A least squares method for identification of unknown groundwater pollution source

Abstract The identification of unknown groundwater pollution sources is one the most important premises in prevention and remediation. In this paper, an exploratory application a least squares method to identify source conducted. Supported by small amount observation data analytical solutions pollutant transport model, initial concentration, leakage location mass are identified using under sand tank experiment gas station area. experiment, it found that fitting errors three cross-sections within 6%. area, results nearly consistent with site investigation information. indicate has considerable values sources.