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.