Introduction .With a significant number of water bodies in Ukraine (only 2,000 small rivers), the descriptive characteristics of the ecological situation occupy a significant amount, which requires unification and encryption. Dr.Ph. Klymenko M.O, Dr. Ph. Gryb J.V. made the unification of research materials by blocks: type of basin-morphometric of the catchment surface, floodplains and riverbeds - quality of the aquatic environment - production characteristics - socio-demographic - block of economic analysis of profitability in river basins and cluster costs analysis of the state of the components of the ecosystem and assessment of the basin as a whole. The study of individual elements of the water basin (composition and quality of the aquatic environment, the state of the catchment surface, ichthyofauna, forage base of aboriginal ichthyofauna, the impact of economic activity) provides some information. There is a significant array of surface water monitoring data (hydrochemistry, ecology, hydrobiology, ichthyology, etc.), attributed to the middle and end of the twentieth century. Here it should be noted the works of Kononenko G.D., Gryb J.V., Alekseevsky V.E, Baranovsky V.A, Klymenko M.O, Tsvetova O.V, Sondaka V.V, Chernyavskaya A. P., Zhukinsky V.N and others. They established the regional features of the chemical regime of surface waters, developed a methodology for assessing the quality of surface waters and the state of transformation of the catchment surface, the peculiarities of the formation of crisis situations. Dr.Ph. Gryb J.V. researches of a chemical mode of surface waters on phases of a hydrological mode for the period from 1970 to 2000 are carried out. Kononenko G.D. conducted mapping of the territory of Ukraine by the main ions of the mineral composition of water. The State Institute of Eastern and Northern Europe (Germany) together with the Institute of Geography of the National Academy of Sciences of Ukraine on the basis of applied research of Ukrainian scientists: Rudenko L.G., Chernyavska A.P., Gryb J.V. with the participation of scientists G. Friedline, G.A. Vernichenko, T.P .Balashova, I.P. Semenova conducted a study of the state of rivers in Ukraine and drew up a map of water quality and suitability for use (1995). A map of soils of Ukraine, stock-forming and underlying rocks was also issued. Purpose . Among the important scientific results of the study is the need for unification and unification of river basins. Methodology According to the EU framework directive, the river basin and its elements are accepted as a unit of spatial research of water bodies: channel, floodplain, accessory network (number of intermediate ecotones). These include the following elements of the basin: first-order currents, second-order tributaries, floodplain. Old villages, floodplain lakes, swamps, meadows, springs, as well as subsystems of the catchment area: forest, water mirror, plowed and barren lands, urban areas and infrastructure. Assessment of the condition is carried out on three levels: good, satisfactory, bad. Collectively, the water basin is accepted as a biome that shapes the quality of surface waters, their productivity, diversity of flora and fauna. The hydrographic network itself forms the landscape and connects its elements through hydro-ecological corridors - river systems. The following mathematical dependences are used in the creation of the bio-skeleton framework of the water basin, with the increase of the values of the characteristics the value of the golden root r1 is 1.68 with the decrease of r2 - 0.68. In the pentosystem series of characteristics (classes) the numbers of phyto-swings for biological processes 1,2,3,5,8,13,21,34,55 are used. Results. An example of encryption of field research materials of the Lviv River (a tributary of the first order of the Pryt River) is presented in formula (1) АП; R1; Z3; Z42; E1; L; Ie; b5 5; R3; Ke5; St 3,0. (1) Plain part of Ukraine, Western Polissya region, Dnieper river basin, main canal, regulated, one intermediate Eco tone (channel reservoir), water is weakly mineralized, channel is straight , water quality class one, fish productivity is weak, the state of the basin is over drying, stability is low (low water, segmentation of the channel by locks, protective sand from unaligned slopes of the shore). Similarly, other blocks can be coded. In the perspective owe will obtain the results of the correlation with the conclusions of other scientists, in particular Klymenko M.O., Gryba J.V. and others. Thanks to encrypting the data by blocks of pool structure, we can unify the methods of research, facilitating the work of researchers and students. Conclusions 1. The economic and ecological framework of the water basin is one of the leading blocks for assessing the ecological situation. And the main indicator is the ecological and economic potential of the territory and the cost of the basin. 2. To assess the transformation of the state of the basin, reference values of the state of the enterprise are needed. 3. In assessing the situation, the final block is the economy and demographic situation - the cost of living and its duration.