Project objective: In the inland area of Hajdúböszörmény (e.g. earlier in 2006, 2010) severe inland water problems occur in the rainy years, or in case of heavy rainfall, floods occur due to overloading along the main collector of the city, the 4-0-0-0 collector in Arad Street. Furthermore, the existing drainage system threatens the stability of loam houses in the Civic Road Landhouses under national protection of monuments. In addition, along the Civic street there are several important urban institutions (Napsugar Nursery School, Wastewater Treatment Plant, Dog Shelter, Lawn Master’s Plant, Economic Development Area), whose protection and damage control is of paramount importance. Tackling these problems imposes considerable burdens on the local government. Therefore, the Municipality wishes to take measures to prevent internal water conditions and damage and to mitigate unavoidable damage. The aim of the project is to draw up detailed plans to solve the above-mentioned problem and to build the necessary technical facilities. This reduces possible flood damage in the built-in downtown institutional areas and residential areas. In addition, there is a decade-long problem in Gönczy Pál street, the lack of drainage of rainwater, as some parts of it do not have a drainage of rainwater, but where there is a drainage of rainwater. Geology and geomorphology: The city of Hajdúböszörmény is situated in the village of Hajdúböszörmény on the loess back of Hajdúság, about 1 200 ha. There are uniquely favourable morphological conditions in the area and surroundings of the town. The terrain is evenly, relatively large, with a fall of around 10 in the direction of DK-Light. Only on the K side of the city there are more fragmented areas. The height difference between the highest DK and the deepest part of the city is about 35 m. The altitude of the terrain is around 145,00 mBf. on the east side and 110,00 mBf. Due to the high surface gradient, the edge of the municipality in DK is at risk of flooding from the outskirts (surface overflow). To prevent this, a belt canal was previously built (South lucern belt buckle) which leads the outlying waters to the reception area on the outskirts of the city. The area of the town belongs to the inland water system of the main channel of Hortobágy, the Kadarcs-Christmasfok inland watershed, directly to the Brassóéri canal and a small part to the water catchment of the Vidi-Éri canal. Both canals originate in or in the immediate vicinity of the city. The Kadarcs-Karácsonyfok inland water bay, together with other bays, belongs to the 4th inland water protection section of TIVIZIG, the centre of the inland water protection area is located at the TIVIZIG Hajdúszoboszló Technical Engineering. In the area of the city there is no main or association-treated canal. The recipients of the city’s inland water canal are mainly indirectly the Brasov Canal, directly the branch of Brasov-ér É-i. The former is managed by TIVIZIG, the latter is the Municipality. The main recipient of the channels planned in Phase I is the branch of Brasovér É-i, which is managed by local governments. The reception of rainwater in the NE part of the city is the municipal canal V-0-1, which connects to the Vidi-Ér canal. On the south side of the city, the above-mentioned Local Government-treated Southern lucern belt canal is hosted. Reception conditions are favourable and urban canals can be connected gravitationally to the outlying recipients in virtually all cases. From the point of view of flooding, the inner part of the settlement is outside the floodplain and is not endangered. Soil and groundwater conditions The upper layer of the soil is a 1-3 m thick humus loam in the vast majority of the city’s area, and below it is usually typical loess up to the ground water level. On the eastern edge of the city, the plain sands typical of Nyírság appear on the surface, which is typically intertwined with loess layers in a lane above the railway. On the W and NW side of the city, soil binding and clay content are increasing. Here you can find the former loam drilling sites, clay pits. The soil mechanical excavations carried out in recent years in connection with various design works have revealed layers of watertight red clay at a depth of 3-4 m in the north-western part of the city, indicating that the thick water-guiding layers observed on the east side gradually narrow down to the west. There has been a clear upward trend in groundwater levels over the last 50 years on the basis of soil assessment reports. Studies on the subject have shown that the city had a deep groundwater mirror (6-8 m below terrain) until the end of the 1960s, followed by a steady increase in groundwater levels. Due to the loess subsoil, this led to heavy building damage and the groundwater flooded cellars. In order to detect the situation of the groundwater level, 18 groundwater detection wells were established in the area of the city. E...