The withdrawal of water sources concluded the reuse of treated wastewaters, especially for non-potable purposes. Agricultural use of the reclaimed wastewaters is one of the reuse options. However health considerations of the reuse of reclaimed wastewaters for public related purposes are underestimated, since wastewaters contain a variety of microbial pathogens, which may be transmitted to workers and consumers through the crops irrigated. Of these, parasitic eggs have a special place, as they are capable of surviving in the soil for months or even years, depending on environmental conditions. There is insufficient accumulated information on the health related criteria for the reuse of treated wastewaters in Turkey. The aim of this study was therefore to determine the helminthic eggs in raw sewage and in effluents of ASKi municipal wastewater treatment plant in Ankara. The study involved examining to decide whether these organisms exist in the wastewaters at all, and if so in what concentrations. Modified Bailenger&rsquo / s method, which published in the &ldquo / WHO Laboratory Manual of Parasitological and Bacteriological Techniques&rdquo / and &ldquo / U.S.EPA ICR Microbial Laboratory Manual&rdquo / were used in developing the specific methods used in this study.