1. The Contractor shall mobilize and put into operation all equipment and plants required to undertake the Contract. Mobilization shall include the transferring to the job-sites of all equipment, plants, […]
Borehole development is carried out either by over-pumping or by air-lift pumping and it must achieve a nominal yield of at least 30% greater than the operating yield of the […]
Cassing is large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. cassing is set inside the drilled well to protect and support the […]
The borehole development process consists of cleaning the aquifer area in the immediate vicinity of the screen to eliminate drill cutting, drilling fluid and sediment. Borehole development is carried out […]