Surface run-offs due to snow melting and rainfall gather dust, rubbish, oil-products and other pollutants and flow into nearest water basin that results in pollution of environment and surface water bodies. The article describes a package unit of waste water physical and chemical treatment for enterprises of railway and automobile transport. It also can be used for elevated track of railway sorting yard. The unit consists of degritter, holding tank, floater, granular and sorption filters. The unit was tested in laboratory and pilot conditions. It was put in a evaluation test with standardized test solution and real waste water.

This article raises the problem of providing rural residents with drinking quality water and routing the water supply network. It is advisable to install a centralized water supply system. In view of the existing structure of the territories of rural settlements, cramped conditions and numerous structures, the network will be laid in trays. There will be two pipelines in the trays. One pipeline will be used for household and drinking needs, the other for irrigation of green spaces. The article discusses the technological scheme of the existing treatment facilities, and the technological scheme of the projected treatment facilities, and also presents the layout of the treatment facilities.

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This paper considers the impact of surface wastewater from residential areas and industrial enterprises, including enterprises of railway transport on ecological environment. It also describes the content of harmful substances of organic and inorganic origin in the surface runoff. The researchers consider practical methods of cleaning wastewater from oil-containing contaminants and put forward technological schemes of surface wastewater purification including its biological treatment.