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 methods of development of the V.P. Grib diamond deposit, characterized by complex engineering-geological and hydrogeological conditions, are considered. Based on the analysis of the conditions and taking into account the specifics of the geological structure, a combined method of development is proposed. The characteristic of the environmental problems arising with this method is given and engineering ways of their solution are outlined.
