The assessment of groundwater vulnerability: A case study in the Doroud-Boroujerd aquifer, Iran

Background: Agricultural, industrial, and residential activities have caused the vulnerability of groundwater Doroud-Boroujerd aquifer to pollution in Lorestan province, Iran. This study aimed investigate using a set intrinsic (DRASTIC, IV) specific (SI, LU-IV) assessment methods. Methods: The DRASTIC model with seven parameters depth, net recharge, media, soil slope, effect vadose zone, hydraulic conductivity has highest number parameters. total dissolved solids (TDS) index was used compare efficiency different Results: results showed two classes medium high an area 73.71% 26.3%, respectively, model. SI had low vulnerability. IV three vulnerability, which class 75.94%, largest extent. LU-IV also included four very (92.02%) validation DRASTIC, SI, IV, models TDS weak correlation between maps values, so it can be concluded that this alone is not good indicator for validation. Conclusion: methods generally highly vulnerable, recommended take necessary measures prevent, control, manage these valuable water resources.