Reconnaissance boreholes are small diameter wells of the order of 20 to
45 cm, whose construction and equipment are similar to those of the exploitation drillings.
similar to those of the exploitation boreholes. Reconnaissance drillings allow to verify the hypotheses and to bring essential information
hypotheses and provide essential information (investigation,
measurements and tests, taking water and soil samples, periodic observations) as well as
observations) as well as logging and pumping tests.
pompa.
