Methodical studies of water sample preparation and analysis of organic pollutants in ultra trace level are presented. The low contaminated drainage area of the former "Salt Lake" was chosen for example. An aim of this study was to generate a method for extracting and analysing organic pollutants, that are characteristic for this special region (e. G. hydrocarbons, PAH, PCB, pesticides). Additionally this method had to be tested analysing water samples from the "Salt Lake" region at random. For sample preparation solid phase extraction (SPE), solid phase micro extraction (SPME), and stir bar sorptive extraction (SBSE) were used. The extracts were analysed by GC/MS. The use of a combination of polymer and RP C-18 phases for SPE leaded to an sensitive but labour-intensive extraction method. Using SPME with polyacrylate fiber was an fast alternative for samples being contaminated in a concentration range above 0.1 µg/L. SBSE with solvent back extraction was not a suitable method for extracting water samples in ultra trace level. By qualitative analysis of water samples from the "Salt Lake"region using SPME aliphatic hydrocarbons, polycyclic hydrocarbons, and benzophenone were identified. Quantitative analyses using SPE proved the low contamination level of examined waters. Sporadically pesticedes were detected at a concentration level below the threshold value for drinking water. PAH and benzophenone were detected in all examined waters up to 0.4 µg/L. The waters around a former mineral oil factory contained aliphatic hydrocarbons up to 0.8 µg/L.