The main aim of this study was the analysis of land use of pond’s basin on the quality water in pond. The subject of the study was the small reservoir in Zelków. The paper presents the results of field studies carried out in 2008–2011. The basis for research water samples were collected regularly, at monthly intervals. The collected material was subjected to laboratory tests using generally common analytical methods. The collected data were subjected to statistical analysis. The obtained results allow to conclude that the land use of catchment is one of the key factors influencing water quality. Small water reservoirs located in rural areas are often highly contaminated, especially in terms of the concentrations of phosphate and ammonium nitrogen or salinity.

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