The task is stationary, located in Kołobrzeg, in the area of Orlei and Kashubian Streets. The project includes the construction of equipment for cleaning rainwater from rain manifolds of the East District in Kołobrzeg. The investment will be located on the plots of: • Circuit 13 dz. No. No. 367 and 267/2; • Circuit 19 dz. No.16/2, 16/3, 16/4, 16/8. The investment will be located in the urban area, which is inhabited. Due to the size of works related to the construction of rainwater drainage and rainwater purification facilities, the task will be carried out in one step and will consist of the following works: • demarcation of rainwater drainage network, • execution of excavations, • security of narrow-space excavations (wall and horizontal projection) along with protection of exposed armaments, • dehydration of the excavation, • construction of sewage roads, • laying of pipelines together with network facilities, • production of sprinklers and splinters together with compaction and demolition of walls reinforcement, • installation of cleansing equipment, • construction of wastewater systems, etc. As part of the planned discharge of rainwater, it is planned to implement water installations: • conversion of the S-8-4 ditch into a pipeline, S-8-4 • conversion of the S-8-4-1 ditch into the S-8-4-1 pipeline • conversion of the S-8 ditch into the pipeline S-8 • conversion of the S-8-3 ditch into the pipeline S-8-3 • the outlet to the ditch no S-8-3 • outlet of the outlet on the S-8 ditch