Providing survey and consulting services on soil and groundwater contamination by a team of experts in assessing the direction of groundwater flow, installing observation wells, collecting soil and groundwater samples, analyzing in laboratories registered with the Department of Industrial Works, including the preparation of soil and groundwater rehabilitation plans in accordance with the Ministry of Industry’s announcement on the criteria for soil and groundwater contamination, soil and groundwater quality testing, information reporting, and the preparation of soil and groundwater quality testing results reports and reports proposing control measures and measures for soil and groundwater contamination, B.E. 2559.