The results of field works at the site of groundwater pollution by petroleum products in Suida settlement of the Leningrad region are discussed. Drilling and hydrogeochemical survey allowed to map the pollution halo. A lens of free petroleum products was detected on the surface of the ground aquifer near the fuel and lubricant depot. Recommendations on organization of drinking water supply in the area and prevention of further groundwater contamination were given.
The purpose of hydrogeochemical studies conducted by the authors in the areas of distribution of ten gold ore fields with different landscape-hydrogeochemical conditions, was to develop a methodology for prospecting for primary mineralization.
