Agglomeration Zaleszany (according to resolution No XII/206/15 of the Podkarpackie Voivodship’s Sejm of 31 August 2015) with an equivalent population of 9 560, is located in the villages of Zaleszany, Kępieny Zalesz, Zbydniów, Turbia, Pilchów, Agatówka, Obojna, Dzierdziówka, Majdan Zbydniowski, Wólka Turebska, Kotowa Wola in Zale Zapieków. I_d agglomerations, as PLPK035N and I_d treatment plant, as PLPK1820N and Master Plan 2017 in the column: I_d agglomeration, as PLPK035 with an actual RLM of 9560. According to statistics from the sanitary system, only 44.6 % of its population used at the end of 2015. The total number of RLM is 4,075. The percentage share of users of sanitary sewage system is 42.62 % (4075/).Year after completion of the project, i.e. in 2020 (at the end) it is assumed that 1 786 people will be connected to the built sanitary network. A total of 44980.06 m of sanitary sewage system (including 8627.10 m not eligible for funding) will be built.The percentage share of sanitary sewers in the agglomerations will be 61.31 % (5 861 RLM/9560 RLM). The scope of work also provides for the use of RES (hybrid tube illuminating pumping stations). In addition, the project envisages the expansion of the existing mechanical and biological EWW in Zaleshanski Kępi (Lapensian Municipality) in sequential technology with the current Qdśr=820 m³/d capacity to the design performance Qdśr=1015 m³/d, for the total number of supported residents equivalent to RLM = 9560. The aim of the project is to improve quality and prevent environmental degradation by reducing water and soil pollution and protecting natural ecosystems. From a social point of view, it is extremely important to improve the social and economic level of the municipality and the state of the environment.