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Authors
Affiliations
1 Agricultural Refinance and Development Corporation, Dr. Annie Besant Road, Worli, Bombay 400018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 22, No 3 (1981), Pagination: 131-136
Abstract
The average transmissivity value arrived at from analyses of pump test data for granitic rocks is 27.32 m2/d and basalts is 49.68 m2/d. The designed specific capacity in order to get an annual draft of 12000 m3 is 561pm/metre drawdown. An optimum diameter of wells in granitic and basaltic rocks for an annual draft of 12000m3 are 8.6 and 6.0m respectively with 2 m of saturated material. These are true only for wells located in groundwater worthy areas of significant transmissivity values.