Otnox
TZTanzania · Buyer: NGUJI PRIMARY SCHOOL

Water well drilling services

Open for bids
Published11/2/2026Published
Submission deadline11/5/202610:00 AM · UTC

Description

Domestic water well drilling service · Mobilization and Demobilization · Preparation and submission of ground water report and borehole completion report. The borehole completion report shall incorporate but limited to following items: Sketch drawing of borehole and it's uPVC screen and plain casing installation plan, water strikes zone static water level (SWL), Dynamic Water Level (DWL), Drawdown (DD), Abstraction point (pumping setting), Well recovery time Hr, water quality analysis and borehole GPS coordinates · Geographical and Hydrological survey. Perform a magnetic profilling and Resistivity measurements and determine most potential and appropriate location for soft water and productive borehole of at least 6 cubic meter per hour. The ground water survey shall conduct experience Hydrogeological consultant/expert. · Drilling and reaming of borehole to depth of 150m (it will base on Hydrogeological survey report) ensuring a minimum sustainable yield of 5 cubic meter per hours (5m3/hr) · Sampling (3m interval ) and storage of representatives Drill sample · Supply and install 152.4(ID) diameter, uPVC plain casing 6" · Supply and install 152.4mm(ID)diameter, uPVC (ID) screen (2-4mm) slot size casing 6" · Well Development including Surging (Well Flushing using air lift) untill water and the turbidity less than 5 NTU · Survey and installation of cement grouting at depth of 1.5 with the all necessary activities · Supply and install filter gravel (quartz 3-5 mm) 100kg bag · Supply and installation of inert backfil

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Contact Information

Company
NGUJI PRIMARY SCHOOL
Contact person
Email
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Source
Otnox

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