Water facilities of Ternopil: hydrography, ecological condition and water supply

Abstract

Results. Generalization and systematization of data on the hydrographic network of the Ternopil city, allows us to state the fact that the main water bodies of the city is the Seret River – 242 km long (within the city 1.8 km) and the basin area 3900 km²; reservoir – an area of 300 hectares, nameless right tributary and canalized left tributary of the Seret River – the Rudka. The ecological condition of the Seret River within the city of Ternopil can be assessed as unsatisfactory. The main geoecological problems of the river are construction within the the coastal protection zone, water pollution by solid waste, exceeding the maximum allowable concentrations of suspended solids, sulfates, chlorides, nitrates and petroleum products. Environmental problems of the Ternopil reservoir are water pollution by chemical compounds of ammonium nitrogen, petroleum products, suspended solids and total iron; high siltation and pollution of the bottom sediments of the reservoir with heavy metals and mobile forms of biogenic elements. Water supply in the Ternopi cityl is carried out from two water intakes - Biletsky and Verkhnyo-Ivachivsky. Verkhno-Ivachivsky water intake is located at a distance of 3 km from the city landfill in the village of Malashivtsi. In the last few years, the process of drilling and using private artesian wells with a depth of more than 50 m has become widespread in the city. According to the results of the analysis, installed compliance with sanitary requirements of water samples in these wells, pH in all samples within normal limits (6,5-8,5).

Conclusions. Current trends in climate change and the growth of anthropogenic pressure on water bodies, increases the risks of degradation and changes in some components of the hydrographic network of the city. In Ternopil, it is necessary to modernize the centralized water supply system, reconstruct rainwater collectors and strengthen control over unauthorized discharges into surface water bodies. It is also worth designing another water intake for the city in environmentally secure conditions.