Table 1 lists the ratings and weights according to the criteria for each
parameter. According to the scoring method of the existing GALDIT, the
highest score was 10, whereas the lowest was 2.5. The highest score of
10 was divided using the quartile method into 10, 7.5, 5, and 2.5,
according to the parameter range. In this study, the GALDIT factor
variable range and the importance rating in the two columns were
modified in the right column of Table 1. Thus, the highest score of 10
was divided using the decile method, and a score between 1 and 10 was
assigned for the modified importance rating. The existing quartile
method was used to classify aquifers according to their hydrogeological
characteristics. The new distributions of scores for other parameters
are listed in Table 2.