds in Chiradzulu South, West and East Constituency 1.1 Mobilization and demobilization of manpower, equipment & construction materials L.S 1 1.2 Site preparation & rigging up before drilling and site clearing and rigging down after drilling L.S 1 1.3 Hydrogeological assessment and geophysical survey for borehole siting including report L.S 1 2. BOREHOLE DRILLING 2.1 Drilling the first 20m depth M 20 2.2 Drilling from 20m downwards M 30 2.3 Backfill unsuccessful BHs No 1 3. WELL LOGGING 3.1 Lithological logging L.S 1 3.2 Electrical logging L.S 1 4. SUPPLY AND INSTALLATION OF MATERIALS 4.1 Supply and installation of 113mm outlet diameter UPVC casing including bail plug and centralizer as specified m 28 4.2 Ditto but screen including centralizers as specified m 22 5. GRAVEL PACKING AND WELL DEVELOPMENT 5.1 Supply and packaging well sorted as described in the specification m³ 0.6 5.2 Supply and place puddle clay seal as described in the specification L.S 1 5.3 Well cleaning & development as described in the specification Hr. 4 6. PUMPING TEST 6.1 Conduct constant pumping test as described in the speciation Hr. 4 6.2 Recovery tests as described in the specification Hr. 1 7. SANITARY & PROTECTION WORKS 7.1 Grouting with cement supply up to 5m depth as described in the specification m³ 0.1 7.2 Construction of concrete pad L.S 1 W including 6m length drainage ditch as per the drawing 7.3 Construction of soak away including all associated works L.S 1 8. SUPPLY AND INSTALLATION OF HAND PUMP 8.1 Supply and installation of Afridev pumps including all tools and fishing equipment complete with security system No. 1 9. MISCELLANEOUS 9.1 Chemical and bacteriological water quality analysis and report L.S 1 9.2 Well disinfection L.S 1 9.3 Final borehole construction report No. 1 9.4 Ground water abstraction fee L.S 1 Tender Link : https://ppda.mw/storage/documents/opentenders/Borehole%20Drilling-South.pdf
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